Great Wall service chassis and body Manual - part 62

BR-44

Braking System

 Load Sensing Proportion Valve

(b)

Tear down the mounting bolts of valve bracket, and load

sensing proportion valve cluster.

Mount of Load Sensing Proportion Valve

1.

Mount the load sensing proportion valve cluster on the

frame.

2.

Connect the claming head II with the bracket:

(a)

Mount the claming head on the load inductive spring;

(b)

Adjust the spacing A.

Initial adjustment: 78 mm;

(c)

Mount the claming head II on the claming head bracket

3.

Connect the brake pipeline;

Connect the brake pipeline with SST.

Fastening torque

Dr SF

(18 
 2)N
m

SL SK SY SJ

(19 
 1)N
m

4.

Adjust the rear shaft load

5.

Adjust the valve:

(a)

When drag downward the load inductive spring, the

valve piston shall move downward smoothly.

(b)

When mount the valve body, the valve piston shall touch

the load inductive sensing spring lightly.

(c)

Screw up the mounting nuts of valve body.

SST

BR-45

Braking System

 Load Sensing Proportion Valve

6.

Exhaust the air in braking system

7.

Check and adjust the hydraulic pressure of load

sensing proportion valve.

SR-1

Notice .......................................................................... SR-2

Troubleshooting .......................................................... SR-2

Inspection on Vehicle .................................................. SR-3

Steering Column ......................................................... SR-4

Manual Steering Gear ................................................. SR-9

Power Steering ............................................................ SR-11

General Introduction ................................................ SR-11

Inspection on vehicle ............................................... SR-13

Power Steering Oil Pump ........................................ SR-16

Power Steering Gear ............................................... SR-18

Steering linkage .......................................................... SR-20

SR

  Steering System

Page

SR-2

Notice

The parts change should be conducted correctly because

any error will affect the properties of steering system, or lead

to accidental or damage when driving.

Troubleshooting

Trouble

Causes

Inspection items

Unsuitable tire inflation

Insufficient lubricant

Over-large inclination

Steering gear joint wear

Lower swing arm ball head wear

Steering column seize-up

Steering gear unsuitable adjustment or damage

Power steering conveyer looseness

Over-low liquid level in oil cup of steering pump

Failure in power steering mechanism

Inflate the tire to specified pressure

Lubricating the hanging devices

Check the Alignment of Front Wheel

Change the Steering gear joint

Change the lower swing arm ball

head;

Check the steering column

Adjust or repair the gear.

Adjust the conveyor.

Check the steering pump oil cup

Check the power steering devices

Poor returning

Unsuitable tire inflation

Insufficient lubricant

Incorrect wheel alignment

Steering column seize-up

Steering gear unsuitable adjustment or damage

Inflate the tire to specified pressure

Lubricating the hanging devices.

Check the Alignment of Front

Wheel

Check the steering column

Change the steering gear.

Over-large play

Front wheel bearing wear

Steering drive shaft yoke wear

Lower swing arm ball head wear

Steering gear joint wear

Steering gear unsuitable adjustment or damage

Change the front bearing

Change the steering drive shaft

Change the swing arm ball head

Change the steering gear joint

Change the steering joint

Abnormal noise

Steering drive lever looseness

Steering gear joint wear

Steering gear unsuitable adjustment or damage

Oil lack or poor sealing of steering machine.

Tighten the steering drive lever

Change the steering gear joint

Change the steering gear

Add the oil or change the sealing

washer Steering system inspection

on vehicle.

Steering System

 Notice and Troubleshooting

Difficulty in steering