TRW TA S40 Series User manual

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0603-V-003-0207
TRW TAS STEERING GEAR
TRW Automotive
Commercial Steering Systems
TAS Steering Gear
Service Manual
T A S40,55,65, 66 AND 85 SERIES

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Hazard Warning Definitions
A warning describes hazards or unsafe practices which could result in
severe personal injury or death.
A caution describes hazards or unsafe practices which could result in
personal injury or product or property damage.
A note gives key information to make following a procedure easier or quicker.
Disclaimer
This Service Manual has been prepared by TRW Commercial Steering Systems for reference and use
by mechanics who have been trained to repair and service steering components and systems on heavy
commercial vehicles. TRW Commercial Steering Systems has exercised reasonable care and diligence to
present accurate, clear and complete information and instructions regarding the TRW Commercial Steer-
ing TAS Series Integral Power Steering Gears. Since this is a general Service Manual, the photographs
and illustrations may not look exactly like the steering gear being serviced. The procedures, therefore ,
must be carefully read and understood before servicing.
If inspection or testing reveals evidence of abnormal wear or damage to the TAS steering gear or if you
encounter circumstances not covered in the Manual, Stop - Consult the vehicle manufacturer's
Service Manual and warranty. Do not try to repair or service a TAS steering gear which has
been damaged or includes any part that shows excessive wear unless the damaged and worn
parts are replaced with original TRW replacement and service parts and the unit is restored to
TRW's specifications for the TAS steering gear.
It is the responsibility of the mechanic performing the maintenance, repairs or service on a particular TAS
steering gear to (a) inspect the steering gear for abnormal wear and damage, (b) choose a repair proce-
dure which will not endanger his/her safety, the safety of others, the vehicle, or the safe operation of
the vehicle, and (c) fully inspect and test the TAS steering gear and the vehicle steering system to ensure
that the repair or service of the steering gear has been properly performed and that the steering gear and
system will function properly.
Patents
TRW Commercial Steering Division TAS power steering gears are covered by several United States and
foreign patents, either issued or pending.
© TRW Inc., 2007

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Contents
Section 1 General Information
Introduction ..............................................................................................................5
Oil Flow Illustration..................................................................................................7
General Design.........................................................................................................8
General Operation....................................................................................................9
Gear Specification Numbers ..................................................................................10
Torque Chart...........................................................................................................11
Exploded View........................................................................................................12
Exploded View Part Descriptions...........................................................................13
Service Parts List....................................................................................................14
Parts Vary by Specification.....................................................................................15
Service Kits ............................................................................................................16
Section 2 Installation
Initial Installation ...................................................................................................18
Initial Poppet Setting .............................................................................................18
Maintenance Tips...................................................................................................19
Output Shaft Grease Pack Diagrams .....................................................................20
Section 3 Gear Disassembly, Inspection and Assembly
Disassembly Preparation .......................................................................................23
Disassembly Procedures ........................................................................................24
Inspection...............................................................................................................31
Assembly Preparation ............................................................................................33
Assembly Procedures.............................................................................................33
Internal Component Repair Procedures
Poppets........................................................................................................41
Valve Housing/Worm Screw ......................................................................43
Roller Bearing - Standard Gears .................................................................50
Roller Bearing - Step Bore Gears ................................................................51
Port Plugs, Screws and Manual Bleed Screw Replacement .................................52
Final Adjustments ..................................................................................................53
Section 4 Reinstallation
Reinstallation Procedure........................................................................................57
Poppet Resetting Procedure...................................................................................57
Glossary.................................................................................................................. 58
All steering mechanisms are safety critical items. As such, it is
imperative that the instructions in this booklet be followed to the letter.
Failure to observe the procedures set forth in this manual may result in a loss of steering.

