Series 2
Variable Displacement Piston Pump
ACL 64 -105cm3/r (3.9 - 6.4in3/r)
Series 2 Variable Displacement
Piston Pump
ACL
Table of Contents
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Specifications and Performance Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Charge Pump Performance Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Model Code. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 - 7
Pump Features and Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Control Options: Position 18-19
Manual Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 - 10
Hydraulic Remote Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Electronic Proportional Displacement Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Solenoid Control with Swashplate Feedback Sensor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Forward - Neutral - Reverse Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Controls Special Features Destroke Valve. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Pump Dimensions
Model 64, 75 - Opposite Side Porting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 - 16
Model 64, 75 - Same Side Porting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Model 89, 105 - Opposite Side Porting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 - 19
Model 89, 105 - Same Side Porting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Input Shaft Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Auxiliary Mount Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 - 23
Operational Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Application Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 - 27
Hydraulic Fluid Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 - 29
2
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
The Eaton Series 2 Variable
Displacement Piston Pump
The Advanced Series 2 heavy duty pump, with a
cradle swashplate design, combines the time-tested
reliability you expect from Eaton with compact
packaging, exceptional control and quiet operation.
Features
Typical Applications:
• 430 bar pressure rating
• Road roller/compactor
• Speeds to 4510 rpm
• Harvesting equipment
• Accurate controllers
• Lift truck
• Quiet operation
• Wheel loader
• Optional input shafts
• Agricultural sprayer
•A
uxiliary and industrial
drives
The Series 2 single piece
pump housing provides
exceptional strength and
soundproofing. Eaton’s
cast iron housing has only
one major opening versus
two openings for competitive pumps. This provides a
stronger, more rigid pump
housing and reduces the
number of gasketed joints.
The high-strength, onepiece swashplate has the
swashlever and servo-pin
integrated into the swashplate, delivering increased
reliability without adding
extra weight.
A large diameter single
servo piston permits pump
operation at lower charge
pressures, minimizing
parasitic charge pump
losses for increased overall
pump efficiency. A large
centering spring, housed
within the servo piston,
returns the pump to neutral
in the event of control
pressure loss.
The new integral gerotor
type charge pump com-
bines excellent suction/
speed capabilities in a
compact design. Several
displacement options are
available to suit the needs
of every application, including tandem pumps.
A variety of available
drive shaft configurations
– straight keyed, splined,
or tapered – ensures
the proper shaft for your
application.
The serviceable bi-metal
bearing plate has steel for
high pressure capability
and a bronze bearing face
for high speed capabilities.
SAE auxiliary mounts:
“A,” “B,” “B-B” and “C”
are available with and without charge pump. Excellent
torque capability allows
high horsepower to work
circuits without multiple
pump drives.
The main system ports –
SAE code 61 and code 62
– are available with SAE or
Metric threads. Opposite
side and same side configurations are now available
to accommodate a wide
range of installations.
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
3
Specifications and Performance
Model 64 75 89 105
Displacement cm /r (in /r) Input Mounting Flange Max. Shaft Speed*
RPM @ Max. Displ. Nominal Pressure*
bar (psi) Peak Pressure**
bar (psi) Case Pressure Cont. bar (psi) Max. Output Flow
l/min @ 240bar gal/min @ 3500 psi Input Torque
N·m @ 240 bar lbf·in @ 3500 psi Temperature Rating
Weight (opposite side porting) 64 (3.9) SAE C 75 (4.6) SAE C 89 (5.4) SAE C 105 (6.4)
SAE C
4165 4165 3720 3720
430 (6250) 430 (6250) 430 (6250) 430 (6250)
500 (7250) 2,25 (40) 13,8 (200)
500 (7250) 2,25 (40)
13,8 (200)
500 (7250) 2,25 (40)
13,8 (200)
500 (7250)
2,25 (40)
13,8 (200)
255 (67.2) 301 (79.5) 318 (84.1) 376
(99.4)
256 (2278) 82°C (180°F) 58 kg (128 lbs) 303 (2694) 82°C (180°F)
58 kg (128 lbs) 358 (3189) 82°C (180°F)
81 kg (178 lbs) 424
(3771)
82°C (180°F)
81 kg
(178 lbs)
3
3
* Nominal Pressure: Max delta system pressure at which component fatigue does not occur (pump life estimated by bearing life).
** Peak Pressure: Max operation pressure which is permissible for a short duration of time (t < 1 sec).
Performance Data
Input Torque vs Speed
500
Output Flow vs Speed
400
[105.4]
[4425]
105 cm3/r
[6.4 in3/r]
400
[3540]
89 cm3/r
[5.4 in3/r]
300
[2655]
75 cm /r
[4.6 in3/r]
3
64 cm3/r
[3.9 in3/r]
200
[1770]
250
[66]
75 cm3/r
[4.6 in3/r]
64 cm3/r
[3.9 in3/r]
200
[52.8]
150
[39.6]
100
[26.4]
50
[13.2]
500
1000
1500
2000
2500
3000
3500
4000
0
Pump Speed (rpm)
System pressure. . . . . . . . . . . . . . 240 bar (3500 psi)
Oil viscosity. . . . . . . . . . . . . . . . . . 10 cst (60 sus)
Temperature . . . . . . . . . . . . . . . . . 82°C (180°F)
4
105 cm3/r
[6.4 in3/r]
89 cm3/r
[5.4in3/r]
300
[79.2]
Output Flow L/min. [Gal/min]
Input Torque Nm [Lbf-in]
350
[92.4]
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
500
1000
1500 2000 2500
Pump Speed (rpm)
3000
3500
4000
Performance – Charge Pump
Eatons Series 2 pump offers a choice of five integral
charge pump displacements. The Charge Pump design
allows greater through-torque for tandem pumps and
multiple motor applications. These charge pumps include
The charge pump generates a low pressure flow of
oil to perform the following
functions:
1. K
eeps the closed loop
circuit full of oil.
2. P
rovides control pressure to the pump’s displacement control servo
valve for easy control of
the transmission’s output speed.
a large standard suction port and a gauge/pilot pressure
port. Charge pump pressure side filtration is also available
(see page 29).
Charge Pump Performance
Charge Pump Displacement* Maximum
Shaft Speed
Output Flow**
at Max Speed
Input
Horsepower**
at Max Speed
Series 2 Pump
Displacement
cm3/r
in3/r
13,917,421,027,934,7
0.851.061.281.702.12
rpm
l/min
gal/min
43003700330027002250
59,964,369,275,278,2
15.817.018.319.920.6
kW
2,102,252,422,632,74
HP
2.813.023.253.533.67
64 cm3/r (3.9 in3/r)
75 cm3/r (4.6 in3/r) StandardOptionalOptionalOptionalN/A
89 cm3/r (5.4 in3/r)
105 cm3/r (6.4 in3/r)OptionalStandardOptionalOptionalOptional
3. P
rovides cool, clean oil
from the reservoir to
keep the transmission
pump and motor well
lubricated and cooled.
4. S
upplies a positive boost
pressure to the pistons
of the piston pump and
piston motor.
Charge Pump Power vs Speed
Charge Pump Flow vs Speed
3.4
[4.50]
Theoretical input power
Kw [Hp]
2.6
[3.50]
2.2
[3.00]
1.9
[2.50]
1.5
[2.00]
34,7 cm3/r
[2.12 in3/r]
27,9 cm3/r
[1.70 in3/r]
21,0 cm3/r
[1.28 in3/r]
17,4 cm3/r
[1.06 in3/r]
13,9 cm3/r
[0.85 in3/r]
1.1
[1.50]
0.7
[1.00]
0.4
[0.50]
500 1000 1500 2000 2500 3000 3500 4000 4500
Charge Pump Speed (rpm)
Theoretical output flow
L/min. [Gal/min]
3.0
[4.00]
98
[26.0]
90
[24.0]
83
[22.0]
76
[20.0]
68
[18.0]
61
[16.0]
53
[14.0]
45
[12.0]
38
[10.0]
30
[8.0]
23
[6.0]
15
[4.0]
8
[2.0]
34,7 cm3/r
[2.12 in3/r]
27,9 cm3/r
[1.70 in3/r]
21,0 cm3/r
[1.28 in3/r]
17,4 cm3/r
[1.06 in3/r]
13,9 cm3/r
[0.85 in3/r]
500 1000 1500 2000 2500 3000 3500 4000 4500
Charge Pump Speed (rpm)
Oil Viscosity . . . . . . . . 10 cst (60 sus)
Temperature . . . . . . . 82° C (180°F)
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
5
Model Codes
A CL
1, 2 ,3
The following 31-digit coding system has been developed
to identify all of the configuration options for the Series 2
hydrostatic pump. Use this model code to specify a pump
with the desired features. All 31-digits of the code must
be present when ordering. You may want to photocopy
the matrix below to ensure that each number is entered
in the correct box.
0 5 4 02 L 0 B TT WW 12 EC
4, 5, 6
7, 8
1, 2, 3
Pump Series
ACL – Hydrostatic-Heavy
Duty Variable Pump
(Series 2)
4, 5, 6 Displacement
064 – 64 cm3/r (3.8 in3/r)
075 – 75.3 cm3/r (4.6 in3/r)
089 – 89 cm3/r (5.4 in3/r)
105 – 105 cm3/r (6.4 in3/r)
7, 8 Input Shaft
03 – SAE C-C (1.50) diameter
tapered with (.375) x
(1.00) square key
14 – SAE C 14 tooth 12/24
pitch spline
21 – SAE C-C 21 tooth 16/32
pitch spline
23 – SAE C-C 23 tooth 16/32
pitch spline
9 Input Rotation
L – Counterclockwise
(lefthand)
R – Clockwise (righthand)
10 Valve Plate
0 – V-groove
1 – Propel
3 – Quiet valve plate
11
ain Ports (Includes
M
Gage Ports)
A – 25.4 (1.00) - code 61
per SAE J518
B – 25.4 (1.00) - code 62
per SAE J518
E – 25.4 (1.00) - code 62
per SAE J518 same side
location
F – 25.4 (1.00) - code 61
per SAE J518 same side
location
6
9
10
12,13
11
12, 13
14, 15
16, 17
igh Press Relief
H
Valve Setting
Port A (Pos. 12)
Port B (Pos. 13)
0 – None
M – 207 bar (3000 psi) with
2 bar (29 psi) check valve
spring
N – 241 bar (3500 psi) with
2 bar (29 psi) check valve
spring
P – 276 bar (4000 psi) with 2
bar (29 psi) check valve
spring
R – 310 bar (4500 psi) with 2
bar (29 psi) check valve
spring
S – 345 bar (5000 psi) with
2 bar (29 psi) check valve
spring
T – 379 bar (5500 psi) with
2 bar (29 psi) check valve
spring
U – 414 bar (6000 psi) with 2
bar (29 psi) check valve
spring
V – 431 bar (6250 psi) with 2
bar (29 psi) check valve
spring
W – 448 bar (6500 psi) with
2 bar (29 psi) check valve
spring
Y – 483 bar (7000 psi) with
2 bar (29 psi) check valve
spring
18, 19
B
C D 0 3 C A B 0 0 0 A
20
21
22
23
24
14,15 P
ress Override Setting
Port A (Pos. 14)
Port B (Pos. 15)
0 – none
1 – 448 bar (6500 psi) adjustable range 379-448 bar
(5500-6500 psi)
N – 103 bar (1500 psi) adjustable range 103-275 bar
(1500-4000 psi)
P – 138 bar (2000 psi) adjustable range 103-275 bar
(1500-4000 psi)
R – 172 bar (2500 psi) adjustable range 103-275 bar
(1500-4000 psi)
S – 207 bar (3000 psi) adjustable range 103-275 bar
(1500-4000 psi)
T – 241 bar (3500 psi) adjustable range 103-275 bar
(1500-4000 psi)
U – 276 bar (4000 psi) adjustable range 241-345 bar
(3500-5000 psi)
V – 310 bar (4500 psi) adjustable range 241-345 bar
(3500-5000 psi)
W – 345 bar (5000 psi) adjustable range 310-414 bar
(4500-6000 psi)
Y – 379 bar (5500 psi) adjustable range 310-414 bar
(4500-6000 psi)
Z – 414 bar (6000 psi) adjustable range 379-448 bar
(5500-6500 psi)
16,17
S
pecial Pump
Features
00 – No special features
01 – Plugged magnetic speed
sensor port
02 – Magnetic speed sensor
12 – Rear pump unit for tandem assembly (no shaft
seal)
13 – Servo piston with externally adjustable stops in
both directions
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
25
26
27
28
29
30
31
18,19 C
ontrol
EC – Electronic proportional
control 12 volt dc without
electronic driver
ED – Electronic proportional
control 24 volt dc without electronic driver
FR – Forward-neutral-reverse
control 12v with 2 2-pin
weatherpack connectors
FS – Forward-neutral-reverse
control 24v with 2 2-pin
weatherpack connectors
HA – Hydraulic remote control
5-15 bar (73-218 psi)
HB – Hydraulic remote control
2-14 bar (29-203 psi)
MA – Manual displacement
control
MB – Manual displacement
control with normally
closed neutral lockout
switch (wide band
neutral)
MC – Manual displacement
control with neutral detent (wide band neutral)
MG – Manual displacement
control with normally
open neutral lockout
switch (wide band neutral)
ML – Manual displacement
control with wide band
neutral
SA – Solenoid control 12 Volt
with non-contact feedback sensor with 4 pin Metri-pack
connector
SB – Solenoid control 24 Volt
with non-contact
feedback sensor with 4
pin Metri-pack
connector
SE – Solenoid control 12 volt
with non-contact feedback
sensor with electrical
connectors per DIN 43650
SG – Solenoid control 24 volt
with non-contact feed
back sensor with
electrical connectors per
DIN 43650
Model Codes
A C L
1, 2 ,3
The following 31-digit coding system has been developed
to identify all of the configuration options for the Series 2
hydrostatic pump. Use this model code to specify a pump
with the desired features. All 31-digits of the code must
be present when ordering. You may want to photocopy
the matrix below to ensure that each number is entered
in the correct box.
