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BRAKES (CONTINUED)
SYMPTOM
PROBLEM: REMEDY
INSUFFICIENT BRAKES
Brakes need adjusting:
adjust brakes.
Brakes need lubricating:
lubricate brakes.
Brakes need relining:
reline brakes.
Low air pressure:
troubleshoot air system.
Defective relay emergency valve:
repair or replace.
Brakes overheated:
stop and allow brakes to cool, locate
cause of overheating.
BRAKES GRABBING
Grease on brake linings:
reline brakes.
Brake rigging binding:
align brakes or replace bent parts.
Defective brake valve on tractor:
repair or replace valve.
Defective relay emergency valve:
repair or replace valve.
EXCESSIVE LEAKAGE WITH
BRAKES RELEASED
Relay emergency valve leaking:
repair or replace valve.
Leaking tubing or hose:
replace defective part.
EXCESSIVE LEAKAGE WITH
BRAKES APPLIED
Relay emergency valve leaking:
repair or replace valve.
Leaking brake chamber diaphragm:
replace diaphragm.
Call Factory or see qualified Trailer/Brake Technician
Leaking tubing or hose:
replace defective part.
EXCESSIVE LEAKAGE WITH
EMERGENCY SYSTEM ONLY
APPLIED - NO LEAKAGE WITH
NORMAL BRAKING
Defective relay emergency valve:
repair or replace valve.
EXCESSIVE WATER PRESENT IN
BRAKE SYSTEM
Reservoir not drained often enough:
drain reservoir daily.
EXCESSIVE OIL PRESENT IN
BRAKE SYSTEM
Compressor on tractor passing excessive oil:
repair com-
pressor.
BRAKE WILL NOT APPLY
PROPERLY
Flat spot on cam roller or camshaft:
replace and lubricate.
BRAKES WILL NOT APPLY
WHEN EMERGENCY LINE IS
DISCONNECTED
Initial air pressure too low:
allow air system to build up to
minimum 90 PSI and stabilize.
Defective relay valve:
repair or replace valve.
Air line leak:
locate leak and repair.
Brake chamber leak:
locate leak and repair or replace.
ABS WARNING LIGHT STAYS
ON
Refer to Rockwell WABCO ABS maintenance manual sup-
plied with semitrailer, for system function and use of blink
code diagnostics.
5-5
Содержание 330B
Страница 3: ...MODEL 330B SEMITRAILER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO i ...
Страница 8: ......
Страница 12: ......
Страница 20: ...3 8 Figure 3 3 Steps for Loading and Unloading ...
Страница 26: ...3 14 Figure 3 7 Rear Impact Guard System ...
Страница 34: ...4 6 Figure 4 2 330B Wiring Diagram ...
Страница 35: ...4 7 Figure 4 3 Remote Wiring Diagram ...
Страница 40: ...4 12 Figure 4 6 Examples of Camber Figure 4 7 Checking Axle for Bend ...
Страница 44: ...4 16 Figure 4 11 Axle and Brake Assembly ...
Страница 54: ......
Страница 63: ...NOTES 5 9 ...
Страница 64: ......