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5-2
F-482-0510 Edition
TROUBLESHOOTING
Tires-Wheels-Suspension
Most tire, wheel, and suspension related problems are
due to excessive loads, extreme conditions, and
improper maintenance. Tire, wheel, and suspension
problems can be easily detected and solved by checking
the following guide. For maintenance procedures, refer to
the following sections:
• “Hydraulic System” on page 4-4
• “Hub and Drum Maintenance” on page 4-19
• “Wheel Bearing Lubrication and Adjustment” on
• “Tire Maintenance” on page 4-22.
PROBLEM
PROBABLE CAUSE
SOLUTION
VIBRATIONS WHILE DRIVING
Improper tire inflation
Inflate to proper pressure
Tire cupped or have flat spots
Replace tires
Wheels bent or loose
Replace or tighten
Tire incorrectly mounted
Remount
Mud in wheels
Clean wheels
Tire(s) out of balance
Balance tires
Brakes dragging
Locate cause and repair
Objects stuck between duals
Remove objects
RAPID TIRE WEAR/DETERIORATION:
CENTER TREAD WEAR
Over inflation
Deflate to correct inflation
SHOULDER TREAD WEAR - BOTH
SHOULDERS
Under inflation
Increase inflation to correct PSI
SHOULDER TREAD WEAR - ONE
SHOULDER
Axle damage
Straighten or replace axle
OVERLOAD TREAD WEAR
Overloading
Check tire load rating
High speeds
Adjust speed according to road and load
conditions
Incorrect dual matching
Properly match dual tires
TIRE FLAT SPOTS
Quick stops
Adjust braking practices
Grabbing brakes
Adjust brakes properly
Worn or loose wheel bearings
Adjust or replace as needed
Out of balance wheels and tire
Balance wheels and tires.
UNEVEN WEAR
Undercarriage bushings worn
Replace bushings
Worn or loose wheel bearings
Adjust or replace as needed
Out of balance wheels and tires
Balance wheels and tires
RIM FAILURE: IN ALL INSTANCES OF RIM FAILURE, REPLACE THE RIM IMMEDIATELY
!
CRACKING
Overinflated tires
Deflate tire to proper PSI
High speeds
Adjust speed according to road and load
conditions
High speed cornering
Adjust cornering practices
Over loading
Check rim load rating
BENDING OR WARPING
Curb-hopping or potholes
Adjust turning practices and adjust speed
accordingly with road conditions
Improper tightening sequence
Follow proper tightening sequence
BROKEN STUDS
Over tightening
Use correct torque when mounting
REPLACE BROKEN STUDS BEFORE USING THE SEMITRAILER!
TRAILER TRACKING PROBLEMS:
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
Содержание 345D
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Страница 22: ...3 10 F 482 0510 Edition OPERATING INSTRUCTIONS Figure 3 4 Steps for Loading and Unloading...
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Страница 41: ...MAINTENANCE AND LUBRICATION 4 11 Figure 4 5 Examples of Camber Figure 4 6 Checking Axle for Bend...
Страница 46: ...4 16 F 482 0510 Edition MAINTENANCE AND LUBRICATION Figure 4 10 Axle and Brake Assembly...
Страница 62: ...5 8 F 482 0510 Edition TROUBLESHOOTING Notes...
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