UENR3951
February 2013
FLUID POWER SYMBOLS
BASIC COMPONENT SYMBOLS
Tap Locations
Pressure, Sampling, and Sensor
Tap
Number
MAIN
Schematic
Location
Description
AA
Main Worktool System Pressure
D-3
BB
SOS
C-2
CC
Signal Pressure
B-5
DD
Main System Pressure (Pump 1 Forward)
B-5
EE
Charge Pressure
B-5
FF
Main System Pressure (Pump 2 Forward)
B-5
GG
Main System Pressure (Pump 2 Reverse)
A-5
HH
Main System Pressure (Pump 1 Reverse)
A-5
PUMP OR MOTOR
FLUID CONDITIONER
SPRING
CONTROL VALVES
VARIABILITY
SPRING
(ADJUSTABLE)
LINE RESTRICTION
(VARIABLE)
PRESSURE
COMPENSATION
ONE POSITION
LINE RESTRICTION
(FIXED)
HYDRAULIC
PNEUMATIC
ENERGY TRIANGLES
TWO POSITION
Media Number
AB
PUMP
(VARIABLE & PRESSURE
COMPENSATED)
LINE RESTRICTION
(VARIABLE & PRESSURE
COMPENSATED)
ATTACHMENT
VALVE PORTS
THREE POSITION
TWO - WAY
THREE - WAY
CONTROL VALVES
Description
AUX
PUMP
(2 - SECTION)
VALVES
VALVE ENVELOPES
Related Manuals
RESTRICTION
FOUR - WAY
CHECK VALVES
A B
Parts Manual
P T
P T
NORMAL POSITION
SHIFTED POSITION
BASIC
SYMBOL
INFINITE POSITION
Machine System
Specifications
UENR0249
Testing and Adjusting
UENR0250
SPRING
LOADED
SHUTTLE
PILOT
CONTROLLED
FLUID STORAGE RESERVOIRS
Electrical System
Schematic: (Electrical System)
2
19
6
UENR0254
BB
216B3, 226B3, 236B3, 242B3, 247B3,
252B3, 257B3, and 259B3
Skid Steer Loader, Multi-terrain Loader,
and Compact Track Loader
Hydraulic System
11
5
216B3:
JXM1961-2282
226B3:
MWD2399-3010
236B3:
A9H1480-1729
PRESSURIZED
VENTED
PRESSURE
247B3:
TSL852-945
252B3:
TNK992-1161
FLOW
259B3:
YYZ1543-2037
SOLENOID
SOLENOID
OR MANUAL
SOLENOID
& PILOT
BIDIRECTIONAL
SOLENOID &
PILOT OR MANUAL
SERVO
THERMAL
DETENT
MANUAL CONTROL SYMBOLS
MANUAL SHUTOFF
GENERAL MANUAL
PUSH BUTTON
PEDAL
PILOT CONTROL SYMBOLS
RELEASED PRESSURE
EXTERNAL RETURN
18
UNIDIRECTIONAL
COMBINATION CONTROLS
242B3:
SRS1066-1329
257B3:
B7H894-1035
RETURN BELOW FLUID LEVEL
ROTATING SHAFTS
TEMPERATURE
PUSH - PULL LEVER
15
RETURN ABOVE FLUID LEVEL
MEASUREMENT
INTERNAL RETURN
REMOTE SUPPLY PRESSURE
SIMPLIFIED
COMPLETE
CROSSING & JOINING LINES
ACCUMULATORS
SPRING
INTERNAL
SUPPLY PRESSURE
HYDRAULIC & PNEUMATIC CYLINDERS
24
SPRING LOADED
GAS CHARGED
LINES CROSSING
HYDRAULIC MOTORS
HYDRAULIC PUMPS
25
FIXED
DISPLACEMENT
13
SINGLE ACTING
LINES JOINING
VARIABLE DISPLACEMENT
NON-COMPENSATED
FIXED
DISPLACEMENT
INTERNAL PASSAGEWAYS
INFINITE
POSITIONING
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
UNIDIRECTIONAL
BIDIRECTIONAL
BIDIRECTIONAL
Volume 1 of 2: Base Machines
14
DOUBLE ACTING
3 POSITION
FLOW IN ONE
DIRECTION
PARALLEL
FLOW
CROSS
FLOW
9
© 2013 Caterpillar, All Rights Reserved
12
2 POSITION
FLOW IN
EITHER
DIRECTION
Printed in U.S.A.
