Komatsu PC290LC-11 Operation & Maintenance Manual page 375

MAINTENANCE
Referring to "METHOD FOR SETTING MACHINE AT ANGLE", select a safe method, depending on the
state of the machine.
In this example, the machine is set at angle by using blocks.
2.
Swing the upper structure slowly so that water drain holes
(3) in the cab floor are at a low position.
3.
Lower the work equipment to the ground and set the ma-
chine in a stable condition.
4.
Set lock lever (1) to LOCK position (L) and stop the en-
gine.
MAINTENANCE PROCEDURE
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