Komatsu PC88MR-10 Shop Manual page 1242

50 Disassembly and assembly
Cab and its attachments
a The state is as the following drawing when
storing the wiper arm (wiper switch to OFF
position).
5. To check the wiper arm operation, preform the
following works.
1) Connect connectors M05 (24) and P31 (14).
50-214
2) Hold knob (8) and install lower window (9).
3) While holding grips (2) on the right and left of
the front window set to the ceiling, pull down
lever (3) to release the lock.
4) Securely hold lower grip (4) by left hand and
upper grip (5) by right hand, and slowly push
down them forward.
a Check that the bottom of the front window
does not touch the wiper arm.
PC88MR-10