GMC 4000 Series Service Manual page 65

Sec. 1
Page 58
TILT CAB
Figure 2 0 — Rem oving Door W in d o w Class
3. While holding regulator assembly through
opening in door, remove four screws (figs. 16 and
17) which attach regulator assembly to door inner
panel.
4. Guide regulator arm to remove roller from
window channel track (fig. 18). Carefully lower
regulator assembly from door (fig. 19).
INSTALLATION
Install door window regulator in reverse order
of "Removal" procedures. Before installing access
door, operate window regulator to be sure roller
is not binding in window channel track. If binding
occurs, bend window regulator arm slightly until
roller turns freely in channel. Also, check division
and run channels for alignment.
G M C S E R V I C E M A N U A L
A S SE M B L Y
REMOVAL
below vent window.
trim panel to door just below vent window.
divisional channel screw (fig. 16).
taching screw s (fig. 16).
door (fig. 16).
attach run channel to door (figs. 16 and 17).
lator assembly as described previously (figs. 18
and 19).
er access opening (fig. 20).
INSTALLATION
sides of glass to soften seal. Remove glass from
channel when filler is sufficiently soft.
by removing all rust and old glazing rubber filler.
length of glass regulator channel.
side away from glass) on bottom edge of glass
1.24-inch from lower corner as shown infigure 21.
channel 1.24-inch from lower right corner (fig.
21) and then press channel over glass and glazing
DOOR W IN D O W GLASS
REPLACEMENT
1. Remove access panel from door inner panel
2. Unlatch vent window and swing outward.
3. Remove five screw s which attach access
4. Remove frame to door screw and frame to
5. Remove three division channel lower at­
6. Remove division channel screws at top of
7. Remove two screws at edge of door which
8. Lower window and remove window regu­
9. Tilt and lower glass assembly through low­
1. Squirt gasoline along glass filler on both
2. Thoroughly clean inside of glass channel
3. Cut new piece of glazing rubber filler to
4. Position glazing rubber filler (soapstone
5. Carefully position edge of glass regulator