TR - 21
Parts, Safety, Operation
& Maintenance
Form No. M1047-POMS
Revision 2
January 2002
Page 1
TR - 21 Table of Contents
Page 2
Forward
3
Technical Specifications
4
Safety
S1
Operation
O1
Installation
I1
Maintenance
M1
Troubleshooting
T1
Flow Meter Testing
F1
Parts
P1
Compactor Build Sheet
P7
TR - 21 Forward
FORWARD
You have just acquired a TRAMAC TRAPAC boom mounted vibratory plate compactor. Thank
you for your choice. This is the finest equipment of this kind on the market. We are sure it will
meet your requirements.
This booklet is to provide operation and service instructions necessary for safe and efficient use
of the TRAMAC standard model compactor. The use and maintenance of these compactors does
not take much time, however, the user should carefully study the following instructions to avoid
any damage to the attachment and its carrier. Special attention should be given to the section
safety precautions. Should you have any problems in the future, please call your TRAMAC distributor. He will be able to help you promptly.
This manual contains information about all the options available on TR-21 compactor, such as:
- Flow control version
- Standard motor (A, B, C) version
- Top mount version
- Side plate version,
as well as all the combinations of these options.
Caution
Always use original TRAMAC parts and do not attempt to modify the installation
and/or flow setting without the approval of your distributor or your warranty will
be voided.
Page 3
TR - 21 Technical Specifications
Technical specifications
Specifications
TR - 21TM
Centrifugal force classification (lbs)
15000-21500
Centrifugal force classification (kgs)
6804-9752
Frequency (vpm)
2000-2300
Carrier weight (US tons)
10-30
Carrier weight (metric tons)
9-27
Unit weight (lbs)
* 1500
Unit weight (kgs)
* 680
Height (in)
* 26
Height (mm)
* 660
Width (in)
23.5
Width (mm)
Base plate dimensions (in)
597
23.5 x 32
Base plate dimensions (mm)
597 x 813
* Does not include bracket cap
Compactor/carrier requirements
Model
TR-21
Carrier
Carrier min.
Compactor motor
Maximum compactor
Max. compactor
flow range hyd. pressure controlled flow range return line pressure (*) operating pressure
Flow
Control
option
30-65 gpm
A-motor
B-motor
2500 psi
30-34 gpm
250 psi
2300 psi
113-246 lpm 172 bar
113-128 lpm
17 bar
158 bar
30-34 gpm
2500 psi
N/A
250 psi
2300 psi
113-128 lpm 172 bar
N/A
17 bar
158 bar
40-44 gpm
N/A
250 psi
2300 psi
N/A
17 bar
158 bar
2500 psi
151-166 lpm 172 bar
* WARNING: If the compactor return line pressure exceeds 250 psi (17.2 bar) a 1/4” drain line must be
connected from the compactor motor housing drain port to the carrier hydraulic reservoir.
If you are unable to obtain the proper hydraulic requirements when installing or adjusting the carrier hydraulic
circuit, contact TRAMAC product support for technical support.
Page 4
TR - 21 Safety
SAFETY PRECAUTIONS
Caution
Carefully read the following safety precautions. Make sure you fully understand them. Failure
to follow a safety warning or recognize and rectify a safety hazard, could result in injury or
death to you or others around you.
In general, always use common sense in your work habits and keep your tools and equipment in
good operating condition.
Use trained personnel
Allow only trained personnel to operate or service this equipment. Read and understand all
safety precautions listed in the TRAMAC manual and in the CARRIER manual.
Caution
Flying objects or high pressure fluid hazards
Do not operate TRAMAC equipment with personnel in the immediate proximity of the
equipment because of possible flying objects or high pressure fluid hazards. The operator’s
compartment should have the necessary protective guards to prevent entry of flying or
Caution falling debris.
Wear correct safety protection
Verify that all personnel wear protective headgear, eye protection, adequate ear protection and steel toe work
boots. In dusty conditions, wear a respirator to protect against dust. Do not wear loose fitting clothing or jewelry while working on the machine.
Pay attention to your hands when mounting the compactor
Keep your fingers clear when inserting mounting pins. Do not use your fingers to “feel” pin alignment. Unexpected boom or equipment movement could result in painful injury and possible loss of your fingers. Instruct
the operator to touch the controls only when instructed.
