Checks After Starting The Engine - Komatsu WA80M-7 Operation And Maintenance Manual

3.3 Operation

Checks after starting the engine

NOTICE

Do not rev up or load the engine suddenly before it has
warmed up.
 Do not run the engine unnecessarily at low or high idle speed.
If it is necessary to run the engine at idle for an extended
period, load the engine from time to time or let it run at
medium speed.

Confirm that the engine is running smoothly during the checks
after starting.
Do not start working immediately after starting the engine. Per-
form the following preparations and checks first:
1. Slightly depress the accelerator pedal and let the engine run
at medium speed and no load.
 Verify the proper functioning of all hydraulic cylinders with
the multi-function lever.
 Verify the proper functioning of the steering.
 To warm up the hydraulic oil, repeatedly tip the multi-func-
tion lever for the work equipment from the '0' (HOLD)
position to the 'E' (TILT) position and back at short inter-
vals. The multi-function lever should not be in the tilt posi-
tion for more than 10 seconds at a time.
 Then check the hydraulic system for leakage.
NOTICE
These checks also provide for a quicker warming-up of the
hydraulic oil.
2. During the checks, observe all gauges and caution lamps and
immediately repair any faults.
3. Check that the exhaust colour is normal and that the exhaust
pipe does not vibrate or sound abnormally. Repair any
defects.
4. Do not work under full load before reaching the operating
temperature. The coolant temperature gauge (1) must be in
the green.
3-68
Operation
G0010011
1
WA80M-7, WA100M-7 – VENAM03001