1977 Citroen CX clutch

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 320-O : Checking md czdjssting fhe ronw’rtcv artd its corrtrols Op. MA. 320.0 1 I. CHECKING AND ADJUSTING THE CONTACT GAP IN THE SWITCH CONTROLLING THE ELECTRO-VALVE
The stopscrew for 3rd gear can be adjusted SK the vehicle.
Carry this out as follows : Slacken locknut ( 1 ) and stopscrew (2 ). Engage 3rd gear. Bring stop-screw i 2 1 into
contact with the selector shaft. and tighten l/2 a turn, which affords a clearance of a.4 to Cl.7 mm.
Tighten lockfiut ( 1) and disengage gear.
NOTE : Adjusting the stop-screw for 2nd gear
con only be carried out with the gearbox removed
from the vehicle. To adjust it, proceed in exactly I
the same manner as for 3rd gear. Checking and adjusting the contacts :
1.
Remove cover ( 3) from the switch unit controliinq
the electro-valve. 2. Check adjustment of contact gaps :
Proceed in the same way far each of the 4 contacts.
a) Engage a gear.
WARNING In order to obtain correct opening
of a contact, the corresponding gear must be
fully engaged. otherwise the adjustment would
not be correct.
b) Check the contact gap corresponding to the
gear engaged, using a set of feeler gauges : Contact gap :
2nd
and 3rd gears 0.8 to 1.1 mm
1st and Reverse 1.3 ? 0.2 mm
c 1 Adjust the contact by slackening screw ( 5)
on the fixed contact (4 mm Allen key ) and
move this contact along its slot.
Tighten screw ( 5) from 0.35 to 0.4 doNm
( 2 l/2 to 3 ft.Ib ).
IMPORTANT : This adjustment must be carried
out with precision, otherwise, the clutch might
disengage at times without the gear lever
having been touched.
d 1 Fit cover and tighten screw ( 4 1.

Downloaded from www.Manualslib.com manuals search engine 12 OPERATION NP MA. 330.00 : (haro? gvmhr,, III. DRAINING AND REFILLING THE GEARBOX AND THE CONVERTER
1. Place the vehicle over a pit 01 on a ramp
2. Draining :
Remove the following
spare wheel
drain plugs ( I), ( 2 I and i 3 ),
plug ( 5) from the filler orifice
NOTE The suction filter ( 4) for the converter
pump must be replaced at the 1000 km ( 60C miles j
service.
3. Filling :
Refit drain plugs ( 1). (2 1 and ( 3 1.
Tightening torque : 3.5 to 4.5 daNm ( 25 l/2 to
32 l/2 ft.lb )
VERY IMPORTANT :
USE EXCLUSIVELY
(< TOTAL FLUIDE T o
THEUSEOFANYOTHERLUBRICANTWOULD
DESTROY THE CLUTCH, AND CONSEQUENTLY
THE CONVERTER
Fill up the gearbox
( Co$acity 2-3 litres ( 3 l/2 to 5 l/4 pints )
according to draining time)
Check the level with the dipstick
4. Top up the gearbox :
> nc I<, b<’ r<,r/niii 10 <,hini,,
I/><, o) Immobilise the front wheels and put the hond-
broke on.
b) Run the engine at idlinq speed, and engage 01
gear ( 3rd gear, for example )
Slightly move the gear lever to actuate the
electro .valve controlling the clutch, ( it is
actuated when a click is heard ). ( Repeat a
dozen times ).
c) Check the level with the dipstick with the
enqine running and gear lever in the P position.
d) Fit the filler plug.
5. Fit spore wheel

