2002 CHRYSLER TOWN AND COUNTRY brake rotor

OPERATION
The hub and bearing has internal bearings that
allow the hub to rotate with the tire and wheel
assembly (and driveshaft on All-Wheel-Drive vehi-
cles). The five wheel mounting studs mount the tire
and wheel assembly, and disc brake rotor or brake
drum to the vehicle.
On All-Wheel-Drive vehicles, the splined mating of
the driveshaft stub axle and hub allows the drive-
shaft to rotate with the hub and wheel.
Front-Wheel-Drive vehicles equipped with antilock
brakes have a wheel speed sensor and tone wheel
mounted to the rear of the hub and bearing. The tone
wheel rotates with the hub which is sensed by the
wheel speed sensor.
DIAGNOSIS AND TESTING - HUB AND
BEARING
The bearing contained in the hub and bearing
assembly will produce noise and vibration when worn
or damaged. The noise will generally change when
the bearings are loaded. A road test of the vehicle is
normally required to determine the location of a
worn or damaged bearing.
Find a smooth level road surface and bring the
vehicle up to a constant speed. When vehicle is at a
constant speed, swerve the vehicle back and forth
from the left and to the right. This will load and
unload the bearings and change the noise level.
When bearing damage is slight, the noise is some-
times noticeable at lower speeds and at other times
is more noticeable at speeds above 105 km/h (65
mph).
REMOVAL
FRONT-WHEEL-DRIVE VEHICLES
(1) Raise vehicle. (Refer to LUBRICATION &
MAINTENANCE/HOISTING - STANDARD PROCE-
DURE)
(2) Remove wheel and tire. (Refer to 22 - TIRES/
WHEELS - REMOVAL)
(3) Remove brake drum or disc brake caliper and
rotor from hub and bearing. (Refer to 5 - BRAKES/
HYDRAULIC/MECHANICAL/DRUM - REMOVAL-
)(Refer to 5 - BRAKES/HYDRAULIC/MECHANICAL/
ROTOR - REMOVAL)
(4) If equipped with antilock brakes, perform the
following:
(a) Remove secondary (yellow) retaining clip at
rear of wheel speed sensor head (Fig. 8).
(b) Push up on metal retaining clip (Fig. 8) until
it bottoms. This will release wheel speed sensor
head from hub and bearing.
(c) While holding metal clip up, pull back on
wheel speed sensor head removing it from hub and
bearing.
(5) Remove the 4 bolts attaching the hub and bear-
ing to the rear axle.
CAUTION: Corrosion may occur between the hub
and bearing, and the axle. If this occurs the hub
and bearing will be difficult to remove from the
axle. If the hub and bearing will not come out of the
axle by pulling on it by hand, do not pound on the
hub and bearing to remove it from the axle. Damage
will occur. Use the following procedure.
Fig. 7 Hub And Bearing - FWD With ABS
Fig. 8 Sensor Connector At Hub And Bearing
1 - SECONDARY SENSOR RETAINING CLIP
2 - METAL SENSOR RETAINING CLIP
3 - HUB AND BEARING
RSREAR SUSPENSION2-31
HUB / BEARING (Continued)
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(6) If hub and bearing cannot be removed from the
axle by hand, use Remover, Special Tool 8458 (Fig. 9)
and following procedure to press the hub and bearing
out of the axle.
(a) Thread Threaded Guide Pins into hub and
bearing mounting bolt holes.
(b) Remove the two outboard spring plate bolts.
(c) Using the spring plate bolts, install the
Screw Mount, Special Tool 8458±2, as shown (Fig.
9).
(d) Place Push Plate, Special Tool 8458±1, on
ends of Threaded Guide Pins
(e) Place a dab of grease in dimple of Push
Plate.
(f) Tighten the Forcing Screw, Special Tool
8458±3, up against dimple in Push Plate and press
hub and bearing out of axle by continuing to
tighten screw.
(g) Remove the tool.
(h) Reinstall the two outboard spring plate bolts.
Tighten the bolts to 102 N´m (75 ft. lbs.) torque.
(7) Remove the hub/bearing from the rear axle and
brake support plate.
