5-2
F-944-1017 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 4-17
• “Wheel Bearing Lubrication and Adjustment” on
• “Tire Maintenance” on page 4-20
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
“Tire Inflation” on page 4-20.)
SHOULDER TREAD WEAR - ONE
SHOULDER
Axle damage
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
and Drum Maintenance” on
page 4-17.)
Out of balance wheels and tire
Balance wheels and tires.
UNEVEN WEAR
Undercarriage bushings worn
Replace bushings
Drum Maintenance” on page 4-17.)
Worn or loose wheel bearings
Adjust or replace as needed
and Drum Maintenance” on
page 4-17.)
Out of balance wheels and tires
Balance wheels and tires
RIM FAILURE: IN ALL INSTANCES OF RIM FAILURE, REPLACE THE RIM IMMEDIATELY
!
Summary of Contents for 345F
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Page 22: ...3 10 F 944 1017 Edition OPERATING INSTRUCTIONS Figure 3 4 Steps for Loading and Unloading...
Page 30: ...3 18 F 944 1017 Edition OPERATING INSTRUCTIONS Page Intentionally Blank...
Page 44: ...4 14 F 944 1017 Edition MAINTENANCE AND LUBRICATION Figure 4 8 Axle and Brake Assembly...
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