MACHINE - REAR VIEW
4
3
ELECTRICAL SYMBOLS TABLE
Component Locations (Volume 1)
Schematic
Location
Accumulator
149-0686
1
C-1
Cooler As - Radiator (216)
280-8309
2
C-1
Description
7
HH
GG
VIEW OF AREA “B”
MACHINE - FRONT VIEW
(ROTATED FOR CLARITY)
CC
21
23
AA
FF
A
DD
B
VIEW OF AREA “A”
(ROTATED FOR CLARITY)
EE
1
10
22
17
MAIN HYDRAULICS - RIGHT SIDE VIEW
16
20
Cooler As - Radiator (226/247)
280-8310
Cooler As - Radiator (236/242/252/257/259)
280-8312
Coupling - Female
193-8335
3
E-2
4
E-1
5
E-3
6
E-2
7
E-2
8
E-2
C-2
Coupling - Male
193-8334
Cylinder Gp - Lift (Left Hand) (216/226/247)
293-5706
Cylinder Gp - Lift (Left Hand) (236)
295-6952
Cylinder Gp - Lift (left Hand) (242/257/259)
329-4955
Cylinder Gp - Lift (Left Hand (252)
297-8699
Cylinder Gp - Lift (Right Hand) (216/226/247)
293-5705
Cylinder Gp - Lift (Right Hand) (236)
295-6951
Cylinder Gp - Lift (Right Hand) (242/257/259)
329-4955
Cylinder Gp - Lift (Right Hand) (252)
297-8699
Cylinder Gp - Tilt (Left Hand) (216/226/247)
293-5708
Cylinder Gp - Tilt (Left Hand) (236/252)
295-6954
Cylinder Gp - Tilt (Left Hand) (242/257/259)
329-4954
Cylinder Gp - Tilt (Right Hand) (216/226/247)
293-5707
Cylinder Gp - Tilt (Right Hand) (236/252)
295-6953
Cylinder Gp - Tilt (Right Hand) (242/257/259)
329-4953
Filter Gp - Oil
223-9974
9
Manifold As - Drain Manifold
308-0421
10
C-3
Motor Gp - Fan (Standard)
307-3036
11
C-2
12
B-6
13
B-4
Motor Gp - Single Speed (Left Hand) (216/226/242)
280-7854
Motor Gp - Single Speed (Left Hand) (236/252)
280-7856
Motor Gp - Single Speed (Left Hand) (247/257)
289-6355
Motor Gp - Single Speed (Right Hand) (216/226/242)
280-7854
Motor Gp - Single Speed (Right Hand) (236/252)
280-7856
Motor Gp - Single Speed (Right Hand) (247/257)
289-6355
Pump Gp - Implement & Charge (216/226/247) (Quiet)
269-9462
Pump Gp - Implement & Charge (216/226/247) (Standard)
236-5106
Pump Gp - Implement & Charge (236/242/252/257/259) (Quiet)
289-6358
Pump Gp - Implement & Charge (236/242/252/257/259) (Standard)
238-7642
Pump Gp - Single Speed (216)
307-3062
Pump Gp - Single Speed (226/247)
307-3064
14
A-3
15
B-3
Pump Gp - Single Speed (236/252)
307-3070
195-6768
16
D-1
Solenoid - Control Valve (1 & 2)
358-5951
17
D-1
192-0836
18
C-6
Tank Gp - Hydraulic
326-5781
19
B-2
20
E-4
21
C-5
22
B-6
23
D-3
24
E-6
25
E-7
112-1817
248-1268
Valve Gp - Brake (Single Speed) (236/252)
233-7131
Valve Gp - Check
123-4750
Valve Gp - Control (216/226/247)
336-1317
Valve Gp - Control (236)
366-1319
Valve Gp - Control (242/252/257/259)
336-1320