0 54 0 2 L 0 B TT WW 12 EC
4, 5, 6
7, 8
20,21,22
Control Orifice
Supply P (Pos. 20)
Lower Servo S1 (Pos. 21)
Upper Servo S2 (Pos. 22)
0 – None
A – 0.53 (.021) diameter
B – 0.71 (.028) diameter
C – 0.91 (.036) diameter
D – 1.12 (.044) diameter
E – 1.22 (.048) diameter
F – 1.32 (.052) diameter
G – 1.45 (.057) diameter
H – 1.65 (.065) diameter
J – 1.85 (.073) diameter
K – 2.06 (.081) diameter
L – 2.39 (.094) diameter
M – 2.59 (.102) diameter
23 Control Special Features
0 – No control special features
1 – No manual control lever
9
10
11
12, 13
14, 15
16, 17
25 Auxiliary Mounting
1 – None (models 064-105)
C – A-pad, dual 2 bolt mount,
no shaft seal, 9 tooth
16/32 pitch spline
D – B-pad, dual 2 bolt mount,
no shaft seal, 13 tooth
16/32 pitch spline
E – B-B-pad, dual 2 bolt
mount, no shaft seal, 15
tooth 16/32 pitch spline
F – C-pad, 4 bolt mount, no
shaft seal, 14 tooth 12/24
pitch spline
H – C-pad, integral to end
cover (typically front pump
of tandem), 4 bolt mount,
no shaft seal, 27 tooth
24/48 pitch spline for units
without charge pump
K – A-pad, dual 2 bolt mount,
no shaft seal, 11 tooth
16/32 pitch spline
18, 19
B
C D 0 3 C A B 0 0 0 A
20
21
22
23
24
26
Charge Pump Options
0 – None
A – Remote filter ports
B – Intergral pressure side
filter with 4 position
mounting pad
F – Remote filter ports. labeled
27
C
harge Pressure Relief
Valve Setting
0 – None
A – 21 bar (305 psi) - standard
B – 23 bar (326 psi)
C – 24 bar (348 psi)
D – 26 bar (370 psi)
E – 27 bar (392 psi)
F – 29 bar (413 psi)
G – 30 bar (435 psi)
H – 23 bar (340 psi)
K – 22 bar (320 psi)
25
26
27
28
29
30
31
28
C
harge Pump Special
Features
0 – No charge pump special
features
29 P
aint and Packaging
0 – Painted primer blue
(standard)
30 Identification On Unit
0 – Standard
31 D
esign Code
A – A
24
Charge Pump
Displacement
0 – None
1 – 13.9 cm3/r (.85 in3/r)
(models 064-089)
2 – 17.4 cm3/r (1.06 in3/r)
(models 064-105)
3 – 21.0 cm3/r (1.28 in3/r)
(models 064-105)
4 – 27.9 cm3/r (1.70 in3/r)
(models 064-105)
5 – 34.7 cm3/r (2.12 in3/r)
(models 089-105)
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
7
Features and Options
Series 2 Pump
High Pressure Relief Valve
Model Code Position 12 & 13
The High Pressure Relief
Valves for ports A and B
activate whenever system
pressure equals the relief
valve setting. The valves
JK
JJKK
See
See
Control
Control
Options
Options
JK
Pressure Override
Model Code Position 14 & 15
are direct acting and
help protect system
components from
excessive pressure spikes.
E F
EE FF
NN
See
Control
Options
N
AA
E F
JK
JJ KK
A
See
See
N
Control
High Pressure Control
Options
Options
High
HighPressure
Pressure Relief Valve
Relief
ReliefValve
Valve A
See
Control
Options
H D
HH DD
H D
BB
P
High Pressure
Relief Valve
B
EE FF
See
Control
Options
See
Control
Options
HH DD
P
Special Pump Features
Model Code 02 in Position 16 & 17
Mating 2 Way Connector
Connector
P/N 1216 2193 (1)
Pin Terminal P/N 1212 4075 (2)
22Way
WayConnector
Connector
Cable
Seal
1204 8086 (2)
ctor
tor
P/N
P/N1216
1216
2193
2193
(1)
(1) P/Nare
All Part
Numbers
minal
minal P/N
P/N1212
1212
4075
4075
(2)
(2)
Mating
2
Way
Connector
Packard
Seal
eal
P/N
P/N1204
1204
8086
8086Electric
(2)
(2) P/N 1216 2193 (1)
Connector
tNumbers
Numbersare
arePin Terminal P/N 1212 4075Magnetic
(2)
Sensor
ddElectric
Electric Cable Seal
P/N 1204 8086Speed
(2)
All Part Numbers
are
Magnetic
Magnetic
Packard Speed
Electric
SpeedSensor
Sensor
Magnetic
Speed Sensor
JK
High Pressure
High
HighPressure
Pressure Relief Valve
Relief
ReliefValve
Valve B
PP
pressures. If the system
pressure reaches a preset
limit, the pump destrokes
and adjusts its displacement to the load. The POR
is available in a number of
pressure settings.
The Pressure Override
Control (POR) is used in
combination with the high
pressure relief valves, to
protect the transmission
when operated for extended periods at overload
NN
Internal Pressure
Override Valve
Internal
Pressure
Pressure
E Internal
F
N
Override
OverrideValve
Valve
A
Internal Pressure
Override
High Valve
Pressure
N
High
HighPressure
PressureCheck Valve
Check
CheckValve
Valve
A
High Pressure
High Pressure
Valve
High
HighPressure
PressureCheck
Check Valve
Check
CheckValve
Valve
B
High Pressure
H D
P
BB
Check Valve
Internal Pressure
PP
Override Valve
Internal
InternalPressure
Pressure
B
Override
OverrideValve
Valve
H D
P
Internal Pressure
Override Valve
AA
E F
Special Pump Features
Model Code 03, 13, or 14 in Position 16 & 17
163,1
[6.42] MAX
143,0
143,0 MAX
163,1
163,1 MAX
[5.63]
[5.63]MAX
[6.42]
[6.42]MAX
Adjustable
Servo163,1
Stop
[6.42] MAX
Adjustable
Adjustable
Servo
ServoStop
Stop
Adjustable
Servo Stop
143,0
[5.63]MAX
143,0
[5.63]MAX
Adjustable
Servo Stop
Adjustable
Adjustable
Servo
ServoStop
Stop
Adjustable
Servo Stop
Side
View
Neutral
Side
Side
Adjust
View
View
Neutral
Neutral
Adjust
Adjust
Charge Pump Options
The Series 2 Hydrostatic
Pump contains an integral
charge pump that may be
provided with various filtration options. A standard
charge pump will use suction filtration where practi8
cal. This arrangement is
detailed in the diagram on
page 29 and followed by
the filter recommendations
on page 31. For applications
where suction filtration is
not practical, the option
below may be selected.
Remote Filter Ports
(Optional)
Model Code A in
Position 26
Remote pressure filter
ports allow you to mount
a pressure side filter in
a more easily accessible
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
Neutral
Side
View
location.
The filter ports
Adjust
accept 7/8-14 UNF-2B SAE
O-ring fittings. The filter
and lines must be able to
withstand pressures up to
70 bar (1000 psi).
1
Control Options –
Manual Control
The wide variety of available controls on the Eaton®
Heavy Duty Series 2 Pump offers vehicle designers the
control necessary for optimal vehicle performance. Many
of these controls are combined as single control options;
please refer to the model code for the specific option configuration. For combinations other than shown, contact an
Eaton representative.
Model Code Positions 18 & 19
Standard Manual Displacement Control (MA)
The standard manual displacement control, the
most common control
option, typically connects
Manual Control with Neutral Lockout (MB)
directly with mechanical
linkages or cables.
T P
T P
T P
Swashplate S 2
Feedback
Swashplate S 2
Feedback
S1 P
S
neutral. The lock-out feature is commonly used to
prevent starting the prime
mover or activating auxiliary functions. The electrical switch is available as
T or
P normally
normally open
closed.
The neutral lock-out feature
is an electrical switch that
is closed or open when the
transmission is in neutral.
This switch can be used
to prevent the activation
of certain functions that
require the pump to be in
T P
T P
Swashplate S2 S1
Feedback
(Normally Closed Switch Shown)
S1
Swashplate S S
S 1 T P Feedback 2 1
Swashplate S
S
2
1
Swashplate S2 S1 Feedback
T P
Feedback
(Normally Closed Switch Shown)
(Normally Closed Switch Shown)
2
Neutral Lockout Switch
S2
S 1 PSwashplate
S 2
P
S
S1 P
Top View
S1
Swashplate S2 S1
Feedback
Neutral Lockout Switch
(Normally
Closed Switch Shown)
Manual Displacement Control with Wide Band
Neutral Lockout Switch
Neutral Detent (ML)
Feedback
2
S
A
Top View
This control is the same
as the above with an
increased neutral band.
A
A
2
T P
A
T P
Swashplate
Manual Control with Neutral Detent
(MC) S2 S1
Feedback
A
T P
Side View
Top View
S1 P
control linkages or cables,
or in other situations where
there is a great deal of
S1 operaS2 the
Swashplate
space
between
Feedback
tor station and the pump.
Swashplate S2 S1 T P
Feedback
A
Top View
Neutral Lockout Switch
The neutral detent feature
provides a more positive
feel when finding neutral.
This option is ideal for
transmissions with long
A
S1 P
S2
Section A A
A
Side View
Side View
S1 P
S2
S2
Section A A
Mating Connector for MB
Section A A
Connector P/N 1201 5792 (1)
Side View
Terminal
P/N 1208 9040 (2)
Cable Seal P/N 1201 5323 (2)
Swashplate S2 S1
Feedback
S1 P
S2
All Part Numbers are Packard
Electric
Section A A
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
9
Control Options –
Manual Control
Model Code Positions 18 & 19
Manual Controls – Dimensions
Displacement 64 cm3/r (3.9
75 cm3/r (4.6
89 cm3/r (5.4
105 cm3/r (6.4
in3/r)
in3/r)
in3/r)
in3/r)
Dim. A
Control Spool Dim. B
18,5 (.73)
18,5 (.73)
107,3 (1.17)
107,3 (1.17)
Standard Wide Band 2° 30' ±1° 45'
4° 15' ±1° 45'
74,6
[2.94]
55,5
[2.19]
40,9
[1.61]
11 ° 45' ±3°0'
Overstroke
Flow From Port B
With Input Shaft
Rotating CW
+0,18
6,73 -0,05
2X
[+.007]
[.265] [-.002]
27 °15' ±2°0' Neutral Zone
(Zero Flow)
Dim. B
Radial Position of Control Handle To Shaft
Is changed in 7˚ 30' Increments By
Alternately Rotating.
