Komatsu WA200-8 Operation & Maintenance Manual page 334

MAINTENANCE PROCEDURE
Bias
Radial
METHOD FOR CHECKING AND INFLATING TIRE
• When pumping up the tires, check that no other person is standing near the tire, and install an air
chuck with a clip that can be secured to the air valve.
• To prevent the tire inflation pressure from becoming too high, measure the pressure from time to
time with an air gauge while pumping up the tire.
• When it is inflated, the rim parts may fly out, if they are not fitted properly.
Put a fence around the tire for protection. The worker must not stand in front of the rim but must
stand on the tread side during work.
• Abnormal drop of inflation pressure and abnormal fitting of the rim indicate a trouble in the tire or
rim. In this case, be sure to ask a tire repair shop for repair.
• Be sure to observe the specified inflation pressure.
• Do not adjust the tire inflation pressure immediately after traveling at high speed or operating under
heavy load.
Check the tire inflation pressure before starting work while the tires are cold.
When inflating a tire, use an air chuck which can be fixed to the air valve of the tire as shown in the figure.
Do not work in front of the rim but work on the tread side of the
tire.
1.
Measure the inflation pressure with a tire inflation pressure gauge.
2.
Adjust the inflation pressure properly.
The proper inflation pressure is shown below.
Bias
Radial 20.5R25☆ (L3 Rock)
4-42
Maximum load (kg)
Front tire: 6070
Rear tire: 6070
Front tire: 6775
Rear tire: 6775
Front tire: 8000
Rear tire: 8000
k k
Tire size
17.5-25-12PR
20.5-25-12PR
Front tire: 20.5R25☆ (L3 Rock)
Rear tire: 20.5R25☆ (L3 Rock)
WARNING
Standard inflation pressure
Front wheel: 300 kPa {3.0 kg/cm
Rear wheel: 300 kPa {3.0 kg/cm
Front wheel: 280 kPa {2.8 kg/cm
Rear wheel: 280 kPa {2.8 kg/cm
Front wheel: 350 kPa {3.5 kg/cm
Rear wheel: 350 kPa {3.5 kg/cm
MAINTENANCE
Tire size
Front tire: 17.5-25-12PR
Rear tire: 17.5-25-12PR
Front tire: 20.5-25-12PR
Rear tire: 20.5-25-12PR
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