BRAKES
SERVICE AND PARKINGCONTENTS
ANTI-LOCK BRAKING SYSTEM
TROUBLESHOOTING.........................9
BRAKE BOOSTER..............................
71
BRAKE LINE....................................73
BRAKE PEDAL..................................
63ELECTRONIC CONTROL UNIT
G-SENSOR
PARKING BRAKES.............................103
REAR DISC BRAKE............................
65SERVICE ADJUSTMENT PROCEDURES
..a 47
ABS Power Relay Check....................
62
Bleeding.......................................50Brake Booster Operating
Inspection.......49Brake Fluid Level Sensor Check...........
48Brake Pedal Inspection and Adjustment
...
47Check Valve Operation Check..............
49Flat Battery Remedy.........................
62Front Disc Brake Pad Check and
Replacement..................................51Front Disc Brake Rotor Inspection.........
53Inspection of Hydraulic Unit.................
59Measurement of Wheel Speed Sensor
Output Voltage................................
57Parking Brake Lever Stroke Check.........
48Parking Brake Switch Check................
49Proportioning Valve Function Test..........
50Rear Brake Disc Run-out Check............
57Rear Brake Disc Run-out Correction.......
57Rear Brake Disc Thickness Check..........
56Rear Disc Brake Pad Check and
Replacement..................................55Run-out Check................................
54Run-out Correction...........................
54
Thickness Check..............................55SPECIAL TOOLS...............................
6SPECIFICATIONS...............................
2General Specifications........................
2
Lubricants.....................................5
Service Specifications........................4Torque Specifications..................
.:....4TROUBLESHOOTING..........................
7
WHEEL SPEED SENSOR
95
CAUTION
When servicing brake assemblies or components, do not create dust by sanding, grinding or by cleaning
brake
parts with a dry brush or with compressed air. A WATER DAMPENED CLOTH SHOULD BE USED.
Many brake components contain asbestos fibers which can become air-borne if dust is.created duringservice operations. Breathing dust which contains asbestos fibers can cause serious bodily harm.
5-2BRAKES- Specifications
SPECIFl,CATIONS
GENERAL SPECIFICATIONS
ItemsMaster cylinder
J-wI.D.
’ ,, ’ ,;!mm (in.)
Brake booster
TvwEffective dia. of power cylindermm (in.)
Boosting ratio [Brake pedal depressing
force]5.0 [at 220 N (48 Ibs.)lProportioning valve
TypeSplit point
Decompression ratio
kPa (psi)
Front brakes
TypeDisc O.D.
Disc thickness
Pad thickness
Wheel cylinder I.D.
Clearance adjustmentmm (in.)
mm (in.)
mm (in.)
mm (in.)
Rear
drsc brakes
TypeDisc O.D.
Disc thickness
Pad thickness
Wheel cylinder I.D.
Clearance adjustmentmm (in.)
mm (in.)
mm (in.)
mm (in.)
Rotor teeth
Front wheel side
Rear wheel side
Speed sensor
-
Parking brakes’
TvwBrake lever type
Cable arrangementVehicles without
ABSVehicles with ABS
Tandem type
(with level sensor)
22.2
(78)Tandem type
(with level sensor)
23.8 P5/1dVacuum type
230
(9.0)Vacuum type
Front side: 180 (7.0)Rear side: 205
(8.0)5.5 [at 220
N (48 Ibs.)lDual type
4,200
(597)
0.3Dual type
4,200
(597)
3.3
Floating caliper, single-piston,ventilated disc
(M-R44V)256
(10.1)24
i.94)16.0
(.63)
53.9 (2 l/8)Automatic
Floating caliper, single-piston,ventilated disc
(M-R44V)256
(10.1)24
i.94)16.0
(.63)
53.9 (2 %)
AutomaticFloating caliper,
single-piston,ventilated disc
(AD30P)265
(10.43
10 (39)
14.5
(.57)30.1
(1 Yl6)Automatic
Floating caliper, single-piston,ventilated. disc
(AD30P)265
(10.4)
10 l.39)14.5
(.57)30.1
(1 3/6)Automatic
-
-
47
47
vlagnet coil type
Mechanical brake acting
Vlechanical brake acting
on rear wheels
3n rear wheels
Lever type
-ever type
V-typeV-type
-
5-4BRAKES- Specifications
SERVICE SPECIFICATIONS
Items
Standard valueBrake pedal heightmm (in.)
Brake pedal free playmm (in.)
Brake pedal to floorboard clearancemm (in.)
Parking brake lever stroke.
Output pressure proportioning valve
MPa (psi)
Split point
N (Ibs.) [Nm (ft.lbs.)lBooster push rod to master cylinder piston clearance
mm (in.)
