seats JEEP CHEROKEE 1988 Service Repair Manual
[x] Cancel search | Manufacturer: JEEP, Model Year: 1988, Model line: CHEROKEE, Model: JEEP CHEROKEE 1988Pages: 1378, PDF Size: 19.9 MB
Page 331 of 1378
Remove axle shaft oil seal from axle housing tube.
3) Place axle shaft in a vise. Drill a 1/4" (6.35 mm) hole
3/4 of the way through bearing retaining ring. Chisel off bearing
retaining ring. Do not use a torch. Press bearing off axle. Remove
seal and retainer plate.
Installation
Lubricate bearing and seal lip. Install retainer plate and
seal over axle. Press axle shaft bearing and retaining ring on shaft
simultaneously. Ensure bearing and ring are seated against axle shaft
shoulder. To complete installation, reverse removal procedure to
complete installation.
WHEEL CYLINDER
Removal
Remove wheel assemblies, brake drums and brake shoes.
Disconnect brake line at wheel cylinder. Do not bend brake line away
from cylinder. Remove cylinder-to-support plate bolts. Remove
cylinder.
Installation
To install, reverse removal procedure. Start brake line
fitting into cylinder before installing cylinder to support plate.
OVERHAUL
DISC BRAKE CALIPER
Disassembly
1) Clean caliper exterior with brake cleaning solvent. Drain
residual fluid from caliper and place caliper on a clean working
surface.
2) Remove piston from caliper by applying compressed air to
inlet port. Use just enough pressure to ease piston out of bore.
Protect piston from damage with folded shop towels. Do not try to
catch piston by hand.
3) Pry dust boot out of bore with screwdriver. Do not scratch
bore. Using a small plastic or wooden stick, pry piston seal from
bore. See Fig. 11. Remove bleeder screw, sleeves, and bushings.
Cleaning & Inspection
Clean all parts with brake cleaning solvent. Blow dry parts.
Check for damaged or worn parts. Stains on piston bore can be polished
with crocus cloth. Do not use emery cloth or any other abrasive.
Reassembly
1) Lubricate bore and new seal with brake fluid. Install seal
in groove using fingers. Lubricate piston with brake fluid. Slide
metal retainer portion of dust boot over open end of piston. Pull boot
rearward until boot lip seats in piston groove.
2) Push retainer portion of dust boot forward until boot is
flush with rim at open end of piston and boot fold snaps into place.
Insert piston in bore being careful not to unseat piston seal.
3) Push piston to bottom of bore using hammer handle.
Position dust boot retainer in counterbore at top of piston bore. Seat
dust boot retainer with Dust Boot Installer (J-22904 or J-33028).
Reverse removal procedure to complete installation.
Page 334 of 1378
MASTER CYLINDER - GRAND WAGONEER
NOTE: Do not hone master cylinder bore. Bore has a highly polished
"bearingized" surface. Honing will cause premature failure
of rubber parts.
Disassembly
1) Clean outside of cylinder thoroughly and remove cover.
Drain fluid. Pump piston to remove any remaining fluid. On
Delco/Moraine models with composite fluid reservoir, install metal
flange in vise and pry reservoir off with a pry bar. Bendix composite
reservoir is held on by 4 bolts on bottom of reservoir. On manual
brake models, remove boot from cylinder to uncover push rod retainer.
2) Pry up retainer tab to release retainer. Remove snap ring
from groove in cylinder bore. Remove both piston assemblies. Remove
remaining internal parts from bore. Note direction of piston seals.
Remove and discard all rubber parts from piston assemblies.
3) Tube seats can be removed if damaged. Enlarge holes in
tube seats using a 13/64" drill. Place a large flat washer over outlet
and thread a 1/4" x 20 x 3/4" screw into seat. Tighten screw until
seat is loose. See Fig. 14. Remove seat, screw and washer.
Fig. 14: Removing Tube Seat from Master Cylinder
Courtesy of American Motors/Jeep Corp.
Inspection
Inspect cylinder bore for scoring or corrosion. Staining
Page 335 of 1378
which has not pitted or roughened surface of cylinder can be removed
with crocus cloth. If cylinder bore is scored, pitted or corroded,
replace master cylinder.
Reassembly
1) Install replacement tube seats by threading a spare brake
line tube nut into hole. Turn nut in until tube seat bottoms. Do not
cock tube seat in hole. Remove nut and check for burrs which may have
been loosened by nut. Install secondary seals on secondary piston,
with cup lips facing away from each other.