Valve Gp - Implement Pilot Control (With Float Detent Magnet)
299-9119
Valve Gp - S-Turn Resolver Block (Drive Pilot) (216/226/236/242/252)
356-5008
Valve Gp - S-Turn Resolver Block (Drive Pilot) (247/257)
356-5009
Valve Gp - S-Turn Resolver Block (Drive Pilot) (259)
356-5010
M
TRANSDUCER
(FLUID)
TRANSDUCER
(GAS / AIR)
GENERATOR
ELECTRIC MOTOR
PRESSURE SWITCH
PRESSURE SWITCH
(ADJUSTABLE)
TEMPERATURE
SWITCH
ELECTRICAL WIRE
ELECTRICAL SYMBOLS (ELECTRICAL)
PRESSURE
SWITCH
TEMPERATURE
SWITCH
LEVEL
SWITCH
FLOW
SWITCH
ELECTRICAL SCHEMATIC EXAMPLE
HYDRAULIC SCHEMATIC EXAMPLE
CURRENT STANDARD
CURRENT STANDARD
HARNESS IDENTIFICATION CODE THIS EXAMPLE
INDICATES WIRE 135 IN HARNESS “AG”
WIRE
Switch As - Pressure (Back Up Alarm)
Valve Gp - Ball (Manual Loader Lowering Valve)
G
WIRE NUMBER IDENTIFICATION CODES
Screen
Valve Gp - Brake (Single Speed) (216/226/242/247/257)
HYDRAULIC SYMBOLS (ELECTRICAL)
CIRCUIT NUMBER
IDENTIFICATION
325-AG135 PK-14
CIRCUIT NUMBER
IDENTIFICATION
WIRE
COLOR
WIRE COLOR
WIRE GAUGE
325-PK
PREVIOUS STANDARD
WIRE
WIRE COLOR
B
325-PK-14
CIRCUIT NUMBER
IDENTIFICATION
WIRE GAUGE
A
(EXAMPLE VALVE)
(Dimensions: 34 inches x 24 inches)
Machine
Location
16 Page,
Part
Number
UENR3951 VOL 1 of 2
8
7
6
(25) VALVE GP
S-TURN RESOLVER BLOCK
(DRIVE PILOT)
E
5
(5) CYLINDER GP
LIFT (LEFT HAND)
LEFT
NEUTRAL
NEUTRAL
RIGHT
RACK
DUMP
RAISE
LOWER
3
2
AUXILIARY TOOLS
(6) CYLINDER GP
LIFT (RIGHT HAND)
293-5705 (216/226/247)
295-6951 (236)
329-4955 (242/257/259)
297-8699 (252)
P
T
2
3
1B
2A
(4) COUPLING
MALE
193-8334
(3) COUPLING
FEMALE
193-8335
2B
3A
(16) SCREEN
3B
(23) VALVE GP
CONTROL
336-1317 (216/226/247)
366-1319(236)
366-1320 (242/252/257/259)
4
4
(8) CYLINDER GP
TILT (RIGHT HAND)
293-5707 (216/226/247)
295-6953 (236/252)
329-4953 (242/257/259)
E
1A
1
1
TILT CYLINDERS
LIFT CYLINDERS
293-5706 (216/226/247)
295-6952 (236)
329-4955 (242/257/259)
297-8699 (252)
(20) VALVE GP
BALL
(MANUAL LOADER LOWERING VALVE
112-1817
IMPLEMENT PILOT VALVE
NEUTRAL
NEUTRAL
2
(7) CYLINDER GP
TILT (LEFT HAND)
293-5708 (216/226/247)
295-6954 (236/252)
329-4954 (242/257/259)
299-9119
DRIVE PILOT VALVE
FORWARD
3
(24) VALVE GP
IMPLEMENT PILOT CONTROL
(WITH FLOAT DETENT MAGNET
356-5008 (216/226/236/242/252)
356-5009 (247/257)
356-5010 (259)
REVERSE
4
1
195-6768
D
(17) SOLENOID
CONTROL VALVE (1 & 2)
358-5951
AA
F
C
E
D
G
F
C
D
P
E
(1) ACCUMULATOR
149-0686
T
(18) SWITCH AS
PRESSURE
(BACK UP ALARM)
192-0836
ML MR
CI
(10) MANIFOLD AS
DRAIN MANIFOLD
308-0421
HP
C
(21) VALVE GP
BRAKE
(SINGLE SPEED)
248-1268 (216/226/242/247/257)