1,1 N·m [10 lbf·in] Torque Required
For Full Control Handle Travel.
Total Applied Torque Not To Exceed
Neutral Zone
16,9 N·m [150 lbf·in].
(Zero Flow)
Dim. B
27 °15' ±2°0 '
9,5
[.38]
Pump Mounting
Flange
Dim. A
Flow From Port A
With Input Shaft
Rotating CW
25,4 ±0,5
[1.00 ± .02]
11 ° 45' ±3°0'
Overstroke
50,8 ± 0,5
[2.00 ± .02]
Control Handle Detail
10
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
Pump
Mounting
Surface
Control Options –
Hydraulic Remote Control
Model Code HA in Position 18, 19
The hydraulic remote pump
control makes it possible
to control pump flow by
changing pump displacement via a remote pilot
pressure signal. The angle
of the swashplate, that
determines pump displacement, is proportional to the
pilot pressure. Typical pressure requirements are 5-15
bar (72.5 -217.5 psi) with a
swashplate angle from 0°
to 18°.
The direction of flow, and
therefore the direction of
the vehicle, is reversed
by applying the control
pressure to the opposite
inlet port of the hydraulic
remote pump control.
The hydraulic remote pump
control is a three position,
four-way closed center
(spring centered) hydraulically activated servo
control. This control, like
the manual displacement
control uses the feedback
linkage connected directly
to the swashplate.
Pilot Pressure Port 1
Pilot Pressure Port 2
The control spool is activated to position the
swashplate by regulating
the remote pilot pressure
to the control piston. There
are various manufacturers
of command stations that
can be used to supply this
remote pilot pressure.
•W
here electronic controls
cannot be used.
The Eaton hydraulic remote
pump control is compatible
with:
•A
ll Eaton Series 2
Variable Pumps (Models
64-105)
•O
ther Eaton control
options such as the
destroke control, inching control, and pressure
override
•M
ost commercially available hydraulic command
stations
Swashplate
Feedback
P T
S1
S2
Pilot Pressure Port 1
Pilot Pressure Port 2
Control Spool
Feedback Link
Section A-A
The hydraulic remote pump
control is readily adaptable
Flow from Port “B”
in the following applicaCW Input Rotation
tions:
Pilot Pressure Port 1
Hydraulic
Remote
• Where remote transmis-Pilot Pressure
Ports
are 2 x Control
sion control is needed
9/16" (.5625") - 18 UNC-2B
A
•W
here control cables or
linkages are not feasible
Swashplate
Feedback
P T
S1
S2
S1
A
SAE O-ring ports
Pilot Pressure Port 2
Flow from Port “A”
CW Input Rotation
P
Control Spool
SectionFeedback
A-A
Link
Control Links
S2
Feedback Link
Hydraulic
Flow from Port
“B” Remote Control
CW Input Rotation
Pilot Pressure Port 1
Pilot Pressure Ports are 2 x
9/16" (.5625") - 18 UNC-2B
SAE O-ring ports
Pilot Pressure Port 2
S1
A
A
Flow from Port “A”
CW Input Rotation
P
S2
Feedback Link
Control Links
Hydraulic Remote Control
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
11
-
Control Options –
Electronic Proportional
Displacement Control
The Electronic Proportional (EP) displacement control is
ideal for applications requiring electronic pump displacement control. The EP displacement control has been
designed to withstand the rigors of off-highway equipment environmental conditions.
Solenoid 2
Model Code EC & ED Position 18,19
Solenoid 2
1
A
1
Control
Servo Port S1
Pressure
D
2
Servo Port S2
Servo Port S2
Solenoid Valve Schematic
Solenoid Valve Schematic
•R
eturn to neutral for loss
of power, or loss of command input signal
Pump Displacement vs. Coil Current
Pump Displacement vs. Coil Current
100%
100%
•M
echanical feedback of
swashplate position for
closed loop control
Neutral Adjustment
•E
xternal neutral adjustment
• Manual override capability
Servo Port S1
D
2
Optional Orifice
C
C
•A
utomotive style environmentally sealed Metri-Pack
connectors
B
B
EP Control Features
• Ease of installation
A Solenoid 1
-B
17.0
[.67]
-B
-A
-A
A Current (A) B
Centerline of
Drive Shaft
A Current (A) B
235.5
[9.27]
100%
100%
Matting 4 Way Connector
Packard Electric**
Voltage
Voltage
Packard 4 Pin, Weatherpack
2
P/N 1218 6568 Connector,
1
12V
24V
Coil Current (A)
A
B
0.5
1.25
0.25
0.625
12V
24V
Coil Current (A)
A
B
0.5
1.25
0.25
0.625
Qty 1
P/N 1204 8074 PIN Terminal,
113.8
[4.48]
Qty 4
P/N 1204 8086 Cable Seal,
2X Manual Override, Push to
Proportional ValveActivate Manual Override
Specification
EC
Qty 4
P/N 1204 7948 TPA,
47.8
[1.88]
Qty 1
Pin
Color
Signal
A
B
C
D
Yellow
White
Orange
Black
Coil 1 PWM
Coil 1 Return
Coil 2 PWM
Coil 2 Return
54.4
[2.14]
ED
Note:
Coils have no internal
Diodes. A-B Polarity and
C-D Typical
Polarity Does Not
E lectronic
Controller
affect
operation
Voltage
12 VDC
24 VDC
Modulation frequency
Resistance
5.2 Ohms
20.8 Ohms flange for optimal perforInductance
7.0 mH
27.7 mH
manceContact
is 75-200
HzTCA,
Eaton for
Current
1500 mA
750 mA
Maestro, and EFX
Rotation
Threshold Current Input Shaft
200-600
mA
100-300 mA
controller available from
CCW
Eaton; orCW
customer
PWM Frequency*
70-200 Hz
70-200
Hz
1
2 supplied1controller.2
Dither Frequency Solenoid
75Energized
Hz
75 Hz
In
In
Out
Dither Amplitude Port A Flow
250 mA
125 Out
mA
Port
B
Flow
In
Out
Out
In
Ambient Temperature
-65°F to 140°F (-54°C to 60°C)
Coil Impedance
10 mH
42 mH
* 100 Hz recommended when PWM driver does not have built-in dither capabilities
** Contact Eaton
for other connector styles
Proportional
Valve
Specification
EC
Pin
Color
Signal
A
B
C
D
Yellow
White
Orange
Black
Coil 1 PWM
Coil 1 Return
Coil 2 PWM
Coil 2 Return
Voltage
Resistance
Inductance
Current
Threshold Current
PWM Frequency*
Dither Frequency
Dither Amplitude
Ambient Temperature
Coil Impedance
ED
12 VDC
24 VDC
5.2 Ohms
20.8 Ohms
7.0 mH
27.7 mH
1500 mA
750 mA
200-600 mA
100-300 mA
70-200 Hz
70-200 Hz
75 Hz
75 Hz
250 mA
125 mA
-65°F to 140°F (-54°C to 60°C)
10 mH
42 mH
Typical
E lectronic Controller
Contact Eaton for TCA,
Maestro, and EFX
controller available from
Eaton; or customer
supplied controller.
* 100 Hz recommended when PWM driver does not have built-in dither capabilities
** Contact Eaton for other connector styles
PWM configuration: Closed loop current control (12/24 volts DC voltage cannot be applied to
coil without exceeding continuous rated current)
12
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
Displacement
Control
93,7 (3 .69)36,6 (1 .44)
45,0 (1 .77)
39, 46 54, 64
74,9 (2 .95)
washplate Electronic
76
110,2 (4 .34)45,0 (1 .77)
45,2 (1 .78)
54,
64
93,7
(3 .69)
shplate
Electronic
r Feedback
76
110,2 (4 .34)
45,2 (1 .78)
Control
Options – Solenoid
eedback
Controller Dimensions
de SC & SD Position
15,16Options – Pump
Control
Control
with Swashplate
C & SD Position
15,16
Solenoid
Energized
1 39, 46
2
1
2
Electric
Displacement
Control
74,9 (2 .95)
Feedback
Sensor Solenoid
PortEnergized
A Flow
Out
In
In
Out
1
2
1
2
54, 64
93,7 (3 .69)
with
Swashplate
Electronic
Port
B Flow
In76 In
Out In
Out 110,2
In
Port
A
Flow
Out
Out
(4 .34)
Model Code SE in Position 18, 19
In
Out
Out
In
Sensor Feedback Port B Flow
Solenoid 1
Solenoid 2
Input Shaft Rotation
Input Shaft Rotation
A
254,71 (10.028)
231,85
(9.128)
254,71
(10.028)
231,85
Unit (9.128)
Centerline
Unit Centerline
CCW
CCW
Displacement in3/r
CW
CW
a
B
36,6 (1 .44)
45,0 (1 .77)
45,2 (1 .78)
69.7
[2.74]
40.9
[1.61]
Solenoid 1
Solenoid 2
Solenoid 1
Solenoid 2
Optional
Input Shaft
CCW
CW
Solenoid
1
Solenoid
2 Rotation
Pin B
Optional
Orifice
Optional
Solenoid
Energized
1
2
1
2
Pin A
Orifice
Servo
Optional
Orifice
Servo
Port
A
Flow
Out
In
In
Out
Port S1
Orifice
Servo
Port S1
Port
B
Flow
In
Out
Out
In
Servo
Centerline Of
Port S1
254,71 (10.028)
Control
2
Drive Shaft
Solenoid
Solenoid 2
Port
S1 1
Control
Pressure
231,85
(9.128)
254,71
(10.028)
Servo
Control
2
Solenoid
Solenoid 2
Solenoid 1 Servo
Solenoid 2
Pressure1
Control
Port
S2
254,71
(10.028)
Optional
A
Pressure
Unit (9.128)
Centerline
231,85
Solenoid 1
Solenoid 2
Servo
Port S2
Mounting
Pressure
Controller Dimensions
Servo
Orifice
231,85 (9.128)
Port S2
Optional
t Centerline
Optional
Flange
Servo
Port S2 Non-Contact Swash
Optional
aUnit Centerline
B
Displacement in3/r
Orifice
Orifice
Plate
Feedback
Sensor
Port
S1
1
Servo
Orifice
Servo
2
39, 46
74,9 (2 .95)
36,6 (1 .44)
Servo
1 Port S1
Port S1
Control
54, 642
93,7Solenoid
(3 .69) 2 45,0 (1 .77)
Port S1
99.8
Solenoid
1
Pressure
Servo
B
Control
254,71
(10.028)
[3.93]
%
Servo
Flow
vs
Valve
Coil
Current
76 A
110,2
(4 .34)
45,2
(1 .78)Piston
Control
2
Solenoid
1
Solenoid
2
Mounting
Control
Pressure
ServoPort%S2
Pressure
231,85 (9.128)
175,62 (6.914)
Servo Piston Flow vs Valve
Coil Current
Servo P S1/S2
Flange
S1/S2
T
Pressure
2
1
Port S2
Servo
Optional
100%
Port
S2
Optional
Unit
Centerline
175,62198,48
(6.914)
1
(7.814)
P S2
S1/S2
Port
Orifice S1/S2 T
Orifice
100% 75%
Input
Shaft
CCW
CW
Servo(7.814)
1 Rotation
198,48
Servo
Dead
Dead
Port S1 Energized
Solenoid
1
2
1
Band
Band
75%
1 2Port S1
B
113.0
Dead
Dead
250%
50.0
Port A Flow
Out
In Band In
Out
[4.45]
Band Control
175,62 (6.914)
[1.97]
50% 25%
Control In
Port B Flow
In
Out
Out
175,62198,48
(6.914)(7.814)
Pressure Servo % Servo Piston Flow vs ValvePressure
Coil Current
25%
Servo
0
Port S2
175,62 (6.914)
Solenoid 1
Solenoid
2
198,48 (7.814) Port S2
0
20%
40%
60%
80%T
100%
S1/S2
P S1/S2
0 2
028)
Solenoid 1
Solenoid
100%
1
20%
40%
60%
80%
100%
198,480(7.814)
Optional
75%
Optional
Orifice
Dead
Dead
Orifice
Servo
Band
Band
50% Mating Connector for Valve
Servo
Port
S1
Sensor
Connector
DINConnector
43650, Form
(IP65)
175,62 (6.914)
Port S1
Mating
for A
Valve
**
25%
Sensor
Connector
Control
2
Pin
Wire
(DeutschForm
connector
available
Solenoid
1 Color
SolenoidFunction
2
DIN
43650,
A
(IP65)
Control
198,48 (7.814)
Pressure
0 upon request)
Servo
Pin A Wire
Color
Pressure
(Deutsch
connector available
Black Function
Return
Servo
Port S2
Optional
40%
60%
80%
100%
upon0request) 20%
Model Code SC & SD Position 15,16
Pin C
Center
Port
S2
B Black
Blue
A
Servo
C Blue Red
B
59,44 1 Port S1
C
Red
(Signal)
ReturnV OutOrifice
5 VDC
V Out +(Signal)
+ 5 VDC
Control 29,21 (1.150)
Sensor
Pressure Connector
Servo % Servo Piston Flow vs Valve
Coil
Current
29,21
(1.150)
Port S2
Pin
Wire Color
Function
S1/S2 T
100%
75%
Dead
Band
50%
25%
59,44
(2.340)
P S1/S2
A
Black
B
Blue
29,21 (1.150)
C
Red
29,21 (1.150)
Center
2.340)
Center
Center
trol
c
0
0
20%
40%
Mating Connector for
Sensor
(IP66) for
Mating
Connector
Mating Connector for Valve
26,92
(1.060)
Packard
Sensor (IP66) 3 Pin WeatherpackDIN 43650, Form A (IP65)
26,92P/N
(1.060)
Connector
Packard
3 12015793,
Pin Weatherpack
(Deutsch connector available
Qty 1
P/N 12015793,
Connector
upon request)
Qty 1P/N 12089188, PIN Terminal,
Return
143,51
(5.650)
V Out
(Signal)
26,92 (1.060)
Dead
Qty 3
P/N 12089188,
PIN Terminal,
+ 5 VDC
143,51
(5.650)
Band
Mating Connector for
26,92 (1.060) Qty 3
P/N 12015323, Cable Seal,
Sensor (IP66)
143,51 (5.650)
Qty 3
P/N
12015323,
Cable Seal,
29,21
(1.150)
26,92 (1.060)
Packard
3 Pin Weatherpack
143,51 (5.650)
Qty 3
P/N 12015793, Connector
60%
80%
100%
Qty 1
** Contact Eaton for other
connector styles
Valve
typical
P/N
Specifications
SC
SD
electronic
Controller
Valve
typical
143,51 (5.650)
29,21 (1.150)
26,92 (1.060) Qty
Voltage
12
VDC
24
VDC
Specifications
SC
SD
electronic
Controller
Mating
Connector for Valve
59,44
12089188, PIN Terminal,
Sensor electrical
Data
(2.340)
3
r
electrical
Data
e
5±0.50Input
VDC Shaft Rotation Contact Eaton for
CCW
CW
Resistance
4.0
Ohms
16.0
Ohms
Voltage
12
VDC
24
VDC
TCA,
Maestro,
DIN
43650,
Form
A
(IP65)
t
P/N 12015323, Cable Seal,
5±0.5010mA
VDC
Contact
Eaton
and
EFX for
controllerQty 3
1
2 Inductance
1 4.0 Ohms
(5.650)
12.32 mH16.0143,51
49.4 mH
Resistance
Ohms
Function
(Deutsch
connector available
TCA, Maestro,
CW ShaftEnergized
rotation increases output
10mA 10°/V,Solenoid
available
from
Eaton;
request)
Port A Flow
Out upon
In Current In 12.3 mH
Out
1750
mA49.4 mH
875 mA and EFX
controller supplied
Inductance
Return
or customer
0.5V;
+20° atincreases
4.5V; output
10°/V,-20°
CW at
Shaft
rotation
available
from Eaton;
Port
B
Flow
In
Out
Out
In
Ambient
Temp
-65°F
to
140°F
controller.
