UPPER FRONT WINDOW
YES: Go to next check.
NO: Inspect. Repair.
Move lock pins (A) toward center of window.
Pull window up and back until it catches in latch (B) for convenient storage overhead.
Slide the two lock pins (C) into the cab frame boss holes and turn to lock.
Do pins move smoothly to lock and unlock window?
Does rear latch operate freely?
Do pins engage rear holes and lock window securely in full open position?