DACIA SOLENZA 2004 Repair Manual

33
REAR A XLES ELEMENTS
33 - 7
Brake drum
The two brake drums having the same diameter; the rectifyi ng of one of them, obligatory
implies t he same operation for the other one.
SPECIAL TOOLS
Plug extracting pliers RO441
Dr um extractor PF600
TIGHTENING MOMENTS (daNm)
Wheel attachment screw 7.5
Steering knuckle nut 22
DISMOUNTIN G
Dismount the wheel.
Extract the plug out of the drum using the ex-
tracting pliers RO441.
Release the hand bra ke, l oosening the sec-
ondary cables. Pass a screwdriver through the wheel attach-
ment whole of the drum and operate on the
geared lever sector loosening its gearing with the
hand brake lever. Dismo unt :
- the steering knuckle nut and washer;
- the drum by means of the PF600 ex-
tractor.
R EMOU NT I NG
Clean t he drum and t he brake plate a ssembly by means of a c leaner (vacuum c leaner) for
brake;
Mount :-the drum
- the steering knuckle washer and nut tightening them to the required moment;
- the drum plug
Adjust:
-the shoes by applying a repeated pressure to the brake pedal;
-hand brake ( see chapter 37-“Controls”)
Mount the wheel and tighten the screws t o the required moment.
33 - 7
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33
REAR A XLES ELEMENTS
33 - 8
Brake cylinder
TIGHTENING MOMENTS (daNm)
Wheel attachment screw 7.5
R ear wheel steering knuckle nut 22
Purging screw 1
Brake rigid piping connection screw 1.5
C ylinder attachment screw on plate. 1
Dismounting pliers for shoes return spring FR 03
Plug extractor pliers RO 441
SPECIAL TOOLS
A
DISMOUNTIN G
Loosen the rear wheel attachment screws.
With the vehicle placed on an e levator with
two columns, dismount:
- the wheel;
- the drum plug;
- brake drum;
- upper spring for shoes return, using pli-
ers FR03.
S pace t he brake shoes.
Unscrew: - the rigid piping connection on the brake
cylinder by means of an open-end wrench; -the two attachment screws of the brake
cylinder on the brake plate;
-remove the brake cylinder. Check the condition of the shoes brake
lini ng.
R EMOU NT I NG
Clean t he drums and the brake shoes as-
s embly by means of a cleaner (va cuum
cleaner) for brake.
Perform in reverse order the dismounting
operations:
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33
REAR A XLES ELEMENTS
33 - 9
Brake cylinder
Adjust:-the shoes, by applying a repeated pressure to the brake pedal;
- the rear axle bearing clearanc;
- the handbrake ( see c hapter 37).
Mount the wheel.
Lower the vehicle on the ground.
Tighten the wheels screws to the required moment.
Pu rge the braking system (see chapter 38).
REPAIRING
DISMOUNTIN G
Dismount the brake cylinder off the vehicle;
Dismo unt :
- the purging screw;
- the protection bellows;
-the Ö22 pistons assembled with the pressure gaskets.
Check the condition of the cylinder boring, any trace of wear, oxidation or scratches implies
the replacement of the assembled brake cylinder.
If the cylinder components are in a good condition, lubricate them with brake fluid and mount
them in the reverse order of dismounting .
Check the easy moving of the assembled pistons in the cylinder boring.
Mount the brake cylinder on the plate;
Mount the wheel brake drum.
Check the adjustment of the hand brake.
Purge the braking system.
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33
REAR A XLES ELEMENTS
33 - 10
Brake shoes
SPECIAL TOOLS
Plug extracting pliers RO441
Di smounting pliers for shoes return spring FR03
Pliers for maintaining brake cylinders pistons FR05A
TIGHTENING MOMENTS (daNm)
Wheel s crews 7.5
Rear wheel s teering knuckl e nut 1 6
CR
R TR
DISMOUNTIN
G
The replacement of brake shoes must be
performed in complete set, never mount the
brake shoes equipped with brake linings of
different brands and qualities.
Dismou nt :
- the brake drum ( see the correspond-
ing paragraph); - the t wo maintenance springs ( R) of
the shoes with a brake cylinder rod ( T). By means of the pliers
FR05A the brake cyl-
inder pistons are immobilized.
Remove the return upper spring of the shoes
using the pliers FR03.
Release the end of the hand brake cable from
the hand brake lever.
Swing the adjustmen t lever (C) u p t o the mo-
ment it comes into contact with the rear wheel
steering knuckle. Distance the shoes from the plate.
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33
REAR A XLES ELEMENTS
33 - 11
Brake shoes
C
B
H
Dismount
the auxiliary connecting rod ( B)
connection from the adjustment lever (C).
Bring the adjustment lever in the initial
position. Rotate the compre ssion shoe with 90
degrees. Dismount the lower spring.
Remove the (front) compression shoe, then
the tensioning one.
R EMOU NT I NG
Perform in reverse order the dismount-
ing operations.
REMARK:
The adjustment of the device for the
automatic clearance taking over, is de-
pendi ng of the spring tensi oning (E),
that i s caught between the rear shoe and
the auxiliary connecting rod.
Measure the value H=1mm, between the
auxiliary connecting rod and the front shoe. If
the value H is not correct, replace t he auxil-
iary connecting rod spring ( E) and the shoes
return springs.
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33
REAR A XLES ELEMENTS
33 - 12
Brake shoes
Checking of t he brake shoes wear may be pe rformed also without dismounting t he brake
drums.
In this purpose:-lift the vehicle by means of a two-column elevator;
- dismount the rubber protector of the visiting window from the brake plate;
- check by visual inspection the condition of the brake shoes wear.
If a serious wear is established, perform the brake shoes replacement (see the corresponding
paragraph).
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33
REAR A XLES ELEMENTS
33 - 13
Bearing
SPECIAL TOOLS
Plug extracting pliers RO 441
Drum extractor PF 600
TIGHTENING MOMENTS (da Nm)
Rear wheel steering knuckle nut 22
Wheel attachment screws 7.5
ΦΦ ΦΦ

