Komatsu PC220LC -8 Operation & Maintenance Manual page 135

DETAILED CONTROLS AND GAUGES
Opening
1. Stop the machine on level ground, lower the work equipment completely to the ground, then stop the engine.
2. Set the lock lever (1) securely to the LOCK position (L).
3. Check that the wiper blade is stowed in the right stay.
4. Hold 2 grips (A) on the left and right top sides of the front
window, and pull the 2 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