CAB A N D BO DY M O U N T IN G S 1-20
Striker Bolt Height Adjustment
This adjustment is important to assure that
the right proportion of door's weight will rest on
striker bolt when door is closed. If bolt is posi
tioned too high on pillar, rapid wear will occur to
the lock cam; if too low, an extra load will be
placed on door hinges as well as pull door down
ward and out of alignment. Tighten striker bolt.
Generally the striker bolt height adjustment
can be checked quite accurately by just sighting
the center of " V " slot on door with the center of
striker bolt as illustrated in figure 8. However,
to make a more positive check, perform the fol
lowing:
1. Mark a horizontal line through center of
" V " slot and on door lock cam as shown in left
view of figure 10.
2. Smear some grease or paint on contac
edge of lock cam as shown in same view.
3. Slowly close door until cam barely contacts
the striker bolt to leave an impression in grease.
Open door and check contact mark on edge of cam.
Mark should be located approximately 1/ 16-inch
below the horizontal mark if properly aligned.
4. If necessary, raise or lower the loosened
striker bolt up or down by tapping on the washer
or spacer at base of striker bolt as shown in fig
ure 9. D O N O T TA P O N H E A D O F B O L T .
N O T E : If striker bolt reaches end of adjust
ment travel it will then be necessary to add or
remove shims at the door hinges.
After obtaining proper height adjustment, pro
ceed to make "Door Rear Edge "In" or "Out" A d
justment."
Door Rear Edge "IN " or " O U T " Adjustment
This adjustment is for purpose of aligning the
rear surface of door flush with adjacent surfaces
of cab. If surfaces are not flush, proceed as follows:
1. Mark a horizontal line on cab pillar at top
of striker bolt base washer or spacer.
2. Loosen striker bolt slightly, then tap against
bolt base washer, to move bolt "in" or "out” as
necessary to locate door surface flush with cab
surface when door is closed. Before tightening the
striker bolt make sure top of bolt base washer is
contacting the horizontal mark on cab pillar. Final
tighten striker bolt.
N O T E : Two rubber bumper blocks are insert
ed into door rear edge panel to absorb closing
shock and to limit the "in" adjustment. If bumper
blocks are deteriorated or damaged otherwise, they
should be replaced. Pull blocks from door to re
move. A flat-bladed tool, such as a putty knife,
can be used for installing blocks in manner shown
in figure 11.
Figure 1
4 — Installing Access
Panel
Insert
DOOR CHECK REPLACEMENT
SMPOiTANT
Do not allow d
the normal full-op
check strap is dise<
N O T E : Refer to figure 12.,
1. Using a small punch, drive Bp ring p v
from bottom of strap bracker.
2. Remove the two sere
blies which attach the e.hec’
Remove check assembly.,
Figure 15— Dour Hundfa fasfofejic-ti
CHtvRo;.E> seuiss 70-«a
heaw
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Summary of Contents for 70 1969 Series
Page 1: ...CHEVROLET HEAVY DUTY TRUCK SHOP MANUAL...
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Page 11: ...LUBRICATION 0 4 CHEVROLET SERIES 70 80 HEAVY DUTY TRUCK SHOP MANUAL...
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