Relieve system pressure prior to working on equipment
Escaping fluid under pressure can penetrate the skin causing serious injury.
Caution
Caution
To avoid any risk, be sure to relieve the pressure before disconnecting hydraulic lines.
Consult the operator’s manual of the carrier for the proper procedure for relieving pressure.
Page S1
TR - 21 Safety
Important checkpoints before operation:
1. Tighten all hydraulic fittings before applying pressure.
2. Keep hands and body away from pinholes and nozzles which eject fluid under high pressure.
3. Do not use your hands to search for leaks. Use a piece of paper.
Operation and maintenance precautions
- Never activate the compactor unless the operator is in full control of the carrier and is seated in the operator’s seat.
- Do not operate the compactor above 180º F (82º C) hydraulic oil temperature.
- Do not make any alterations to the compactor without authorization from Tramac Product Support department.
- Make frequent visual inspections of fasteners, attaching pins, hoses and rubber isolators.
- Use caution when torquing fasteners, do not overtorque. Adhere to SAE torque specifications only. A previously overstressed part may fail later.
- The major compactor components are heavy. Always use an adequate lifting device.
- Never mount the compactor on a carrier that cannot adequately handle the compactor weight.
- For nighttime operation, the carrier should offer adequate lighting for safe operation during compacting,
repositioning or transporting (European harmonized standard EN-500-1 paragraph 5.1).
- Never use the compactor as part of a lifting device. Additional weight could cause the carrier to tip over or
cause damage to the compactor components.
- Be cautious of flying metal particles when striking any hardened parts with a hand held tool.
- Operate the compactor aware of the effects the vibrations may have on trench walls and never operate the
compactor in a trench with personnel working nearby in the trench at the same time.
- Never service or work on the compactor in an open trench or other unsafe area.
- Always clean up oil spills.
- Do not over compact near buried utilities or foundations, serious damage to utilities or foundations could
result.
- Keep personnel clear of the full range of swing, reach, height, depth of carrier boom while operating or positioning the compactor. During standby periods, always lower carrier boom so the compactor rests firmly on
the ground and turn off the carrier engine.
- Make sure that a window or protective screen is in place on the carrier to fully protect the operator against
flying objects.
Page S2
TR - 21 Safety
Maintain safety decals
Always replace any safety or warning decals that become damaged or illegible. Replace all safety or warning
decals when repainting the equipment. These decals are available from your TRAMAC dealer or from TRAMAC.
Page S3
TR - 21 Operation
OPERATION
To preserve the life of the compactor and obtain maximum productivity, we urge you to read the following
operating and maintenance instructions.
Standard operating instructions of the boom mounted vibratory plate compactor
Cold weather pre-starting
Start up the carrier and circulate the hydraulic oil to warm it up before starting the compactor.
Starting the compactor
Make sure that the base plate is fully in contact with the soil and down-pressure from the carrier
boom has been applied before activating the compactor.
Base plate position
When compacting, keep the base plate parallel to the ground.
Stopping the operation
When compaction is complete, shut off hydraulic motor before lifting it from the ground.
Sensitive procedures
Make sure to properly adjust the down pressure force.
Down pressure force which is too light will weaken the
contact between the plate and the material. Consequently, the vibrations will not adequately transmit
through the soil (producing low efficiency). Also, when
insufficient down pressure is applied, the vibrations
created by the compactor, instead of being sent into
the soil, will be transmitted up to the boom and into the
carrier causing excessive rattling and shaking which
can lead to premature wear on the carrier. If this rattling occurs, apply a little more down pressure.
On the other hand, it is necessary to find a medium
between not enough and too much down pressure.
Excessive down pressure force will stretch the rubber
isolators beyond their limits and shorten their life.
Page O1
TR - 21 Operation
The shear of the rubber isolators should not exceed 1 - 1/2” (38.1 mm)
Avoid metal to metal contact
Caution
Avoid a metal to metal contact between the base plate and the upper bracket assembly.
This occurs with too much down pressure. The sound it makes is a warning to ease up on
down pressure.
Avoid “ironing,” “smoothing” or “side-loading.”
