GMC 4000 Series Service Manual page 43

Sec. 1
Page 36
CONVENTIONAL CAB
Figure 11 — D oor Check Installed
2. Apply cement to cab flange surfaces, then
position seal to cab. Referring to figure 12, note
the installed position of seal ends of the door
weatherstrip. Also note the position of the cut ends
of weatherstrip in cab opening.
3. After installing weatherstrip in cab opening,
install sill plate.
NOTE: An application of silicone lubricant or
equivalent to weatherstrip and adjacent contact
Figure 12— D oor W eatherstrip Installed
G M C S E R V I C E M A N U A L
areas will prevent weatherstrip from sticking or
freezing between cab and door.
REMOVAL (Fig. 13)
tainer seal groove with a pointed tool, then pull
insert completely out of seal.
edge of access panel, then run hook along panel to
force panel out of rubber seal.
sharp. Do not attempt to perform operations
through opening unless sharp edge is removed or
covered with tape.
INSTALLATION (Fig. 13)
door.
end of tool in panel groove of seal, move tool
around panel to force outer lip of seal over edge
of panel.
handle and loop of installer tool (fig. 13). Push tool
loop and end of insert into groove of seal. Feed in
rubber insert, while proceeding around panel. Use
a hitching movement of tool to avoid elongation of
insert. If new insert strip is being used, cut off
insert allowing sufficient overlap for a tight joint,
then butt into seal groove.
Figure 13— Installing Access Panel Insert
DOOR ACCESS PANEL
REPLACEMENT
1. Pry end of small rubber insert out of re­
2. Engage hook end of tool (J-2189) under
3. Pull seal from door.
IMPORTANT: Inside edge of opening may be
1. Position rubber seal around opening in
2. Place access panel to seal, then with hook
3. Thread end of small rubber insert through