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12.10.4 PRECAUTIONS WHEN DRIVING MACHINE
When the machine travels at high speed for a long distance, the
tires become extremely hot. This causes early wear of the tires, so
it should be avoided as far as possible. If the machine must be driven
for a long distance, take the following precautions.
‡ Follow the regulations related to this machine, and drive care-
fully.
‡ Before driving the machine, carry out the checks before starting.
‡ The most suitable tire pressure, travel speed, or tire type differ
according to the condition of the travel surface. Contact your
Komatsu distributor or tire dealer for information.
‡ The following is a guide to suitable tire pressures and speeds
when traveling on a paved surface with standard tires.
12. OPERATION 12. OPERATION
WA20 WA30 WA40, 50
Air pressure All wheels All wheels All wheels
MPa (kgf/cm
2
) 0.18 (1.8) 0.2 (2.0) 0.18 (1.8)
‡ Check the tire pressure before starting, when the tire is cool.
‡ After traveling for 1 hour, stop for 30 minutes. Check the tires
and other parts for damage; also check the oil and coolant levels.
‡ Always travel with the bucket empty.
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