Current
1750 mA
875 mA
0°
(pump
neutral)
at
2.5V
V Out-20°
(Signal)
or customer supplied
at 0.5V; +20° at 4.5V;
(-54°C
to 60°C)
Ambient
Temp
-65°F
to
140°F
controller.
Valve
typical
rror*
±3%
+ 5 VDC
0° (pump
neutral) at 2.5V
Mating Connector for
(-54°C to 60°C) Specifications
SE
SG
SC
SD
electronic Controller
Sensor
s thermal
and sensitivity
drift electrical Data
±3% linearity,Swashplate
Sensor (IP66)
Voltage
12
VDC
24
VDC
29,21
(1.150)
Supply
Voltage
5±0.50
VDC
26,92
(1.060)
Packard 3 Pin Weatherpack
mal linearity, and sensitivity drift
Contact
Eatonfor
for
Contact Eaton
Resistance
4.0 Ohms
16.0 Ohms
TCA,
Maestro, or
Supply Current
10mA
P/N 12015793, Connector
Fx
controllers
eaton Heavy Duty Hydrostatic Transmissions Catalog E-TRHD-MC001-E2 July 2011
and EFX controller
Inductance
12.3 mH
49.4 mH
Qty 1rotation increases output
customer
supplier
Sensor Gain
10°/ V, CW Shaft
available from
Eaton;
aton Heavy Duty Hydrostatic Transmissions Catalog E-TRHD-MC001-E2 July 2011
Current
1750 mA
875 mA
controller.
or customer supplied
Angle Sweep
-20° at 0.5V;P/N
+20°12089188,
at 4.5V; PIN Terminal,
143,51
(5.650)
Ambient Temp
-65°F to 140°F
controller.
29,21 (1.150)
0° (pump
26,92
(1.060)neutral)
Qty 3at 2.5V
(-54°C to 60°C)
Max Output Error*
±3%
P/N 12015323, Cable Seal,
143,51includes
(5.650)thermal linearity, and Qty
*Error
sensitivity
drift
3
20
Valve
Specifications
EATON
Series
2 Variable Displacement
eaton Heavy Duty Hydrostatic Transmissions
Catalog
E-TRHD-MC001-E2
July 2011Piston Pump E-PUPI-MC004-E2 December 2012
typical
SC
SD
electronic Controller
13
Control Options –
Forward - Neutral - Reverse Control
Model Code FR, FS in Position 18, 19
Servo Ports
S1 & S2
Servo Ports
S1 & S2
Positive Load:
12V Red
SC 1
2
Positive Load:
12V Red
SC 1
2
4
3
SC 2
Ground Load:
Black
1
Control
Pressure
4
3
SC 2
Ground Load:
Black
1
Control
Pressure
Coil Schematic
Control Special Features –
Destroke Valve
Model Code 3 in Position 23
The destroke solenoid
valve, when activated,
causes the pump to
destroke and go to zero
T
P
displacement. This valve
may be used as a safety
device. Typically, the valve
is activated by a seat
switch detecting operator
presence or by a remote
emergency stop switch on
the operator’s console. It
is available in 12 or 24 Vdc
and either normally open
Swashplate
or normally
closed configuFeedback
rations.
S2
14
S1
T
P
Swashplate
Feedback
S2
S1
Destroke
Valve
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
Destroke
Valve
Coil Schematic
Pump Dimensions –
Opposite Side Porting
Model Code 64, 75
64 cm3/r (3.9 in3/r)
75 cm3/r (4.6 in3/r)
99,0
[3.90]
R 1,19
[.047]
32°
Ø
253,3
[9.97]
147,1
[5.80]
A*
299,0
[11.77]
Centerline of
Charge Pump
Inlet Port (H)
Port (E)
147,57
147,57
[5.81]
+0,00
127,00 -0,08
Cg
5.000 +.000
-.003
124,05
Ø [4.884]
See Auxiliary
Mounting Options
(SAE-J744 C-mount)
Mounting flange
With groove for O-ring
15,7
[.62]
12,45±,25
[.490±.010]
System
Pressure
Port (B)
Port (F)
57,6
[2.27]
90.0
[3.54]
235,5
[9.27]
Controller
240,6
[9.47]
Charge Pump
Displacement Port (J)
13,9
17,4
21.0
27,9
cm3/r (.85
cm3/r (1.06
cm3/r (1.28
cm3/r (1.70
in3/r)
in3/r)
in3/r)
in3/r)
*A
Dimension
300,3 (11.82)
303,7 (11.96)
307,2 (12.10)
314,1 (12.37)
Port (A)
Port (K)
176,1
[6.94]
101,1
[4.00]
See shaft
90,1 Options
[3.55]
147,57
[5.81]
Port (N)
Cg
7,4
[.29]
25.4
[1.00]
97,7
[3.85]
Port (P)
Port (F)
2x 99,0
[3.90]
Charge Relief
235,5 Nameplate
[9.27]
Port (D)
Port (B)
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
15
Pump Dimensions –
Opposite Side Porting
Model Code 64, 75
64 cm3/r (3.9 in3/r)
75 cm3/r (4.6 in3/r)
Optional Magnetic
Speed Sensor
Mating 2 Way Connector
Connector
p/n 1216 2163 (1)
Pin Terminal p/n 121 4075 (2)
Cable Seal
p/n 1204 8086 (2)
All part numbers are Packard Electric
120,6
123,2
[4.75]
[4.85]
104,1
101,6
Port
[4.10]
[4.01]
(E)
Port (A)
Port (N)
A
4x 57,3
[2.25]
52,8
[2.08]
S
105,7
[4.16] 58,9
[2.32]
45,3
[1.78] 4x 82,6
[3.25]
52,8
[2.08]
16
Port (H)
Port (P)
B
Port (F)
4x Ø 0,15
[59]
Do not remove plug
Can not be used as a
Case drain port
99,6
[3.92]
54,6
[2.15]
Port (B)
4x 52,8
[2.08]
92,8
2x [3.66]
90,7
[3.57]
90,9
[3.58]
98,6
[3.88]
Weight
Port Description S.A.E. O-ring Port Size
58 kg (128 lbs.)