Downloaded from www.Manualslib.com manuals search engine TABLE OF FUSES
Supply to Fuse
Colour Rating Circuit protected
‘Air blower
Fast idle electro-magnet
Air-conditioning relay Mauve 16 Amps Fast idle relay
Compressor clutch
Relay for L.H. air-conditioning blower
Positive terminal of
battery (( t )) Red
Green Clock
Hazard warning
Stoplamps
Idling speed cut-off
Voltage regulator
16 Amps
I’ Horn
Anti-
Relay for compressor horn
theft Windscreen wiper and washers
device Instrument panel (lighting rheostat
battery meter. warning lamps for oil
pressure and temp., brake pad wear,
coolant, oil gauge lighting)
Direction indicators
Relay for front window-winder
Heater unit relay
E Relay for rear window-winder
Cigar-lighter on centre console
Exterior mirror
Anti- Water temperature gauge
theft Reversing lamps
16 Amps device Heated rear window
Handbrake warning lamp on instru-
ment panel
Glove-box lighting
Centre and rear interior lamps
Bonnet lighting
Boot lamp
Accessory terminal (radio 1
Front window-winder relay
Lighting switch White
Yellow 16 Amps L.H. & R.H. switches L.H. 6 RH. window-winder
Map-reading lamp ( + 5Amp. in-line fuse )
Lighting for heater controls
10 Amps Lighting for ashtray and cigar lighter
Lighting for water temp. gauge and intrument panel
Sidelamp warning lamp
L.H. and R.H. sidelamps. front and rear
Number plate lamp
Fog-lamp switch White 10 Amps Fog-lamp warning lamp
L.H. and R.H. fog-lamps
(( + 1) Battery terminal
Relay for rear window-
winder Yellow
White 16 Amps L.H. and R.H. rear cigar-lighters
16 Amps Switches -L.H. and R.H. window-winders, rear
-.. -- . ..-...- . . . -..---m-
IDENTIFICATION
OF WIRING HARNt33t3
AV Front ( no identification of circuit diagram) PD Rear R.H. door
C Boot PG
Rear L.H. door
co Compressor PR
Rear doors
M Engine Rear PC
Boot lid TRS Instrument panel Cl RCUI T DIAGRAM
L3
P.T.O.

Downloaded from www.Manualslib.com manuals search engine OPERATION No MA. 510-00 b : i
.,.~//,q~~r~/~/// o/ //IV ~,lc,ctrit 01 iti.sfnl/nlio,l Op. MA. 510-00 b 7
I /IONI 9
1075 )
dent,
lark
1
2
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60 DESCRIPTION OF COMPONENTS
Description and Location
‘rant R.H. sidelamp 93 .........................
‘rant R.H. direction indicator .............
33
3 .H. headlamp main beam ............... 102
dipped .beam ............... 101
3.H. blower motor .......... ........ ...... 56
iorn ....... ...... ....
........................... 10
,,H, blower motor ...........................
54
,.H. headlamp main beam .................. 100
dipped beam ........... 99
‘rant L.H. sidelamp ........................
92
Front L.H. direction indicator ................ 30
[gnition coil and anti-interference condenser 58
‘I.T. sensor socket .............................
63
jensor for No. 4 cylinder ................
63
5tarter motor .......................... 3
41ternator and anti-interference condenser 6
Distributor ...... ......................
60
Thermal switch for ventilation ............ 57
Horn compressor ................................ 8
Relay for rear door window winder ....... 71
L H. air conditioning blower relay ............
49
Relay for fast-idle ........................... 52
Air-conditioning pressure switch ............ 51
Battery ...............................
1
Voltage regulator ..................... 6
Diagnostic socket ...................... 64
T.D.C. sensor .......................... 63
Reversing lamp switch ......................
78
Air-conditioning compressor clutch.. ........
51
Relay for compressed air horn ............... 8
Windscreen washer pump ......... ........ 15
Fast idle electro valve ......................
49
Engine oil pressure switch ............... 26
Idle cut-off ...................................
6
Oil temperature switch .: ....................
28
Coolant temperature switch ............
22
Coolant temperature sensor ...............
76
Relay for L.H. blower ....................... 55
Relay for front window-winders ............
44
Relay for heating and air-conditioning
.... ..4 7
Relay for F.H. tlower ........................
57
Front R H. brake unit .........................
21
Front R.H. door lighting switch ............ 81
Windscreen wiper motor ...........................
13
Under-bonnet lighting. ..................... ..... 84
Air blower motor ...................................... 47