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Section 1 General Information
Introduction ................................................................................................ 5
Oil Flow Illustration .................................................................................... 7
General Design........................................................................................... 8
General Operation ...................................................................................... 9
Gear Specification Numbers .................................................................... 10
Torque Chart ............................................................................................. 11
Exploded View .......................................................................................... 12
Exploded View Part Descriptions ............................................................. 13
Service Parts List...................................................................................... 14
Parts Vary by Specification....................................................................... 15
Service Kits (General)............................................................................... 16
Service Kits (Gear Specific) ...................................................................... 16

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Introduction
This new TAS Service Manual replaces all previous editions of TRW's TAS40, 55, 65, 66 and 85 Service
Manuals.
Changes in the layout of this Service Manual reflect TRW's commitment to provide easily usable material
and highly recognizable hazard notices. Some of the major changes are:
s 2EVISEDTORQUEFORCEPRESSUREANDmOWNOTATIONSTHATCONFORMTOINTERNATIONALSTANDARDS
s 3ERVICE-ANUALDIVIDEDINTOSECTIONSFOREASIERREFERENCE
s 5NINTERRUPTEDRESEALINGINSTRUCTIONS2EFERENCETODAMAGESECTIONALLOWSYOUTOREPAIROR
replace damaged parts and return to the resealing procedures easily.
s "INDINGPROCESSTHATBETTERALLOWSTHE3ERVICE-ANUALTOLAYmAT
The three-column format used in the Service Manual will also help make it easy for you to service a
steering gear. Column 1 illustrates the procedure with photographs, column 2 gives a brief key as well as
tools to be used for each procedure, and column 3 explains in detail the procedure you should follow. Pay
special attention to the notes, cautions and warnings.
Item numbers on the exploded view correspond with item numbers used throughout the Service Manual.
As you gain experience in servicing TAS steering gears, you may find that some information in this Service
Manual could be clearer and more complete. If so, let us know about it. Don't try to second-guess the
Service Manual; if you do not understand a procedure, contact our Technical Services Department at
765.423.5377 or 800.TRW.0899. Servicing TAS series steering gears should be safe and productive.

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Oil Flow Illustration
Straightline Running
No Steering Action
Left Hand Turn
Steering Wheel Input:
Counter-Clockwise Rotation
Su
pp
ly Pressure Return Pressure
Left Hand Lead Right Hand Lead
Right Hand Turn
Steering Wheel Input:
Clockwise Rotation

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General Design
Integral Power Steering
TAS power steering gears are another part of our fully integral
hydraulic power steering gear family. Fully integral hydraulic power
steering means that the gear contains a manual steering mechanism, a
hydraulic control valve, and a hydraulic power cylinder, all in a single,
compact package.
Rotary Control Valve
The rotary control valve combines simplicity of construction with desir-
able performance characteristics. The speed at which the driver can
turn the steering wheel with power assist is dependent upon the pump
flow (measured in gallons per minute or liters per minute) directed to
a cylinder cavity. The control valve controls flow through the steering
gear.
The pressure (measured in pounds per square inch, or bar) required for
the gear to steer the vehicle is created by the power steering pump to
overcome resistance at the steered wheels. The control valve senses
these requirements and directs fluid to the appropriate cylinder cavity
in the steering gear (and in the auxiliary cylinder if it is a dual steering
system) at the proper flow rate and pressure.
Pressure Means Work, Flow Means Speed
The higher pressure a steering gear can withstand, the more work it
can perform. The maximum operating pressure for TAS40, 55, 65 and
85 gears is 2,175 psi (150 bar). The maximum operating pressure for
a TAS66 gear is 2,320 psi (160 bar). Maximum flow rate for all TAS
gears is 8 gal/min (30.3 L/min).
The TAS series gears can steer a vehicle within its front-end weight
rating through a turn at low speed and engine idle. As the driver turns
the steering wheel faster or slower, more or less fluid will be required
by the gear. TAS series vehicle front-end weight ratings are as follows:
Gear Front Axle Rating
TAS40 9,000 lb (4,100 kg)
TAS55 12,000 lb (5,400 kg)
TAS65 14,300 lb (6,500 kg)
TAS66 14,300 lb (6,500 kg)
TAS85 18,000 lb (8,200 kg)
The recommended minimum flow at 1
1
⁄
2
steering wheel turns per
second is as follows:
Gear Minimum Flow Rate
TAS40 2.2 gal/min (8.3 L/min)
TAS55 2.6 gal/min (9.8 L/min)
TAS65 3.0 gal/min (11.4 L/min)
TAS66 3.0 gal/min (11.4 L/min)
TAS85 3.6 gal/min (13.6 L/min)
If the steering gear valve is controlling an auxiliary cylinder, increased
minimum flow is required (generally at least 75%) based on the size of
the auxiliary cylinder and the vehicle's steering geometry.
Maximum internal leakage for all TAS gears is 1 gal/min.

