1998 JAGUAR X308 vacuum

Rear Dis
c Brake - Brake PadsVehicl
es With: High Performance Brakes
Re
moval and Installation
Remov

al
1.
W
ARNING: BRAKE DUST, IF INHALED CAN DAMAGE
YOUR HEALTH. ALWAYS REMOVE BRAKE DUST USING A VACUUM
BRUSH. DO NOT USE A COMPRE SSED-AIR LINE TO DISPERSE
BRAKE DUST INTO THE ATMOSPHERE. Failure to follow this
instruction may result in personal injury.
• CAUTIONS:
Brake pads must always be replaced in axle sets.
Replacement of nuts and bolts: Various thread-locking
devices are used on nuts and bolts throughout the vehicle. These
devices restrict the number of ti mes a nut or bolt can be used.
For additional information, refer to: General Service Information

(10
0-00 General Information,
Description and Operation).
The High performance brake caliper is aligned to the brake
disc when it is first installed to the vehicle, therefore, care must
be taken not to disturb this alignment. When removing the
caliper; remove the bolts that se cure the anchor bracket to the
vertical link only. DO NOT loosen any other caliper bolts.
Open engine compartment and fit paint work protection covers
to fenders.
2. R
aise rear of vehicle an
d support on stands.
For additional information, refer to: Using the Workshop Jack

(10
0-02 Jacking and Lifting, General Procedures).
3. Remove rear wheels.
For additional information, refer to: Wheel and Tire
(20
4-04
Wheels and Tires, Remo val and Installation).

4. CAUTI
ON: Remove brake flui
d spillage immediately from
paint work, with clean water.
Loosen brake fluid reservoir-cap.
Position a cloth around the
reservoir to collect any fluid
spillage.
5. Remove brake
pads from caliper.
1. Withdraw pins from caliper.
2. Remove anti-rattle spring.
3. Discard brake pads.

Parking Brake and Actuation - P
arking Brake Control
Re
mo
val and Installation
Remov
a
l
W
A
RNING: BRAKE DUST, IF INHALED CAN DAMAGE YOUR
HEALTH. ALWAYS REMOVE BRAKE DUST USING A VACUUM
BRUSH. DO NOT USE A COMPRESSED-AIR LINE TO DISPERSE BRAKE DUST INTO THE ATMOSPHERE.
CAUTION: Replacement of nuts and bolts: Various thread-locking devices are used on nuts and bolts throughout the
vehicle. These devices restrict the number of times a nut or bolt can be used. See section 100-00 for information.
1. Position vehi cl
e on a four-post lift.
2. Release parking brake.

3. Releas
e tension on parking brake cable.
Slacken bu

t do not remove adjustment nut.

4. Releas
e parking brake cable.
Remo

ve clip.
Re
mo
ve clevis pin.
5. Remove driver seat for access . Refer to operation 76.70.01.
6. Remove trim from hand lever. Refer to operation 76.13.63.
7. Carefully reposition carpet from around hand lever for access.

8. Disconnect park ing-br
ake, warning-light switch connector.
9. Remove hand lever from vehicle.

Parking Brake and Actuation - P
arking Brake Shoes
Re
mo
val and Installation
Remov
a
l
W
A
RNING: BRAKE DUST, IF INHALED CAN DAMAGE YOUR
HEALTH. ALWAYS REMOVE BRAKE DUST USING A VACUUM
BRUSH. DO NOT USE A COMPRESSED-AIR LINE TO DISPERSE BRAKE DUST INTO THE ATMOSPHERE.
CAUTION: Replacement of nuts and bolts: Various thread-locking devices are used on nuts and bolts throughout the
vehicle. These devices restrict the number of times a nut or bolt can be used. See section 100-00 for information.
1. Ra
ise rear of vehicle and support
on stands. Refer to section
100-02.
2. Remove both rear wheels.
3. Remove both rear brake discs. Refer to operation 70.10.13.

4. Re
move front shoe retaining pin.
Align hub ac

cess hole with retaining pin.
Turn pin until
it rel
eases
from backing plate.

5. Remove adju ster assembly.
Move front shoe forwards.

Remove adju
ster assembly.

6. Re
move rear shoe retaining pin.
Al
ign hub ac
cess hole with retaining pin.
Turn pin until
it rel
eases
from backing plate.
7. Remove brake shoes from parkin g brake lever-mechanism and
remove shoes from vehicle.
8. Remove return sp rings from shoes.