A
B
D
E
F
H
P
N
J
K
1" per Code 61 per J518
1" per Code 61 per J518
7/8-14 UN-2B
1-1/16-12 UN-2B
1-1/16-12 UN-2B
1-5/16-12 UN-2B
9/16-18 UNF-2B
9/16-18 UNF-2B
7/16-20 UNF-2B
7/16-20 UNF-2B
Main Port Main Port Charge Gauge Port Case Drain Port Case Drain Port Charge Pressure Inlet Port Gauge Port,System Port B Gauge Port,System Port A Gauge Port Servo 1 Gauge Port Servo 2 EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
Pump Dimensions –
Same Side Porting
Model Code 64, 75
64 cm3/r (3.9 in3/r)
75 cm3/r (4.6 in3/r)
See Auxiliary
Mounting Options
(SAE-J744 C-mount)
Mounting Flange
with Groove for O-ring
15,7
[.62]
12,45 ±,25
[.490± .010]
Ø124,05
[4.884]
4x 57,3
[2.25]
+0,00
127,00 -0,08
Ø
+.000
5.000-.003
32°
1,19
R[.047]
299,0
[11.77]
Port (F)
52,8
[2.08]
123,2
[4.85]
104,1
[4.10]
90,9
[3.58]
57,3
4x
[2.25]
101,6
[4.01]
98,6
[3.88]
120,6
[4.75]
A*
52,8
[2.08]
Optional Speed Sensor
Mating 2 way connector packard electric
P/N 1216 2193 Connector (1)
P/N 1212 4075 Pin Terminal (2)
P/N 1204 8086 Cable Seal (2)
Port (A)
See Port Options
Port (E)
Charge Pump
Displacement Port (H)
Port (B)
240,6
[9.47]
90,0
57,6 [3.54]
[2.27]
246,9
[9.72]
15,0
4x Ø [.59]
4x 82,6
[3.25]
45,3
[1.78]
Port (E)
13,9
17,4
21,0
27,9
99,0
147,1 [3.90]
[5.80]
238,8
2x [9.40]
cm3/r (.85
cm3/r(1.06
cm3/r(1.28
cm3/r(1.70
in3/r)
in3/r)
in3/r)
in3/r)
*A
Dimension
300,3 (11.82)
303,7 (11.96)
307,2 (12.10)
314,1 (12.37)
235,5
[9.27]
Port (K)
Port (J)
Port (N)
Port (D)
See Shaft
Options
101,6
[4.00]
90,1
[3.55]
58,9
[2.32]
S
7,4
[.29]
97,7
[3.85]
Port (F)
110,5
[4.35]
99,0
2x [3.90]
235,5
[9.27]
Nameplate
Port (P)
54,6
[2.15]
2x 92,8
[3.66]
126,7
[4.99]
Port Description S.A.E. O-ring Port Size
A
B
D
E
F
H
P
N
J
K
1" per Code 61 per J518
1" per Code 61 per J518
7/8-14 UN-2B
1-1/16-12 UN-2B
1-1/16-12 UN-2B
1-5/16-12 UN-2B
9/16-18 UNF-2B
9/16-18 UNF-2B
7/16-20 UNF-2B
7/16-20 UNF-2B
Main Port Main Port Charge Gauge Port Case Drain Port Case Drain Port Charge Pressure Inlet Port Gauge Port,System Port B Gauge Port,System Port A Gauge Port Servo 1 Gauge Port Servo 2 EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
17
Pump Dimensions –
Opposite Side Porting
Model Code 89, 105
89 cm3/r (5.4 in3/r)
105 cm3/r (6.4 in3/r)
A*
333,1
[13.11]
280,5
[11.04]
154,0
[6.06]
Centerline of
Charge Pump
Inlet Port (H)
R 1,19
[.047]
32˚
Ø
127,00+0,00
-0,08
5.000 +.000
-.003
182,9
147,57
[5.81]
[7.20]
See Auxiliary
Mounting Options
Cg
Ø 124,05
[4.884]
2 x (A) and (B)
System
Pressure
Ports
(SAE-J744 C-mount)
Mounting flange
With groove for O-ring
12,45±0,25
[.490±.010]
15,7
[.62]
101,0
[3.98]
68,8
[2.71]
260,9
[10.27]
2x 265,2
[10.44]
Port (J)
Controller
*A
Dimension
13,9 cm3/r (.85 in3/r) 17,4 cm3/r(1.06 in3/r) 21.0 cm3/r(1.28 in3/r) 27,9 cm3/r(1.70 in3/r) 34,7 cm3/r(2.12 in3/r) 337,1(13.27)
340,5(13.40)
344,0(13.55)
350,9(13.81)
357,7(14.08)
Port (A)
Port (K)
189,1
[7.48]
Charge Pump
Displacement Port (D)
103,5
[4.08]
See shaft
Options
Port (N)
182,9
147,57
[5.81]
[7.20]
Cg
3,8
[.15]
106.68
27,9
[7.20]
[1.10]
107,3
[4.22]
Port (P)
Port (F)
140,0
[5.51]
18
Nameplate
258,4
[10.17]
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
Port (B)
Pump Dimensions –
Opposite Side Porting
Model Code 89, 105
89 cm3/r (5.4 in3/r)
105 cm3/r (6.4 in3/r)
Optional Speed Sensor
Mating 2 Way Connector Packard Electric
P/N 1216 2193 Connector (1)
P/N 1212 4075 Pin Terminal (2)
P/N 1204 8086 Cable Seal (2)
138,9
[5.47]
109,8
[4.32]
119,6
[4.71]
140,5
[5.53]
Port (A)
Port (N)
15,0
4x [.59]
A
127,3
[5.01]
4x 57,3
[2.25]
62,7
[2.47]
S
44,3
[1.75]
61,0
4x 82,6 [2.40]
[3.25]
31,8
[1.25]
62,7
114,6 [2.47]
[4.51]
Port (H)
Port (F)
Port (E)
Do not remove
Plug cannot be
Used as a case
Drain port
B
101,9
[4.01]
4x 57,3
[2.25]
Port (P)
101,9
[4.01]
Port (B)
2x 105,7
[4.16]
104,4
[4.08]
Weight
Port Description S.A.E. O-ring Port Size
81 kg (178 lbs.)
A
B
D
E
F
H
P
N
J
K
1" per Code 61 per J518
1" per Code 61 per J518
7/8-14 UN-2B
1-1/16-12 UN-2B
1-1/16-12 UN-2B
1-5/16-12 UN-2B
9/16-18 UNF-2B
9/16-18 UNF-2B
7/16-20 UNF-2B
7/16-20 UNF-2B
Main Port Main Port Charge Gauge Port Case Drain Port Case Drain Port Charge Pressure Inlet Port Gauge Port, System Port B Gauge Port, System Port A Gauge Port Servo 1 Gauge Port Servo 2 EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
19
Pump Dimensions –
Same Side Porting
Model Code 89, 105
89 cm3/r (5.4 in3/r)
105 cm3/r (6.4 in3/r)
See Auxiliary
Mounting Options
(Sae-j744 c-mount)
Mounting Flange
with Groove for O-ring
15,7
[.62]
12,45 ± 0,25
[.490 ± .010]
2x 114,6
[4.51]
Centerline of
Charge Pump
Inlet Port
140,5
[5.53]
101,9
[4.01]
119,6
124,05
Ø [4.884]
[4.71]
127,00 +0,00
-0,08
Ø
+.000
5.000 -.003
141,6
[5.58]
32°
109,8
[4.32]
R 1,19
[.047]
154,0
[6.06]
333,1
[13.11]
A*
Port (F)
Do Not Remove Plug Can Not
be Used as a Case Drain Port
57,3
4x [2.25]
31,8
[1.25]
4x 57,3
[2.25]
101,9
[4.01]
44,3
[1.75]
Port (A)
See Port Options 280,5
[11.04]
61,0
4x Ø 15,0
[.59]
[2.40]
4x 82,6
[3.25]
Port (E)
Optional Speed Sensor
Mating 2 Way Connector Packard Electric
P/N 1216 2193 Connector (1)
P/N 1212 4075 Pin Terminal (2)
P/N 1204 8086 Cable Seal (2)
66,68
[2.625]
66.68
[2.625]
Port (E)
153,7
[6.05]
Port (B)
271,3
[10.68]
Port (K)
101,0
[3.98]
68,8
[2.71]
247,2
[9.73]
267,8
[10.54]
Charge Pump
Displacement *A
Dimension
13,9 cm3/r (.85 in3/r) 17,4 cm3/r(1.06 in3/r) 21.0 cm3/r(1.28 in3/r) 27,9 cm3/r(1.70 in3/r) 34,7 cm3/r(2.12 in3/r) 337,1 (13.27)
340,5 (13.40)
344,0 (13.55)
350,9 (13.81)
357,7 (14.08)
258,4
[10.17]
Port (J)
See Shaft
Options
Port (N)
Port (M)
103,5
[4.08]
15,6
[.61]
115,1
[4.53]
10,7
[.42]
107,3
[4.22]
Port (F)
140,0
[5.51]
20
62,7
[2.47]
62,7
[2.47]
118,1
[4.65]
Port (W)
Nameplate
258,4
[10.17]
Port (P)
2x 105,7
[4.16]
125,7
[4.95]
Port (H)
Port Description S.A.E. O-ring Port Size
A
B
D
E
F
H
P
N
J
K
M
W
1" per Code 61 per J518
1" per Code 61 per J518
7/8-14 UN-2B
1-1/16-12 UN-2B
1-1/16-12 UN-2B
1-5/16-12 UN-2B
9/16-18 UNF-2B
9/16-18 UNF-2B
7/16-20 UNF-2B
7/16-20 UNF-2B
7/8-14 UN-2B
7/8-14 UN-2B
Main Port Main Port Charge Gauge Port Case Drain Port Case Drain Port Charge Pressure Inlet Port Gauge Port, System Port B Gauge Port, System Port A Gauge Port Servo 1 Gauge Port Servo 2 Remote Filter Port, Outlet Remote Filter Port, Intlet EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
55,47±0,89
[2.184±.035]
47,63±0,51
[1.875±.020]
55,47±0,89
[2.184±.035]
47,63±0,51
Input
Shaft Options
[1.875±.020]
+0,03
25,40 ±0,60 Long 25,40 ±0,60
+0,03
9,52 -0,00 Square key
Square
9,52x -0,00
[1.000±
.025] key x [1.000±.025] Long
+.001
+.001
.375
.375
[-.000]
Ø 3,96 Thru
[-.000]
Ø 3,96 Thru
[.156]
[.156]
Model Code Position 7, 8
3/8-24 unf-2b
3/8-24 unf-2b
Depth 19,05 [.750] min
Depth 19,05 [.750] min
Model Code 63,50
02 - 23 Tooth 63,50 ± 0,03
Ø[2.500 ±± 0,03
55,47±0,89
Torque:
1
469
N·m.001]
(13.000Ø[2.500
lbf·in)± .001]
[2.184±.035]
37,62± 0,13
37,62± 0,13
Ø[1.481±
Ø
.005]
[1.481± .005]
47,63±0,51
55,47±0,89
[1.875±.020]
[2.184±.035]
Model Code
03 - 0,03
1.50 Tapered
Ø 63,50±
Ø 63,50±0,03
[2.500±.001]
[2.500±.001]
Torque:
836 N·m (7.400
lbf·in)
6,35±0,05
6,35±0,05
[.250±.002]
47,63±0,51
Involute[1.875±.020]
spline
Involute
spline
3/8-24
unf-2b
fillet root side fit fillet root
side fit
Depth
23 tooth 16/32 pitch23 tooth 16/3219,05
pitch[.750] min
will fit ANSI B92.1 1970
will fit ANSI
B92.1
1970
3/8-24
unf-2b
class 5 mating splines
class 5 mating
splines
63,50
± 0,03
Depth
19,05
[.750] min
Ø[2.500 ± .001]
37,62± 0,13
Ø[1.481±
.005] 63,50 ± 0,03
Ø[2.500 ± .001]
37,62±
0,13
Ø[1.481± .005]
Involute spline
fillet root side fit
23 tooth 16/32 pitch
Involute
will
fit ANSIspline
B92.1 1970
fillet5 root
sidesplines
fit
class
mating
23 tooth 16/32 pitch
will fit ANSI B92.1 1970
class 5 mating splines
Model Code 13 - 13 Tooth
Torque: 1921 N·m (17.000 lbf·in)
55,47± 0,89
[2.184±.035]
47,63 ± 0,51
[1.875 ±.020]
55,47± 0,89
[2.184±.035]
47,63 ± 0,51
[1.875 ±.020]
63,50 ± 0,03
63,50 ± 0,03
Ø [2.500±
Ø [2.500±
.001]
.001]
43,650±0,064
Ø 43,650±0,064
[1.7185 ±.0025] Ø[1.7185 ±.0025]
55,47± 0,89
[2.184±.035]
47,63
± 0,51
55,47±
0,89
[1.875
±.020]
[2.184±.035]
Involute
spline
Involute spline
fillet root side fit fillet
root±side
0,51fit
13 tooth 8/16 pitch 13 47,63
tooth 8/16 pitch
[1.875
±.020]
will fit ANSI B92.1 1970
will fit ANSI B92.1 1970
class 5 mating splines
class 5 mating splines
61,93
[2.438]
74,55
[2.935]
[.250±.002]
+0,03 Square key x 25,40 ±0,60 Long
9,52
[1.000±
.025] hex locknut per
1.00-20 UNEF-2B-0,00
grade
5 slotted
hex locknut
1.00-20
UNEF-2B
grade
5 per
slotted
SAE J501 (except
38,1
[1.50]
flat)
SAE
J501across
(except
38,1 [1.50] across flat)
.375 +.001
+0,03
±0,60
3,96
recommended9,52
torque
N·m
[320
lbf·ft]
[-.000
]to 434
recommended
torque
toplus
434
N·m [320
lbf·ft] plus
Ø
Thru
Long
Square
key
x 25,40
-0,00
[.156]
torque61,93
required to align
slotted
nut to
[1.000±
.025]
torque
required
toshaft
align
slotted
nut to shaft
cross[2.438]
hole, torque
not
to
exceed
563
N·m
[415
lbf·ft]
+.001
cross
hole,
torque
not
to
exceed
563
N·m
[415 lbf·ft]
.375and shaft threads
lubricate nut face
3,96 and
lubricate
nut
face
shaft threads
[-.000
]
Ø63,50±
Thru
74,55
0,03
[.156]
Ø [2.500±
.001]
[2.935]
125± 0,33 taper 6,35±
per125±
meter
0,050,33 taper per meter
[1.500±.004 taper
per
foot]
[1.500±
.004
taper
63,50±
0,03per foot]
[.250±
.002]
Ø [2.500±
.001]
6,35±0,05
1.00-20
UNEF-2B
grade
5 slotted hex locknut per
[.250±.002]
61,93
[2.438]
74,55
61,93
[2.935]
[2.438]
74,55
[2.935]
