Chevrolet 1980 Light Duty Truck Service Manual page 149

Fig. 2 D - 6 8 - L a t c h e s and Rods
16. Reverse the above steps for reassembly.
ELECTRIC W IN D O W (16) MODELS
The window is controlled by a jackscrew mounted to
the regulator, drive cable and a 12V DC reversible motor
mounted to the endgate inner panel. This circuit also
includes a block out switch to prevent operation of the
window while the endgate is open (fig. 2D-75).
Service procedures for endgate disassembly are the
same as outlined above with the following exceptions:
Drive Cable
The drive cable can be replaced by disengaging the
cable from the motor and jackscrew assembly and removing
the cable. Reverse removal procedure to reinstall cable.
M otor (Fig. 2D-76)
Removal
1. Disconnect drive cable from motor.
2. Disconnect wiring harness from motor.
3. Remove (3) motor attaching screws and remove
motor.
Fig. 2D-69--Re moving Side Latch
4. To install, reverse removal procedure.
Blockout S w itch (Fig. 2D-75)
Removal
1. Disconnect L.H. side latch remote control rod from
center control by removing retaining clip.
2. Remove side latch retaining screws and disconnect
blockout switch wiring.
3. Remove side latch assembly and remove screws
retaining switch to side latch.
4. Reverse removal procedures for installation.
Jackscrew (Fig. 2D -76)
Removal
For endgates with electric window, secure the window
regulator lift arms before removing the jackscrew when the
window glass has been removed or disengaged from the lift
arms.
CAUTIO N: Step 1 must be performed if
the w indow is removed or disengaged
from the regulator lift arms. The lift arms
Fig. 2D-7 1-R em oving Control Assembly and Inside Handle
BODY 2D -25
LIG H T T R U C K S ER V ICE M ANUAL