Komatsu WA470-6 2006, Руководство по эксплуатации и техническому обслуживанию

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Operation 3.3 Operation
WA470-6H – VEAM946100
3-111
Normal operation
After starting the engine, do not immediately start operations.
First, carry out the following operations and checks.
NOTE
Do not suddenly accelerate the engine before the warming-up
operation is completed.
Do not run the engine at low idling or high idling continuously for
more than 20 minutes.
If it is necessary to run the engine at idling, apply a load from
time to time or run the engine at a mid-range speed.
1. Immediately after starting the engine, without depressing the
accelerator pedal (1), run the engine at idle for at least 10
seconds during the warm weather and for at least 15 sec-
onds during the cold weather.
2. Depress accelerator pedal (1) lightly and run the engine with
no load at midrange speed for about 5 minutes.
To warm up the hydraulic oil in cold areas, do as follows.
3. After completing the warming-up operation, check that the
engine rotation is smooth, then check that the work equip-
ment control lever is at the HOLD position and set safety
lock lever (2) to the FREE position.
4. Operate work equiment control lever (3) to TILT position (a)
and return it to HOLD position (b) to warm up the hydraulic
oil.
The relief time at the tilt position (a) should be a maximum of
10 seconds.
With this operation, the oil will reach the relief pressure and
this will warm up the hydraulic oil more quickly.
5. Slowly operate the steering wheel to the left and the right
about 10 minutes to warm up the hydraulic oil inside the
steering valve.
GK038083
1 2
3
GK038082
GK038084
2
Free
Lock
3
a b