Model Code 14 - 14 Tooth
Torque: 791 N·m (7.000 lbf·in)
55,47± 0,89
55,47±
[2.184 ±0,89
.035]
[2.184
47,63±.035]
± 0,51
47,63±0,51
[1.875±.020]
[1.875 ±.020]
SAE J501 (except 38,1 [1.50] across flat)
recommended torque to 434 N·m [320 lbf·ft] plus
1.00-20
UNEF-2B
grade
5 slotted
locknut per
torque
required
to align
slotted
nut hex
to shaft
SAEhole,
J501torque
(exceptnot
38,1
across
flat)[415 lbf·ft]
cross
to [1.50]
exceed
563 N·m
recommended
to 434
N·m [320 lbf·ft] plus
lubricate
nut facetorque
and shaft
threads
torque required to align slotted nut to shaft
cross hole, torque not to exceed 563 N·m [415 lbf·ft]
125±nut
0,33
taper
meter
lubricate
face
andper
shaft
threads
[1.500±.004 taper per foot]
125± 0,33 taper per meter
[1.500±.004 taper per foot]
Model Code 21 - 21 Tooth
Torque: 1130 N·m (10.000 lbf·in)
55,47± 0,89
[2.184 ±.035]
47,63±0,51
[1.875 ±.020]
63,50± 0,03
63,50± 0,03
Ø [2.500
Ø [2.500 ± .001]
± .001]
Ø 63,50±0,03
31,160±0,127
[2.500±.001]
Ø [1.2268±.0050]
Ø 31,160±0,127
Ø 34,442 ±0,127 [1.2268±.0050]
55,47± 0,89
[2.184 ±.035]
47,63±0,51
55,47± 0,89
[1.875
±.020]
[2.184
±.035]
Involute
spline
Involute spline
Involute spline
fillet
sidefit
fit fillet root
47,63±0,51
fillet root
root side
side fit
21
16/32pitch
pitch
[1.875
14 tooth 12/24
14 tooth
12/24±.020]
pitch
will
ANSI B92.1
B92.11970
1970
will fit ANSI
will
fit ANSI B92.1 1970
class 5 mating
class
matingsplines
splines
class 5 mating splines
[1.3560±.0050]
55,47± 0,89
[2.184 ± .035]
47,63 ± 0,51
[1.875±.020]
55,47 ± 0,89
[2.184± .035]
47,63 ± 0,51
[1.875±.020]
Ø 63,50
[2.500
Ø 63,50±0,03
[2.500±.001] 37,62± 0,13
Ø
34,442
±0,127
Ø
[1.481±.005]
[1.3560±.0050]
Involute spline
Involute spline
fillet root side fit
fillet root side fit
21 tooth 16/32 pitch 23 tooth 16/32 pitch
will fit ANSI B92.1 1970
will fit ANSI B92.1 1
class 5 mating splinesclass 5 mating splin
63,50± 0,03
63,50 ± 0,03
Ø [2.500 ± .001]
Ø [2.500±
.001]
31,160±0,127
43,650±0,064
Ø [1.2268±.0050]
Model Code 23 -Ø23
Tooth 63,50 ± 0,03 Model Code 28 - 27 Tooth
63,50± 0,03
[1.7185 ±.0025]
Ø [2.500 ± .001]
Ø
Torque: 1469 N·m (13.000 lbf·in)
[2.500± .001] Torque: 734 N·m (6.500 lbf·in)
31,160±0,127
Ø [1.2268±.0050]
Ø 43,650±0,064
47,62 ± 0,51
[1.7185 ±.0025]
[1.875 ± .020]
55,47 ± 0,89
47,62 ± 0,51
39,60 ± 0,89
Involute[2.184±
spline.035]
[1.875 ± .020]
Involute spline
[1.559±.035]
fillet root
side± fit
47,63
0,51
fillet root side fit
39,60
±
0,89
13 tooth[1.875±.020]
8/16 pitch
14 tooth 12/24 pitch
For rear unit of tandem
[1.559±.035]
Involute
Involute
will
fit ANSIspline
B92.1 1970
will
fit ANSIspline
B92.1 1970 with front unit having
fillet
root
side
fit
fillet5 root
sidesplines
fit
class 5 mating splines
integral c-pad
class
mating
For
rear
unit
of
tandem
13 tooth 8/16 pitch
with front unit having 14 tooth 12/24 pitch
will fit ANSI B92.1 1970
will
fit
ANSI
B92.1
1970
integral c-pad
Ø 63,50± 0,03
class 5 mating splines
class 5 mating splines
[2.500± .001]
29,51±
0,13
Ø
63,50 ±0,03
[1.162±.005]
Ø [2.500±.001]
Ø 63,50± 0,03
[2.500± .001]
Ø 29,51± 0,13
Ø 37,62± 0,13
[1.162±.005]
[1.481±.005]
Involute spline
fillet root side fit
23 tooth 16/32 pitch
will fit ANSI B92.1 1970
class 5 mating splines
Involute spline
fillet root side fit
27 tooth 24/48 pitch
will fit ANSI B92.1 1970
class 5 mating splines
Involute spline
fillet root side fit
27 tooth 24/48 pitch
will fit ANSI B92.1 1970
class 5 mating splines
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
21
Auxiliary Mount Options
Position 25
Model Code K - A-pad adapter with 11 tooth
Torque: 170 N·m (1.500 lbf·in)
Model Code C - A-pad adapter with 9 tooth
Torque: 113 N·m (1.000 lbf·in)
Spline to mate with internal involute
Spline to mate with internal involute
filletwith
rootinternal
side fitinvolute
9 tooth 16/32 pitch
Spline to mate
Spline
to mate with
internal involute
30°
angle
per ANSI B92.1-1970
filletSpline
root side
fitpressure
9
tooth
16/32
pitch
tofillet
mate
with
internal
involute
root side
fit 9 tooth
16/32 pitch
maximum
allowable
auxiliary
pump torque
30° fillet
pressure
angle
per
ANSI
B92.1-1970
root30°
side
fit 9 tooth
16/32
pressure
angle
perpitch
ANSI B92.1-1970
maximum
allowable
auxiliary
pump
torque
58.4
n·m
[517
lbf·in]
30° pressure
angleallowable
per ANSIauxiliary
B92.1-1970
maximum
pump torque
58.4maximum
n·m [517
lbf·in]
allowable
58.4
n·m [517auxiliary
lbf·in] pump torque
31.8 Maximum allowable
58.4 n·m [517 lbf·in]
[1.25]
Maximum
allowable
shaft protrusion
31.8
31.8 Maximum allowable
[1.25] shaft protrusion
[1.25] shaft
allowable
protrusion
31.8 Maximum
[1.25]
O-ring
supplied
0.05
shaft protrusion as loose item
Ø 82.63 ±O-ring
supplied
as
loose
item
82.63
±
0.05
[3.253
±
.002]
O-ring
supplied
as
loose
to be installed
prior
to item
Ø
82.63 ± 0.05
[3.253 ± .002] Ø[3.253 to
be
installed
prior
to loose
O-ring
supplied
as
item
± .002]
assembly
of auxiliary
to
be
installed
prior
to unit
Ø 82.63 ± 0.05
ofassembly
auxiliary
unit
[3.253 ± .002] assembly
to be installed
prior
to
of
auxiliary unit
(ISO 3019/1
SAE-J744
A-Pad)
assembly
of auxiliary
(ISO 3019/1 (ISO
SAE-J744
A-Pad)
3019/1
SAE-J744
A-Pad)unit
mounting
flange
specification
(ISO 3019/1
SAE-J744
A-Pad)
mounting
flange
specification
mounting
flange
specification
mounting
flange
Section
A-Aspecification
flat root
side fit 11 tooth 16/32 pitch
Spline toSpline
mate with
internal
to
mate
with involute
internal
30fl
pressure
angle involute
per ANSI B92.1-1970
flat
root side
fit 11
tooth
16/32
pitch
Spline
to
with
internal
involute
flatmate
root
side
fit
11
tooth
16/32 auxiliary
pitch
maximum
allowable
pump torque
30fl
angle
per
ANSI
B92.1-1970
flatpressure
root30fl
side
fit
11
tooth
16/32
pitch
pressure angle per ANSI B92.1-1970
131,8
n·m
[1167
lbfÆin]
maximum
allowable
auxiliary
pump
torque
30fl pressure
angle
per
ANSI
B92.1-1970
maximum allowable auxiliary pump torque
131,8
n·m131,8
[1167
lbfÆin]
maximum
allowable
auxiliary
n·m
[1167
lbfÆin]pump torque
Maximum allowable
131,8 n·m [1167 lbfÆin]
38.1
Maximum
allowable
protrusion
[1.50] Shaft
Maximum
allowable
38.1
38.1
protrusion
[1.50] Shaft
Maximum
allowable
protrusion
[1.50] Shaft
38.1
[1.50] Shaft protrusion
O-ring supplied as loose item to be
Ø 82.63 ± 0.05
[3.253 ± .002]
O-ring
supplied
as
looseas
item
totobe
Ø 82.63 ± 0.05Ø 82.63 ± 0.05
installed
prior
assembly
O-ring supplied
loose
item
to be of auxiliary uni
[3.253
±
.002]
[3.253
±
.002]
installed
prior
to
of auxiliary
unit
82.63
±
0.05
O-ring
supplied
as
loose
item
to beof auxiliary
installedassembly
prior
to assembly
unit
Ø
[3.253 ± .002]
(ISO
3019/1
SAE-J744
a-pad)
installed
prior
to
assembly
of
auxiliary
unit
(ISO 3019/1
SAE-J744
a-pad)
(ISO 3019/1
SAE-J744
a-pad)
mounting
flange
specification
mounting
flange
specification
(ISO 3019/1
SAE-J744
a-pad)
mounting
flange
specification
mountingSection
flange specification
B-B
Section A-A
Section A-A
Section A-A
Section Section
B-B
B-B
Section B-B4x auxiliary
25,4
25,425,4
[1.00]
4xauxiliary
auxiliary
mounting
holes
[1.00]
25,4 [1.00]
4x auxiliary mounting
holes
4x
mounting
holes
[1.00]
4x auxiliary
mounting
3/8-16
UNC-2B,
depth
19.0
[.75]
3/8-16
UNC-2B,
depth
19.0holes
[.75]
3/8-16
UNC-2B,
depth
19.0
[.75]
3/8-16 UNC-2B, depth 19.0 [.75]
A
53.19
53.19
53.19
2x [2.094]
2x [2.094]
53.192x
2x [2.094] [2.094]
106.38
2x 106.38
2x2x106.38
[4.188]
[4.188]
2x 106.38 [4.188]
[4.188]
A
AA
A
AA
A
B
Model Code D - B-pad adapter with 13 tooth
B
B
Model Code E - B-B pad adapter with 15 tooth
Torque: 407 N·m (3.600 lbf·in)
Torque: 283 N·m (2.500 lbf·in)
Splinewith
to mate
withinvolute
internal involute
Spline to mate
internal
Spline
mate
with
internal
involute
fillet
root
side
fitto
15mate
tooth
16/32internal
pitch involute
fillet
roottoside
fit
15
tooth
16/32
pitch
Spline
with
fillet
root30°
side
fit 15per
tooth
16/32
pitch
pressure
angle
per
ANSI B92.1-1970
30°
pressure
angle
ANSI
B92.1-1970
fillet
root
side
fit
15
tooth
30° pressure
angleallowable
per ANSIpump
B92.1-1970
maximum
auxiliary
pump 16/32
torquepitch
maximum
allowable
auxiliary
torque
30°
pressure
angle
per
ANSI
B92.1-1970
maximum
allowable
auxiliary
pump
torque
[2987 lbf·in]
337.5 N·m337.5
[2987N·m
lbf·in]
allowable auxiliary pump torque
337.5 N·m [2987 maximum
lbf·in]
Spline
mate with
internal involute
Spline to mate
withtointernal
involute
Spline tofillet
mate
with
internal
involute
side
fit
13 tooth
16/32involute
pitch
fillet root side
fitroot
13totooth
16/32
pitch
Spline
mate
with
internal
root30°
side
fitper
13 tooth
16/32
pressure
angle
per pitch
ANSI B92.1-1970
30° fillet
pressure
angle
ANSI
B92.1-1970
fillet
root
side
fit
13
tooth
16/32
30° pressure
angle
per ANSI
B92.1-1970
maximun
allowable
auxiliary
pumppitch
maximun
allowable
auxiliary
pump
30°
pressure
angle
per
ANSI B92.1-1970
maximun
allowable
auxiliary
pump
torque
209
N·m
[1852
lbf·in]
torque 209 N·m
[1852 lbf·in]
maximun
allowable
torque 209
N·m [1852
lbf·in] auxiliary pump
torque 209 N·mMaximum
[1852 lbf·in]
Maximum
allowable allowable
41.2
41.2
Maximum
allowable
shaft
protrusion
[1.622]
41.2
shaft
protrusion
[1.622]
[1.622] shaft protrusion
Maximum
allowable
41.2
O-ring
supplied
asprotrusion
loose
item to be
shaft
[1.622]
O-ring
supplied
as
loose
item
to
be
101.65
±
0.03
O-ring supplied
as
loose
item to beof auxiliary unit
101.65 ± 0.03Ø
installed
prior
toofassembly
± 0.03
[4.002
±.001]
installed
prior
to
assembly
auxiliary
unitunit
Ø [4.002101.65
installed prior to assembly of auxiliary
Ø ±.001]
[4.002 ±.001]
