1982 Citroen CX power steering

Downloaded from www.Manualslib.com manuals search engine 12. Adiust the steering clamp :
Slacken nut ( 3 ) and move the clamp on the
steering pinion. in order to obtain Jl =J2
Tighten nut (3) to 1 4 daNm ( lOft.lb 1 VII. ADJUSTING THE STRAIGHT-LINE RUNNING
( Vvhirlvs jirtd rr~ilh power stcvri1r.q )
This operation is to be
carried out on a level
rmd, in the absence of any wind. The vehicle pulls ta the right :
- Slacken
both nuts ( l), rotate eccentric ( 2 )
towards the left.
- Tighten nuts ( 1). The vehicle pu’lls to the left :
- Slacken both nuts ( 1 ), rotate eccentric i 2) towards
the right.
- Tighten nuts ( 1)
NOTE In case the movement of eccentric ( 2 1
is not sufficient, see para 3. sub-para. B) of
chapter II.

Downloaded from www.Manualslib.com manuals search engine II. POWER STEERING WITH POWERED RETURN
I. CHARACTERISTICS
Hydraulically operated rack and pinion steering Steering
ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13 5 i
- No of steering wheel turns from lock to lock
. . . . . . . .._._.__................................................ 25
- Turning circle (( between walls ))
11 80m
(.S x00 OIlCi ( s .2x0 solooll.~
(( between kerbs )) 10 90 m t
/( between walls )) 12 70 m
I( between kerbs 1) 11 80 m t I’\/N/l’ N/id I’n~\lix”
- Wheel alignment ( toe-in of wheels to the front i (i/l //I( //r~rjj/rll c/r;/ ii/:: p, cilirJ/i 1 1 to 4 mm
STEERING AND HYDRAULIC RACK CONTROL ASSEMBLY
1. Steering-wheel
2. Anti-theft device
3. Control unit
4. Steering shoft
5. Coupling flonge
6. Eccentric for odjusting stroight line running
7. Clomp for coupling hydraulic pipes
Jl J2 obtoined by moving clomp (5) olo
STEERING COLUMN, AND HYDRAULIC CONTROL UNIT

Downloaded from www.Manualslib.com manuals search engine THIS STEERING SYSTEM HAS THREE DIFFERENT FUNCTIONS
- Power operation i rc,d/ic-/ici// 0 I .~/I c,r-i/lg-o /Io.c,/ c’//or/ /
Stiffeninq of the steerinq as a function of the speed of the vehicle f s////it-ic,r/t /<,(,I o/ 11~1 c/c,c~ri/t.cq r/~llc(,I I//JNI(,I or
lhc, 1 cjhicle spc,c~d )
1. Steering pinion 5. Piston seal
2. Rack housing 6. Rack
3. Sleeve 7. Rack plunger
4. Piston
I SECTION THROUGH RACK AND HYDRAULIC RACK CONTROL UNIT ( OPERATING CYLINDER )
SECTION THROUGH HYDRAULIC RACK CONTROL UNIT ( OPERATING CYLINDER )
a) Hydraulic rack control unit ( operating cylinder )
The rack is connected to the hydraulic control unit ( operating cylinder )
Assume S as the piston in chamber 1, and S/ 2
its surface ( ns dcjsiguvd iu c-hmvhc 1’ 2 J.
The steering is balanced when forces F and Fl exerted on each face of the piston are equal
therefore F = S x F =Fl +x HP
HP 1 operatinq pressure of hydraulic circuit f mist s l‘ront /hc r-r/-iit /I,,( s.5~1’~~ lo fhc cf4I-r)ul /~r~~.~.s~ir~~ J.
Movement of the rack ( therefore, power operation ) is ensured by a change in pressure inside chamber 1, such
as
I Return of fluid to the tank -HP / 2 decreases
- Inlet of fluid -HP/ 2 increases

Downloaded from www.Manualslib.com manuals search engine d
m
.-
0
2
f Op. MA. 440-00
7 -
b) Steering governor :
It is situated on the front subframe, and mechanically driven ( cable ) by the final drive unit in the gearbox.
Ei A ”
VEHICLE STOPPED (engine running)
L.44-14b
I/ /II I Pressure
IL Towards
HP cam cylinder
VEHICLE IN MOTION
* Slide-valve A is linked in linear motion to lever B
- Fly-weights C, which rotate ( and fly towards under the effect of centrifugal force ) cause lever B to tilt.
=
L'nrioblc, position of slide-valve A, allows the pressure exerted on the cam cylinder piston to be varied.
NOTE In order to make possible the powered return function. the steerinq governor supplies a pressure
of 20 i-15 bars ( 290 +173 psi ) when the vehicle is stopped f 11
i/F /hc cwgir/e wt/t~iv.g i.
I
POWERED RETURN
The powered return is a combination of the two preceding functions, the variable feel function controlling the
power-operation function.