Komatsu Utility 76243, Operation & Maintenance Manual

Page: 139 / 302

OPERATION
OPERATION
3-79
CHECK DUST INDICATOR
1. Check for the yellow piston overlapping the red zone on
the dust indicator (1).
2. If the yellow piston is overlapping the red zone, clean or
replace the element immediately.
For details of the method of cleaning the element, see
“CHECK, CLEAN AND REPLACE AIR CLEANER ELE-
MENT (4-24)“.
3. After checking, cleaning, and replacing, press the knob of
dust indicator (1) to return the yellow piston to its original
position.
q
In environments where the rubber deteriorates quickly
or the surface becomes damaged (in direct sunlight,
dusty areas, etc.), replace before it becomes dirty and
it becomes difficult to judge the condition.
CHECK ELECTRIC WIRING
WARNING
q
If fuses are frequently blown or if there is a short circuit in the electrical wiring, locate the cause and
repair or contact your Komatsu distributor.
q
Accumulation of flammable material (dead leaves, twigs, grass, etc.) around the battery may cause
fire, so always check and remove such material.
q
Keep the top surface of the battery clean and check the breather hole in the battery cap. If it is clogged
with dirt or dust, wash the battery cap to clear the breather hole.
Check for damage to the fuse, that a fuse of the specified capacity is being used, that there are no signs of any
disconnection, breakage, or short circuit in the wiring. Also check for loose terminals, and tighten any loose termi-
nals found.
Be sure to check wiring for the battery, starting motor, and alternator.
In addition, if any flammable material is accumulated around the battery, remove it.
For troubleshooting and repairs, contact your Komatsu distributor.