Komatsu WA20-2, Operation & Maintenance Manual

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1-7
7. PRECAUTIONS DURING
OPERATION
 WARNING: Failure to follow these safety
precautions may lead to a serious accident.
7.1 BEFORE STARTING ENGINE
SAFETY AT WORKSITE
‡ Before starting operations, thoroughly check the area for any
unusual conditions that could be dangerous.
‡ Examine the shape of the ground and the quality of the soil
at the jobsite, and determine the optimum method of opera-
tion.
‡ When working on public roads, position flagmen and erect
barriers to ensure the safety of passing traffic and pedestrians.
‡ In places where there are buried objects, such as water pipes,
gas pipes, or pipes for high voltage cables, contact the com-
pany in charge to confirm the position of the buried object,
and be careful not to damage the object during operations.
‡ When working in water or when crossing sand banks, first
check the condition of the ground and the depth and speed of
flow of the water. Be sure not to exceed the permitted water
depth.
Permissible water depth
➞
See “12.10 PRECAUTIONS FOR
OPERATION”.
FIRE PREVENTION
‡ Thoroughly remove wood chips, leaves, paper and other flam-
mable things accumulated in the engine compartment. They
could cause a fire.
‡ Check fuel, lubrication, and hydraulic systems for leaks. Have
any leaks repaired. Wipe up any excess oil, fuel or other
flammable fluids.
Check point
➞
See “12.1.1 WALK-AROUND CHECK”.
‡ Be sure a fire extinguisher is present and working.
‡ Do not operate the machine near any flame.
IN OPERATOR’S CAB
‡ Do not leave tools or spare parts lying around in the operator’s compartment. They may damage
or break the control levers or switches. Always put them in the tool box on the right side of the
machine.
‡ Keep the cab floor, controls, steps and handrails free of oil, grease, snow, and excess dirt.
‡ Check the seat belt, buckle and hardware for damage or wear. Replace any worn or damaged
parts. Always use seat belts when operating your machine.
Seat belts
➞
See “27. SEAT BELT”.
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