“Ironing,” “smoothing” or “side-loading is not recommended as it can be detrimental to the
life of the rubber isolators.
Caution
Operating instructions for compaction
Number of passes
Best results are usually obtained with two passes. For the initial pass, the time required for each
position is only as long as visible compaction is apparent. The second pass should be done with
greater down pressure force. Our experience has shown that within 20 - 30 seconds the maximum
compaction effect will be achieved for each placement. Additional compaction time may be detrimenttal both, to the compactor and to the compactor efficiency, since the soil will escape laterally creating
holes.
Depth of layers
TRAMAC compactors can achieve 95% modified Proctor density in lifts whose maximum
depth can range up to 48” (1219.2 mm).
The above figures are theoretical and the best results will be obtained by making initial
tests to determine the proper lift depth and speed to achieve the required density.
Caution
Variables affecting the operation
Soil type
As a general rule, the finer the soil particles are, the more difficult the compaction is.
Moisture content
The moisture acts as a lubricant between soil particles. However, too much moisture will saturate the
soil with water taking up space which would normally be filled by soil particles.
Frequency of the compactor
The best frequency of the compactor depends on two conditions:
- The lower the frequency (i.e. the lower the rpm of the motor), the lower the centrifugal force
applied to the soil.
- Each soil type has its own resonant frequency for which the efficiency is the best when the
centrifugal force is fixed.
Page O2
TR - 21 Operation
Down pressure
Applied by the carrier boom, down pressure keeps the compactor in contact with the soil and allows
a good energy transfer to the soil. Down pressure is also responsible for a part of the compaction.
COMPACTION
What is compaction?
Compaction is a process of applying energy to loose soil, in order to consolidate it and remove any void
spaces. With compaction, soil particles are rearranged closer to each other and the air or water trapped
between these particles is forced out. This increases the density and consequently its load - bearing capacity.
Three major methods are used to compact soil:
STATIC FORCE: Compaction is achieved using a heavy machine (for example, a static roller), whose weight
squeezes soil particles together without the presence of vibratory motion.
IMPACT FORCE: Compaction comes from a ramming shoe alternately striking and leaving the ground at a
high speed, literally ‘kneading’ the ground to increase its density.
VIBRATION: Compaction is achieved by applying a high frequency vibration to the soil.
Page O3
TR - 21 Operation
Two main factors govern the extent to which the soil can be compacted:
- The soil (its nature, mechanical properties and moisture content)
- The method of compaction
The soil
Types of soil
Soils are divided into 5 basic types which break into two groups, cohesive and non - cohesive
materials (see tables below). The cohesive soils (any material with a high clay content) have the
characteristic of sticking together.
* AASHTO stands for American Association of State Highways and Transportation Officials.
* ASTM stands for American Society of Testing and Materials.
These different soils have various mechanical properties, which require different compaction processes and
induce different results.
Page O4
TR - 21 Operation
Moisture content
In acting as a lubricant between soil particles, moisture is a critical factor in the compactibility of a soil.
- Too little moisture will not allow soil particles to move into a dense arrangement.
- Too much moisture will saturate a soil, taking up space which would normally be filled by soil particles.
Page O5
TR - 21 Operation
Vibratory compaction
Methods of compaction according to soils
Granular soils are best compacted by vibration. This is because
the vibration action reduces the frictional forces at the contact
surfaces, thus allowing the particles to move freely under their
own weight. This settling action and repositioning of particles is
known as vibratory compaction. All the air voids that were previously present in the soil mass are now replaced by solidly
packed soil.
Cohesive soils are best compacted by impact force.
Thus, a combination of impact force and vibration is needed and TRAMAC compactors combine static weight
with vibration to achieve compaction.
Page O6
TR - 21 Operation
The vibration method
The function of TRAMAC compactors is based on the use of vibrations in combination with static down pressure force to achieve compaction.
The creation of vibrations
The heart of each compactor is an eccentric shaft which produces the vibratory action. The eccentric shaft is a body which
rotates around any axis other than one at its center of mass. As
the eccentric shaft rotates, it exerts an outward force (the centrifugal force), which is directed in a 360º pattern. This enables
the compactor to stay in the same spot.