9 inch brake booster
7 + 8 inch brake booster
Speed sensor’s internal resistancek&
Clearance between the speed pole piece and
the toothed rotormm (in.)
LrmttLeft/right proportioning valve out pressure difference
MPa (psi)
DISC brake pad
thrcknessmm (in.)Front
drsc thicknessmm (in.)Rear
dtsc thrcknessmm (in.)
DISC runout
mm (in.)
Front
Rear
Hub end playmm (In.)
NOTEl : Vehicleswith ABS
TORQUE SPECIFICATIONSSpecifications176-181 (6.9-7.1)
3-8
(.l-.3)80 (3.1) or more
5-7 notches
3.95-4.45 (561-633)
3.45-3.95 (491-561).
5.15-5.65 (732-804) i8.2
(1,163)14.65-5.15 (661-732j.17.7 (1,095))
70
(15) or less I4 (3) or less]
0.8-1.0 (.031-,039)
0.5-0.7 (.020-.028)
0.8-1.2"
0.3-0.9 (.012-,035)"60.4 (57)
2.0
(.08)22.4
(.882)8.4
(.331)0.07
(.0028)0.08 l.0031)
0.2
(.008)
ItemsPedal support bracket installation bolts
Pedal support bracket installation nut
Pedal rod to pedal support bracket
Pedal rod to clutch pedal bracket
Clutch pedal bracket installation bolt
Turn-over spring mounting bolt
Stop lamp switch mounting nut
Clutch master cylinder installation nuts
Clutch pedal installation nut
Lever assembly (A) installation nut
Lever assembly (B) installation nut
I:: ::I .:‘i j ,:~~ -__j.-, .‘- ‘+‘+gg&p.~j:;.;1--?.+.k
Nm
8-12
IO-15
17-2617-26
8-12
17-26
10-15
10-15
20-25
20-25
20-25
Tft.lbs.
6-9
7-11
12-19
12-19.6-9
12-197-11
7-1114-18
14-18
-
BRAKES - Specifications
ItemsMaster cylinder to brake booster
Piston stopper bolt
Nipple installation screw
Brake booster installation nuts
Fitting
Flared brake line nuts
Brake hose bracket installation bolts
Front disc brake assembly installation bolts
Lock pin (front)
Guide pin (front)
Bleeder screw
Wheel bearing nut
Dust shield to axle beam
Rear disc brake assembly installation bolts
Drive shaft to companion flange
Companion flange to rear axle shaft
Brake hose to caliper body (rear)
Lock pin (rear)
Guide pin (rear)Spindle lever to parking brake lever
Rear speed sensor installation bolt
Speed sensor bracket installation bolt
Rotor to front hub
Rotor to rear hub
Nm8-12
1.5-3.0
1.5-3.0
11-17
15-18
13-1717-26
80-10064-86
64-86
7-9
200-2609-14
50-6055-65
160-20025-35
22-32
22-32
40-559-14
9-14
7-l 1
9-14
ft.lbs.6-9
l-2
l-2
8-12
11-13
9-1212-19
58-72
46-62
46-62
5-7
144-188”
7-1036-43
39-47
116-159
18-25
16-23
16-23
29-40
7-10
7-10
5-a
7-10
LUBRICANTSNo!xD-
Items
Brake fluidSpecified lubricant
MOPAR Brake Fluid/
Conforming to
DOT3 or DOT4Brake pedal bushing inner surface
Clevls pin and washer
Parking brake lever sliding parts
Bushing inner surfaceMOPAR Multi-mileage Lubricant
Part No. 2525035 or equivalent
guiisur
dd
lght
clidc
Pad assembly
luter shim
nner shim
43l a14FOO97
14A0399
Apply repair kit grease to both sides of the inner shims.Specified grease: Brake grease SAE 5310,
NLGI No.1Caution
1. Make sure that the friction surfaces of pads and
brake discs and free of grease and other contami-
nants.
2.The grease should never squeeze out from around
the shim.
9.Check the disc brake drag force as follows.(1) Start the engine, and after depressing the brake pedal
hard two or three times, stop the(2) Turn brake disc forward
10 tie&.
engine.
(3) Use a spring balance to meastiie fh-e rotation Sliding re-
sistance of the hub in the forward direction.(4) Calculate the drag torque of the disc brake (difference
between measured values in 3 and 4).Standard value: 70
N (15.4 Ibs.) or less
10. If the disc brake drag force exceeds
tlie standard value,
disassemble piston and clean the piston. Check for corro-
sion or worn piston seal, and check the sliding condition of
the lock pin and guide pin.FRONT DISC BRAKE ROTOR INSPECTION
CAUTIONWhen servicing disc brakes, it is necessary to exercise caution to keep the disc brakes within the
allowable service values in order to maintain normal brake operation.
