Stop Engine Before Carrying Out Inspection And Maintenance; Two Workers For Maintenance When Engine Is Running - Komatsu D155AX-5 Operation & Maintenance Manual

PRECAUTIONS FOR MAINTENENCE

STOP ENGINE BEFORE CARRYING OUT INSPECTION AND MAINTENANCE

Stop the machine on firm, level ground.
Select a place where there is no hazard of falling rocks or
landslides, or of flooding if the land is low.
Lower the work equipment completely to the ground and
stop the engine.
After stopping the engine, operate the work equipment
control lever to the RAISE and LOWER positions 2 or 3
times to release the pressure remaining in the hydraulic cir-
cuit, then set the safety lock lever to LOCK position.
Put blocks under the track to prevent the machine from
moving.

TWO WORKERS FOR MAINTENANCE WHEN ENGINE IS RUNNING

To prevent injury, do not carry out maintenance with the engine
running. If maintenance must be carried out with the engine
running, carry out the operation with at least two workers and
do as follows.
One worker must always sit in the operator's seat and be
ready to stop the engine at any time. All workers must
maintain contact with the other workers.
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SAFETY