38
ΦΦ ΦΦ

65
CHECKING
Check by means of a comparing device attached on the drum, the a xial clearance: 0 – 0.15
mm max after mounting and tightening to the moment of 22 daNm.
DISMOUNTIN G
Dismount :
- the drum plug by means of the extracting pliers RO441;
- rear wheel steering knuckle nut;
- the drum.
Dismount from the drum:
- the boring lock;
- the be aring by means of a t ube Ö38mm.
If necessary, use the extractor CV 28 A, in order to extract the bearing inner ring, remained
on the steering knuckle.
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33
REAR A XLES ELEMENTS
33 - 14
Bearing
REMOU NT I NG
By means of a tube with the outer diameter Ö51mm and a press, mount the bearing up to the
contact with the drum support surface (carefully not to damage the sealing ring and to ensure a
constant pushing force during this operation).
Remount: -a new lock;
- the drum on the steering knuckle, previously greased with grease;
-a new nut M20 x 1.5 and tighten to t he required moment;
- the drum plug.
Adjust: -the shoes by applying a repeated pressure on the brake pedal;
- hand brake (see c hapter 37-“Mechanical Elements Controls ”).
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33
REAR A XLES ELEMENTS
33 - 15
Bearing
3333
0000
ELASTIC BUSHING REPLACEMENT
Di smount by m eans of a pre ss, the worn bushing, using a sleeve with t he out er di ameter
D=39mm.
Press the new bushing.
When pressing, observe the value : A=30mm.
Remark:
For the elastic bushing mounting, use the PS701 de vice, and for dismounting t he
extractor PS700.
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35
WHEELS AND TIRES
35 - 1
Characteristics
WHEELS
The wheels identification marking is repre sented in two ways: -engraved marking for steel rims
- cast marking for aluminum rims
The marking enables acknowledgment of the main wheels dimensions criteria.
This marki ng may be:
- Complete Example : 5.5 J 14 4 CH 43 , or
- Simplified
Example: 5.5 J 14
The wheel attachment holes are situated on a diameter of 100 mm.
Maximum axial runout : to be measured in points P1 and P2.
Maximum radial runout : to be measured in points G1 and G2.
AB C D E F
Rim width Rim Rim nominal Number of Tire Offset
Rim type ( in inches) edge diameter attachment staffing ( in mm) profile (in inches) points profile
5.5 J 14 4CH 43 5.5 J 14 4 CH 43
5.5 B 13 4CH 46 5.5 B 13 4 CH 46
G1
P1P2
G2
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