Dacia Pick-Up 1304/1305/1307. Manual - part 79

33

REAR BEARING ELEMENTS

33 - 7

BRAKE CYLINDER

REPAIRING

Dismount the cylinder off the vehicle.
Dismount: the  protection bellows assembled with pistons, the pressure gaskets, and

the purging screw.

Check the state of cylinder boring, pressure gaskets of the bellows and of the  pistons.
Any trace of wear, oxidation or scratches implies the replacement of  brake cylinder

assembly.

 If the cylinder components are in a good state, lubricate the parts with brake fluid and

mount them in the reverse order of dismounting.

Check the easy moving of the pistons in the cylinder.
Mount the brake cylinder on the vehicle.
Check the adjustment of  the hand brake.
Perform the purging of the brake system.

REAR BEARING ELEMENTS

33

33 - 8

BRAKE SHOES

T

IGH TENING

 

MO MENTS

- Wheels nuts ...................................................................................................9 daN.m
-  Attachment screws of the assembly  “ drum – axle brake plate  “...............6,3 daN.m
-  Slotted nut ...................................................................................................24 daN.m
-  Connecting screw propeller shaft – hub drum  .......................................1,54  daN.m

D

ISMO UNTING

The replacement of brake shoes must be performed in complete set, never mount the

brake shoes equipped with linings of different brands and qualities.

Dismount :

- the connection of the brake secondary cable with the hand brake lever;
- the brake drum ( see the corresponding paragraph) separating it from the brake

plate;

The brake plate being placed on a bench, dismount ;

-

 the shoes maintaining clips on the brake plate;

-

 the upper return spring by means of a nipper for brake shoes;

-

 the assembled connecting rod with the hand brake lever;

-

 the assembled shoes with the lower return spring;

-

 the lower return spring.

The brake components with adjustment

by eccentrics:

A - 

tightening shoe

B - 

compression shoe

C -

 supporting plate ( fixe point )

P -

 shoe’s foot

1

. Upper return spring

2

. Lower return spring

3

. Clip for maintaining shoes

1

  3

 

 B

  2

 

C

 P

A

  3

33

REAR BEARING ELEMENTS

33 - 9

BRAKE SHOES

R

EMO UNTING

The shoes assembled with the lower return spring is attached on the plate ( the shoes P

foots in contact with supporting plate C).

Remount the auxiliary connecting rod assembled with the hand brake lever.
By means of a brake shoes nipper, set the upper connection of shoes by means of the

upper return spring.

 Mount the brake shoes maintaining clips.
Apply a sealant layer ( ROMTIX 1502 ) in the areas of the maintain clips with the

brake plate.

Assembly the brake plate with the drum – hub assembly.
Tighten at the required moment the attachment screw of the assembly “drum - rear axle

brake plate”.

Drum clearance adjustment

:

- rotate downward the eccentric until the drum is locked than rotate it upward with

1/12 rotations ( aprox. 30’).

- after performing drum adjustment, it must be easy rotating by hand.
- begin with the compression shoe.

REAR BEARING ELEMENTS

33

33 - 10

S

PECIAL

 

TOO LS

        Depressing device for bearing casing assembly

 

PS 702

T

IGH TENING

 

MO MENTS

- Wheels nuts ...........................................................................................9 daN.m
- Slotted nut ............................................................................................24 daN.m
- Attachment screws of the assembly “drum axle brake plate” .............6,3 daN.m
- Connecting screw propeller shaft – hub drum ..................................1,54  daN.m

CHECKING

Check by means of a comparator device attached on the drum, the axial clearance:

 0 - 0,15 mm max.

D

ISMO UNTING

Dismount :

- the connection of the secondary cable with the hand brake lever;
- the assembly hub drum-brake plate.

Take out from the assembled bearing casing :

- the safety ring by means of adequate nippers;
- the bearing by means of a tube.

R

EMO UNTING

Clean the inside of the bearing casing.
Mount the bearing by means of a tube and a press;
 Set in its place:

- the safety ring for boring by means of special nippers.

Press the bearing casing on the hub – drum assembly, tighten at the required moment

the slotted nut.

Set  the assembly hub drum –rear brake and mount it on the axle.
Fix the secondary hand brake cable.
Adjust:

- the drum clearance ( see the corresponding chapter );
- the hand brake.

BEARING ( 39X68X37 )