Specifications

Service Training
Page 4.2
Section 58
09.04
4.2.5.5 HYDRAULIC BRAKING SYSTEM
4.2.5.5.1 FUNCTIONAL TEST
TEST CONDITIONS
- Truck jacked up and secured so that both traction wheels can rotate freely.
- Pedals properly adjusted.
- Brake pedal locked in the "brake applied" position
- Hydraulic oil at operating temperature
TEST
Test Symptoms Assessment
Start engine and attempt Traction wheels cannot
to turn right or left traction be turned.
wheel with wheel nut Parking brake system is
spanner and extension. okay.
Release brake pedal and Traction wheels can be
try to turn right or left turned.
traction wheel again.
After this test, lower the truck and check the braking behaviour of the rolling vehicle.
Perform this check by fully depressing the brake pedal when an accelerator pedal is fully depressed. The
wheels must lock without the truck pulling to one side. If the result of the test is not as described, determine
the cause by troubleshooting and remedy the fault
4.2.5.5.2 TROUBLESHOOTING
TEST CONDITIONS
- Truck jacked up and secured so that both traction wheels can rotate freely.
- Engine cover raised.
- Floor plate removed.
- Pedals properly adjusted.
- Engine and travel drive at operating temperature.
- Front cover removed.
- Brake pedal locked in the "applied" position.