Chevrolet LIGHT DUTY TRUCK (SERIES 10-35) Service Manual page 41

1A-16 HEATER
■ ffl-----1
n
m e d
J , ' :
BAT_____
BLOWER
SWITCH
n
M 12 BRN
c
------16 BRN{50B l
"CK" IG N # 3 -3 0 0 UNFUSED
"G " IGN ACC#4 FUSED
FUSE
PANEL
Since a detailed list of installation instructions is
included with the auxiliary heater unit, replacement
procedures will not be repeated in this section.
CAUTION: G Models--When replacing
heater hoses, maintain a 1/2" minimum
clearance between hose clip and upper
control arm, a 1-1/2" minimum clearance
between hoses and propshaft and a 1-1/
4" minimum clearance
LIG H T TR U CK SERV ICE M ANUAL
CIRCUIT
OFF BAT-ONLY
LO
BAT-LO
LO
MED BAT-MED
MED
HI BAT-HI
HI
I
-14 ORN-
-14 YEL-
15 AMP
INLINE FUSE
Fig. 1A-21--Electrical Diagram - All Models
ON VEHICLE SERVICE
between the
HEATER OPERATION
6A T-B L0 SW-RES Rl R2-
BLO MTR-GRD
B A r s r a sw-ftts R i-
BLO MTR-GRD
s w :.............
baT-BLO
BLO MTR-GRD
-14 LBL-
auxiliary heater
exhaust pipe as shown in Figure 1A-23.
All Models-Draw hoses tight to prevent
sag or rub against other components. Be
sure to route hoses through all clamps as
originally installed.
f A W v i !
Rl
v W r
BLOWER
R2
RESISTOR
BLO I
[Fi
51
iL
52A
52B
p f
14 ORN
i52iBl
[ 5 2 ]
14 B
— T52] | hf
BLOWER
GRD (o
MOTOR
core lines and the