KIT-REGULATOR 3908987 - Caterpillar

When opening or closing the windows, be extra careful to prevent any personal injury. Also, the lever for the hydraulic lockout control must be in the LOCKED position to prevent any possibility of sudden movement of machine due to inadvertent contact with the hydraulic control(s).
Do not change the position of the window until the following items have been done:
Park the machine on a level surface.
Lower the implement to the ground.
Move the hydraulic lockout control to the LOCKED position.
Stop the engine.
Illustration 1 g00103209
The hydraulic lockout control is shown in the LOCKED position. For further details on this procedure, refer to Operation and Maintenance Manual, "Hydraulic Lockout Control".
Illustration 2 g00100974
This is a typical example of a front window .Upper Window
Perform the following procedure in order to open the upper window and close the upper window.
Hold both grips (2), and push both latches (1) in order to release the upper window. Lift the window upward until the window is securely latched in the overhead storage position.
Release latch (1) in order to lower window (C) from the overhead storage position.Lower Window
Perform the following procedure in order to open the lower window and close the lower window. The upper window is already open:
Squeeze latches (3) in order to release the lower window.
Raise the lower window out of the window frame.
Store the lower window in brackets (4) that are provided. The brackets are built into the upper window.
To close the lower window, reverse the procedure that is used for opening the lower window.Note: The lower window will only fit in the brackets by one way.Note: The upper window cannot be raised or lowered with the lower window in the storage brackets.Perform the following procedure in order to open the lower window and close the lower window. The upper window is closed:
Squeeze latches (3) in order to release the lower window.
Raise the lower window out of the window frame. The lower window will slide directly into the upper window.
To close the lower window, reverse the procedure that is used for opening the lower window.Note: The upper window cannot be raised or lowered with the lower window in the storage brackets.