Komatsu PC1250-11, Original Instructions Manual

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MACHINE OPERATIONS AND CONTROLS
CHECKS AND ADJUSTMENT BEFORE STARTING ENGINE
METHOD FOR WALK-AROUND CHECK
Walk around the machine and look at the underside of chassis for anything unusual like loose bolts and nuts,
leakage of fuel, oil and coolant before starting the engine. Also check the condition of the work equipment and
the hydraulic system.
Check also for loose wiring, play of wiring, and accumulation of dust in places that get very hot and are exposed
to extremely high temperatures.
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WARNING
Any combustible materials accumulated around the exhaust pipe, aftertreatment devices, turbocharger,
or other high temperature engine parts or the battery, and leakage of fuel or oil will cause the machine
to catch fire.
Check carefully, and if any abnormality is found, repair it or contact your Komatsu distributor.
Perform the following inspections and cleaning every day before starting the engine for the day's work.
1.
Check for damage, wear, play in work equipment, cylinders, linkage, and hoses.
Check all of the work equipment, cylinders, linkage and hoses for cracks, excessive wear, and abnormal
play. If any problem is found, repair it.
2.
Remove dirt and debris from around the engine, battery, and radiator.
Check for dirt accumulated around the engine and radiator. Also check for combustible material (dry leaves,
twigs, etc.) around the battery, exhaust pipe, aftertreatment device, turbocharger, or other high temperature
engine parts. If any dirt or combustible materials are found, remove them.
3.
Check around the engine for coolant and oil leakage.
Check for oil leakage from the engine and coolant leakage from the cooling system. If any problem is found,
repair it.
4.
Check the fuel line for leakage.
Check for leakage of fuel or damage to the hoses and tubes. If any problem is found, repair it.
5.
Check the hydraulic component, hydraulic tank, hoses, and joints for oil leakage.
Check for oil leakage. If any problem is found, repair the leaking portion.
6.
Check the undercarriage (track, sprocket, idler, guard) for damage, wear, loose bolts, or leakage of oil from
rollers.
If any problem is found, repair it.
7.
Check the handrails and steps for problems and check the bolts for looseness.
If any problem is found, repair it. Tighten any loose bolts.
8.
Check the gauges and monitor for problem.
Check for problem in the gauges and monitor in the operator's cab. If any problem is found, replace the
part. Clean off any dirt on the surface.
REMARK
When cleaning the stains deposited on the monitor surface such as dusts, brush them off with a clean, soft
and dry cloth.
For sticky dirt such as oil, remove it with glass cleaner for family use on the market (weakly acid to weakly
alkaline, containing no abrasive), and then finish-wipe with a clean, soft, and dry cloth.
9.
Check and clean all mirrors
Check for damage to all mirrors. If there is damage, repair it. Clean the surfaces of the mirrors and adjust
the angle according to “METHOD FOR ADJUSTING MIRRORS”.
10. Check the seat belt and mounting hardware.
MACHINE OPERATIONS AND CONTROLS OPERATION
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