Before re-finishing or re-processing the brake disc surface, the following conditions should be checked.
Inspection itemsRemarks
Scratches, rust, saturated lining materials
and wearlIf the vehicle is not driven for a certain period, the sections of the discsthat are not in contact with lining will become rusty, causing noise and
shuddering.
lIf grooves resulting from excessive disc wear and scratches are not re-moved prior to installing a new pad assembly, there will momentarily
beinappropriatecontact between the disc and thelining(pad).
Run-out or drift
Ehange in thickness (parallelism)Excessive run-out or drift of the discs will increase the pedal depression
resistance due to piston knock-back.
If the thickness of the disc changes, this will cause pedal pulsation, shud-
deringand surging.
14A0391
RUN-OUT CHECK
1.Remove the caliper support; then raise the caliper ass
bly upward and secure by using wire.
2.Inspect the disc surface for grooves, cracks, and rust. Cl
the disc throughly and remove all rust.3. Place a dial gauge approximately 5 mm
(.2 in.) from thiouter circumference of the brake disc, and measure
tt$
run-out of the disc._iLimit: 0.07 mm
(.0028 in.)-2
NOTE
Tighten the nuts in order to secure the disc to the hub..‘l;i,!
..,;RUN-OUT CORRECTION
NOSFTAB
1.If the run-out of the brake disc is equivalent to or exceeds
the limit specification, change the phase of
the disc and
hub, and then measure the run-out again.
(1) Before removing the brake disc, chalk both sides of the
wheel stud on the side at which run-out is greatest.(2) Remove the brake disc, and then place a dial gauge
2s
shown in the illustration; then move the hub in the axial
direction and measure the play.Limit: 0.2 mm
(.008 in.)
If the play is equivalent to or exceeds the limit, disas-
semble the hub knuckle and check each part.
2.(3) If the play does not exceed the limit specification, and
then check the run-out of the brake disc once again.
Mount the brake disc on the position dislocated from
the chalk mark.If the run-out cannot be corrected by changing the phase
of the brake disc, replace the disc or turn rotor with on the
car type brake lathe (MAD DL-8700PF or equivalent).’
.,“, . . . -..
: : :.. t,:...!b
THl,~,KNES~i;CHECK, .‘i.- _d--.-.--.
1: ‘Using $.$i,crometer, measure disc thickness at eight posi- I
tions;:‘.@‘proximately 45” apart and 10 mm (.39 in.) in f,r$,m;,
i theouter’edge of the disc.‘I
+ Brbke.Disc Thickness..!+@Card value: 24 mm
(94 in.)
i,,~~~:-~4!-~~~t;:22.4 mm (.882 in.)
: ,aThrckness Variation (At least 8 position)
_ The ‘*difference between any thickness. measure-
ments should not be more than 0.015 mm
(.0006:
in.).,,7.9’-,... .J .
: .A12fi: If~thei;di& is beyond t& Jim@ for thickneT.%, ‘ie’mdv.,.
one. If thickness variation exceeds theace the:disc”or turn. rotor with on the.
(MAD, DL-87OOPF or equivalent).-
;_:.j ::!‘_, Ii..;, ‘I
t&;&C BRAKE PAD CHECK AND
., . .:L”” cn:
,.,1. ~:“ch&ii -brake pad thickness through, caliper body$%ck.~:?;{&:?p., d ii,; ,i..i; I&+# ~4:‘ ” :’/I..: “j.. .
~~Tl$$$‘~&b mm (08 cn.)
-.‘-‘: (~~#&q,,I,.:: y;./.
C&&ion”,- ‘-, -, iii,,, I.“‘?,t
--. +-When the limit is exceeded, replace the pad&at-:
,--both&sides, and also the brake pads for the wheels
onth-e opposite side at the same time.&.Jf,tb@re is a
signjfjcant difference in the thicknesses
of the pads on the left and right sides, check the
A.J. :%!idi,~g!~ondStion.of the piston, ‘lock p,in sleeve ;a,$$
f * ,midq py I sleye._, ,: .’ i.. . ii’.
2.Loosen the parking brake cable (from the vehicle interior),
an$dis.co-nnect the parking brake end installed to the rearI II Iorake,. assemory.3.
f5$_move.,lock pin. Lift caliper assembly and retain ‘&h,
yps..,(y&on,DO
r$$v$e off. the stiecial!.grease. that’ is on the &ckpi”
cii’@!fow it to..c,ontait;inate tl;
f :.,3-:: ” ,, ” -_.__ _, .“_,./‘7,.< :$, ~. . 6