Removal (Fig. 24)
Park vehicle on a level surface, raise and support bed
1.
(if installed), shut engine off and engage the parking
brake.
2.
moval in the Service and Repairs section of Chapter 7
Remove seat base from vehicle (see Seat Base Re-
1
2
3
–
Chassis).
4
3.
Read the General Precautions for Removing and
Installing Hydraulic System Components at the begin-
ning of the Service and Repairs section of this chapter.
CAUTION
Figure 25
1.
2.
Lift lever
Clevis
3.
4.
Link rod
Lift valve spool
Before performing any service or repair on hy-
draulic system components, relieve system
pressure to avoid injury from pressurized hy-
draulic oil. Stop the engine, remove key from the
ignition switch, rotate the steering wheel in both
directions, lower or support the bed and operate
other hydraulic accessories.
4.
Label and disconnect hydraulic hoses from lift valve.
Install caps or plugs in hoses to prevent contamination
and leakage of hydraulic oil. Install plugs in valve ports.
5.
Remove lift valve from vehicle using Figure 24 as a
guide.
Installation (Fig. 24)
1.
Install lift valve to vehicle using Figure 24 as a guide.
Make sure that lift lever can be moved in control plate
slot to allow correct operation of lift lock. Readjust loca-
tion of clevis on link rod if needed (Fig. 25).
2.
Replace o–rings on hydraulic hoses and fittings. Re-
move caps and plugs from hoses and fittings. Connect
hydraulic hoses to lift valve.
3.
Install seat base to vehicle (see Seat Base Installa-
tion in the Service and Repairs section of Chapter 7 –
Chassis).
4.
Check oil level in transaxle (see Operator’s Manual).
Add Dexron III ATF if necessary.
5.
Start the engine, operate at idle speed and operate
the lift lever in both directions until air is out of hydraulic
system.
6.
Stop the engine and check oil level in transaxle (see
Operator’s Manual). Add Dexron III ATF if necessary.
7.
On TC models, verify correct operation of lift lever in-
terlock switch.
Workman 3000/4000 Series
Page 9 – 31
Hydraulic System
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