The total vertical distance that the vibrating base plate travels is called the amplitude. It is a direct function of
the applied weight and also depends on the soil. The frequency and amplitude of a machine will predetermine its most effective application.
The transmission of vibrations
The compaction effort is measured by the dynamic force generated, which depends on the frequency amplitude, the properties of the soil, the down pressure of the carrier boom, the weight of the compactor, and
especially the centrifugal force.
NOTE: The less the vibrations are transmitted to the carrier, the more efficient the compaction will be. Rubber
isolators are used to isolate the main frame from the vibrating plate.
Page O7
TR - 21 Operation
The soil reactions
Each load cycle of the vibratory compactor generates a stress wave which decreases intensity as it travels
further from the vibrating plate. Each wave characteristic is dependent upon the properties of the soil. Various
soils will react differently when subjected to vibration (see table below).
The purpose of vibration is to set the soil particles into a state of motion almost as fluid. The soil is broken
down and subjected to shear between the particles as the material is gradually rearranged during compaction. The movement of soil will be greatest when the vibratory plate is operating closest to the natural frequency of the vibrator - soil system.
Note: Many parameters are involved in the efficiency of the compaction of a given soil type and
TRAMAC compactors are designed and built to adapt to most of them. There is no formula to calculate production of the compactor. After a short trial you will determine the necessary depth of lifts,
down pressure applied by the carrier, oil flow supplied to the compactor and duration of compactor
on the same spot to achieve the best efficiency.
Operating instructions when used as a pile driver
The compactor may be used to drive piles or posts. In this case, an adapter assembly must be devised and
attached to the compactor.
Caution
Do not weld the adapter directly to the base plate. When welding, excessive heat may
distort the eccentric housing and you may permanently damage the unit. The base plate
has been specially drilled to secure such adapter assemblies.
When operating, make sure that the post or the pile is properly secured to the adapter. For example, cut a
hole in the pile and, with a chain or steel cable bind it securely to the adapter.
Make sure that all precautions have been taken when using the compactor. When moving
the pile or the post, conditions may be very dangerous for surrounding workers.
Caution
Page O8
TR - 21 Installation
FLOW CONTROL VALVE
TYPICAL HYDRAULIC HOOK UP
CARRIER PUMP
CARRIER AND/OR
TRAMAC FILTER
RESERVOIR
CARRIER VALVEBANK
TRAMAC FC VALVE
CARRIER SERVICE
SPOOL
P
T
EF
COMPACTOR
CARRIER COOLER
CF
OPTIONAL DRAIN LINE
COMPACTOR INSTALLATION
If it is a top mount compactor, attach bracket cap to the compactor upper mounting frame, install mounting
bolts, apply LOCTITE # 271 THREADLOCKER or equivalent to bolt threads, install nuts and torque to specifications. Mount compactor to carrier. Start the carrier and rotate compactor with the bucket circuit to the fully
extended OUT position. Measure hose length required to connect compactor to the carrier.
Hose specifications must be sufficient to withstand the compactor maximum rated
hydraulic operating pressure.
Caution
Page I1
TR - 21 Installation
Connect one compactor hose to the carrier HP SUPPLY connection. Connect the other compactor hose to
the carrier LP RETURN connection.
If flow control present, connect compactor HP inlet hose to the FLOW CONTROL VALVE PORT STAMPED
“P” and connect the opposite hose end to carrier HP SUPPLY connection. Connect compactor LP outlet hose
to FLOW CONTROL VALVE PORT STAMPED “T” and connect the opposite end to carrier LP RETURN connection.
Start carrier and rotate compactor with the bucket circuit to the full extended OUT and full retracted IN position and check for unobstructed hose movement.
A one-way check valve must be installed between the carrier and the compactor return hose
on double acting two-way circuits. This will prevent accidental reverse of the hydraulic flow
Caution to the compactor motor.
Check the eccentric housing for correct EP 80-90 oil level.
Page I2
TR - 21 Maintenance
MAINTENANCE INSTRUCTIONS
DAILY MAINTENANCE
Hydraulic motor and eccentric housing
Check the motor and housing for oil leaks.
