Cab Mountings - Chevrolet 40 SERIES 1971 Service Manual

Sec. 1C-38
STEEL TILT CAB
Figure 2 —Releasing Cab Hold-Down M echanism
o u te r and in n e r cab paneling and is d is p e rs e d to
h e a te r and vent o utlet.
C ab is th re e -p o in t m ounted to c h a s s is . W eight
of cab at fro n t is su p p o rte d on cab rig h t and left
tilt hinges and a su p p o rt b ra c k e t having ru b b e r
cu shio n s, su p p o rts cab a t r e a r c e n te r. Cab tilt hold-
down m echanism lo ck s cab firm ly on cu sh io n s.
The u n d e rsid e of cab is com pletely in su la te d
to deaden sound and p re v e n t c o rro s io n . A ru b b er
w e a th e rs trip around p e r im e te r of door is u se d for
sea lin g door to cab opening.
CAB TILTING INSTRUCTIONS
TO RAISE CAB (F ig. 2)
IMPORTANT: B e fo re tiltin g cab fo rw a rd , r e ­
move lo ose a r tic le s in cab; a lso p la ce tr a n s m is ­
sio n sh ift le v e r in n e u tra l and apply hand b ra k e .
1. C lose both d o o rs of cab.
Sill Brackets
ft
-TT / • ^ r ' ' * r x i ^ i u
, "0 Frame Bracket
Check Link and
Release Rod
CAB FRONT M OUNTING
2. At rig h t r e a r of cab rem o v e safety chain
hook.
3. W hile holding safety catch r e le a s e ro d to
th e rig h t, p u ll hold-dow n r e le a s e le v e r out and up­
w ard un til hold-down ca tc h becom es disengaged
and r e a r of cab r a is e s fro m m ount (fig. 2). T ilt
the cab com pletely fo rw a rd u n til check link at rig h t
fro n t m ounting locks cab safely in fu ll-tiltp o s itio n .
IMPORTANT: Make s u re check link is p r o p e r ­
ly engaged w ith fra m e an ch o r pin.
TO LOWER CAB (Fig. 2)
IMPORTANT: B e fo re low ering the cab to o p e r­
ating p o sitio n , m ake s u r e tra n s m is s io n sh ift le v e r
is in n e u tra l p o sition and th at hand b ra k e le v e r is
in the applied p o sitio n .
1. R e le a se check lin k at rig h t fro n t m ounting
(see in se t, fig. 2) by pulling re a rw a rd on link r e ­
le a s e rod, then pull cab back to o p eratin g p o sitio n .
2. Safety catch at r e a r of cab w ill a u to m atic ­
ally becom e engaged. P u ll downward on hold-dow n
re le a s e le v e r and engage low er end of le v e r in
le v e r sp rin g catch, b rac k e t-m o u n ted to r e a r of cab.
3. Engage safety hook through m atching holes
in clip b ra c k e t and lug on le v e r by in s e rtin g the
chain hook fro m u n d e rsid e .
NOTE: The ra isin g and low ering effort of cab
can be ad ju sted a s d e s ire d by m eans of re lo c a tin g
to rs io n b a r an chor le v e r at left fra m e b ra c k e t. If
re q u ire d , m ake ad justm ent a s d ire c te d la te r u n d er
"T o rsio n B a r T ension A d ju stm en t."
Cab is th re e -p o in t m ounted w ith two p iv o t-ty p e
m ountings a t fro n t and twin cu shion-type m ountings
a t r e a r . R e fe r to fig u re 3 fo r ty pical view s of
m ountings.
Cab Rear Support
Cab Rear Mounting]
Cushions
Left
Frame Bracket
Figure 3 —Cab M ountings

CAB MOUNTINGS

, Lubrication Fitting
Cab Hold-Down Catch
Return Spring
Hold-Down Catch
Safety Cate
Safety Catch
Release Rod
Release Rod Lever
Check Link
Release Rod
CAB REAR M OUNTING
CHEVROLET 40-60 TRUCK SERVICE MANUAL
Release Rod