Komatsu PC88MR-10 Shop Manual page 1243

5) When the bottom of the front window
reaches the top of lower window, push the
top of the front window to front lock catches
(36) and engage the lock.
6) Check that lever (3) is securely at LOCK
position.
a Check that the arrow on lock case (7) is
aligned with that of lever (3).
7) Turn battery disconnect switch to ON
position.
8) Check that the work equipment lock lever is
in LOCK position and start the engine.
9) Check the operation of the wiper arm with the
front window dried.
1] Press the wiper switch (37) three times
continuously, and check that the wiper
arm (27) swings one round-trip, and then
is stored in the part (e) of the R.H. stay.
PC88MR-10
50 Disassembly and assembly
Cab and its attachments
2] Perform step 1] again.
a Between steps 1] and 2], the rotation
direction of the motor crank is different.
Therefore, check the operation 2
times.
3] When the tip of wiper blade (35) is at the
highest position by pressing wiper switch
(37), check that clearance (b) between
trim seal (38) and wiper is the following
dimension.
Dimension (b): Max. 130 mm
50-215