Dacia Pick-Up 1304/1305/1307. Instruction - page 72

FRONT BEARING ELEMENTS

31 - 12

31

BRAKE GASKETS

R

EMO UNTING

Mount the protection bellow.
Check :

- the wear of brake disk;
- the wear of flexible hoses.

Push the piston by means of the FR 500 device.
Mount:

- the protection bellows;
- the elastic blades;
- the new brake pads; pads must easily slide in the caliper fork.

Mount the calipers.
Mount the wheels and get down the vehicle on the ground.
Press the brake pedal for several times in order to bring the pistons in contact with the

brake pads.

31

FRONT BEARING ELEMENTS

31 - 13

BRAKE CALIPER

T

IGH TENING

MO MENTS

( daNm )

Wheel nuts

9

Rigid sewerage-connection screws

1,5

D

ISMO UNTING

Drain the brake fluid tank.
Lift the vehicle by means of a two columns

elevator

Dismount the wheel.
Dismount:

-safety wedges;
-the wedges (B) by lateral sliding.

Disconnect the brake wear sensor.
Unscrew the rigid sewerage-connection

from the brake flexible hose.

Remove the safety washer of the flexible

connection from the stopper and dismount the
caliper.

Check:

- the state of flexible connection;
- the state of brake disk;
- the state of brake pads;
- the state of protection bellow.

Replace the damaged or worn parts.
Fill the caliper with brake fluid.
Mount on the caliper:

- aerating screw;
- the flexible connection with a new

copper gasket.

Push the piston by means of the FR 500

device.

Unscrew the flexible connection from caliper and the purging screw.

R

EMO UNTING

FRONT BEARING ELEMENTS

31 - 14

31

Clean and grease the sliding surfaces of the caliper, wedges and pads holder.
Mount the caliper on the pad holder.
Mount the lower wedge, which must smoothly slide.
Introduce a screwdriver between upper caliper part and pad holder and press the screw-

driver.

Mount the upper wedge.
Mount the wedges safety washers.
Place the flexible connection on its stopper.
Connect the rigid connection with the flexible connection.
Mount the safety maintenance washer.
Fill the tank with brake fluid.
Purge the brake circuit.

FRONT BRAKE CALIPER REPAIRING

Dismount the caliper off the vehicle
Dismount:

- the flexible connection;
- the purging screw;
- the protection bellow.

Place a wooden wedge between the piston and the caliper.
Take out the piston by means of compressed air.
Dismount the sealing gasket from the caliper groove by means of a steel blade with

round ends.

Wash with alcohol the parts and blow them with compressed air; clean attentively the

sealing gasket housing.

Check the wear of parts; replace the parts showing wear, scratches or ripple-marks,

with new, original ones and reassemble for sealing test.

BRAKE CALIPER

31

FRONT BEARING ELEMENTS

31 - 15

TEMPORARY REMOUNTING FOR TESTING

Lubricate the caliper groove and the sealing gasket with brake fluid.
Mount the sealing gasket in its seat.
Lubricate the piston with brake fluid and introduce it in the brake caliper. The piston

should be displaced easily by hand; in any case, it shall be not forced or tapped by a
hammer.

Mount the purging screw.

BRAKE CALIPER SEALING CHECKING

Connect to the brake caliper, a pressure gauge attached to a compressed air source.
Create a 0,3 bars pressure in the brake caliper.
Dip the caliper into a vessel with alcohol.
Move the piston several times to remove the air from the sealing gasket seat.
Place a wooden wedge between the piston and the brake caliper.
Check the sealing of the brake caliper at various pressures , without going over 2 bars.

BRAKE CALIPER

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