233-7131 (236/252)
D
R
A
I
N
(Dimensions: 34 inches x 24 inches)
(11) MOTOR GP
FAN (STANDARD)
307-3036
(2) COOLER AS
RADIATOR
C
RJ
DL
T
280-8310 (226/247)
CO
280-8312 (236/242/252/257/259)
BB
280-7856 (236/252)
16 Page,
(9) FILTER GP
OIL
223-9974
280-8309 (216)
(12) MOTOR GP
SINGLE SPEED
(LEFT HAND)
280-7854 (216/226/242)
UENR3951 VOL 1 of 2
D
CC
289-6355 (247/257)
B A
L
Z
C
Z
L
SOS/
DIAGNOSTIC
PORT
(13) MOTOR GP
SINGLE SPEED
(RIGHT HAND)
280-7854 (216/226/242)
A B
280-7856 (236/252)
LEFT
MOTOR
T
RIGHT
MOTOR
P
289-6355 (247/257)
B
B
R
(1) VALVE GP
CHECK
123-4750
T1
EE
DD
MG A MB
B
Y
G1
G
BAFFLE
FF
B MB
R
A
SPEED
SENSING
FWD
FWD
(15) PUMP GP
SINGLE SPEED
307-3062 (216)
(19) TANK GP
HYDRAULIC
326-5781
307-3064 (226/247)
307-3070 (236/252)
LINE PATTERNS
Pressure Line
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
M
A
LR
LF
X3
X4
MA
MA
RF
RR
X4
X3
GG
HH
(14) PUMP GP
IMPLEMENT & CHARGE
269-9462 (216/226/247) (QUIET)
236-5106 (216/226/247) (STANDARD)
289-6358 (236/242/252/257/259) (QUIET)
238-7642 (236/242/252/257/259) (STANDARD)
PILOT CONTROL CIRCUIT
MAIN PUMP OUTPUT
TILT CYLINDER CONTROL CIRCUIT
SUPPLY LINE
BRAKE CONTROL CIRCUIT
LEFT HYDROSTATIC PUMP CIRCUIT
AUXILARY TOOLS CONTROL CIRCUIT
DRAIN / RETURN LINE
CHARGE SUPPLY PUMP CIRCUIT
RIGHT HYDROSTATIC PUMP CIRCUIT
LIFT CYLINDER CONTROL CIRCUIT
Pilot / Load Sensing Pressure
Drain / Return Lines
Component Group
CALLOUTS
Taps (Pressure, Sampling, Sensor - by letter)
YY
Callout Number
(Machine Location from
Component LocationsTable)
(52) VALVE GP - CONTROL
138-1234
Part Number
THIS SCHEMATIC IS FOR THE 216B3, 226B3, 236B3, 242B3, 247B3, 252B3, 2578B3, AND 259B3
SKID STEER LOADER, MULTI-TERRAIN LOADER, AND COMPACT TRACK LOADER HYDRAULIC SYSTEM
VOLUME 1 of 2: BASE MACHINES
MEDIA NUMBER UENR3951
PART NUMBER: 326-5540, CHANGE: 02, VERSION: (-)
Components are shown installed on a fully operable machine with the key and engine off, transmission shifter
in neutral and with parking brake set.
Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
7
6
5
4
3
Component
Name
2
1
A
UENR3951
February 2013
FLUID POWER SYMBOLS
Tap Locations
Pressure, Sampling, and Sensor
Tap
Number
Maain WorkTool System Pressure
BB
SOS
CC
Signal Pressure (VOLUME 1 only)
DD
EE
FF
GG
HH
Schematic
Location
Description
AA
BASIC COMPONENT SYMBOLS
MAIN
D-3
PUMP OR MOTOR
FLUID CONDITIONER
SPRING
CONTROL VALVES
VARIABILITY
SPRING
(ADJUSTABLE)
LINE RESTRICTION
(VARIABLE)
PRESSURE
COMPENSATION
RESTRICTION
LINE RESTRICTION
(FIXED)
AUX
PUMP
(2 - SECTION)
B-4
VOL 1.