Hydrau
lic Brake Actuation - Brake Pedal and Bracket, Brake Booster and
Brake Master Cylinder
Re mo
val and Installation
Remova

l
• C
A
UTIONS:
Replacement of nuts and bolts: Various thread-locking de vices are used on nuts and bolts throughout the vehicle.
These devices restrict the number of times a nut or bolt can be used. See section 100-00 for information.
Remove brake fluid spilla ge immediately from paint work, with clean water.
1. Position vehi cl
e on a four-post lift.
2. Open engine compartment and fit paint work protection covers
to fenders.
3. Disconnect battery ground cable (IMPORTANT, refer to
operation 86.15.19 for fu rther information).
4. Remove engine compartment rear cover. Refer to operation
76.11.35.

5. Reposi
tion the mounting bracket of the cruise control vacuum-
valves for access (if installed).
R e
move screws.
Reposition bracket.


6. Disc
onnect low-level warning connector from master cylinder.
7. Disconnect vacuum pipe from brake booster.
1. Disconnect pipe.
2. Remove and discard seal.

Install peda
l housing to vehicle.
Make sure ped

al housing apertu
re is positioned correctly.
Inst
all and tighten nuts to 15-20 Nm.
3. Position cloth underneath master cylinder to collect brake fluid
spillage.

4. Inst
all brake tubes to master cylinder.
Re

move plugs.
Connect

and tighten brake tubes. Refer to Specification
section 206-06 for torque setting.
R
emove cloth from underneath master cylinder.

5. Con
nect throttle cabl
e to pedal housing.
Inst
all cable to grommet.
Inst

all cable to
pedal housing.

6. Conne
ct throttle inner ca
ble to pedal grommet.
7. Connect vacuum pipe elbow to brake booster.
1. Install new seal.
2. Connect pipe.

8. Conne ct
low-level warning connector to master cylinder.

9. Inst al
l cruise control vacuum-valves, mounting bracket.
Install and tigh
ten bolts.

10 . Conne
ct stop lamp switch connector.
Conne
ct
connector.
Re
posi
tion carpet.
11. Connect battery ground cable (IMPORTANT, see operation
86.15.15 for further information).
12. Bleed brake system. See operation 70.25.03.
13. Install engine compartment rear cover. Refer to operation
76.11.35.
14. Remove paint-work protection covers and close engine
compartment.

15 . Conne
ct battery ground cable (I
MPORTANT, refer to operation
86.15.19 for further information).

Power Brake Actuation - Brake Booster
Description and Operation


The brake b
ooster provides assi
stance by reinforcing the driver's effort when brakin g. The reinforced assistance
provided by the booster is proportional to the driver's effort applied to the brake pedal.
The brake force applied by
the driver is incr
eased by the booster in a ratio of 6.5:1.
Th
e vacuum used to operate the booster
is formed in the engine's intake manifold. The booster is connected to the
intake manifold by a hose.
The boost
er is fail-safe therefore, if a fault develops in
the vacuum unit, the braking system will still function.
However, the driver will have to apply a greater fo rce to the brake pedal to slow down the vehicle.


It e
m
Par
t
Number
De
scr
iption
1—Mas
t
er Cylinder / Reservoir - refer to 206-06
2—Booster

3—Pedal Box
- refer to 206-06
4—Vacuu
m
Hose
5—No
n
-Return Valve

Steering System - Gen
eral Informatio
n - Power Steering System Vacuum
Filling and Bleeding
Gen e
ral Procedures
Fluid Ho

ses



1.

Parts L i
st
It
e
m
De
scr
iption
1R
e
turn hose
2High
pressure h
ose
2. If vacuum filling equipment is available, proceed as follows:
Disconnect both the
high pres
sure hose and return hose
from the PAS pump and the re turn hose from the steering
rack.
D rain as much fl
uid as possible from the system by
turning the steering from lock to lock two or three times.
Re conn
ect all hoses.
Fi
ll
the system using the vacuum equipment according to
the manufacturers instructions.
St art
the engine and top up
the fluid as necessary.
Turn the steering from lock to lock two or three ti mes wi
th
the engine running, topping up with fluid as necessary.
If possibl
e, run the engine for twenty minutes to expel any

remaining air.