Mounting
Check compactor bracket cap attachment bolts/nuts, carrier dipperstick attachment pins/bushings
and quick-attach devices for proper fit to the compactor. Make sure that the pin retainers are secured
in place. Hand lubricate pins and bushings with grease.
Hydraulic fittings and hoses
Check all hoses for damage and connections for leaks.
Rubber isolators
Check the rubber isolators for tightness and damage.
NEVER OPERATE THE COMPACTOR WITH ANY LOOSE OR DAMAGED RUBBER ISOLATORS!
Page M1
TR - 21 Maintenance
PERIODIC MAINTENANCE
NOTE: TRAMAC compactor eccentric shaft bearings do not have grease fittings that require frequent lubrication. The eccentric shaft bearings are automatically lubricated by splash lubricating EP 80 - 90 gear oil.
Oil level
The oil level should be checked weekly or every 40 operating hours. To check, place the compactor on a
level surface. Clean dirt from the eccentric housing lower DRAIN plug area. Remove DRAIN plug and check
to see if oil level is showing at the bottom of the eccentric housing lower drain hole. If oil level is low, clean
dirt from the eccentric housing upper VENT/FILL plug. Remove the upper eccentric housing VENT/FILL plug
and add only enough EP 80 - 90 gear oil until it appears at the bottom of the drain hole, reinstall both plugs.
CAUTION: Do not overfill the eccentric housing. Too much oil can cause excessive “drag” on the
eccentric shaft and overload the compactor motor and carrier hydraulic system. CAUTION: If the
eccentric housing gear oil level is found substantially overfilled, it is an indication the compactor
hydraulic motor seal has failed and allowing carrier hydraulic oil to transfer into the eccentric housing. Do not continue to operate the compactor until the defective motor seal or complete motor has
been replaced. The eccentric housing must be drained and serviced with new EP 80 - 90 gear oil.
Gear oil change
After the first 100 hours from the initial installation, the factory fill eccentric housing gear oil should be
changed (and every 6 months thereafter). To drain gear oil, clean dirt from the eccentric housing lower
DRAIN plug and eccentric housing upper VENT/FILL plug and remove both plugs. Tilt compactor and drain
gear oil out the lower drain hole into a suitable container. CAUTION: Gear oil should be examined for
metal contamination. If metal contamination is found, flush the eccentric housing with clean solvent before
refilling with new gear oil. If not, the eccentric shaft bearings may be damaged. Refill the compactor with new
EP 80 - 90 gear oil and reinstall both plugs.
Page M2
TR - 21 Troubleshooting
Hydraulic circuit
Like any hydraulic machine, it is important to verify that the oil flow delivered by the carrier conforms to the
flow requirements of the compactor. Refer to the manual of the carrier for proper maintenance of the carrier,
i.e. changing of the filter element, checking of the flow delivered by the carrier to the attachment, checking of
relief valve setting, etc.
Caution
Proper flow is very important because:
- If flow supplied to the compactor exceeds the range of the compactor model used, the
bearings and motor life will be shortened.
- If flow supplied to the compactor is under the range of the compactor model used, the
compactor will vibrate erratically and may damage the boom or the boom cylinders of the
carrier.
Hydraulic oil
Contaminated hydraulic oil may damage both your TRAMAC attachment and the hydraulic system of the carrier. Make sure to check the filter periodically and to change its cartridges when needed. Take special care to
keep all hose ends and couplers clean and free of dirt when changing attachment.
Caution
Page T1
Oil temperature plays an important role as excessively hot oil increases internal leakage
which then lowers efficiency and damages the seals.
TR - 21 Troubleshooting
TECHNICAL PROBLEMS
Some of the following checks must be performed by a skilled technician. Contact the
service department of your TRAMAC dealer.
Caution
COMPACTOR DOES NOT VIBRATE
PROBABLE CAUSE
SOLUTION
PUMP IN THE CARRIER
CHECK THE PUMP WITH A FLOW METER.
REPAIR OR REPLACE IF NECESSARY.
RELIEF VALVE IN THE CARRIER CHECK THE RELIEF VALVE PRESSURE SETTING.
ADJUST, REPAIR OR REPLACE IF NECESSARY.
FLOW CONTROL VALVE IN THE
COMPACTOR CIRCUIT
WITH A FLOW METER, CHECK THE COMPACTOR
MOTOR FLOW.