Main System Pressure (Pump 1 Forward) (236/242/252)
B-6
Main System Pressure (Pump 1 Forward) (257/259)
D-6
Charge Pressure (236/242/252)
B-6
Charge Pressure (257/259)
D-6
Main System Pressure (Pump 2 Forward) (236/242/252)
B-6
Main System Pressure (Pump 2 Forward) (257/259)
D-6
Main System Pressure (Pump 2 Reverse) (236/242/252)
A-6
Main System Pressure (Pump 2 Reverse) (257/259)
C-6
Main System Pressure (Pump 1 Reverse) (236/242/252)
A-6
Main System Pressure (Pump 1 Reverse) (257/259)
C-6
ONE POSITION
HYDRAULIC
PNEUMATIC
ENERGY TRIANGLES
TWO POSITION
ATTACHMENT
VALVE PORTS
THREE POSITION
TWO - WAY
THREE - WAY
CONTROL VALVES
AB
LINE RESTRICTION
(VARIABLE & PRESSURE
COMPENSATED)
VALVES
VALVE ENVELOPES
FOUR - WAY
CHECK VALVES
A B
P T
Related Manuals
Description
PUMP
(VARIABLE & PRESSURE
COMPENSATED)
P T
NORMAL POSITION
SHIFTED POSITION
BASIC
SYMBOL
INFINITE POSITION
SPRING
LOADED
SHUTTLE
PILOT
CONTROLLED
Media Number
FLUID STORAGE RESERVOIRS
Parts Manual
Machine System
35
Specifications
UENR0249
Testing and Adjusting
UENR0250
216B3, 226B3, 236B3, 242B3, 247B3,
252B3, 257B3, and 259B3
Skid Steer Loader, Multi-terrain Loader,
and Compact Track Loader
Hydraulic System
Electrical System
Schematic: (Electrical System)
49
39
34
216B3:
JXM1961-2282
226B3:
MWD2399-3010
236B3:
A9H1480-1729
PRESSURE
TEMPERATURE
252B3:
TNK992-1161
257B3:
B7H894-1035
259B3:
YYZ1543-2037
SOLENOID
SOLENOID
OR MANUAL
SOLENOID
& PILOT
44
THERMAL
PUSH BUTTON
INTERNAL RETURN
DETENT
PEDAL
GAS CHARGED
SIMPLIFIED
LINES CROSSING
COMPLETE
FIXED
DISPLACEMENT
SINGLE ACTING
LINES JOINING
UNIDIRECTIONAL
BIDIRECTIONAL
BIDIRECTIONAL
DOUBLE ACTING
INTERNAL PASSAGEWAYS
INFINITE
POSITIONING
VARIABLE DISPLACEMENT
NON-COMPENSATED
UNIDIRECTIONAL
INTERNAL
SUPPLY PRESSURE
HYDRAULIC & PNEUMATIC CYLINDERS
HYDRAULIC MOTORS
VARIABLE DISPLACEMENT
NON-COMPENSATED
SPRING
REMOTE SUPPLY PRESSURE
CROSSING & JOINING LINES
HYDRAULIC PUMPS
42
SERVO
PILOT CONTROL SYMBOLS
RELEASED PRESSURE
FIXED
DISPLACEMENT
Volume 2 of 2: Hydraulic Options
3 POSITION
FLOW IN ONE
DIRECTION
PARALLEL
FLOW
CROSS
FLOW
56
© 2013 Caterpillar, All Rights Reserved
36
MACHINE - REAR VIEW
Description
32
HH
GG
VIEW OF AREA “B”
MACHINE - FRONT VIEW
(ROTATED FOR CLARITY)
55
CC
54
51
52
AA
FF
A
DD
B
VIEW OF AREA “A”
(ROTATED FOR CLARITY)
FLOW IN
EITHER
DIRECTION
Printed in U.S.A.