ALL-WHEEL-DRIVE VEHICLES
(1) Set the parking brake.The parking brake is
set to keep the hub and bearing, and axle shaft
from rotating when loosening the hub nut.(2) Raise vehicle. (Refer to LUBRICATION &
MAINTENANCE/HOISTING - STANDARD PROCE-
DURE)
(3) Remove the wheel/tire assembly. (Refer to 22 -
TIRES/WHEELS - REMOVAL)
(4) Remove the cotter pin and nut retainer (Fig.
18) from the stub shaft of the outer C/V joint.
(5) Remove the spring washer (Fig. 17) from the
stub shaft of the outer C/V joint.
(6) Remove the hub nut and washer (Fig. 16) from
the stub shaft of the outer C/V joint.
(7) Remove the 6 bolts mounting the driveshaft
inner joint to the output shaft of the rear drive line
module.
(8) Remove the rear wheel speed sensor (Fig. 19)
from the rear hub/bearing.
(9) Release the parking brake.
(10) Remove the disc brake caliper to adapter
guide pin bolts (Fig. 15).
(11) Remove rear caliper from adapter using the
following procedure. First rotate front of caliper up
from the adapter. Then pull the rear of the caliper
and the outboard brake shoe anti-rattle clip out from
under the rear abutment on the adapter (Fig. 14).
(12) Support caliper to prevent the weight of the
caliper from damaging the flexible brake hose (Fig.
10).
(13) Remove the rotor from the hub/bearing.
(14) Remove driveshaft from rear drive line mod-
ule and hub/bearing. Driveshaft is removed by first
compressing the inner joint on the driveshaft and
removing it from the drive line module. Then, slide
Fig. 9 Removal Using Special Tool 8458
1 - THREADED GUIDE PINS 8458-4
2 - HUB AND BEARING
3 - LEAF SPRING PLATE
4 - FORCING SCREW 8458-3
5 - SCREW MOUNT 8458-2
6 - PUSH PLATE 8458-1
Fig. 10 Correctly Supported Caliper
1 - WIRE
2 - CALIPER
3 - ADAPTER
4 - ROTOR
5 - INNER FENDER
2 - 32 REAR SUSPENSIONRS
HUB / BEARING (Continued)
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the outer joint of the driveshaft out of the hub/bear-
ing.
(15) Remove the hub/bearing to axle mounting
bolts (Fig. 13).
CAUTION: Corrosion may occur between the hub/
bearing and the axle. If this occurs the hub/bearing
will be difficult to remove from the axle. If the hub/
bearing will not come out of the axle by pulling on
it by hand, do not pound on the hub/bearing to
remove it from the axle. Pounding on the hub/bear-
ing to remove it from the axle will damage the hub/
bearing. This damage will result in noise or failure
of the hub/bearing. To remove a hub/bearing which
is corroded to the axle, lightly tap the disc brake
caliper adapter using a soft faced hammer. This will
remove both the disc brake caliper adapter and
hub/bearing from the axle. The hub/bearing will
then need to be removed from the caliper adapter.
(16) Remove the hub/bearing from the axle. (Fig.
12).
(17) If the disc brake caliper adapter and hub/
bearing were removed as an assembly from the axle
and the hub/bearing cannot be removed from the
adapter by hand, use the following procedure to
remove it from the adapter. With a helper supporting
the caliper adapter in his hands, position Remover,
Special Tool 8214-1 on the cast housing of hub/bear-
ing (Fig. 11).Do not position special tool on
inner race of hub/bearing.Lightly strike Remover,
Special Tool 8214-1 with a hammer to remove the
hub/bearing from the caliper adapter.INSTALLATION
FRONT-WHEEL-DRIVE VEHICLES
(1) Install the 4 hub and bearing to axle mounting
bolts into the holes in the flange of the rear axle.
(2)
Install the rear brake support plate on the 4
mounting bolts installed in the flange of the rear axle.
(3) Align the rear hub and bearing with the 4
mounting bolts and start mounting bolts into hub
and bearing. Tighten the 4 bolts in a crisscross pat-
tern until the hub and bearing and brake support
plate is fully and squarely seated onto flange of rear
axle. Tighten the 4 mounting bolts to a torque of 129
N´m (95 ft. lbs.)
NOTE: If equipped with antilock brakes, make sure
wheel speed sensor stays clean and dry as it is
installed into the hub and bearing cap.
