Check And Tighten Wheel Nuts; Check Electrical Intake Air Heater; Check Alternator - Komatsu PW160-7K Series Operation And Maintenance Manual

SERVICE PROCEDURE

CHECK AND TIGHTEN WHEEL NUTS

Order for tightening
Tighten the bolts in the order shown in the diagram. Torque to
80kgm.

CHECK ELECTRICAL INTAKE AIR HEATER

Before the start of the cold season (once a year), contact your
Komatsu distributor to have the electrical intake air heater
repaired or checked for dirt or disconnections.

CHECK ALTERNATOR

GENERAL
The alternator requires no lubrication since its bearings are fac-
tory lubricated for life and require attention only at the time of
major overhaul.
The alternator is equipped with an integral, transistorized voltage
regulator. If the alternator fails to operate properly, consult your
distributor.
PRECAUTIONS
REMARK
The unit electrical system is negative ground. Be CERTAIN
the ground polarity is correct when:
a. Installing a new battery.
b. Connecting a battery charger.
c. Using a booster.
Failure to observe proper polarity will result in damage to the
alternator.
NEVER use a fast charger as a booster to start the engine.
NEVER unhook a battery terminal while the engine is running.
NEVER disconnect the alternator cable while the engine is run-
ning.
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MAINTENANCE