Chevrolet 70 Series 1970, Service Manual

Page: 791 / 841

CH
EV
RO
LE
T
SER
IES
70-
90
HE
AV
Y
DU
TY
TR
UC
K
SH
OP
M
A
N
U
A
L
ENGINE A LAR M R P 0 . X 5 4
d e f e r e n t i a l l o c k
t e l l
-
t a l e
(A L L TANDEM A X LE MOOELS)
LOW AIR A LA R M BUZZER
LIGHT NG
MARKER LIGHTS
NOTE-LETTERS"A THRU C 'F O R
ORCU tT C O N T M JT V ONLY.
- 0 WHT. 2 RED
tr
.
'A 8 C'
------------- 18 WHT. 2 RED T R .------------
LOW AIR SW. , ; r - tfJ 6----- 18 BLK.~
— e
p in k
- 18 B L K . G R N . T R .
-1 8 B LK . GRN. TR .-—-j
IW AIR SW. —
i i----- eptNK -
- <8BLK. CRN. TR.
- t80K.8L.UE
l_----- /epm -
LO. WATER T.T.
LOW OIL SW. ------------- # 8 L K . ----------------------{ T )— f c OK. B L U E -'
^ \
--------------------------6BLK-----------------------------
ENG»C ALARM
BUZZER (R P O .)
’ ENG.SW. f - O -------- - 1 6 B L K . -----------------------( j o ) - - * * * ------------ *
\ 9
- 1 8 WHT. 2 RED TR. •
- IB GRN. WHT. CR. TR. - D fF LOCK SW.
OFF. LOCK T.T.
- I B WHT. 2 RED TR.
~©- - & CRN. WHT. CR. TR. ■
O f f . LOCK T.T.
- /9 WHT. 2 RED TP. ■
— 18 WHT. 2 RED TR. ■
- -18 BLK. GRN. TR. ------
r — INSTR.LR TAKEOFF CONNECTOR
V ------------ - 2 0 G R A Y - f v \ ) AMMETER (R .P a )
I /--------- f8 GRAY — OI L GAUGE
§ - 1 8 GtNTY — VOLTMETER
* - /8 GRAY —
j ; TACHOMETER
? GRAY -----
- I S GRAY ------ AJR GAUGE
LO. AIR T.T. LOW AIR SW f - o J V 4 ? a / f . GRN. TR.
18 GRAY -------
8 GRAY----- @4
18 GRAY ------------@ 4
INSTRUMENT LCTS-
18 B L K . GRN. TR.
Lf? ----------C D - - f ^ > PKG.LP
U PU R PLE — |
— OFF LOCK SW.
P i
l o w a ir a l a r m
BUZZER
U P P E R a L O W E R
B E A M UNT
SPEEDOMETER
FUEL GAUGE
MKR.LPS.
( PART OF FRT. DIR. LP ASM.)
- 1 8 GRAY ------------- ( S V f TEMP GAUGE
3 4
.
I— 16 GRAY -
R.P0.C9I
p
18 O R A N G E -f$ }-/e WHT.-
LP 4-Q -ci-* /6/wtf
- Q } ----- 16 BLK. --------- f f V > P K 6 . L *
CAB LT.
16 BRN. BLK.CR. TR.
WHT . —' / 5 W HT-
r~
I
5 p / 0 GRN. WHT. CR. T R . - ^ —^' Hi.BE AM T.T.
^ / - I 4 GRN. WHT. CR. TR.
U P P E R 8 L O W E R
B E A M UNIT
/ 4 B L K . -----► HDLP BODY
r o - - I 8 B L K - <■
\<V
c?; . R-rt
■ 'r-/8WHT-<-X-pr-^-j_ J
ir_y
I 8 B L K -
I 8 B L K -
16B L K - -c -
------
16B L K -
C A N A O lA N
MIRROR LPS
K r ~ ~ ~ - - ~i R.P.O. 0 4 6
^
\lr-iffWHr--c:yZ\—
r- N ^ |
- - * C 3 - . / 8 B L K - - - c r x ' J "
IB R E D -
i L.H.
F ig u r e 3 8 — C a b ,
Engine and Chassis
W i r i n g — H N , J N - 9 0
S h e e t 3 o f 5
C
H
A
SS
IS
EL
EC
T
R
IC
A
L
AN
D
IN
ST
R
U
M
EN
T
S
1
2
-4
5