(4) If the vehicle is equipped with antilock brakes,
perform the following:
(a) If metal sensor retaining clip is not in the
neutral installed position on hub and bearing cap,
install from the bottom, if necessary, and push clip
upward until it snaps into position.
(b)
Install wheel speed sensor head into rear of
hub and bearing aligning index tab with the notch in
the top of the mounting hole. Push the sensor in until
it snaps into place on the metal retaining clip.
(c) Install secondary (yellow) retaining clip over
wheel speed sensor head and engage the tabs on
each side (Fig. 8).
(5) Install brake drum or disc brake rotor and
brake caliper. (Refer to 5 - BRAKES/HYDRAULIC/
MECHANICAL/DRUM - INSTALLATION)(Refer to 5
- BRAKES/HYDRAULIC/MECHANICAL/ROTOR -
INSTALLATION)
(6) Install wheel and tire (Refer to 22 - TIRES/
WHEELS - INSTALLATION). Tighten the wheel
nuts in the proper sequence to a torque of 135 N´m
(100 ft. lbs.).
(7) Adjust the rear brakes as necessary. (Refer to 5
- BRAKES/HYDRAULIC/MECHANICAL/BRAKE
PADS/SHOES - ADJUSTMENTS)
(8) Lower vehicle.
(9) Road test vehicle to ensure proper operation of
brakes.
ALL-WHEEL-DRIVE VEHICLES
(1) Install hub/bearing on end of axle. (Fig. 12).
(2) Install the hub/bearing mounting bolts. In a
progressive crisscross pattern, tighten the 4 hub/
bearing mounting bolts (Fig. 13) until the disc brake
caliper adapter and hub/bearing are squarely seated
against the axle. Then tighten the hub/bearing
mounting bolts to a torque of 129 N´m (95 ft. lbs.).Fig. 11 Hub/Bearing Removal From Caliper Adapter
1 - SPECIAL TOOL 8214-1
2 - PARK BRAKE CABLE
3 - DISC BRAKE CALIPER ADAPTER
4 - HUB/BEARING
RSREAR SUSPENSION2-33
HUB / BEARING (Continued)
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(3) Install driveshaft in hub/bearing and on output
shaft of rear drive line module. Driveshaft is
installed by first sliding the outer joint of the drive-
shaft into the hub/bearing and then compressing the
inner joint on the driveshaft and installing it on the
output shaft the drive line module.
(4) Install rotor on hub/bearing.
(5) Carefully lower disc brake caliper and brake
shoes over rotor and onto caliper adapter by revers-
ing the removal procedure (Fig. 14).CAUTION: When installing guide pin bolts extreme
caution should be taken not to cross-thread the cal-
iper guide pin bolts.
(6) Install the disc brake caliper guide pin bolts
(Fig. 15). Tighten the guide pin bolts to a torque of
35 N´m (26 ft. lbs.).
Fig. 12 Hub/Bearing Removal And Installation
1 - PARK BRAKE BRAKE SHOE
2 - HUB/BEARING
3 - PARK BRAKE BRAKE SHOE
Fig. 13 Hub/Bearing Mounting Bolts
1 - HUB/BEARING
2 - AXLE
3 - MOUNTING BOLTS
4 - CALIPER ADAPTER
Fig. 14 Removing/Installing Caliper (Left Side
Shown)
1 - LIFT THIS END OF CALIPER AWAY FROM ADAPTER FIRST
2 - DISC BRAKE CALIPER
3 - ADAPTER ABUTMENT
4 - OUTBOARD BRAKE SHOE HOLD DOWN CLIP
5 - OUTBOARD BRAKE SHOE
6 - ROTOR
7 - ADAPTER
Fig. 15 Caliper Guide Pin Bolts
1 - STUD PIN BOLTS
2 - DISC BRAKE CALIPER
3 - DRIVESHAFT
4 - AXLE
5 - DISC BRAKE CALIPER ADAPTER
2 - 34 REAR SUSPENSIONRS
HUB / BEARING (Continued)
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(7) Clean all foreign material off the threads of the
outer C/V joint stub shaft. Install the washer and
hub nut (Fig. 16) on the stub shaft of the outer C/V
joint.
(8) Lower vehicle.
(9) Set the park brake.This is required to keep
the driveshaft from rotating when tightening
and torquing the hub nut and driveshaft inner
joint to driveline module mounting nuts.
