Landoll 334C, Operator'S Manual

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SYMPTOM PROBLEM: REMEDY
EXCESSIVE OIL PRESENT IN BRAKE SYSTEM Compressor on tractor passing excessive oil:
Refer to Tractor Repair manual.
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.
Relay valve failure: Replace valve.
Air line leak: Locate leak and repair.
Brake chamber leak: Replace brake chamber.
ABS WARNING LIGHT STAYS ON Refer to Rockwell WABCO ABS maintenance
manual supplied with trailer for system and use
of blink code diagnostics.
5-5 BRAKE DRUMS
For maintenance procedures, see Section 4-10.
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 operating conditions
or loads that create severe or excessive brake appli-
cations.
BRAKES PULL TO EITHER SIDE Drums of different diameters: Replace with drums
of same diameter.
Foreign matter in drums: Clean drums out.
ROUGH OR NOISY BRAKING ACTION Worn 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, un-
balanced drums, worn/damaged brake components,
foreign matter in drums. Correct situation or replace
worn part(s).
VIBRATION IN RIDE Worn or out-of-round drums: Replace drums.
Out-of-balance drums: Balance drums.
5-6 WINCH
SYMPTOM PROBLEM: REMEDY
POWER SPOOL DOES NOT DISENGAGE Load on cable: Properly secure trailer load as re-
quired and reel out cable to remove load.
Tension on winch gears: When reeling winch, mo-
mentarily rotate reel in opposite direction to relieve
tension on winch gears. Disengage winch.
5-8