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General Operation
What Happens During a Steering Maneuver
When the driver turns the steering wheel, he transmits force from the
steering wheel to the steering gear input shaft. A torsion bar, pinned
at its one end to the input shaft and at its other end to the worm shaft,
turns with the input shaft and exerts a rotational force on the worm
shaft. In response to this rotational force, the worm shaft, acting
through the recirculating ball mechanism, tries to move the rack piston
axially through the gear housing cylinder bore.
The rack piston's axial movement is resisted by its engagement to the
sector shaft, which is connected by linkage to the steered wheels.
Because of this resistance, the torsion bar is twisted by the input shaft,
thereby actuating the control valve. Pressurized fluid, directed by the
control valve, assists in moving the rack piston axially through the
cylinder bore. The rack piston then turns the sector shaft to steer the
vehicle.
Shock Loads to the Gear
If the steered wheels receive a shock load, the shock forces are trans-
mitted through the sector shaft to the rack piston, and on to the worm
shaft. The internal geometry of the steering gear causes the control
valve to send high-pressure fluid to the correct cylinder cavity to resist
the shock forces. By absorbing the shock forces hydraulically, the
steering gear prevents objectionable kickback at the steering wheel.
Unloading (Poppet) Valves
Most TAS gears are equipped with two unloading valves, one at each
end of the rack piston. One valve or the other, depending on the direc-
tion of turn, will trip as the steered wheels approach the axle stops
(which must be set according to manufacturer's specification). The
tripped valve reduces pressure in the gear and helps to reduce heat
generated by the pump. At the same time, the valves also reduce
forces on the steering linkage. These valves are automatically set to
axle stops after installation in vehicle at first full right and left turn.
Relief Valve
Some TAS gears, (with or without poppets), are supplied with a relief
valve. The relief valve limits maximum supply pressure to protect the
power steering gear, but it does not reduce pressure as the steered
wheels approach the axle stops.
Bleed Systems
Some TAS gears which are mounted with the output shaft above the
rack piston bore are equipped with either an automatic bleed system or
a manual bleed screw.
The procedures for Flushing and Air Bleeding the System are found in
the Steering Maintenance Guideline packet (TRW Document #800).
Replacement of damaged automatic bleed plugs, and manual bleed
screws is described on page 52.

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Specification Numbers
Gear Part #
The steering gear part number is
stenciled on a machined surface
opposite the input shaft of every
TAS gear. The number cast into the
side of the housing IS NOT the part
number.
Gear Identifier
Letters stenciled after the part
number indicate the following:
A - Q = Step Bore Hsg.
T - Z = High Flow Poppets
R = Reman (TRW)
Date Code
An example date code would be
29097; this means the gear was built
on the 290th day of 1997.
Serial #
Newer gears include a serial number.
TAS65001A
29097S01B27
Gear Part #
Date Code Serial #
Identifier