Component Locations (Volume 2)
33
2 POSITION
EE
ELECTRICAL SYMBOLS TABLE
Part
Machine Schematic
Number Location Location
Accumulator
149-0686
30
Coupling - 1/2"
345-5165
31
E-1
Cylinder Gp - Hydraulic Coupler (Left Hand)
192-2640
32
C-4
Cylinder Gp - Hydraulic Coupler (Right Hand)
192-2640
33
C-4
Cylinder Gp - Lift Left Hand (216/226/247)
293-5706
34
E-3
Cylinder Gp - Lift Left Hand (236)
295-6952
Cylinder Gp - Lift Left Hand (242/257/259)
329-4955
Cylinder Gp - Lift Left Hand (252)
297-8699
Cylinder Gp - Lift Right Hand (216/226/247)
293-5705
Cylinder Gp - Lift Right Hand (236)
295-6951
Cylinder Gp - Lift Right Hand (242/257/259)
329-4955
Cylinder Gp - Lift Right Hand (252)
297-8699
Cylinder Gp - Tilt Left Hand (216/226/247)
293-5708
Cylinder Gp - Tilt Left Hand (236/252)
295-6954
Cylinder Gp - Tilt Left Hand (242/257/259)
329-4954
Cylinder Gp - Tilt Right Hand (216/226/247)
293-5707
35
E-3
36
E-2
37
295-6953
Cylinder Gp - Tilt Right Hand (242/257/259)
329-4953
Motor Gp - A/C Compressor (226/247)
307-6115
38
B-3
Motor Gp - Fan (Demand)
258-2577
39
B-4
Motor Gp - Two Speed (Left Hand) (236/252)
280-7858
Motor Gp - Two Speed (Left Hand) (242)
307-3071
40
B-7
41
B-5
42
E-7
43
E-5
44
A-3
45
A-5
Motor Gp - Two Speed (Right Hand) (236/252)
280-7858
307-3073
Motor Gp - Two Speed Left Hand (257)
307-3052
Motor Gp - Two Speed Left Hand (259)
307-3080
Motor Gp - Two Speed Right Hand (257)
307-3052
Motor Gp - Two Speed Right Hand (259)
307-3080
Pump Gp - Implement, Charge, And Boost (226) (Quiet)
269-9465
Pump Gp - Implement, Charge, And Boost (226) (Standard)
225-9238
Pump Gp - Two Speed (236/252)
307-3068
Pump Gp - Two Speed (242)
341-7665
Pump Gp - Two Speed (257)
341-7642
Pump Gp - Two Speed (259)
341-7669
Screen
46
D-5
195-6768
47
D-1
Solenoid - Control Valve (1 & 2)
358-5951
48
D-1
Tank Gp - Hydraulic
326-5781
49
C-2
Valve Gp - Boost Flow (226/242/257/259)
359-7233
50
B-2
Valve Gp - Brake (Two Speed) (236/242/252)
293-6591
51
C-7
Valve Gp - Brake (Two Speed) (257/259)
293-6591
52
E-6
53
B-1
54
D-3
Valve Gp - Check
373-6965
Valve Gp - Control (216/226/247)
336-1317
Valve Gp - Control (236)
366-1319
Valve Gp - Control (242/252/257/259)
336-1320
Valve Gp - Diverter (Bucket Leveling) - Raise (216/226/247)
224-9418
Valve Gp - Diverter (Bucket Leveling) - Raise (236)
224-9408
Valve Gp - Diverter (Bucket Leveling) - Raise (242/252/257/259)
223-8418
Valve Gp - Hydraulic Coupler
233-7128
G
TRANSDUCER
(FLUID)
TRANSDUCER
(GAS / AIR)
GENERATOR
ELECTRIC MOTOR
PRESSURE SWITCH
PRESSURE SWITCH
(ADJUSTABLE)
TEMPERATURE
SWITCH
ELECTRICAL WIRE
ELECTRICAL SYMBOLS (ELECTRICAL)
