MAINTENANCE BASICS
7-15
ELECTRICAL SYSTEM
• Do not remove or modify electrical components installed in
the machine.
• Only install Komatsu Utility Corporation approved electrical
components.
• When cleaning the machine or during heavy rainfall, pay at-
tention that water does not get into the electrical system.
• If the wiring is wet or the insulation damaged, insulation
faults will occur in the electrical system leading to dangerous
malfunctions of the machine.
• When working in coastal areas, clean the system very thor-
oughly to avoid corrosion.
• Do not connect an external power source to fuses, the start
switch, or the battery relay.
• Maintenance of the electrical system comprises:
1. Checking the tension of the generator belt,
2. Checking the generator belt for damage and wear, and
3. Checking the acid level in the battery.
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