Komatsu WA250PT-5H, Operation & Maintenance Manual

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Precautions for operation
SAFETY
Operation
2-20
Prohibited operations 0.
It is dangerous to excavate the bottom of a rock face. Never
do this.
It is dangerous to use the bucket or lift arm for crane opera-
tions, so do not carry out such operations.
Do not pass the bucket over the head of other workers or
over the operator's seat of dump trucks or other hauling
equipment. The load may spill or the bucket may hit the
dump truck and cause serious injury or property damage.
Emergency lowering system 0.
When the engine is not running, you can lower the work unit by
means of the pilot control lever.
PPC control lever
To achieve this, slowly press the pilot control lever (2) forward
to the "LOWER" position.
EPC control lever
1. Turn the key in ignition switch (1) to ON.
2. Then slowly press the pilot control lever (2) forward to the
"LOWER" position.
9JA04954-2A
2
9JA04954-1A
2
1