Operational Checkout Procedure
UPPER FRONT WINDOW
YES: Go to next check.
NO: Inspect. Repair. Go
to Group 1810.
C--Cab Frame Rear Holes
NOTE: The upper right window lock pin is also used to close the windshield wiper
enable switch so windshield wiper can operate. When window is closed, check that
lock pins engage holes in cab frame and are turned to engage lock.
Turn lock pins (A) and pull towards center of window.
Pull window up and back until it catches in rear latch (B) for convenient storage
Slide the two lock pins into the cab frame rear holes (C) and turn to lock.
Do pins move smoothly to lock and unlock window?
Does rear latch operate freely?
Do pins engage cab frame boss holes and lock window securely in full open position?