5-2 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,
See Sections 4-4, 4-6, 4-7, 4-9, 4-10, 4-11
.
SYMPTOM
PROBLEM: REMEDY
VIBRATIONS WHILE DRIVING
Improper tire inflation:
inflate to proper pressure.
Tires cupped or have flat spots:
replace tires.
Wheels bent or loose:
replace or tighten.
Tires incorrectly mounted:
remount.
Mud in wheels:
clean wheels.
Tire(s) out of balance:
balance tires.
Brakes dragging:
locate cause and repair.
Object(s) stuck between duals:
remove object(s).
RAPID TIRE WEAR/DETERIORA-
TION:
CENTER TREAD WEAR
Over inflation:
deflate to correct inflation.
SHOULDER TREAD WEAR -
BOTH SHOULDERS
Under inflation:
increase inflation to correct PSI. Check axle
alignment.
Overload:
loads are above rated tire capacity. DO NOT load
above rated tire capacity.
SHOULDER TREAD WEAR - ONE
SHOULDER
Axle damage:
straighten or replace axle.
Axles not parallel:
check axle alignment.
OVERALL TREAD WEAR
Overloading:
check tire load rating.
High speeds:
adjust speed according to road and load condi-
tions.
Incorrect dual matching:
properly match dual tires.
Front and rear axle suspension air bags not inflated:
Adjust
front and rear axle ride height control valves to proper settings
(See Section 4-6.4)
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.
Check ABS system function.
Front and rear axle suspension air bags not inflated:
Adjust
front and rear axle ride height control valves to proper settings
(See Section 4-6.4)
UNEVEN WEAR
Suspension bushings worn:
replace bushings.
Worn or loose wheel bearings:
adjust or replace as needed.
Out of balance wheels and tires:
balance wheels and tires.
5-2
Summary of Contents for 600B Series
Page 8: ......
Page 12: ......
Page 14: ...3 2 Figure 3 1 Front Trailer Terminology Figure 3 2 Rear Trailer Terminology...
Page 18: ...3 6 Figure 3 4 Hydraulic Controls...
Page 26: ...3 14 Figure 3 7 Steps for Loading and Unloading...
Page 32: ...3 20 Figure 3 10 Dock Leveler Operation...
Page 38: ...3 26 Figure 3 14 Rear Impact Guard and Antilock Brake System...
Page 42: ...4 2 Figure 4 1 Lubrication Points...
Page 48: ...4 8 Figure 4 3 600B Wiring Diagram...
Page 49: ...4 9 Figure 4 4 Remote Wiring Diagram...
Page 52: ...4 12 Figure 4 5 Tandem Axle Air Ride Suspension System Figure 4 6 Air Ride Height Adjustment...
Page 54: ...4 14 Figure 4 7 Triple Axle Air Ride Suspension System...
Page 57: ...4 17 Figure 4 9 Checking Axle Alignment Figure 4 10 Examples of Camber...
Page 61: ...4 21 Figure 4 13 Axle and Brake Assembly...
Page 71: ...4 31 Figure 4 21 Dock Leveler Leg Assembly...
Page 73: ...4 33 Figure 4 22 Crank Landing Gear Assembly...
Page 84: ...NOTES 5 10...
