Landoll 825A, Руководство оператора

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BRAKES (CONTINUED)
SYMPTOM PROBLEM: REMEDY
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 supplied
with semitrailer, for system function and use of blink code di-
agnostics .
5-4 BRAKE DRUMS
SYMPTOM PROBLEM: REMEDY
EXCESSIVE LOSS OF BRAKES OR
FADING
Overheated brake drums: check for defective or misadjusted
brake linings, distorted or over-machined drums. Also check for op-
erating conditions or loads that create severe or excessive brake
applications.
BRAKES PULL TO EITHER SIDE Drums of different diameters: replace with drums of same di-
ameter.
Foreign matter in drums: clean drums out.
ROUGH OR NOISY BRAKING
ACTION
Defective drums: pull drums and inspect for any of the following;
Heat spotted drums, grease spotting, blue drums, scored drums,
excessive wear at rivet holes or edges, polished drums, out of
round drums, unbalanced drums, worn/damaged brake compo-
nents, foreign matter in drums. Correct situation or replace defec-
tive part(s).
VIBRATION IN RIDE Defective drums or out-of-round: replace drums.
Out-of-balance drums: balance drums.
5-6