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Part Name Item # Torque Range Dry Torque Range Lubricated
Auxiliary cylinder plug 8 25-35 lbf•ft (34-48 N•m)
Ball return guide cap/strap bolts 29 14-22 lbf•ft (19-29 N•m)
Bearing adjuster 21 11-15 lbf•ft (15-20 N•m)*
Locknut 22 101-122 lbf•ft (137-165 N•m)**
Manual bleed screw n/s 40-50 lbf•in. (3.1-3.7 N•m)
Plug, auto bleed n/s 38-58 lbf•ft (52-79 N•m)
Poppet sleeve assembly 23 16-20 lbf•ft (22-27 N•m)
Poppet sealing nut, service 39 33-37 lbf•ft (45-50 N•m)
Poppet fixed stop screw 38 38-42 lbf•ft (52-57 N•m)
Poppet fixed stop screw 37 38-58 lbf•ft (52-79 N•m)
Relief valve cap 5 25-35 lbf•ft (34-48 N•m)
Sector shaft adjusting screw jam nut 46 40-45 lbf•ft (54-61 N•m)
Side cover bolts (TAS40) 47 108-128 lbf•ft (147-174 N•m)
Side cover bolts (TAS55, 65, 66 & 85) 47 160-180 lbf•ft (217-244 N•m)
Valve hsg. bolts (TAS40, 55, & 65) 1 75-85 lbf•ft (102-115 N•m)
Valve hsg. bolts (TAS85) 1 108-128 lbf•ft (147-174 N•m)
Torque Chart
Special tools can be purchased through:
SPX Corporation
Kent-Moore Tool Group
28635 Mound Road
Warren, MI 48092
1-800-328-6657
Item numbers referenced are shown on the exploded views, pages 12,
14, and 16. (Please note that these exploded views are all identical.)
* After tightening to this torque value, the adjuster must be backed
off
1
⁄
4
to
1
⁄
2
of a turn as described in step 23 on page 47.
** Torque value indicated is using recommended tools.
n/s = Not Shown

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Exploded View
B
A
Short "V"
Rack Piston Assembly
Long "V"
Rack Piston Assembly
Step Bore w/ Hook Groove
Step Bore w/ Retaining RingStandard
B
B
A
A
B
A
TAS85 Only
TAS40, 55, 65 and 66
1
8
9
10
14
18
16
18
23
24
25
26
24
28
28
14
21
35
30
46
46
45A
44
47
43
42
42
45A
55
54
45B
45A
45A
29
32
33
34
34
33
12
5
6
7
36
37
41
38
39
36
2
3
4
11
13
15
17
19
20
23
35
23
27
31
49
53
36
53
49
43 48
36
48
50
43
49
51
48
52
43
27
40
23
24
25
26
24
29
54
56
13
22

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Exploded View Part Descriptions
Kit Item Description
1 Bolts, Valve Housing (4)
♣♦ 2 Seal, Dirt and Water Seal
♣♦ 3 Ring, Retaining
♣♦ 4 Seal, Input Shaft
5 Cap, Relief Valve
♣6 O-ring, Relief Valve
7 Valve, 2 Piece Relief
8 Plug, Auxiliary Port
♣9 O-ring, Auxiliary Port
10 Housing, Valve
♣11 Seal Ring, Valve Housing
♣12 Seal Ring, Valve Housing
♣13 O-ring
♣14 Ring, Seal
♣15 Ring, Seal
♣16 O-ring, Valve Housing
17 Washer (Thick), Thrust
18 Bearing, Thrust (1 or 2)
19 Input Shaft / Worm Valve Assy.
20 Washer (Thin), Thrust
21 Adjuster, Bearing
♣22 Locknut, Adjuster
♠23 Poppet Seat and Sleeve Assy. (2)
♠24 Poppet (2)
♠25 Push Tube
♠26 Poppet Spring
♣27 Ring, Rack Piston Teflon Seal
♣28 O-ring, Rack Piston (Back up)
♣29 Screws, Torx (2)
♣30 Strap, Ball Return Guide
31 Cap, Ball Return Guide
♣32 Seal, Cap
33 Guide Halves, Ball Return
34 Balls, Steel
35 Piston, Rack
36 Housing
37 Bolt, Alt. Fixed Stop
38 Bolt and Washer, Fixed Stop
∇39 Jam Nut, Poppet Sealing
∇40 Screw, Poppet Adjusting
41 Shaft, Sector
♣♥ 42 Gasket, Side Cover
♣♥ 43 Seal, Output (2)
44 Cover Assembly, Side
♣45A Vent Plug, Side Cover
♣45B Vent Plug, Side Cover
46 Jam Nut, Side Cover
47 Bolts, Side Cover (6 or 8)
♥48 Ring, Retaining
49 Bearing, Roller
50 Washer, Spacer
♣♥ 51 Seal, Dirt
♣♥ 52 Seal, Dirt and Water
♣♥ 53 Seal, Dirt and Water
54 Bleed Screw, Manual
55 Bleed Screw, Auto
56 Plug, Auxiliary Port (Side Cover)
Symbol indicates which kit item is included in.
♣= Complete Seal Kit
♦= Input Shaft Seal Kit
♥= Output Shaft Seal Kit
♠= Poppet Kit
∇= Poppet Adjusting Screw Kit