PRESSURE
SWITCH
TEMPERATURE
SWITCH
30
48
MAIN HYDRAULICS - RIGHT SIDE VIEW
47
NOT
53
50
SHOWN
LEVEL
SWITCH
FLOW
SWITCH
WIRE NUMBER IDENTIFICATION CODES
ELECTRICAL SCHEMATIC EXAMPLE
HYDRAULIC SCHEMATIC EXAMPLE
CURRENT STANDARD
CURRENT STANDARD
HARNESS IDENTIFICATION CODE THIS EXAMPLE
INDICATES WIRE 135 IN HARNESS “AG”
WIRE
CIRCUIT NUMBER
IDENTIFICATION
325-AG135 PK-14
CIRCUIT NUMBER
IDENTIFICATION
WIRE
COLOR
WIRE COLOR
WIRE GAUGE
325-PK
PREVIOUS STANDARD
55
E-4
56
C-4
WIRE
WIRE COLOR
B
325-PK-14
38
M
E-2
Cylinder Gp - Tilt Right Hand (236/252)
Motor Gp - Two Speed (Right Hand) (242)
HYDRAULIC SYMBOLS (ELECTRICAL)
C-1
CIRCUIT NUMBER
IDENTIFICATION
WIRE GAUGE
A
(EXAMPLE VALVE)
(Dimensions: 34 inches x 24 inches)
37
GENERAL MANUAL
ACCUMULATORS
40
SOLENOID &
PILOT OR MANUAL
MANUAL SHUTOFF
SPRING LOADED
41
BIDIRECTIONAL
MANUAL CONTROL SYMBOLS
EXTERNAL RETURN
43
UNIDIRECTIONAL
COMBINATION CONTROLS
PUSH - PULL LEVER
247B3:
TSL852-945
FLOW
242B3:
SRS1066-1329
31
RETURN BELOW FLUID LEVEL
ROTATING SHAFTS
16 Page,
45
BB
RETURN ABOVE FLUID LEVEL
MEASUREMENT
UENR3951 VOL 2 of 2
46
UENR0254
PRESSURIZED
VENTED
7
6
5
4
3
2
1
TWO SPEED
(MODELS 257/259 )
(52) VALVE GP
BRAKE
(TWO SPEED)
248-6591 (257/259)
C1
C2
E
(42) MOTOR GP
TWO SPEED
(LEFT HAND)
307-3052 (257)
(43) MOTOR GP
TWO SPEED
(RIGHT HAND)
307-3052 (257)
P
307-3080 (259)
LEFT
MOTOR
307-3080 (259)
(35) CYLINDER GP
LIFT (RIGHT HAND)
293-5705 (216/226/247)
295-6951 (236)
329-4955 (242/257/259)
(34) CYLINDER GP
LIFT (LEFT HAND) 297-8699 (252)
TO DRAIN
MANIFOLD
Pp
T
BUCKET LEVELING
DIVERTER VALVE
ALL MODELS
LIFT CYLINDERS
293-5706 (216/226/247)
295-6952 (236)
329-4955 (242/257/259)
297-8699 (252)
A
RIGHT
MOTOR
Pp
B
P1
P1
P2
P2
FROM
CHARGE
FILTER
TO DRIVE
PILOT
TO DRAIN MANIFOLD
R
(55) VALVE GP
DIVERTER
(BUCKET LEVELING) RAISE
224-9418 (216/226/247)
224-9408 (236)
223-8418 (242/252/257/259)
FINAL
DRIVE
FINAL
DRIVE
Dr
Ps
DD
TO IMPLEMENT VALVE
T1
EE
MG A MB B Y
D
Ps
(31) COUPLING GP
1/2’’
345-5165
1B
2A
2B
3A
(47) SCREEN
3B
TO DRAIN MANIFOLD
SPEED
SENSING
195-6768
(54) VALVE GP
CONTROL
336-1317 (216/226/247)
366-1319(236)
366-1320 (242/252/257/259)
(46) PUMP GP
TWO SPEED
341-7642 (257)
341-7669 (259)
FWD
FWD
FROM HYSTAT PUMP
AUXILIARY TOOLS
1A
R
TILT CYLINDERS
E
FROM IMPLEMENT JOYSTICK
D
Dr
G1 G B MB A
(37) CYLINDER GP
TILT (RIGHT HAND)
293-5707 (216/226/247)
295-6953 (236/252)
329-4953 (242/257/259)
TO IMPLEMENT JOYSTICK
C
FF
(36) CYLINDER GP
TILT (LEFT HAND)
293-5708 (216/226/247)
295-6954 (236/252)
329-4954 (242/257/259)
M
D
(48) SOLENOID
CONTROL VALVE (1 & 2)
358-5951
(33) CYLINDER GP
AA
