35
safety concerns. The cut-off valve is intended to isolate the oil feed from the actuator before the
maximum (permissible) tipping angle of the body is reached. Changing the length or breaking
of the cable between the load body frame and the cut-off valve may result in damage of the
trailer or a risk of turning over the trailer.
INFORMATION!
•
Do not remove or disconnect the safety cable / load body tipping
limiter.
•
Unauthorised persons must not adjust the cut-off valve.
8. TROUBLESHOOTING
Table 3 lists the faults, their causes (symptoms) and solutions.
Table 3
Item
Fault type
Possible cause
Remedy
1
2
3
4
1.
Excessive heating of brake
drums
Brake shoes are out of
adjustment
Adjust per section 6.2.2.
2. Excessive heating of wheel
hubs
Insufficient clearing of
bearings.
Contamination in bearing
grease.
Adjust per section 6.1.1.
Remove the hub, replace
the grease and adjust the
bearings as indicated above.
3. The grease flows out on the
brake shoes
Damaged, worn out or
improperly installed hub
seal
Remove the hub, replace
the worn/damaged seal and
reinstall properly. Remove
the grease from the shoes
and the brakes, clean the
friction components with
extraction naphtha, reinstall
the hub and adjust the
bearings as indicated above.
4. Uneven braking of wheels Contamination or excessive
wear of shoe pads, or the
brake shoes are out of
adjustment.
Check the brake shoe pads,
remove contaminants,
replace worn out pads and
readjust as in section 6.2.2.
5. Insufficient wheel braking
performance.
Incorrect adjustment of the
shoes and brake controls.
Adjust the brake shoes and
control components per
section 6.2.2.
6.
Oil leak at the hydraulic
connections.
The connectors are made
too loose or damage of
connector seals.
Retighten and/or replace the
line parts as necessary.
7. Oil leak from the cut-off
valve or the actuator.
Worn out or damaged seals,
or mechanical damage of
devices.
Replace the seals of the
entire devices (units).