Komatsu PC290LC-11 Operation & Maintenance Manual page 173

OPERATION
When closing
When closing the window, lower it slowly and be careful not to get your hand caught.
1.
Stop the machine on a level ground, lower the work equip-
ment to the ground, then stop the engine.
Set lock lever (1) securely to LOCK position (L).
2.
Grip right and left handles (A), and pull down lever (B) to
release the lock.
3.
Grip the handle (C) at the bottom of the front window with
your left hand and the handle (D) at the top with your right
hand, push the window to the front, then lower it slowly.
REMARK
The handles (A) on the right and left top sides of the front
window are not for pulling up and down the window. Do not
pull down the front window with the handles (A).
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CAUTION
EXPLANATION OF COMPONENTS
3-101