101.65 ± 0.03
337.5 N·m [2987 lbf·in]
45.9 Maximum
45.9 Maximum
allowableallowable
[1.81] Shaft
45.9 Maximum
allowable
protrusion
[1.81]
protrusion
[1.81]Shaft
Shaft protrusion
45.9
O-ring supplied as loose item to be
30.0
30.0
4x auxiliary mounting[1.18]
holes
Section
C-C
4x auxiliary
mounting
holes
[1.18]
4x auxiliary
mounting
holes
101.65 ± 0.03
(ISO
B-Pad)
Ø3019/1 SAE-J744
(ISO
3019/1
SAE-J744
B-Pad)
installed prior to assembly of auxiliary unit
(ISO
3019/1
SAE-J744
B-Pad)
[4.002flange
± .001]
mounting
specification
mounting
flange
specification
mounting flange specification
(ISO 3019/1 SAE-J744 B-Pad)
Section D-D
Section
D-D
Section
D-D mounting
flange specification30.0
4x auxiliary
30.0
[1.18]
30.0
4x4x
auxiliary
30.0 [1.18]
auxiliary
mounting
Section
D-D holes [1.18]
mounting
holes
[1.18]
mounting
holes
1/2-13
UNC-2B, depth 23.4 [.92]
1/2-13
UNC-2B,
23.4
4x auxiliary
1/2-13
UNC-2B,depth
depth
23.4[.92]
[.92]
1/2-13 UNC-2B, depth 23.4 [.92]
1/2-13
UNC-2B,
depth
23.423.4
[.92][.92]
1/2-13
UNC-2B,
depth
30.0
[1.18]
mounting holes
1/2-13 UNC-2B, depth 23.4 [.92]
30.0
[1.18]
4x auxiliary mounting holes
1/2-13 UNC-2B, depth 23.4 [.92]
2x 146.05
2x 146.05
2x 146.05 [5.750]
[5.750]
[5.750]
C
C
C
S S
S
C
S
22
C
2x 146.05
C C
73.02 [5.750]
2x
2x 73.02
2x 73.02 [2.875]
[2.875]
[2.875]
C
2x 73.02
[2.875]
Maximum allowable
[1.81]
O-ring supplied
as loose item to be
Shaft protrusion
asasloose
item
101.65 ± 0.03 O-ring
O-ringsupplied
supplied
loose
itemtotobebeof auxiliary unit
101.65 ± 0.03
Ø
installed
prior
to assembly
Ø 101.65 ± 0.03
[4.002 ± .001]installed prior
to
assembly
of
unit
[4.002
Ø ± .001]
installed prior toO-ring
assembly
ofauxiliary
auxiliary
unit item to be
[4.002 ± .001]
supplied
as loose
(ISO
3019/1B-Pad)
SAE-J744
B-Pad) prior to assembly of auxiliary unit
installed
Ø [4.002
(ISO(ISO
3019/1
SAE-J744
±.001]
3019/1
SAE-J744
B-Pad)
mounting
flange
specification
mounting
flange
specification
mounting flange specification
(ISO 3019/1
Section
C-C SAE-J744 B-Pad)
Section
C-C
Section
C-C
mounting
flange specification
B
4x auxiliary
25,4
25,4
4x auxiliary
25,4
mounting
holes mounting
[1.00]
4x auxiliary
mounting
holes
[1.00]
25,4holes
[1.00]
3/8-16
UNC-2B,
3/8-16
UNC-2B,
mounting
holes
3/8-16
UNC-2B,[1.00]
depth
depth
19,0
[.75]19,0
3/8-16
UNC-2B,
depth
[.75]19,0 [.75]
depth 19,0 [.75]
2x 53,19 2x 53,192x 53,19
53,19 [2.094] [2.094]
2x[2.094]
[2.094]
2x 106,382x 106,382x 106,38
106,38 [4.188] [4.188]
2x[4.188]
B
B [4.188]
B
B
DD
D
SS
D
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
S
2x 146.05
146.05 [5.750]
2x2x146.05
[5.750]
D[5.750]
DD
73.02
2x
2x 146.05
73.02 [2.875]
2x2x73.02
[5.750]
[2.875]
[2.875]
S
D
2x 73.02
[2.875]
Auxiliary Mount Options
Position 25
Spline to mate with internal involute
fillet root side fit 14 tooth 12/24 pitch
30° pressure angle per ANSI B92.1-1970
maximum allowable auxiliary pump torque
450 N•m [3982 lbf•in]
Model Code F - C-pad adapter with
14 tooth and charge pump
Torque: 701 N·m (6.200 lbf·in)
58.4 Maximum allowable
[2.30] shaft protrusion
+0.03
Ø127.05 -0.05
+.001
[5.002] -.002
(ISO 3019/1 SAE-J744 c-pad)
mounting flange specification
O-ring supplied as loose item to
be installed into o-ring groove
prior to assembly of auxiliary unit
O-ring supplied as loose to
be installed into o-ring groove
prior to assembly of auxiliary unit
Section E-E
114.50
[4.508]
57.25
[2.254]
4x auxiliary mounting
31.8
holes 1/2-20 UNF-2B thru [1.25]
2x auxiliary
Mounting holes
5/8-18 UNF-2B thru
Ø
Spline to mate with internal
involute fillet root side fit 27
tooth 24/48 pitch maximum
allowable auxiliary pump
torque 870 N·m [7700 lbf·in]
114.50
[4.508]
E
E
S
Spline to mate with internal involute
fillet root side fit 14 tooth 12/24 pitch
30° pressure angle per ANSI B92.1-1970
maximum allowable auxiliary pump torque
450 N•m [3982 lbf•in]
180.98
[7.125]
57.25
[2.254]
90.49
[3.562]
Model Code H - C-pad mount with
27 tooth w/out
charge pump
58.4 Maximum allowable
Torque:
8
14
N·m
(7.200 lbf·in)
[2.30] shaft protrusion
+0.03
Ø127.05 -0.05
+.001
[5.002] -.002
d)
tion
O-ring supplied as loose item to
be installed into o-ring groove
prior to assembly of auxiliary unit
ction E-E
.50
08]
57.25
[2.254]
4x auxiliary mounting
31.8
holes 1/2-20 UNF-2B thru [1.25]
2x auxiliary
Mounting holes
5/8-18 UNF-2B thru
114.50
[4.508]
E
S
180.98
[7.125]
57.25
[2.254]
O-ring supplied as loose to
be installed into o-ring groove
prior to assembly of auxiliary unit
Spline to mate with internal
involute fillet root side fit 27
tooth 24/48 pitch maximum
allowable auxiliary pump
torque 870 N·m [7700 lbf·in]
49.1 [1.94]
+0.03
127.05 -0.05
+.001
Ø
[5.002] -.002
114.50
[4.508] 57.25
[2.254]
Maximum allowable
shaft protrusion
(ISO 3019/ l SAE - J744 C-Pad)
mounting flange specification
4 x auxiliary
mounting holes
1/2-20 UNF 2B
depth 22.4 [.88]
57.25
[2.254]
114.50
[4.508]
90.49
[3.562]
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
23
Operational Diagram
Typical Series 2 Variable Displacement Pump/Fixed
Displacement Motor Schematic
Note:
For Ease of Viewing,
The Servo Control
Cylinder, Swashplate,
Manual Displacement
and Control Valve are
Control
Valve
Shown Removed
From The Pump
Orifices
Heat Exchanger
Reservoir
Heat Exchanger
By-Pass Valve
Bubble
Separator
Screen
30˚ to Horizon
Inlet Flow
Case Pressure
Control Pressure
Charge Pressure
High pressure
Filter
Orifice Check Valve
Variable Pump
Swashplate
Servo Control
Cylinder
IPOR
Valve
Shuttle
Valve
System
Relief Valves/
Check Valves
Variable
Pump
IPOR
Valve
Low
Pressure
Relief
Valve
Charge
Pressure
Relief
Valve
Internal Drained
to Pump Case
Note:
For ease of viewing, the
Servo Control Cylinder,
Swashplate, and Control
Valve are shown removed
from the pump.
24
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
Fixed Motor
Swashplate
Charge
Pump
Fixed
Motor
Application Information
Component Descriptions
The operational diagram
on page 29 shows a typical heavy duty hydrostatic
transmission. The axial piston pump and axial piston
motor are the main components. The filter, reservoir,
heat exchanger, and oil
lines make up the rest of
the system. The function of
each of these components
is described below:
A separate energy source,
such as an electric motor
or internal combustion
engine, turns the input
shaft of the pump.
Variable Displacement
Axial Piston Pump
The variable displacement
pump provides a flow of
high pressure oil. Pump
output flow can be varied
to obtain the desired motor
output speed. For example,
when the pump’s displacement is zero, no oil is
pumped and the transmission’s motor output shaft is
stopped. Conversely, maximum pump displacement
produces maximum motor
shaft speed. The direction
of high pressure flow can
also be reversed; doing so
reverses the direction the
motor output shaft rotates.
A charge pump is integrated into the piston pump
and driven by the shaft
of the piston pump. The
drawing illustrates a suction filtration circuit. Eaton
recommends a suction filter without a bypass valve.
The charge pump has a
Low Pressure Relief Valve
that regulates the output
pressure.
Eaton’s Series 2 Pump
offers High Pressure
Relief Valves and Pressure
Override Control for system high pressure protection. (see page 29 for a
description of these features).
Fixed Displacement Axial
Piston Motor
The motor uses the high
pressure oil flow from the
pump to produce transmission output. The high
pressure oil comes to
the motor through one of
the high pressure lines. It
enters the motor, turns the
output shaft, then returns
to the pump. Eaton piston
motors integrate an hot oil
shuttle and low pressure
relief valve into the end
cover. The shuttle valve
and low pressure relief
valve direct excess charge
pump flow into the motor
case. The shuttle valve is
activated by high pressure
and directs excess charge
pump flow over the low
pressure relief valve. This
flushing action allows the
charge pump to provide
clean, cool oil to the closed
loop circuit.
Reservoir
The reservoir is an important part of the hydrostatic
transmission system. It
should provide adequate oil
storage and allow easy oil
maintenance.
The reservoir must hold
enough oil to provide a
continuous oil supply to the
charge pump inlet. It must
also have enough room for
the hydraulic oil to expand
as the system warms up.
Consider charge pump flow
when sizing the reservoir:
One half (.5) minute times
(X) the maximum charge
pump flow should be the
minimum oil volume in the
reservoir. Maintaining this
oil volume will give the oil a
minimum of thirty (30) seconds in the reservoir. This
will allow any entrained air
to escape and contamination to settle out of the oil.
To allow for oil expansion,
the reservoir’s total volume should be at least six
tenths (.6) minute times (X)
the maximum charge pump
flow.
The reservoir’s internal
structure should cut down
turbulence and prevent oil
aeration.
The line returning flow to
the reservoir should be fitted with a diffuser to slow
the incoming oil to 1 to 1.2
meters (3-4 feet) per second to help reduce turbulence. The return flow line
should also be positioned
so that returning oil enters
the reservoir below the
liquid surface. This will help
reduce aeration and foaming of the oil.
The reservoir should have
baffles between the return
line and suction line.
Baffles prevent return flow
from immediately reentering the pump.
sediment. The suction line
entrance should be flared
and covered with a screen.
