GMC 1982 Light Duty Truck Service Manual page 41

1A-18 HEATER
M31H.! g'lTTI
Rire.ia^»
TnH .' r ^'m
r u n r u
im
FUSE PANEL
Fig. 1 A-22-C ontrol Mounting
2 9840 9 2
,3 W H T -9 5 2
3 B RlVW HT-5
rE L-51
LT B lU -7 2
890 542 6
G Series
Fig. 1A -2 1 --Electrical Diagram
O N VEHICLE SERVICE
included with the auxiliary h eater unit, replacem ent
procedures will not be repeated in this section.
a 1/2 in. minimum clearance between hose clip and upper
control arm, a 1-1/2 in. minimum clearance between hoses
and propshaft and a 1-1/4 in. minimum clearance between
the auxiliary heater core lines and the exhaust pipe as shown
in Fig. 1A-24. All M od els-D raw hoses tight to prevent sag
or rub against other components. Be sure to route hoses
through all clamps as originally installed.
8 9 0 5 4 2 6
•3 B R lV W H T -5 0 —
■ 3 W H T -9 5 2 A -
LT B LU -72 —
YEL-51
2 9 8 9 5 7 6 GROMMET-
Since a detailed list of installation instructions is
On G M od els-W h en replacing heater hoses, maintain
L..
2973781-
1 - 3
B R N /W H T -5 0 -
- 3 W H T-952A -
----- 2 W H T-952B -