HYDRAULIC MOTOR
REMOVE MOTOR AND CHECK FOR STRIPPED
MOTOR SLINES OR STRIPPED ECCENTRIC SHAFT
SPLINES.
ECCENTRIC SHAFT BEARINGS
REMOVE MOTOR AND TURN ECCENTRIC SHAFT BY
HAND. THE BEARINGS ARE GOOD IF IT TURNS
SMOOTHLY. IF IT TURNS HARD OR DOES NOT TURN
AT ALL, BOTH BEARINGS MUST BE INSPECTED FOR
DAMAGE.
HOSE CONNECTIONS
INSURE THAT HOSES ARE CONNECTED TO THE
PROPER PARTS. MAKE SURE THAT THE BALL
SHUT-OFF VALVES OR QUICK COUPLERS ARE OPEN
AND NOT DEFECTIVE.
COMPACTOR VIBRATES ERRATICALLY
PROBABLE CAUSE
SOLUTION
LOW FLOW
CHECK CARIER HP CIRCUIT FLOW WITH A FLOW
METER AND ADJUST/REPAIR AS NECESSARY. IF
APPLICABLE, CHECK HP FLOW FROM THE COMPACTOR
FLOW CONTROL VALVE PORT CF TO THE COMPACTOR
MOTOR AND REPAIR AS NECESSARY.
BROKEN SHOCK MOUNTS
VISUALLY CHECK RUBBER ISOLATORS AND REPLACE
AS NECESSARY.
MOUNTING PINS/BUSHINGS CHECK MOUNTING PINS/BUSHINGS FOR PROPER SIZE
LOOSE
OR EXCESS WEAR. REPLACE AS NECESSARY.
Page T2
TR - 21 Troubleshooting
EXCESSIVE OIL LEAK AT VENT/FILL PLUG
PROBABLE CAUSE
SOLUTION
MOTOR SEAL FAILURE IF THERE IS HYDRAULIC OIL IN THE ECCENTRIC
HOUSING, REMOVE MOTOR AND REPLACE SHAFT
SEAL OR REPLACE COMPLETE MOTOR ASSEMBLY.
CHECK MOTOR RETURN CIRCUIT TO THE CARRIER
RESERVOIR FOR HIGH BACK PRESSURE
OBSTRUCTION.
BEARING FAILURE
PROBABLE CAUSE
SOLUTION
HIGH FLOW
EXCESSIVE FLOW CAN CAUSE MOTOR TO SPEED UP
AND DAMAGE THE BEARINGS.
SEE PROCEDURE "HOW TO CHECK FLOW TO MOTOR."
OIL LEVEL LOW
CHECK OIL LEVEL IN ECCENTRIC HOUSING AND REFILL
AS NECESSARY. THE FULL MARK IS THE LOWER
ECCENTRIC HOUSING DRAIN PLUG HOLE.
CONTAMINATED OIL
CHECK OIL IN ECCENTRIC HOUSING FOR DARK, DIRTY
OIL OR METAL IN IT. DRAIN OIL, CLEAN ECCENTRIC
HOUSING AND REFILL WITH CLEAN OIL.
LOOSE BOLTS
PROBABLE CAUSE
Page T3
SOLUTION
BOLTS NOT TORQUED TO
PROPER SPECIFICATIONS
RETORQUE BOLTS
LOCTITE NOT USED
USE LOCTITE # 271 THREAD LOCKER OR EQUIVALENT
TR - 21 Troubleshooting
Eccentric shaft bearing removal and installation
TO REMOVE: Drain gear oil out of the eccentric housing and remove hydraulic motor. Remove cap screws
from bearing housing. NOTE: The bearing housing is secured to the eccentric housing with silicone “gasketing” sealant. Two 3/4” NC threaded jacking holes are provided in the bearing housing to aid in removal. Install
two 3/4” NC x 1 - 1/2” (or 3/4” NC x 1 - 1/4”) cap screws into the jacking holes and tighten until the bearing
housing is free from the eccentric housing. Remove snap ring from the eccentric shaft and slide out shaft
from the bearing housing. Bearing can be pressed out of the housing with a standard press.