2) Install primary seal, spring retainer and return spring on
secondary piston. Install seal so lip faces interior of master
cylinder when installed. Lubricate cylinder bore with clean brake
fluid and install secondary piston assembly. Lubricate primary piston
seals and install primary piston assembly in bore. Hold primary piston
downward in bore and install snap ring.
3) Install composite reservoir (if equipped). On models with\
push-on composite fluid reservoir, invert reservoir, install grommets
and press on body using a rocking motion. Install master cylinder
cover and new diaphragm.
4) On vehicles with manual brakes, assemble brake pedal push
rod through retainer (if equipped). Push retainer over end of master
cylinder and install rubber boot.
Fig. 15: Exploded View of Master Cylinder (Grand Wagoneer)
Courtesy of American Motors/Jeep Corp.
WHEEL CYLINDER
Page 378 of 1378
out far enough to remove first ball bearing. Remove remaining ball
bearings in same manner.
4) Rotate outer CV joint cage outward until it is at a 90
degree angle to installed position. Align 2 oblong holes in outer
joint cage with slots in interior wall of spindle housing and remove
cage and inner race.
5) Remove inner race from cage by aligning shoulder between
race grooves with inside of oblong cage holes. Rotate inner race out
of cage using larger of 2 openings in cage. Remove retaining ring,
spacer ring and outer boot.
Fig. 7: Exploded View of Jeep (Select-Trac) Drive Axle
Courtesy of Chrysler Motors.
CLEANING & INSPECTION
1) Wash all parts in solvent and dry. Inspect inner and outer
ball races for damage. Inspect splined stub shaft for wear, cracks and
twisted splines.
2) Inspect all 6 balls for pitting, cracking or scoring.
Dulling of surface is normal. If any damage is found, replace entire
CV joint assembly. Polished areas in races and on cage spheres are
normal and DO NOT require joint replacement.
REASSEMBLY
1) Apply a light coat of CV grease on ball grooves of inner
and outer races. Install inner race into cage using a rotating action
opposite of removal. Inner race snap ring should face axle side.
2) Be sure ball bearing retaining ring is installed on inner
race side facing small end of cage. Align windows of cage with outer
race lands, and pivot cage with inner race into tilted position
(opposite of removal).
3) Install ball bearings one at a time into outer CV joint as
cage is tilted and rotated. After balls are installed into cage, pivot
cage and inner race into installed position.
4) Slide new seal clamp for small end of boot seal, boot seal
and seal retainer onto axle shaft. Coat inside lip (large diameter end
of seal) with CV grease. Slide seal retainer on end of seal.
5) Spread ears of bearing race snap ring, and slide CV joint
onto axle shaft until snap ring seats in groove. Pack joint with
approximately 1/2 of grease provided in seal kit. Apply remaining
grease inside seal.
6) Slide seal toward joint until small end of seal is in
groove in axle shaft. Position small clamp over small end of seal and
into groove and tighten.
Page 386 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual PINION DEPTH
1) Depth Gauge Set (D-271) is used to determine pinion depth\
.
Place Master Pinion Block (D-139 on Model 44; D-120 on Model 60 and
61; D-137 on Model 70; T80T-4020-F42](/img/16/57037/w960_57037-385.png "JEEP CHEROKEE 1988 Service Repair Manual PINION DEPTH
1) Depth Gauge Set (D-271) is used to determine pinion depth\
.
Place Master Pinion Block (D-139 on Model 44; D-120 on Model 60 and
61; D-137 on Model 70; T80T-4020-F42")
PINION DEPTH
1) Depth Gauge Set (D-271) is used to determine pinion depth\
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Place Master Pinion Block (D-139 on Model 44; D-120 on Model 60 and
61; D-137 on Model 70; T80T-4020-F42 on Model 80) in pinion bore of
carrier. Put Arbor Discs (D-115-4-44 on Model 44; D-116-2 on Models
60,61 and 70; (T88T-4020-A) on Arbor (D-115-3). Install arbor in
carrier with discs riding in bearing bore.
2) Put Pinion Height Block (D-115-1-44 on Model 44; D-116-1
on Models 60, 61, 70 and 80) on top of master pinion block with side
against arbor. Place Scooter Block (115-2) with Dial Indicator (D-106\
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5) on small step of pinion height block. Zero dial indicator with
scooter block flat on pinion height block.
3) Move scooter block so dial indicator tip touches arbor.
Move block back and forth (perpendicular to arbor) to get highest
reading. This reading, plus or minus value etched on pinion head, is
thickness of shim pack necessary for pinion bearing.
4) On Model 80, Use Gauge Tube (D81T-4020-F51) and Gauge
Block (D81T-4020-F56) to determine required thickness of shim pack.
5) On all models, measure shims separately with micrometer.