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Service Parts List
Item Description Standard SB / Retaining Ring SB / Hook Groove
1 Bolts, Valve Housing (4) 020251 020251 020251
Bolts, Valve Housing (4) TAS85 020272 020272 020272
2 Seal, Dirt and Water Seal Available in Kit Available in Kit Available in Kit
3 Ring, Retaining Available in Kit Available in Kit Available in Kit
4 Seal, Input Shaft Available in Kit Available in Kit Available in Kit
6 O-ring, Relief Valve Available in Kit Available in Kit Available in Kit
8 Plug, Auxiliary Port Available in Kit Available in Kit Available in Kit
9 O-ring, Auxiliary Port Available in Kit Available in Kit Available in Kit
11 Seal Ring, Valve Housing Available in Kit Available in Kit Available in Kit
12 Seal Ring, Valve Housing Available in Kit Available in Kit Available in Kit
13 O-ring Available in Kit Available in Kit Available in Kit
14 Ring, Seal Available in Kit Available in Kit Available in Kit
15 Ring, Seal Available in Kit Available in Kit Available in Kit
16 O-ring, Valve Housing Available in Kit Available in Kit Available in Kit
17 Washer (Thick), Thrust 400143 400143
400143
18 Bearing, Thrust (1 or 2) 070027 070027 070027
20 Washer (Thin), Thrust 400144 400144 400144
21 Adjuster, Bearing 400149 400149 400149
22 Locknut, Adjuster Not Serviceable Not Serviceable Not Serviceable
23 Seat and Sleeve Assy. Poppet Available in Kit Available in Kit Available in Kit
24 Poppet (2) Available in Kit Available in Kit Available in Kit
25 Tube, Push Available in Kit Available in Kit Available in Kit
26 Spring, Poppet Available in Kit Available in Kit Available in Kit
27 Ring, Rack Piston Teflon Seal Available in Kit Available in Kit Available in Kit
28 O-ring, Rack Piston (Back up) Available in Kit Available in Kit Available in Kit
29 Screw, Torx (2) Available in Kit Available in Kit Available in Kit
30 Strap, Ball Return Guide 400167 400167 400167
31 Cap, Ball Return Guide Available in Kit Available in Kit Available in Kit
32 Seal, Cap Available in Kit Available in Kit Available in Kit
34 Balls, Steel 213684-X1 213684-X1 213684-X1
39 Jam Nut, Poppet Sealing Available in Kit Available in Kit Available in Kit
40 Screw, Poppet Adjusting Available in Kit Available in Kit Available in Kit
42 Gasket, Side Cover Available in Kit Available in Kit Available in Kit
43 Seal, Output (2) Available in Kit Available in Kit Available in Kit
48 Ring, Retaining Available in Kit Available in Kit Available in Kit
50 Washer, Spacer Available in Kit Available in Kit Available in Kit
51 Seal, Dirt Available in Kit Available in Kit Available in Kit
52 Seal, Dirt and Water Available in Kit See Item 53 See Item 53
53 Seal, Dirt and Water See Item 52 Available in Kit Available in Kit
54 Screw, Manual Bleed 213705 213705 213705
(Housing Location Not Shown)
55 Screw, Auto Bleed 021397 021397 021397
(Housing Location Not Shown)
56 Plug, Auxiliary Port (Side Cover Location) 415437-A1 415437-A1 415437-A1

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Parts Vary by Specification*
Item Description
5 Cap, Relief Valve
7 Valve, 2 Piece Relief
10 Housing, Valve
19 Worm Valve Assembly, Input Shaft
33 Guide Halves, Ball Return
35 Piston, Rack
36 Housing
41 Shaft, Sector
44 Cover Assembly, Side
47 Bolts, Side Cover (6 or 8)
49 Bearing, Roller
*Contact TRW Technical Service for part numbers

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Gear Model Description Kit Part Number
TAS40 Complete Seal Kit TAS400004
TAS55 Complete Seal Kit TAS550004
TAS65 & TAS66 Complete Seal Kit TAS650012
TAS85 Complete Seal Kit TAS850005
All TAS Input Shaft Seal Kit TAS000001
TAS40 Output Shaft Seal Kit TAS400005
TAS55, TAS65, TAS66 Output Shaft Seal Kit TAS000002
TAS85 Output Shaft Seal Kit TAS850007
TAS40, TAS55, TAS65, TAS66 Poppet Kit TAS000003
TAS85 Poppet Kit TAS850006
All TAS Poppet Adjusting Screw/Nut Kit 021407X1
All TAS Relief Valve Cap and O-ring 411061A1
All TAS Auxiliary Port Plug and O-ring 415437A1
Gear Part Number Description Kit Part Number
TAS65127A Complete Seal Kit TAS650014
TAS65129A
TAS65155A
TAS65156A
TAS65172A
TAS65094T Poppet Kit TAS000004
TAS65095T
TAS65126T
TAS65142T
TAS65198T
TAS65200T
TAS65202T
TAS65213T
TAS65214T
TAS65215T
TAS66006T
TAS40019A Poppet Adjusting Screw/Nut Kit 021318X1
TAS40030A
TAS40044A
TAS65006A
TAS65013A
TAS65033A
TAS65035A
TAS65076A
TAS65133A
TAS66005A
TAS65033A
TAS85055A
TAS85064A
TAS85067A
Service Kits (General)
Service Kits (Gear Specific)

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Section 2 Installation
)NITIAL)NSTALLATION
)NITIAL0OPPET3ETTING
-AINTENANCE4IPS
/UTPUT3HAFT'REASE0ACK$IAGRAMS

