Komatsu PW98MR-10 Operation & Maintenance Manual page 178

EXPLANATION OF COMPONENTS
Opening
1.
Stop the machine on a level ground, lower the work equipment to the ground, then stop the engine.
2.
Set the lock lever to LOCK position (L).
3.
Check that the windshield wiper is in the right position.
4.
Hold two handles (A) on the right and left top sides of the
front window, and pull two levers (B) to release the locks at
the top of the front window. The top of the front window will
come out.
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OPERATION