(10) Raise vehicle.
(11) Tighten the driveshaft inner joint to drive line
module output shaft mounting bolts to a torque of 61
N´m (45 ft. lbs.).
(12) Tighten the outer C/V joint hub nut (Fig. 16)
to a torque of 244 N´m (180 ft. lbs.).
(13) Install the spring washer (Fig. 17) on the stub
shaft of the outer C/V joint.
(14) Install the nut retainer and cotter pin (Fig.
18) on the stub shaft of the outer C/V joint.
(15) Install the wheel speed sensor on the hub/
bearing and adapter. Install the wheel speed sensor
attaching bolt (Fig. 19). Tighten the wheel speed sen-
sor attaching bolt to a torque of 12 N´m (105 in. lbs).
(16) Install wheel and tire. (Refer to 22 - TIRES/
WHEELS - INSTALLATION)
(17) Tighten the wheel mounting stud nuts in
proper sequence until all nuts are torqued to half
specification. Then repeat the tightening sequence to
the full specified torque of 135 N´m (100 ft. lbs.).
(18) Lower vehicle.CAUTION: Before moving vehicle, pump the brake
pedal several times to insure the vehicle has a firm
brake pedal to adequately stop vehicle.
Fig. 16 Hub Nut And Washer
1 - CALIPER
2 - HUB NUT
3 - WASHER
4 - ROTOR
5 - ADAPTER
Fig. 17 Spring Washer
1 - HUB NUT
2 - STUB SHAFT
3 - ROTOR
4 - SPRING WASHER
Fig. 18 Cotter Pin And Nut Retainer
1 - CALIPER
2 - COTTER PIN
3 - ROTOR
4 - NUT RETAINER
5 - OUTER C/V JOINT
RSREAR SUSPENSION2-35
HUB / BEARING (Continued)
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ment settings to the vehicle specifications for camber,
caster and toe-in. (Refer to 2 - SUSPENSION/
WHEEL ALIGNMENT - SPECIFICATIONS)
(4) If front camber and caster are not within spec-
ifications, proceed to CAMBER AND CASTER below.
If caster and camber are within specifications, pro-
ceed to TOE which can be found following CAMBER
AND CASTER. Rear camber, caster and toe are not
adjustable. If found not to be within specifications,
reinspect for damaged suspension or body compo-
nents and replace as necessary.
CAMBER AND CASTER
Camber and caster settings on this vehicle are
determined at the time the vehicle is designed, by
the location of the vehicle's suspension components.
This is referred to as NET BUILD. The result is no
required adjustment of camber and caster after the
vehicle is built or when servicing the suspension
components. Thus, when performing a wheel align-
ment, caster and camber are not normally considered
adjustable angles. Camber and caster should be
checked to ensure they meet vehicle specifications.
If front camber is found not to meet alignment
specifications, it can be adjusted using an available
camber adjustment bolt package. Before installing a
camber adjustment bolt package on a vehicle found
to be outside the specifications, inspect the suspen-
sion components for any signs of damage or bending.
CAUTION: Do not attempt to adjust the vehicles
wheel alignment by heating, bending or by perform-
ing any other modification to the vehicle's front
suspension components or body.
If camber readings are not within specifications,
use the following procedure to install the front cam-
ber adjustment bolt package and then adjust front
camber.
CAMBER ADJUSTMENT BOLT PACKAGE INSTALLATION
The camber adjustment bolt package contains 2
flange bolts, 2 cam bolts, 2 dog bone washers, and 4
nuts. This package services both sides of the vehicle.
Use the package to attach the strut clevis bracket to
the steering knuckle after the strut clevis bracket
has been modified. To install and adjust the camber
adjustment bolt package, follow the procedure below.
(1) Raise the vehicle until its tires are not support-
ing the weight of the vehicle.
(2) Remove the front tire and wheel assemblies.
CAUTION: When removing the steering knuckle
from the strut clevis bracket, do not put a strain on
the brake flex hose. Also, do not let the weight of
the steering knuckle assembly be supported by the
brake flex hose when removed from the strutassembly. If necessary use a wire hanger to sup-
port the steering knuckle assembly or if required
remove the brake flex hose from the caliper assem-
bly.
