SECTION 14: STEERING
DOB 2490-2789 | X3-45 Commuter PA1605 Maintenance Manual (Section 14 revised April 2018)
5
2.2
POWER STEERING GEAR REMOVAL
WARNING
The steering gearbox weighs approximately 100
lbs (45 kg) dry. Exercise caution when handling.
1. Put a container into place, then disconnect
both the inlet and outlet hoses from the power
steering gear. Cover fittings to prevent fluid
contamination.
2. Mark both the pitman arm and sector shaft
with a line, then remove pitman arm. Refer to
"11.1 Pitman Arm Removal"
procedure.
3. Mark both the steering shaft universal joint
yoke and steering gear input shaft with a line,
then disconnect universal joint.
4. Unscrew and remove the power steering
gear.
2.3
POWER STEERING GEAR
INSTALLATION
Reverse
"Power Steering Gear Removal"
procedure paying particular attention to the
following:
1. Tighten fasteners as recommended under
paragraph 14:
‘’Torque Specifications".
2. Bleed air from the system as per step 3, next.
2.4 TROUBLESHOOTING
Perform troubleshooting of the steering gear as
outlined in the
"ZF-SERVOCOM Repair Manual"
,
the
"ZF-SERVOCOM Operating, Servicing
/Maintenance and Inspection Instructions
.
3. BLEEDING POWER STEERING
HYDRAULIC SYSTEM
To bleed the power steering hydraulic system,
refer to the
"ZF-SERVOCOM Repair Manual"
,
under heading
"Setting And Functional Test"
.
4. HYDRAULIC
PRESSURE
TEST
Perform a pressure test as outlined in the
"ZF-
SERVOCOM Repair Manual"
under heading
"Setting And Functional Test"
.
5. POWER STEERING HYDRAULIC PUMP
The power steering pump is a gear driven
hydraulic unit which supplies hydraulic pressure
for the operation of the steering gear. The pump
is mounted on the engine, at the flywheel end and
is also used for driving the fuel pump.
5.1
REMOVAL AND INSTALLATION
The pump is accessible through the engine
compartment R.H. access door.
To remove the pump, proceed as follows:
You must first remove the fuel feed pump.
Clean around the fuel pump and fuel lines.
Position a container to catch any fuel that
might drain from the pump or lines.
Remove the fuel pump.
NOTE
Only unfasten the bolts marked with arrows.
FIGURE 4: FUEL PUMP REMOVAL
CAUTION
Ensure to clean around the head of the bolts.
Debris will prevent the tool from fitting properly
and cause damage to the fasteners.
Check that the adapter and fuel pump drive
axle are not damaged.
