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OPERATION
No MA. 640-00 :
(:hnrnc-/eris/ics
nrtd
s.pcc-in/
~bntttrcs
of
I/T<< nir-
Op. ihA. 640-00
5
c-ottdiliottittg
systc~ttt
VI. ClRdUlT
DIAGRAM
FOR dONiROL
OF ELECTRIC
COOLING
FANS AND AIR-CONDITIONING
SYSTEM
(-'/lo76
)
I
I
L 64-4
I 1. I
+I
-
Air-conditioning
harness
r -I%
ii.+
f:N
r Mv
A
-1
Front
b
3
1
Engine
harness
VC
-
I-
__------
I
KEY
I
I
I
I-
Standard wiring
1
17
/TTj
I
I
I
-Air-conditioning
1
L2Ginq--~_J
Earth (front L.H. wheeiarch
)
Earth
on gearbox)
1
- Control
relay for supplementary
electric
cooling
fan
2 - Control
relay for air blower
3 - Ambient
thermostat
( located
on evaporator
)
4 - Air-conditioning
switch
( on centre
console
)
5 - High
pressure
switch
( on de-watering
tank )
6 - Electra-magnetic
clutch
for compressor
7
.
Electra-valve
controlling
fast idling
speed,
arid pneumatic
recycling
piston
( WEBER
electro-valve
)
8 - Control
relay for supplementary
electric
fan for air-conditioning
9 - Control
relay
for electric
cooling
fan
lo.-
Ignition
coil
11
- Idling
cut-out
( on carburettor
)
12
- Electric
cooling
fan
13
- Thermal
switch
for electric
fan cut-in
( on radiator
)
14
- Supplementary
electric
cooling
fan
15
- Air blower
for air-conditioning
16
- Control
resistors
for air blower
speeds
17
- Control
for air blower
( three-speed
)
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