SPECIFICATIONS

Vehicle Systems Testing And Adjusting
Problem: Lift truck does not turn when steering
wheel is slowly turned.
Probable Cause:
1. The oil level of the tank is low.
2. There is air in the steering system.
3. The pump operation is not correct.
4. Dirt in the steering system.
5. Steering gear operation is not correct.
6. Steering cylinder has worn parts.
7. Restriction in the steer axle linkage.
Problem: The temperature of the oil is too hot.
Probable Cause:
1. The viscosity of the oil is wrong.
2. Air is mixed with the oil.
3. The relief valve is set too high (priority valve).
4. There is a restriction in the return line circuit.
Brake System
Drum Type Brakes
Problem: Brakes make noise or pull (grab).
Probable Cause:
1. Brake shoe adjustment not correct.
2. Lining surface looks like glass (glazed) or is worn.
3. Oil or brake fluid is on the lining.
4. Dirt on the brake drum lining surface.
5. Brake drum is worn or has grooves (scored).
6. Restriction in the brake line.
7. Brake drum is out of round.
Problem: Both brake shoes will not release all
the way (drag).
Probable Cause:
1. Brake shoe adjustment not correct.
2. Brake pedal adjustment not correct.
3. Mechanical resistance at the pedal or shoe.
4. Restriction in the brake line.
5. Bad wheel cylinder.
Problem: Pedal resistance is not solid (spongy).
Probable Cause:
1. Leakage or low fluid level.
2. Air in the brake hydraulic system.
3. Master cylinder is loose.
Problem: Extra (excessive) pedal pressure need-
ed for braking action.
Probable Cause:
1. Mechanical resistance on the pedal or shoe.
2. Brake shoe adjustment not correct.
3. Restriction in the brake line.
4. Bad master cylinder.
5. Lining surface looks like glass (glazed) or is worn.
Problem: Pedal gradually goes to the floor.
Probable Cause:
1. Leakage or low fluid level.
2. Bad master cylinder.
Problem: Extra (excessive) pedal travel.
Probable Cause:
1. Pedal adjustment is not correct.
2. Leakage or low fluid level.
3. Air in the brake hydraulic system.
4. Bad master cylinder.
5. Lining surface is worn.
6. Operation of automatic adjustment is not correct.
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