Komatsu PC400LC-5 Operation & Maintenance Manual page 92

3.
4.
5.
Set the safety lock lever @ to the FREE position, and raise the
bucket from the ground.
Operate bucket control lever @ and arm control lever @ slowly
to move the bucket cylinder and arm cylinder to the end of the
stroke.
Carry out bucket and arm operation for 5 minutes at full stroke,
alternating between bucket operation and arm operation at 30
second intervals.
If the
swing
lock switch @ is set to the ON (actuated) position and
swing control lever @ is operated at full stroke, oil temperature-
rise can be increased earlier.
NOTICE
When the work equipment is retracted, take care that it does
not interfere with the machine body or ground.
After carrying out the warming-up operation, check that each
gauge and monitor lamp is in the following condition.
Engine water temperature gauge 0: Inside green range
Fuel gauge 0: Inside green range
Engine water temperature monitor @: OUT
Radiator water level monitor @: OUT
Engine oil pressure monitor 0: OUT
Charge level monitor 0: OUT
Fuel level monitor 0: OUT
Engine pre-heating lamp @: OUT
Engine oil level monitor 0: OUT
Hydraulic oil level monitor @: OUT
Check that there is no abnormal exhaust'gas color, noise, or
vibration. If any abnormality is found, repair it.
AE097640
Forward of
the machine
2-46