H-5
35 Series 4WD, Model - 3535, 4035, 4535 and 5035 SM June’08
3. REMOVAL & REFITMENT OF HSU UNIT
A. Removal
1. Remove the battery cables. Remove the Battery
by removing the two stay bolts and the battery
holding plate. Take away the Battery.
NOTE: Always disconnect the negative terminal first.
2. Disconnect the following hydraulic oil connections
& Plug the pipes to prevent oil spillage.
a) Hose pipe of L & R ports.
b) Hose from Hydraulic pump to HSU.
c) Hose from HSU to PTO solenoid valve.
3. First remove the steering wheel cap and steering
wheel nut. Remove the steering wheel by
loosening nut and use steering wheel puller to
remove the steering wheel.
4. Dismantle the steering column cover, Disconnect
the wiring harness to PTO engaging switch.
5. Dismantle the scuttle cover.
6. Remove linkages of hand accelerator and
forward/reverse.
7. Loosen bolts of HSU Bracket.
8. Loosen hose connector of HSU to separate HSU.
In case any internal leakages observed, remove HSU unit
to replace O'Rings (seal kit) as follows:
Hydraulics Steering Unit Removal (Ref Fig.)
1. Loosen the cap screws of unit.
2. Gently take out the end cap.
3. Check the O’Rings for wear or damage.
4. Install the new O’Rings (seal kit) and fit the
adaptor and tighten as per the specified torque
5. Refit the removal parts of unit in reverse sequence
of removal.
B. Refitment
1. Assemble HSU unit
2. Fit the HSU hose pipe, connections and
bracketaries.
3. Connect the linkages of hand accelerator and
forward/reverse.
4. Assemble scuttle cover.
5. Fit the steering wheel and cap.
Steering
of 25 Nm / 18 lb.ft.
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