3 PERIODICAL MAINTENANCE
– 79 –
8) As required
⑩
Tires : Wheel hub nut
Inspect the wheel hub nut to make sure it is not loose.
Retighten it if it is loose.
Tightening torque:
630N
•
m
Turn the wheel hub nut in the tightening direction during
inspection.
CAUTION
• Overtightening of the wheel hub nut may snap the bolt or cause cracks in the
disc wheel.
• Overtightening of the wheel hub nut may snap the bolt or cause cracks in the
disc wheel. Observe the prescribed tightening torque.
NOTE: Tighten the wheel hub nut 50 hours after purchase of a new machine or replacement
of tires.
Roll
The drum may wear down quickly and become damaged depending on the way it is used, or
on-site conditions. As with the tires, the drum too, must be inspected regularly.
⑯
Radiator
Clean the cooling fins.
In case dirt or dust is attached, clean the radiator, the oil cooler and the core with compressed
air or tap water.
It is to prevent performance decline of the cooling system.
WARNING
When cleaning the radiator fins, be sure to wear safety glasses, dust-proof masks
and other protective gear to prevent particles from entering the body through the
eyes, nose, etc.
IMPORTANT
• If the discharge rate of compressed air or tap water is too high, it can damage
the radiator or the fins of the oil cooler. Keep a distance of 500mm or more
between the nozzle and the core surface.
• Don’t use any driver or steel spatula (or paddle). If it rubs the fins, it can damage
the tubing.
• Clean the inside when replacing the engine coolant, too.
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