Hydraulic fluid pressure switch ............ 24
Stoplamp switch ..................................
37
Fuse box ( 2 fuses ) ......................
69-71
Fuse box (6 fuses ) ..... 12-44-47-75-94-98
Front L.H. brake unit ............................
18
Front L.H. door ‘lighting switch .............
80
Glove-box lighting ................................. 79
Map-reading lamp and fuse .....................
92
Handbrake warning flasher unit ..............
90
Air-conditioning thermal switch .......... 51
Lighting for pneumatic oil gauge ............
27
L.H. outside mirror switch ................
75
&.H. outside mirror ................................. 75
R.H. front door window-winder motor ...... 43
Front R.H.loudspeaker ....................... 88
Interior lamp centre .............................. 81
Cigar,lighter on console and lighting .... 73-94
Lighting for ashtray .............................. 95 dent.
lark
2
63
b:
66
67
68
69
3:
5;
5:
76
77
78
79
80
to9
8:
93
94
95
99s Description and Location
Anti-theft switch
.._.. _..,..... _. 3-12-58-75
L H front door window-winder motor i;
Front L.H. loudspeaker
Front R.H. window-winder switch ....... .... 43
Front heater control lighting ..............
93
Front L.H. window-winder switch
........ 39
Coolant temp. gauge + lighting
........ 76-95
Direction indicator flasher unit ......... 34
Rear R.H. door lighting switch
................ 83
Rear R.H. cigar-lighter ’ ...................
69
Rear R H. window-winder switch
........ 70
Air blower switch ...............................
48
Centre interior lamp switch
.................. 81
Heater rear window switch
...................... 89
Lighting for rear heater controls
....... 94
Air conditioning switch
................
51
Handbrake warning switch
....................
91
Light.ing t rear foglamp switch
.... 94 to 100
Speed0 t tacho lighting rheostat
....... 20
Instrument panel
Lighting .............. 93-94
Tachometer
........................................ 58
Battery meter ( thermal voltmeter )
.....
18
Fuel gauge .., ................... ...................... 16
Lighting for speed0 + tacho
............. 19-20
Clock and lighting ........... ...............
92-29
Warning lamp for heated rear window
...... 90
Warning lamp for dipped beam
............. 99
Warning lamp for bt-ake pad wear
.......... 19
Warning lamp for engine oil temp. .......... 28
Warning lamp for coolant temp
..........
22
Warning lamp for eng. oil pressure ......... 26
Emergency (( STOP )) warning lamps
... ...23-2 5
Test button for (( STOP )) warning lamps
21-23-25
Warning lamp for hydraulic fluid press ..7.4
Warning lamp for hazard warning 30
Warnina lamu for converter oil temo.
Warnin; lamb for sidelamps
..... : ..........
95
Warning lamp for direction indicators
.... 36
Warning lamp for main beam
................. 101
Warning lamp for handbrake
....................
91
Warning lamp for rear fog lamps ........... 97
L.H. control unit
Direction indicators and haz.warning 30 to35
Horns ... ........................................
9 and 10
Windscreen wipers and washers
.... 12 to 15
L.H. rear door lighting switch
................
82
Rear L.H. cigar-lighter
............................ 65
Rear L.H. window-winder switch
............ 65
Rear R.H. window-winder motor
......... 69 Rear Re H loudspeaker
............................ 88
Fuel gauge rheostat ....................... .....
16
Rear R.H. interior lamp
......................
83
Rear R.H lamp cluster
Stoplamp and sidelamp
................ ... 37-97
Direction indicator .............................. 32
Reversing lamp ...................................
78
Foglamp .................................................
98
Heated rear window
.................................. 89
R.H. number plate lamp
97 ..........................
Boot lamp
.......................................
85
L.H. number plate lamp.. ..........................
95
Boot lamp switch
.............................. 85
Rear L.H. lamp cluster Stoplamp and sidelamp
....................... X6-95
Direction indicator ......................... ........
31
Reversing lamp
.......................
................
Fog lamp
.................................................. ii
Rear L.H. interior lamp ............................
Rear L.H. window-winder’motor
............. 68;
Rear L.H. loudspeaker ............................ 87