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Initial Installation
Initial Poppet Setting
s "OLTGEARTOFRAMETORQUETOVEHICLEMANUFACTURERgSRECOMMENDATION
s #ONNECTRETURNLINETO4!3RETURNPORT
s #ONNECTHYDRAULICLINEFROMPUMPTOPRESSUREPORTIN4!3UNIT
s #ONNECTSTEERINGCOLUMNTOINPUTSHAFTTORQUEPINCHBOLTTOVEHICLEMANUFACTURERgSRECOMMENDATION
s )NSTALLPITMANARMONOUTPUTSHAFTTORQUEBOLTTOVEHICLEMANUFACTURERgSRECOMMENDATION
&ORTHISPROCEDURETOWORKCORRECTLYYOUMUSTHAVE!NEWGEARRECEIVEDFROM427ORYOURVEHICLEMANUFACTURERgSAFTERMARKETSYSTEMorAUSED
GEARONWHICHPOPPETSEATSHAVEBEENREPLACEDORRESETDURINGGEARDISASSEMBLYPROCEDURESALSO:!lXEDSTOPSCREWINSTALLEDINTHEHOUSING
ORAPOPPETADJUSTINGSCREWINSTALLEDSOTHATITDUPLICATESTHElXEDSTOPSCREWLENGTH
The axle stops and all steering
linkage must be set according to
vehicle manufacturer's specifications, and the pitman
arm must be correctly aligned on the sector shaft for
poppets to be set correctly.
&OLLOWTHESAMEPROCEDUREWHILETURNINGTHESTEERINGWHEELIN
THEOTHERDIRECTION4HEPOPPETSARENOWPOSITIONEDTOTRIPAND
REDUCEPRESSUREASTHESTEEREDWHEELSAPPROACHTHEAXLESTOPS
INEITHERDIRECTION
Full turn in one
direction
Full turn in other
direction
7ITHTHEENGINEATIDLEANDTHEVEHICLEUNLOADEDTURNTHESTEER
INGWHEELTOFULLTRAVELINONEDIRECTIONUNTILAXLESTOPCONTACT
ISMADE-AXIMUMINPUTTORQUETOBEAPPLIEDDURINGTHIS
PROCEDUREISLBRIMPULL.ONAINMMDIAMETER
STEERINGWHEEL
)FYOUENCOUNTEREXCESSRIMPULLEFFORT
ALLOWTHEVEHICLETOROLLFORWARDORJACK
UPTHEVEHICLEATTHEFRONTAXLE

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Maintenance Tips
Never high-pressure wash or steam clean a power steering
gear while on or off the vehicle. Doing so could force contami-
nants inside the gear and cause it to malfunction.
-AKESUREVEHICLEWHEELCUTORCLEARANCESMEETMANUFACTURERgSSPECI
lCATIONSANDMAKESUREPITMANARMTIMINGMARKSAREALIGNEDPROPERLY
TOprevent internal bottomingOFTHESTEERINGGEAR
Regularly check the fluidANDTHEmUIDLEVELINTHEPOWERSTEERING
RESERVOIR
Keep tires inflatedTOCORRECTPRESSURE
Never use a torch to remove pitman arm.
)NVESTIGATEANDIMMEDIATELYcorrect the cause of any play, rattle,
or shimmyINANYPARTOFTHESTEERINGSYSTEM
Make sure the steering column is aligned properly.
Encourage drivers to report any malfunctions or accidents THAT
COULDHAVEDAMAGEDSTEERINGCOMPONENTS
Do not attempt to weld any broken steering component. 2EPLACE
THECOMPONENTWITHORIGINALEQUIPMENTONLY
Do not cold straighten, hot straighten, or bend any steering
system component.
!LWAYSclean off around the reservoir filler capBEFOREYOUREMOVE
IT0REVENTDIRTOROTHERFOREIGNMATTERFROMENTERINGTHEHYDRAULIC
SYSTEM
Investigate and correct any external leaksNOMATTERHOWMINOR
Replace reservoir filtersACCORDINGTOREQUIREMENTS
)FYOUFEELTHEVEHICLEISDEVELOPINGEXCESSIVELYhigh hydraulic fluid
temperaturesCONSULTWITHYOURVEHICLEMANUFACTURERFORRECOMMEN
DATIONS
Maintain grease packBEHINDTHEOUTPUTSHAFTDIRTANDWATERSEALAS
AGENERALMAINTENANCEPROCEDUREATLEASTTWICEAYEARINTHE3PRING
AND&ALL'REASElTTINGISPROVIDEDINHOUSINGTRUNNION5SEONLY.,')
GRADEORMULTIPURPOSECHASSISLUBEANDUSEONLYAHANDOPERATED
GREASEGUNONlTTING!DDGREASEUNTILITBEGINSTOEXTRUDEPASTTHE
SECTORSHAFTDIRTANDWATERSEAL3EE0AGEFORILLUSTRATIONSOFTYPICAL
4!3/UTPUT3HAFT!SSEMBLIES
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