The reservoir should be
easily accessible. The fill
port should be designed to
minimize the possibility of
contamination during filling
and to help prevent over
filling. There should be a
drain plug at the lowest
point of the reservoir and
it should also have a cleanout and inspection cover so
the reservoir can be thoroughly cleaned after prolonged use. A vented reservoir should have a breather
cap with a micronic filter.
Sealed reservoirs must be
used at altitudes above
2500 feet. These reservoirs
should be fitted with a twoway micronic filter pressure
cap to allow for fluid expansion and contraction.
In both cases the caps
must be designed to
prevent water from
entering the reservoir
during bad weather or
machine washing.
A hydrostatic transmission
with a well designed reservoir will run quieter, stay
cleaner and last longer.
A sixty mesh screen placed
across the suction chamber
of the reservoir will act as
a bubble separator. The
screen should be placed at
a thirty degree angle to the
horizon.
The entrance to the suction line should be located
well below the fluid surface so there is no chance
of air being sucked into
the charge pump inlet.
However, the suction line
entrance should not be
located on the bottom
of the reservoir where
there may be a buildup of
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
25
Application Information
Filter
Charge Pump Inlet Line
High Pressure Lines
A filter must be used to
keep the hydraulic fluid
clean. Either a suction filter
or a pressure side filter
may be used. The filter
must be a no-bypass type.
A suction filter is shown in
the operational diagram on
page 29.
The inlet line to the charge
pump should be large
enough to keep the
pressure drop between
the reservoir and charge
pump inlet within the limits
described in the filter
section. Fittings will
increase the pressure drop,
so their number should be
kept to a minimum. It is
best to keep fluid velocities
below 1,25 meters (4 feet)
per second.
The high pressure lines
that connect the pump
and motor must be able
to withstand the pressures
generated in the high
pressure loop.
System oil particulate
levels should not exceed
ISO 18/13. Refer to
Eaton Hydraulic Fluid
Recommendations on
page 33.
Recommended beta ratios
for each filter type are
listed below:
Fluid and temperature
compatibility must be
considered when selecting
the inlet line.
Suction Filter
ß10 = 1.5 to 2.0
Pump and Motor Case
Drain Lines
Pressure Side Filter
ß10 = 10 to 20
The case drain lines should
be large enough to limit the
pump and motor case
pressures to 2,8 bar (40
psi) at normal operating
temperatures. Fluid and
temperature compatibility
must also be considered
when selecting the case
drain lines.
When a suction filter is
used, its flow capacity
must be large enough to
prevent an excessive
pressure drop between
the reservoir and charge
pump inlet. The pressure at
the charge pump inlet port
must not be less than 0.8
bar (11.6 psi) absolute
at normal continuous
operating temperatures.
26
Heat Exchanger
Use of a heat exchanger is
dependent on the transmission’s duty cycle and on
machine layout. The normal
continuous operating fluid
temperature measured in
the pump and motor cases
should not exceed 80°C
(180°F) for most hydraulic
fluids. The maximum fluid
temperature should not
exceed 105°C (220°F).
The heat exchanger should
be sized to dissipate
25% of the maximum
input power available to
the transmission. It must
also be sized to prevent
the case pressures in the
pump and motor from
getting too high. Case
pressure up to 2.8 bar
(40 psi), at normal
operating temperatures,
are acceptable.
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
Heat Exchanger Bypass
Valve
The heat exchanger bypass
valve is a pressure and/
or temperature valve in
parallel with the heat
exchanger. Its purpose is
to prevent case pressures
from getting too high. The
heat exchanger bypass
valve opens when the oil is
thick, especially during cold
starts.
Reservoir Return Line
The same general requirements that apply to case
drain lines apply to the
reservoir return line.
Application Information
Shaft Couplings and
Mounting Brackets
Shaft couplings must be
able to with stand the
torque that will be transmitted to the pump or motor.
If the pump or motor is to
be directly coupled to the
drive, the misalignment
should not exceed .050
mm (.002 in.) total indicator
run-out for the combination
of perpendicularity and concentricity measurements.
The hardness of the
couplings connected to
Eaton pump or motor
shafts should be 35 Rc for
tapered or straight keyed
shafts and 50-55 Rc for
splined shafts.
Pump Valve Plates
Eaton Heavy duty pumps
may be fitted with either
a V-groove valve plate or
a propel valve plate. Propel
valve plates should be
used in applications where
overrunning loads may be
present.
Open Loop Circuits
Eaton heavy duty pumps
and heavy duty motors
may be used in open loop
circuits under certain
operating conditions.
Consult your Eaton
representative for details.
Orientation
The mounting orientation
of Eaton heavy duty pumps
and motors is unrestricted.
The case drain line that
carries the flow leaving the
pump or motor should be
connected to the highest
drain port on each of the
units. This assures that
the pump and motor cases
remain full.
Multiple Pump or Motor
Circuits
Multiple pumps or motors
can be combined in the
same circuit. When two
pumps are used in a parallel circuit, their swashplate
controls can be operated
in phase or in sequence.
The following precautions
should be observed whenever multiple pumps and/
or motors are connected in
the same circuit:
1. C
harge pump flow must
be greater than the sum
of the charge pump flow
requirements of the individual units.
2. T
he possibility of motor
overspeeding increases
in multiple motor circuits. The parallel motor
circuit will act as a
frictionless differential. Should one of the
motors stall the other
could overspeed. The
motors used in parallel
circuits should, therefore, be sized to prevent
overspeeding. Valves
that will limit the flow
to each of the motors
may be used to prevent
overspeeding. This will
allow the use of smaller
motors, however the
flow limiting valves will
create heat.
3. W
hen using one pump
with multiple motors,
the case drain lines
should be connected in
series. The case flow
should be routed from
the most distant motor,
through the remaining
motors, to the pump,
and finally back to the
reservoir. The most distant motor should have
the valve block or integral shuttle valve while
the additional motors do
not need a valve block
or integral shuttle valve.
A remote valve block is
also available for multiple
motor circuits. A seriesparallel drain line circuit
may be needed for the
high case flow created in
multiple pump circuits.
In either case, each
pump and motor should
be checked for proper
cooling when testing the
prototype circuit.
4. Series circuits present a
unique problem for axial
piston motors. Pressure
applied to the input port
and discharge port are
additive as regards to
the load and life of the
drive shaft and the drive
shaft bearings. Please
consult with your Eaton
representative regarding
series circuits.
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
27
Hydraulic Fluid
Recommendations
Introduction
The ability of Eaton hydrostatic components to
provide the desired performance and life expectancy
depends largely on the fluid
used. The purpose of this
document is to provide
readers with the knowledge required to select the
appropriate fluids for use in
systems that employ Eaton
hydrostatic components.
One of the most important
characteristics to consider
when choosing a fluid to
be used in a hydraulic system is viscosity. Viscosity
choice is always a compromise; the fluid must be
thin enough to flow easily
but thick enough to seal
and maintain a lubricating
film between bearing and
sealing surfaces. Viscosity
requirements for Eaton’s
Heavy Duty Hydrostatic
product line are specified
later in this document.
Viscosity and Temperature
Fluid temperature affects
viscosity. In general, as the
fluid warms it gets thinner
and its viscosity decreases.
The opposite is true when
fluid cools. When choosing
a fluid, it is important to
consider the start-up and
operating temperatures of
the hydrostatic system .
Generally, the fluid is thick
when the hydraulic system
28
is started. With movement,
the fluid warms to a point
where the cooling system
begins to operate. From
then on, the fluid is maintained at the temperature
for which the hydrostatic
system was designed.
In actual applications this
sequence varies; hydrostatic systems are used
in many environments
from very cold to very hot.
Cooling systems also vary
from very elaborate to very
simple, so ambient temperature may affect operating
temperature. Equipment
manufacturers who use
Eaton hydrostatic components in their products
should anticipate temperature in their designs and
make the appropriate fluid
recommendations to their
customers.
In general, an ISO viscosity
grade 68 fluid is recommended for operation in
cold to moderate climates.
An ISO viscosity grade 100
fluid is recommended for
operation in moderate to
hot climates.
Cleanliness
Cleanliness of the fluid in
a hydrostatic system is
extremely important. Eaton
recommends that the fluid
used in its hydrostatic
components be maintained
at ISO Cleanliness Code
18/13 per SAE J1165. This
code allows a maximum of
2500 particles per milliliter
greater than 5 mm and a
maximum of 80 particles
per milliliter greater than
15 mm. When components
with different cleanliness
requirements are used
in the same system, the
cleanest standard should
be applied. OEM’s and
distributors who use Eaton
hydrostatic components
in their products should
provide for these requirements in their designs. A
reputable filter supplier can
supply filter information.
Fluid Maintenance
Maintaining correct fluid
viscosity and cleanliness
level is essential for all
hydrostatic systems. Since
Eaton hydrostatic components are used in a wide
variety of applications it
is impossible for Eaton to
publish a fluid maintenance
schedule that would cover
every situation. Field testing and monitoring are the
only ways to get accurate
measurements of system
cleanliness. OEM’s and
distributors who use Eaton
hydrostatic components
should test and establish
fluid maintenance schedules for their products.
These maintenance schedules should be designed
to meet the viscosity and
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
cleanliness requirements
laid out in this document.
Fluid Selection
Premium grade petroleum
based hydraulic fluids will
provide the best performance in Eaton hydrostatic
components. These fluids
typically contain additives that are beneficial to
hydrostatic systems. Eaton
recommends fluids that
contain anti-wear agents,
rust inhibitors, antifoaming
agents, and oxidation inhibitors. Premium grade petroleum based hydraulic fluids
carry an ISO VG rating.
Hydraulic Fluid
Recommendations
Viscosity and Cleanliness
Guidelines
Optimum Product Line Minimum Range Maximum ISO
Cleanliness
Requirements Comments
Heavy Duty Piston 10cSt Pumps and Motors (60 SUS) 16 - 39 cSt 2158 cSt (80 - 180 SUS) (10,000 SUS)
18/13
• If the natural color of the
fluid has become black it
is possible that an overheating problem exists.
•C
ontact your Eaton
representative if you have
specific questions about
the fluid requirements
of Eaton hydrostatic
components.
Additional Notes:
•F
luids too thick to flow
in cold weather start-ups
will cause pump cavitation and possible damage. Motor cavitation is
not a problem during cold
start-ups. Thick oil can
cause high case pressures which in turn cause
shaft seal problems.
Biodegradable Oil
(Vegetable) Guidelines
• If the fluid becomes
milky, water contamination may be a problem.
•T
ake fluid level reading
when the system is cold.
Product Line Rating With Biodegradable Oil Comments
Heavy Duty Piston Pumps and Motors 80% of normal pressure rating listed
for mineral oils. 82° C (180° F) max fluid temp (unit)
71° C (160° F) max fluid temp (reservoir)
Additional Notes:
•V
iscosity and ISO cleanliness requirements must
be maintained as outlined
on previous page.
•B
ased on limited product
testing to date, no reduction in unit life is expected when operating at the
pressure ratings indicated
above.
•V
egetable oil is miscible with mineral oil.
However, only the
vegetable oil content is
biodegradable. Systems
being converted from
mineral oil to vegetable
oil should be repeatedly
flushed with vegetable oil
to ensure 100% biodegradability.
•S
pecific vegetable oil
products may provide
normal unit life when
operating at pressure ratings higher than those
indicated above.
•V
egetable oils oxidize
more quickly than petroleum based hydraulic
fluid. Care must be taken
to maintain fluid temperature within specified limits and to establish more
frequent fluid change
intervals.
EATON Series 2 Variable Displacement Piston Pump E-PUPI-MC004-E2 December 2012
29
Eaton
Hydraulics Group USA
14615 Lone Oak Road
Eden Prairie, MN 55344
USA
Tel: 952-937-9800
Fax: 952-294-7722
www.eaton.com/hydraulics
© 2012 Eaton Corporation
All Rights Reserved
Printed in USA
Document No. E-PUPI-MC004-E2
Supercedes E-PUPI-MC004-E1
December 2012
Eaton
Hydraulics Group Europe
Route de la Longeraie 7
1110 Morges
Switzerland
Tel: +41 (0) 21 811 4600
Fax: +41 (0) 21 811 4601
Eaton
Hydraulics Group Asia Pacific
Eaton Building
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Changning District, Shanghai
200335 China
Tel: (+86 21) 5200 0099
Fax: (+86 21) 2230 7240