Landoll 600C Series, Operator'S Manual

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TIRES - WHEELS - SUSPENSION (CONTINUED)
SYMPTOMS PROBLEM: REMEDY
RIM FAILURE*:
CRACKING Overinflated tires: deflate tire to proper PSI.
High speeds: adjust speed according to road and load condi-
tions.
High speed cornering: adjust cornering practices.
Over loading: check rim load rating.
*IN ALL INSTANCES OF RIM FAILURE, REPLACE THE RIM IMMEDIATELY!
BENDING OR WARPING
Curb-hopping or potholes: adjust turning practices and adjust
speed accordingly with road conditions.
Improper tightening sequence: follow proper tightening se-
quence. ( See Figure 4-22)
BROKEN STUDS*
Over tightening: use correct torque when mounting.
*REPLACE BROKEN STUDS BEFORE USING THE SEMITRAILER!
SEMITRAILER TRACKING PROB-
LEMS:
TRACKS TO ONE SIDE Axle alignment: re-align axle.
TRACKS TO EITHER SIDE Broken or bent springs or equalizers: replace defective
parts.
Axles not parallel : realign axles
AIR RIDE HEIGHT PROBLEMS:
TOO HIGH
Axle to control valve linkage: readjust linkage.
Height Control Valve internal leak: repair or replace valve.
TOO LOW
Axle to control valve linkage: readjust linkage.
Height Control Valve filter plugged: clean or replace valve.
Pressure Protection Valve filter plugged: clean or replace
valve.
System air pressure low (65 PSI minimum required): trou-
bleshoot air supply.
UNEVEN FROM SIDE TO SIDE Linkage adjustment: readjust linkage.
Exhaust port plugged: clean or replace valve(s).
Height control valve internal leak: repair or replace valve.
Supply line to one height control valve pinched, restricted,
or plugged:
repair or replace line.
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