CAUTION: The knuckle to strut assembly attaching
bolt shanks are serrated and must not be turned
during removal. Remove the nuts while holding the
bolts stationary.
(3) Remove the top and bottom, strut clevis
bracket to steering knuckle attaching bolts (Fig.
7)and discard. Separate the steering knuckle from
the strut clevis bracket and position steering knuckle
so it is out of the way of the strut.
CAUTION: When slotting the bottom mounting hole
on the strut clevis bracket, do not enlarge the hole
beyond the indentations on the sides of the strut
clevis bracket (Fig. 8).
(4) Using an appropriate grinder and grinding
wheel, slot the bottom hole in both sides of the strut
clevis bracket (Fig. 8).
CAUTION: After slotting the strut clevis bracket
hole, do not install the original attaching bolts when
assembling the steering knuckle to the strut assem-
bly. Only the flange bolts, cam bolts, and dog bone
washers from the service package must be used to
attach the steering knuckle to the strut after the
mounting hole is slotted.
Fig. 7 Clevis Bracket To Steering Knuckle Attaching
Bolts
1 - STRUT CLEVIS BRACKET
2 - ATTACHING BOLTS
3 - TIE ROD END
4 - ROTOR
5 - STEERING KNUCKLE
2 - 52 WHEEL ALIGNMENTRS
WHEEL ALIGNMENT (Continued)
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(3) Remove the wheel and tire assembly from the
vehicle. (Refer to 22 - TIRES/WHEELS - REMOVAL)
(4) Remove the wave washer (Fig. 3) from the end
of the half shaft.
(5) With the vehicle's brakes applied to keep hub
from turning,loosen and removethe half shaft
nut.
(6) Remove the two front disc brake caliper
adapter to steering knuckle attaching bolts (Fig. 4).(7) Remove the disc brake caliper assembly from
the steering knuckle. Caliper assembly is removed by
first rotating top of caliper assembly away from
steering knuckle and then removing bottom of assem-
bly out from under machined abutment on steering
knuckle.
(8) Support disc brake caliper assembly by using a
wire hook and suspending it from the strut assembly
(Fig. 5).Do not allow the brake caliper assembly
to hang by the brake flex hose.
(9) Remove the brake rotor from the hub and bear-
ing assembly.
(10) Remove the steering knuckle-to-strut attach-
ment bolts (Fig. 6) from the steering knuckle.
(11) Pull the steering knuckle from the strut clevis
bracket.
NOTE: Care must be taken not to separate the inner
C/V joint during this operation. Do not allow half
shaft to hang by inner C/V joint after removing
outer C/V Joint from the hub/bearing assembly in
steering knuckle, end of half shaft must be sup-
ported.
(12) Pull steering knuckle assembly down and
away from the outer C/V joint of the half shaft
assembly while pulling the joint out of the hub bear-
ing.
Fig. 3 Wave Washer
1 - HUB/BEARING ASSEMBLY
2 - WAVE WASHER
3 - STUB AXLE
Fig. 4 Front Brake Mounting
1 - BRAKE ROTOR
2 - HUB AND BEARING
3 - STEERING KNUCKLE
4 - ADAPTER MOUNTING BOLTS
5 - BRAKE CALIPER
6 - ADAPTER
7 - CLIP
Fig. 5 Properly Supported Disc Brake Caliper -
Typical
1 - STEERING KNUCKLE
2 - BRAKE FLEX HOSE
3 - CALIPER ASSEMBLY
4 - WIRE HANGER
5 - STRUT ASSEMBLY
RSHALF SHAFT - FRONT3-3
HALF SHAFT - FRONT (Continued)
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DISC BRAKE CALIPER - FRONT
REMOVAL
REMOVAL - FRONT DISC BRAKE CALIPER
(DISC/DISC BRAKES)..................26
REMOVAL - FRONT DISC BRAKE CALIPER
(DISC/DRUM BRAKES).................26
DISASSEMBLY
DISASSEMBLY - CALIPER GUIDE PIN
BUSHINGS (DISC/DISC BRAKES).........27