Downloaded from www.Manualslib.com manuals search engine TORQUE CONVERTER ( I ‘/+(I -I
1 51-Rh
CIRCUIT DIAGRAM FOR CX CONVERTER
kd i- I I I c
I I Bc Bc
*
KEY
- Existinq leads G
- Converter
6
8
;a
Parallel connecto- Mr
0 Connector with
No. of ways i
Starter
01 ---
I Bc k l3i F;J
E Mr ,L H wheelarch
A m
I 1
EMr
to TB
Ve
P n
Ve +
1 - Battery
2 - Relay for electro-valves
3 - Ignition and starting contact
4 - Electra-valve controlling fast idle
5 - Electra-valve controlling clutch
6 - Gearbox switch housing
7 - Control relay for electric fan 8 - Thermal switch corrtrolling the electric fans
9 - Electric fan
10 - Relay controlling supplementary electric fan
11 - Supplementary electric fan
12 - Warning lamp for converter oil temperature
13 - Converter oil thermal switch

Downloaded from www.Manualslib.com manuals search engine DESCRIPTION OF COMPONENTS
1.
Battery
2. Starter
3. Anti-theft switch ignition and starting
4. Safety relay for starting and controlling the clutch electro-valve f ~/lr,c,r/(,r J
5. Clutch electro-valve ( co,/, V~IO~ J
6. Control relay for idling speeds f W//I r,~/or J
relay energized engine idling speed
- relay not energized 1 fast idling speed
7. Switch housing on gearbox ( WJ,, c,~/(,v J
8. Fast idle control relay / ~i)-c o~r/i/ir~//i,l~ 1
relay energized contact open fast idle
9. (( PIERBURG )) electro-valve for fast idle
- energized engine idle
not energized fast idle
10. I6 Amp. fuse 11.
General control relay 12.
16 Amp fuse 13.
Air blower ( tr’n~r// or c-old ) 14.
3-speed blower control
15. Regulating thermostat ( ~i,.=ror,c/i/irrr,i,l~: i
16. Air-conditioning switch 17.
Pressure switch on de-watering tank f ni,-=( or~rli/irrr/i~~~c ) 18.
Compressor clutch f nifsc o//di/io~i/l~ i 19.
Control relay for L.H supplementary electric fan (21 ) ( ~il..r~l/di/io//il/~ )
20. Control relay for electric fan (21 ) (
coolir~g o/ rficJiNlor (I nlc,r )
21. Supplementary electric fan for condenser ( ~il.~rol/ni/i~~ll/i//~ ) and water radiator ( cooling: J
22. Control relay for R.H electric fan ( 24) ( tooli~!: J
23. Thermal switch on water radiator ( (r)olir~,r~ to~trol )
24. R.H. electric fan for gearbox oil radiator and coolant radiator
25. Converter oil temperature warning lamp ( CM, c~sl~r J
26. Thermal switch for converter oil ( COMWKI~B ) KEY TO WI RING HARNESSES
No Mark
: Standard circuit (no optional equipment ) TB :
Instrument panel
Circuit for optional (( Converter - air-conditioning )) - No mark
; Converter wiring on body-shell
- CM : Converter wiring on engine

Downloaded from www.Manualslib.com manuals search engine WIRING DIAGRAM FOR ELECTRIC FAN AND AIR-CONDITIONING CONTROL
-- I’)‘(,
L64 4
41 1 1 Front harness
-
T
17
I KEY I
I I
I
Standard wiiinq I
I I
I I
I - Air-cond wiIinq, ‘- - - - - - - _-
1 i 1 1 1
/,/r/////,/,,,,/,//////~////~‘/‘~””’~”””””~””7”“““’
Earth on gearbox
Eart>, on front L H wheelarch 1.
Control relay for supplementary electric cooling fan
2. Control relay for air blower
3. Ambient temperature thermostat ( on evaporator )
4. Air-conditioning switch (on centre console )
5. High pressure switch ( on de-watering tank )
6. Electra-magnetic clutch for compressor
7. Control electro-valve for fast idle and re-cycling ram
( WEBER electro-valve )
8. Control relay for supplementary air-conditioning electric
9. Control relay for electric cooling fan 10.
Ignition coil 11.
Idle cut-off ( on carburettor ) .12.
Electric cooling fan
13. Thermal switch for electric cut-in ( on radiator )
14. Supplementary air-conditioning electric fan
15. Air blower for air- conditioning 16.
Control resistors for air-blower speeds 17.
Air blower switch ( 3-position )

Downloaded from www.Manualslib.com manuals search engine Op. MA. 510-00 b 17 WIRING DIAGRAMS’FOR COOLING FAN AND AIR-CONDITIONING SYSTEM CONTROL
SPECIAL FEATURES
From 1977 models the fast-idle electro-valve ( 9) is manufactured by 1, PIERBURG 1).
When it is not enerqized the electro-valve lets low pressure through towards the carburettor capsule (fast
idle ) contrary to the (1 WEBER )) electromvalve fitted previously.
Fitting the N PIERBURG )) electro-valve necessitates fitting a relay (8) which is enerqized when the air-
conditioning system is operating This relay, with its c( o/)t/i 1) contact cuts off supply to electro-valve (9)
which therefore produces fast idle. DESCRIPTION OF COMPONENTS :
1
- Heater relay ( .s/o~/~/Q~c/ )
2 - Air blower ( .S~n~~dnr(i i
3 - Speed control for blower ( S/nr/clnrt/ J
4 - Regulating thermostat
5 - Air-conditioning switch 6
- Pressure switch ( 01, dc,-rt,cr/t,rit,,q lnr~k ) 7
- Compressor clutch
8 - Control relay for fast idle melectro-valve
9 - Fast idle electro-valve lo-
Relay for L.H. supplementary electric fan f nip-cor/rli/ior/illS ) 1
I- Supplementary L.H. electric fan ( foolir2~~ ) 12-
Relay for L.H. supplementary electric fan ( cooli~/g ) ?3-
Control thermostat ( on radiator ) for electric fans ( Stnr~d& )
14- Relay for R.H. electric fan ( Stmzdnrrl )
15 Electric cooling fan ( Stal?dn~/ )