Downloaded from www.Manualslib.com manuals search engine a OPERATION N’ MA. 410-O : (./~rrkiq N,,I/
VI. CHECKING AND ADJUSTING THE STEERING GEOMETRY
The crossmember supporting the steering has slots at its fixing point on the front subframe.
Any vertical movement of this crossmember alters the steering geometry.
WARNING
This operation is only to
be carried out in certain ccxses such as
-accidental impact, with repercussions on the steering system.
-work on the vehicle entoiling removal of steering crossmember.
- vehicle with poor
road stability ( p oar stright-line stability) 01 with excessive tyre weor.
CHECKING
1, Prepare the vehicle. as for checking front wheel
alignment ( Srr ~ho/,lvr
V I.
NOTE
A ) \In,,unl ~fi~<,r;,,~ I chiclvs :
With the steering in the /< straightahead 1)
position. lock the steering using CI commercially
available tool ( FACOM _ MULLER -WILMONDA)
B) PO,, P)’ \,r,rr;ng r’cliirl<,.s :
Do not actuate steering wheel during check
( hydraulic locking of rock 1.
As a precaution. a steering wheel iocking
tool may also be
used. 2. Mark position of vehicle in relation to
ground :
Secure a weighted length of string to the front
bumper. and
mark the position of the weiqht on
the ground ( The
object of this is to always bring
the vehicle
bock to the some position in order to
carry out correct measurements 1.
NOTE Other procedure
This check having to be carried out wheel hy wheel.
it is possible to use the free projector.
Secure projector to scuttle panel crossmemher, and
focus it onto a fixed object, which will indicate the
initial positioning of the vehicle.
3. Measure the variation in the wheel alignment wheel
by wheel, ds o function of the height of the vehicle.
a) From Ihc m~nwnl rlri,:ir,g posi/ior, lo /hc hi@
posilio,, f ftouad 1 :
With vehicle in mwmal rlriving position.
engine running ond position marked in relation
to groond :
Mark position of luminous spot on front graduated
rule.
Place m’anual height control lever in hi&
posilirrrl.
and wait for vehicle to stabilize.
Check and adjust if necessary position of vehicle
in relation to ground. ( II
eight 01 Inmbrous spol
ou /i wd 0 hit,< I J.
Mark position of luminous spot on front graduated
rule. and on rear one
1) Front and rear readings ore the some (no
variation in alignment in the wheel 1.
NOTE : The reading f I,i$ or lorr posilios J
on the qroduated rules differs from the initial
reading f non,,nl >r,nrlinl:
position J because
the front track has altered.
2) Front and rear readings ore different ( in this
case the alignment has oltered,.either in
toe-in or toe-out ).
0 to 1 mm toe-in is permissible on either wheel
b) ,:rr ,,I, /bv IIDIINRI hi&g ,,osi,;orr lo ,I,<, lo,,
posiliov f Hrlmuad ) :
Proceed OS for previous measurements, place
manual height control lever in low position. In
this case. the permissible difference in oliqn-
ment
is O.to 1 mm toe-out.
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 BRAKE VALVE
B. 45-8 a
Overflow return Rear brakes Front brakes
1. Snap ring
2. Spring
3. 1’ 0” ring
4. Plug
5. Thrust washer
6. Rear slide-valve
7: Front slide-valve
8. Spring
9: Thrust cup
10. Circlip
11. Rubber protective sleeve
12. Securing bush
13. Snap rings
14. Rubber damper
NOTE If the brake valve is not fitted with an external overflow return, it is incorporated in the operational
return ( Return to reservoir ).
WARNING Three types of brake valve fitted with a single return system incorporated in the operational return
have been used.
= is/
/it/i//g brake valve painted green with overflow pointing upwards
= _)IIII
fi/tirlg : brake valve with green paint mark, and overflow pointing downwards
_ i1.d
/it/i,l~q’: brake valve with green paint mark on L H side and overflow pointing downwards
I. CHARACTERlSTlCS
Main braking system :
- Disc brakes on all four wheels with r~u/iln/ct/ tlisrs at the front ( Sn/oo//~ I
front and rear ( I:sIN/~ s i
- Four pistons per brake unit. at the front
- Two pistons per brake unit, at the rear
- Power operated hydraulic control ( brake valve incorporated in system )
z The front braking system is supplied by the main accumulator ( c,~l~icI~~.s
rli/ll vrn~l//~/ SIC criug J or by the
the brake accumulator ( I’orr,< J’
s/ccrivg rc,/~iclc,s 1.
- The rear braking system is supplied by the rear suspension. and is fitted with a brake pressure limiter cn
I:SIUI(J vehicles
-
The inner half-unit at the front is in one piece with the swivel.
- The outer half-unit at the front is removable.
Handbroke ( Emergency brake ) :
w
Independent from the main braking system.
- Two independent brake pads acting on front discs.
- Ratio
- cx 2000 - 2 197 j ___._....._..._..._.........,............................................................................... 101 1
- All CX vehicles 2 1’j75 -
. . . . . . 123 1
Total braking area :
- Main braking system : 316 dm2 - 48.98 sq.in ( Snloor~s ) or 365 cm2 - 56.57 sq.in f f:sfrffcss )
v
Handbrake ( emergency brake ) 49 cm2 ( 7.59 sq.in )