DISASSEMBLY - CALIPER PISTON AND
SEAL...............................27
CLEANING - CALIPER...................28
INSPECTION - CALIPER..................28
ASSEMBLY
ASSEMBLY - CALIPER GUIDE PIN
BUSHINGS (DISC/DISC BRAKES).........28
ASSEMBLY - CALIPER PISTON AND SEAL . . 28
INSTALLATION
INSTALLATION - FRONT DISC BRAKE
CALIPER (DISC/DISC BRAKES)...........29
INSTALLATION - FRONT DISC BRAKE
CALIPER (DISC/DRUM BRAKES)..........30
DISC BRAKE CALIPER - REAR
REMOVAL - REAR DISC BRAKE CALIPER....30
DISASSEMBLY - CALIPER PISTON AND SEAL . 31
CLEANING - CALIPER...................32
INSPECTION - CALIPER..................32
ASSEMBLY - CALIPER PISTON AND SEAL . . . 32
INSTALLATION - REAR DISC BRAKE CALIPER . 33
DISC BRAKE CALIPER ADAPTER
REMOVAL - FRONT DISC BRAKE CALIPER
ADAPTER...........................34
INSTALLATION - FRONT DISC BRAKE
CALIPER ADAPTER....................34
DISC BRAKE CALIPER GUIDE PINS
REMOVAL - DISC BRAKE CALIPER GUIDE
PINS (DISC/DRUM BRAKES).............34
INSTALLATION - DISC BRAKE CALIPER
GUIDE PINS (DISC/DRUM BRAKES).......34
DRUM
REMOVAL.............................35
INSTALLATION.........................35
FLUID
DIAGNOSIS AND TESTING - BRAKE FLUID
CONTAMINATION.....................35
STANDARD PROCEDURE - BRAKE FLUID
LEVEL CHECKING.....................35
SPECIFICATIONS
BRAKE FLUID........................35
JUNCTION BLOCK
DESCRIPTION - NON-ABS JUNCTION BLOCK . 36
OPERATION - NON-ABS JUNCTION BLOCK . . 36
REMOVAL - NON-ABS JUNCTION BLOCK....36
INSTALLATION - NON-ABS JUNCTION BLOCK . 36
MASTER CYLINDER
DESCRIPTION
DESCRIPTION........................37DESCRIPTION - RHD..................38
OPERATION...........................38
STANDARD PROCEDURE - MASTER
CYLINDER BLEEDING..................38
REMOVAL
REMOVAL - LHD......................39
REMOVAL - RHD......................40
DISASSEMBLY - MASTER CYLINDER (FLUID
RESERVOIR).........................40
ASSEMBLY - MASTER CYLINDER (FLUID
RESERVOIR).........................41
INSTALLATION
INSTALLATION - LHD..................41
INSTALLATION - RHD..................42
PEDAL - ADJUSTABLE
DESCRIPTION.........................42
OPERATION...........................42
DIAGNOSIS AND TESTING - ADJUSTABLE
PEDAL SYSTEM......................43
REMOVAL.............................43
INSTALLATION.........................45
PEDAL TORQUE SHAFT - RHD
REMOVAL.............................47
INSTALLATION.........................47
POWER BRAKE BOOSTER
DESCRIPTION.........................48
OPERATION...........................49
DIAGNOSIS AND TESTING - POWER BRAKE
BOOSTER...........................49
REMOVAL
REMOVAL - LHD......................50
REMOVAL - RHD......................52
INSTALLATION
INSTALLATION - LHD..................53
INSTALLATION - RHD..................55
PROPORTIONING VALVE
DESCRIPTION - PROPORTIONING VALVE
(HEIGHT SENSING)....................56
OPERATION - PROPORTIONING VALVE
(HEIGHT SENSING)....................57
DIAGNOSIS AND TESTING -
PROPORTIONING VALVE (HEIGHT
SENSING)...........................57
REMOVAL - PROPORTIONING VALVE
(HEIGHT SENSING)....................58
INSTALLATION - PROPORTIONING VALVE
(HEIGHT SENSING)....................59
ROTOR
DIAGNOSIS AND TESTING - BRAKE ROTOR . . 59
STANDARD PROCEDURE - BRAKE ROTOR
MACHINING..........................61
REMOVAL - FRONT BRAKE ROTOR........62
INSTALLATION - FRONT BRAKE ROTOR.....62
SPECIFICATIONS
BRAKE ROTOR.......................63
BRAKE ROTOR - EXPORT..............63
5 - 2 BRAKES - BASERS
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