TO INSTALL: Clean all parts before assembling. Press bearing into bearing housing. Insert SPLINE end of
eccentric shaft into bearing housing and install snap ring on the shaft. Lubricate bearing with gear oil. Apply a
generous bead of ULTRA BLUE RTV SILICONE LOCTITE # 587 “gasketing” sealant or equivalent around
bearing housing mounting surface and install on eccentric housing. Clean bearing housing mounting cap
screws and apply LOCTITE # 271 THREADLOCKER or equivalent to cap screws, install and torque to specifications. Press bearing into bearing housing. Lubricate bearing with gear oil. Apply a generous bead of
ULTRA BLUE RTV SILICONE LOCTITE # 587 “gasketing” sealant or equivalent around bearing housing
mounting surface and install on eccentric housing. Clean bearing housing mounting cap screws and apply
LOCTITE # 271 THREADLOCKER or equivalent to cap screws, install and torque to specifications. NOTE:
Make sure the eccentric shaft turns freely without binding. Install hydraulic motor and refill eccentric housing
with gear oil.
Rubber isolator removal and installation
TO REMOVE: To remove one rubber isolator, remove 8 nuts and cap screws from upper mounting frame and
eccentric housing. Pry and tap the rubber isolator until it is removed. To remove all four rubber isolators, support the upper mounting assembly with a suitable hoist, forklift, crane or carrier and remove all 32 nuts and
cap screws. Pry and tap the rubber isolators to remove.
TO INSTALL: Position rubber isolator(s) in between the upper mounting frame and eccentric housing, align
cap screw holes, install cap screws. Clean nut and cap screw threads, apply LOCTITE # 271 THREADLOCKER or equivalent to cap screws and torque to specifications.
Page T4
TR - 21 Flow Meter Testing
FLOW METER TEST PROCEDURE
How to check the carrier hydraulic circuit
Mount a flow meter in place of the compactor. Also mount a low pressure (0 - 600 psi) gauge on the outlet of
the flow meter in order to test the back pressure in the return circuit. With the flow meter in place, activate the
circuit and bring the machine up to operating temperature 120º F - 130º F (49º C - 54º C). Do not test the
machine cold.
WARNING: If the control valve is equipped with a solenoid, switch on the solenoid before starting the
engine to avoid damages to the flow meter. Do not switch the solenoid on or off when the engine is
running. Adjust the flow output to match the requirements of the compactor.
Page F1
TR - 21 Flow Meter Testing
After the flow has been adjusted, load flow meter to the compactor operating pressure value plus 600 psi
(27.6 bar). If necessary, readjust flow to keep the compactor flow value constant for pressure varying
between 1000 psi (69 bar) and compactor operating pressure value (see TECHNICAL SPECIFICATIONS)
plus 600 psi (27.6 bar). Mount the low pressure (0 - 600 psi) gauge on the flow meter outlet to check the
return oil back pressure.
WARNING: If the return line pressure exceeds 250 psi (17.2 bar), a 1/4” drain line must be connected
from the compactor motor housing drain port to the carrier hydraulic reservoir.
If you are unable to obtain the proper hydraulic requirements when installing or adjusting the carreir hydraulic
circuit, contact TRAMAC product support for technical support.
How to check FC flow to motor
Disconnect the hose from the FC flow control valve port stamped CF. Connect this hose to the IN port of the
flow meter. Connect a hose from flow meter OUTLET to the FC valve tee fitting stamped “T”. With the flow
meter in place, activate circuit and bring the carrier hydraulic oil up to operating temperature 120º F - 130º F
(49º C - 54º C). Do not test the flow with cold oil.
WARNING: If the control valve is equipped with a solenoid, switch on the solenoid before starting the
engine to avoid damages to the flow meter. Do not switch the solenoid on or off when the engine is
running. Adjust the flow output to match the requirements of the compactor.
