GMC 4000 Series Service Manual page 44

Figure 14— Door H andle Installation
DOOR OUTSIDE HANDLE
REPLACEMENT
REPLACEMENT (Fig. 14)
1. Remove the access panel from lower por­
tion of door as directed previously under "Door
A ccess Panel Replacement."
2. Roll window to top of door, then using a
7/16-inch wrench, reach up through access open­
ing and remove two lock-type screw and washer
assem blies which attach handle to door. Remove
handle and handle gaskets.
3. Install door handle, using procedures in
reverse of handle removal. Make sure the handle
reinforcement plate is in position, inside of door
at handle mounting.
DOOR HANDLE PUSH BUTTON AND
SHAFT REPLACEMENT
DISASSEMBLY (Fig. 15)
1. Remove handle from door as directed pre­
viously under "Door Outside Handle Replacement."
2. Remove the button shaft retainer by first
depressing, then rotating retainer as shown in
figure 16. Remove shaft spring and button assem ­
bly with O-ring seal from handle.
ASSEMBLY
1. Place button assembly with installed O-ring
seal in handle.
2. Locate spring over button shaft, then install
spring retainer (fig. 16).
G M C S E R V I C E M A N U A L
REMOVAL (Fig. 17)
from edge of door.
inder must be rotated and tilted slightly to permit
cylinder lug to disengage from lock mechanism
stud. Remove lock cylinder gasket.
INSTALLATION (Fig. 17)
insert cylinder into door to engage cylinder lug
over lock mechanism stud within door.
CONVENTIONAL CAB
Figure 15— Door Handle Disassembly
DOOR LOCK CYLINDER
REPLACEMENT
1. Using flat blade screwdriver, pry retainer
CAUTION: HOLD ON TO R E T A IN E R
WHEN REMO VING AS R ETA IN ER MAY
F L Y FROM POSITION.
2. Remove the lock cylinder from door. Cyl­
1. With gasket in position on lock cylinder,
2. While holding cylinder in door, force the
Figure 16— D ise n g a g in g H an d le Sp rin g Retainer
Sec. 1
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