HYDRAULIC COUPLER
(RIGHT HAND)
192-2640
LR
LF
X3
X4
MA
MA
GG
HH
FROM DRIVE JOYSTICK
RF
RR
X4
X3
(32) CYLINDER GP
HYDRAULIC COUPLER HYDRAULIC
(LEFT HAND)
COUPLER
(ALL
MODELS)
192-2640
(30) ACCUMULATOR
149-0686
FROM DRIVE JOYSTICK
FROM IMPLEMENT JOYSTICK
(51) VALVE GP
BRAKE
(TWO SPEED)
248-6591 (236/242/252)
C
C2
TWO SPEED
(MODELS 236/242/252 )
(Dimensions: 34 inches x 24 inches)
16 Page,
UENR3951 VOL 2 of 2
(40) MOTOR GP
TWO SPEED
(LEFT HAND)
280-7858 (236/252)
P
(41) MOTOR GP
TWO SPEED
(RIGHT HAND)
280-7858 (236/252)
P
C2
TO DRAIN
MANIFOLD
TO DRAIN
MANIFOLD
307-3071 (242)
307-3073 (242)
A
B
X
L
L
Z
Z
X
B
T
TO DRAIN
MANIFOLD
C
(56) VALVE GP
HYDRAULIC COUPLER
233-7128
BAFFLE
FROM DRAIN MANIFOLD
(39) MOTOR GP
FAN (DEMAND)
258-2577
T
LEFT
MOTOR
S1
S2
C1
(49) TANK GP
HYDRAULIC
326-5781
C1
AC
COMPRESSOR
MOTOR
TO DRAIN
T
TO DRAIN
MANIFOLD
MANIFOLD
DEMAND
FAN
A
(53) VALVE GP
CHECK
373-6965
P
RIGHT
MOTOR
AUX
To Cooler
AUXILIARY
HIGH FLOW 226, 242, 257, 259
B
To Filter
TO DRIVE
PILOT
TO DRAIN
MANIFOLD
R
DD
TO IMPLEMENT VALVE
T1
FROM CHARGE
FILTER
EE
MG A MB B Y
BB
SOS/
DIAGNOSTIC
PORT
(38) MOTOR GP
A/C COMPRESSOR
307-6115 (226/247)
FF
G1 G B MB
A
R
(44) PUMP GP
IMPLEMENT & CHARGE
269-9465 (226) (QUIET)
225-9238 (226) (STANDARD)
SPEED
SENSING
FWD
FWD
(45) PUMP GP
TWO SPEED
307-3068 (236/252)
341-7665(242)
M
A
LR
LF
X3
X4
FROM DRIVE JOYSTICK
MA
MA
GG
HH
RF
RR
X4
X3
LINE PATTERNS
Pressure Line
HYDRAULIC CIRCUIT COLOR DESCRIPTIONS
MAIN PUMP OUTPUT
TILT CYLINDER CONTROL CIRCUIT
SUPPLY LINE
BRAKE CONTROL CIRCUIT
LEFT HYDROSTATIC PUMP CIRCUIT
AUXILARY TOOLS AND HIGH FLOW CONTROL CIRCUIT
DRAIN / RETURN LINE
CHARGE SUPPLY PUMP CIRCUIT
QUICK COUPLER CIRCUIT
RIGHT HYDROSTATIC PUMP CIRCUIT
LIFT CYLINDER CONTROL CIRCUIT
Pilot / Load Sensing Pressure
Drain / Return Lines
Component Group
CALLOUTS
Taps (Pressure, Sampling, Sensor - by letter)
YY
Callout Number
(Machine Location from
Component LocationsTable)
(52) VALVE GP - CONTROL
138-1234
Part Number
6
FROM DRIVE JOYSTICK
5
Component
Name
THIS SCHEMATIC IS FOR THE 216B3, 226B3, 236B3, 242B3, 247B3, 252B3, 2578B3, AND 259B3
SKID STEER LOADER, MULTI-TERRAIN LOADER, AND COMPACT TRACK LOADER HYDRAULIC SYSTEM
VOLUME 2 of 2: HYDRAULIC OPTIONS
MEDIA NUMBER UENR3951
PART NUMBER: 326-5540, CHANGE: 02, VERSION: (-)
Components are shown installed on a fully operable machine with the key and engine off, transmission shifter
in neutral and with parking brake set.
Refer to the appropriate Service Manual for Troubleshooting, Specifications and Systems Operations.
7
B
(50) VALVE GP
BOOST FLOW
359-7233 (226/242/252/257/259)
4
3
2
1
A