CARRIER PUMP
CARRIER AND/OR
TRAMAC FILTER
RESERVOIR
CARRIER VALVEBANK
TRAMAC FC VALVE
CARRIER SERVICE
SPOOL
P
T
EF
CARRIER COOLER
CF
IN
OUT
FLOW METER
Page F2
TR - 21 Flow Meter Testing
Load the flow meter to 2300 psi (159 bars) and observe GPM (LPM) output. The flow range should be within
the specifications. If the flow reads too low or too high, remove and inspect the flow control cartridge for damaged or missing external o-rings, missing orifice or orifice retaining snap ring. NOTE: Flow control cartridges
are non-adjustable, however flow can be varied by changing the orifice size (make sure that the proper orifice
is in place). Replacement of the cartridge will be necessary if replaced external o-rings, orifice and/or snap
ring, do not correct the flow to specifications.
FC FLOW CONTROL VALVES
ORIFICE-VARIABLE CARTRIDGE FC 45
NON-ADJUSTABLE CARTRIDGE FC-65
NON-ADJUSTABLE CARTRIDGE FC-125
(Make sure that FC-125 is set to 3900 psi
when you order)
Page F3
TR - 21
Page Left Blank Intentionally
Page F4
TR - 21 Parts
Page P1
TR - 21 Parts
Item
Part Number
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
588 - 801 588 - 801 588 - 207 588 - 207 PAC - 6
588 - 208 PAC - 87
PAC - 22
PAC - 8
PAC - 3
PAC - 4
PAC - 203
588 - 801 PAC - 204
588 - 801 PAC - 205
588 - 801 PAC - 206
2082 - 6S
SFV - 06
PAC - 23
21
09
11
05
01
10
06
01
Qty.
1
1
1
1
2
1
4
32
1
4
4
2
2
12
12
2
4
2
1
1
32
DESCRIPTION
Upper frame
Lower frame
Rear cap (bearing housing)
Front cap (motor side)(bearing housing)
Bearing
Eccentric shaft
Shock absorber
1/2" NC x 2" lg Cap screw gr. 8
Snap ring
1/2" NC x 1-1/2" lg Cap screw gr. 8
1/2" Flat washer
1/2" NC x 1" lg Cap screw gr. 8
Flat washer
7/8" NF x 2-1/2" lg Cap screw gr. 8
Flat washer
3/4" NC x 1-1/4" lg Cap screw gr. 8
Flat washer
3/4" NC x 1-1/2" lg Cap screw gr. 8
Pipe plug
Vent plug
1/2" NC nut
Page P2
TR - 21 Parts
ARRANGEMENT WITHOUT FLOW CONTROL VALVE
Page P3
TR - 21 Parts
Item
Part Number
1
2
3
4
5
2042 - 16 - 16S
960955
960956
2062 - 16 - 12S
M - 50A
M - 50B
2082 - 4S
391 - 2883 - 119
6
7
Qty.
2
1
1
3
1
1
1
1
DESCRIPTION
Bulk head
Low pressure hose
High pressure hose
Fittings
A-motor
B-motor
Motor drain plug
Motor shaft seal
Page P4
TR - 21 Parts
FLOW CONTROL VALVE ARRANGEMENT
Page P5
TR - 21 Parts
Item
Part Number
1
3
4
5
6
7
8
9
10
11
12
13
FC - 65 - 32
960957
960958
960959
960960
2042 - 16 - 16S
2062 - 16 - 12S
202702 - 16 - 16S
203101 - 16 - 16S
M - 50A
2082 - 4S
391 - 2883 - 119
Qty.
1
1
1
1
1
2
3
2
1
1
1
1
DESCRIPTION
Flow control valve
High pressure hose
Low pressure hose
Low pressure hose
High pressure hose
Bulk head
Fittings
Fittings
Fitting
A-motor
Motor drain plug
Motor shaft seal
Page P6
COMPACTOR BUILD SHEET
TRAMAC Corporation provides the following Compactor Build Sheet in order to meet all
the possible compactor design combinations required by the customer. From the following
options, please select the unit and features that best suit your needs:
Model
CHOOSE
ONE
OPTION
Side
TM
Plate
CHOOSE ONE
OPTION
FC Valve
(A Motor
only)
No FC
Valve
CHOOSE ONE
OPTION
A
Motor
B
Motor
TR-9
TR-14
N/A
N/A
TR-21
TR-40
C
Motor
CHOOSE ONE
OPTION
Flange
Fittings
N/A
SAE Oring
Fittings
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Page P7