Range Rover Classic. Manual — part 123
70
BRAKES
6
DESCRIPTION AND OPERATION
BRAKE PIPE LAYOUT
Left hand drive
HOSES
1. Front LH flexible hoses.
2. Front RH flexible hoses.
3. Intermediate flexible hose.
BRAKES
7
DESCRIPTION AND OPERATION
BRAKE PIPE LAYOUT
Right hand drive
PIPES
4. Feed to front LH hose connector.
5. Feed to front RH hose connector.
6. Feed to front LH caliper.
7. Feed to front RH caliper.
8. Feed to rear LH caliper.
9. Feed to rear RH caliper.
10. Feed to two way connector.
11. Feed to intermediate hose.
12. Two way connector.
13. Three way connector.
14. Pressure reducing valve.
BRAKES
1
REPAIR
BRAKE SYSTEM BLEED (NON ABS)
Service repair no - 70.25.02
Also.
See Brake System Bleed (ABS)
The hydraulic system comprises two completely
independent circuits. The rear calipers and lower
pistons in the front calipers form the secondary circuit,
while upper pistons in the front calipers form the
primary circuit. The following procedure covers
bleeding complete system, but it is permissible to
bleed one circuit only if disconnection is limited to that
circuit.
Bleeding will be assisted if engine is run or a vacuum
supply is connected to servo.
WARNING: If engine is running during
brake bleeding process ensure that neutral
or park is selected in main gearbox and
that park brake is applied.
When bleeding any part of secondary circuit, almost
full brake pedal travel is available. When bleeding
primary circuit only, brake pedal travel will be
restricted to approximately half.
NOTE: When bleeding system commence
with caliper furthest from master cylinder.
Finally tighten bleed screws to
10 Nm.
Bleeding
1. Fill fluid reservoir with correct grade of fluid.
See
LUBRICANTS, FLUIDS AND CAPACITIES,
Information, Recommended Lubricants and
Fluids
NOTE: Maintain correct fluid level
throughout procedure of bleeding.
2. Connect bleed hose to bleed screw on rear
caliper furthest from master cylinder.
3. Submerge free end of bleed hose in a container
of clean brake fluid.
4. Loosen bleed screw 1/2-3/4 of a turn.
5. Operate brake pedal fully and allow to return.
NOTE: Allow at least five seconds to
elapse with foot right off pedal to ensure
pistons fully return before operating pedal
again.
6. Repeat 5 until fluid clear of air bubbles appears
in container. Keeping pedal fully depressed,
tighten bleed screw.
7. Remove bleed hose, replace dust cap on bleed
screw.
8. Repeat 1 to 7 for other rear caliper.
9. Remove front wheel furthest from master
cylinder
70
BRAKES
2
REPAIR
10. Connect a bleed hose to primary bleed screw on
front caliper.
11. Connect a bleed hose to secondary bleed screw
on same side of caliper as primary screw.
12. Repeat 3 to 7 for front caliper, bleeding two
screws simultaneously.
13. Connect a bleed hose to other screw on front
caliper furthest from master cylinder.
14. Repeat 3 to 7 for second secondary screw on
front caliper.
15. Refit front wheel.
16. Repeat 9 to 15 for front caliper nearest master
cylinder.
MASTER CYLINDER
- Lucas Girling - Type 25.4mm AS/AS
Service repair no - 70.30.08 - Remove
Service repair no - 70.30.09 - Repair
Remove
1. Disconnect battery negative lead.
2. Place a suitable container under master cylinder
to catch brake fluid from cylinder when brake
pipes are disconnected.
3. Thoroughly clean immediate area around all
outlet ports. Remove each brake pipe, sealing
each pipe and outlet port with suitable plugs to
prevent ingress of foreign matter.
4. Disconnect electrical plug from low fluid switch
on reservoir cap.
5. Remove two nuts securing master cylinder to
servo unit remove also spring and plain washers.
6. Detach master cylinder from servo, remove
reservoir cap and drain brake fluid into a suitable
container.
WARNING: Do not use brake fluid
previously drained or bled from system.
Carefully dispose of unwanted fluid, if
stored in a sealed container, ensure that container
is marked USED BRAKE FLUID.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст