Load Compensator: Testing and Inspection

Load Sensing Proportioning And By-Pass Valve Components:

FLUID PRESSURE CHECK AND ADJUSTMENT

Set Rear Axle Load:

1. Set rear axle load.
(a) Set the vehicle unladen.
(b) Measure the rear axle load and note the value.
(c) Set the rear axle load.
Rear axle load: 920 kg (2,028 lbs.)

Install LSPV Gauge And Bleed Air:

2. Install Load Sensing Proportioning Valve (LSPV) gauge, Special Service Tool (SST) # 09709 - 29018 and bleed air.
3. Raise front brake pressure to following specification and check rear brake pressure.
REAR BRAKE PRESSURE:

Rear Drum Brake Model:

Rear Drum Brake Pressure Specifications:

Rear Drum Brake:

Rear Disc Brake Model:

Rear Disc Brake Pressure Specifications:

Rear Disc Brake:

NOTE: The brake pedal should not be depressed twice and/or returned while setting to the specified pressure. Read the value of rear pressure 2 seconds after adjusting the specified fluid pressure.

4. If necessary, adjust fluid pressure.

Adjust Spring Shaft Length:

(a) Adjust the spring shaft length by turning the adjusting nut.
Low pressure-Lengthen A.
High pressure-Shorten A.

NOTE: For every turn of the adjuster, the fluid pressure will change by about:
Rear Drum Brake: 196.1 kPa (28.4 psi)
Rear Disc Brake: 382.5 kPa (55.5 psi)

Torque Nut:

(b) Torque the nut.
Torque 13 Nm (9 ft. lbs.)

5. Remove LSPV gauge (SST) and bleed brake system. Service and Repair
6. Check for leaks.