022-00028AE Operation and Maintenance Manual
Inspection, Maintenance and Adjustment 4-57
TIRES AND WHEELS
Properly inflated tire (2, Figure 103) is an
important factor in determining tire performance
and tire life. A tire that is under-inflated (1,
Figure 103) does not properly support machine,
and will wear out quickly. Over-inflated tires (3,
Figure 103) have poor traction and puncture
easily.
Use a pressure gauge to measure tire pressure.
Always measure tire pressure before machine
has been working, when tires are cold. Use
table below to determine correct pressure for
front or rear tires when driving machine, or when
working machine.
Check tires for damage and embedded objects.
Check valve stems for damage.
WHEEL NUT TORQUE
Tighten wheel nuts to 58 - 62 kg•m (420 - 448 ft
lb).
Tire Dimension
Working Pressure
Driving Pressure
Remarks
Front Tire
Rear Tire
Front Tire
Rear Tire
17.5-25-12PR (L2)
(Standard)
3.25 kg/cm
2
(46 psi)
3.0 kg/cm
2
(43 psi)
2.5 kg/cm
2
(36 psi)
2.0 kg/cm
2
(29 psi)
Bias Ply Tire
(Standard)
20.5-25-12PR (L2)
(Option)
3.5 kg/cm
2
(50 psi)
3.3 kg/cm
2
(47 psi)
2.8 kg/cm
2
(40 psi)
2.0 kg/cm
2
(29 psi)
Bias Ply Tire
(Option)
WARNING!
If a wheel and tire must be removed from
machine and replaced, or if a tire must be
replaced on wheel, allow this task to be
performed only by experienced service
personnel. A tire rim could be propelled
off wheel and cause serious bodily injury
or death. See Figure 104.
Figure 103
Figure 104