If baffle is used, its thickness must be included in shim pack. This
is also true if slinger is used between inner bearing and head of
pinion shaft. Place pinion height shim pack in carrier bore for inner
bearing race. Drive bearing race into carrier, making sure cup is
fully seated.
PINION BEARING PRELOAD
1) Drive outer pinion bearing into carrier housing. Press
inner pinion bearing onto pinion shaft using Press Tube (C-3095-A).
Ensure bearing seats fully. Insert pinion shaft into carrier. Install
outer bearing, slinger (if equipped), flange, washer and nut.
NOTE: Pinion preload shims and oil seal should NOT be installed at
this time.
2) Using an INCH lb. torque wrench, tighten pinion nut until
10 INCH lbs. (1.13 N.m) rotational torque is required to move pinion
shaft. Recheck pinion depth with arbor and discs at this time. Place
pinion height block on face of pinion shaft.
3) Place dial indicator on small step of height block for
Model 44, 60 and 61 axles. Place dial indicator on high step of block
for Models 70 and 80 axles. Zero dial indicator and move it across
arbor to get highest reading. If reading is within .002" (.05 mm) of
etching on pinion face, pinion depth is correct.
NOTE: If pinion depth is not with .002" (.05 mm) of etched number
on face of pinion, shim pack under inner bearing race must
be changed before proceeding with differential settings.
4) Remove pinion nut, washer, flange, slinger and outer
bearing. Place preload shims (removed during disassembly) on pinion.
Install bearing and slinger. After lightly coating lips with gear oil,
install pinion seal in carrier housing. Install flange, washer and NEW
pinion nut. Tighten nut to specification. See TORQUE SPECIFICATIONS
table at end of this article.
5) Using an INCH lb. torque wrench, measure preload
(rotational torque) of pinion shaft. Rotational torque required to
keep pinion shaft turning freely and smoothly should be 20-40 INCH
lbs. (2.3-4.5 N.m). If preload needs to be increased, remove a few
shims and recheck. To decrease preload, add a few shims and recheck.
See Fig. 14 .
Page 516 of 1378
\003* E LE C TR IC AL S YSTE M U NIF O RM IN SPEC TIO N G UID ELIN ES *
1 988 J e ep C hero ke e
GENERAL INFORMATION
Electrical System Motorist Assurance Program
Standards For Automotive Repair
All Makes and Models
INTRODUCTION TO MOTORIST ASSURANCE PROGRAM (MAP)
CONTENTS
OVERVIEW OF MOTORIST ASSURANCE PROGRAM
OVERVIEW OF SERVICE REQUIREMENTS & SUGGESTIONS
ACTUATOR MOTORS (SOLENOIDS) (ELECTRIC)
ACTUATOR MOTORS (VACUUM)
AIR BAGS
ALTERNATORS AND GENERATORS
AMPLIFIERS
ANTENNAS
BATTERIES
BATTERY CABLES
BATTERY CABLES
BATTERY HOLD DOWN HARDWARE
BATTERY TRAYS AND HOLD DOWN HARDWARE
BATTERY WIRES
BELTS
BULB SOCKETS
BULBS, SEALED BEAMS AND LEDS
CD PLAYERS
CIGARETTE LIGHTER ASSEMBLIES
CIRCUIT BREAKERS
CLUTCH SWITCHES
CONNECTORS
CONTROL MODULES
CRUISE CONTROL BRAKE SWITCHES
CRUISE CONTROL CABLES
CRUISE CONTROL CLUTCH SWITCHES
CRUISE CONTROL LINKAGES AND CABLES
CRUISE CONTROL RESERVOIRS
CRUISE CONTROL TUBES
CRUISE CONTROL VACUUM DUMP RELEASE VALVES
CRUISE CONTROL VACUUM HOSES, TUBES AND RESERVOIRS
CRUISE CONTROL VEHICLE SPEED SENSORS
DEFOGGERS
DEFROSTERS
DELAYS
DIMMERS
ELECTRIC HEATERS
EQUALIZERS
FUSE BLOCKS
FUSE BOXES AND BLOCKS
FUSES, FUSIBLE LINKS AND CIRCUIT BREAKERS
FUSIBLE LINKS
GAUGES
GENERATORS
GROUND CABLES AND STRAPS
GROUND STRAPS
HEADLIGHT ADJUSTERS
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS)
HORNS AND SIRENS
Page 536 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual and wiring for excessive resistance.
(3) - Some integral bearing assemblies with sensors may require
replacement.
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\](/img/16/57037/w960_57037-535.png "JEEP CHEROKEE 1988 Service Repair Manual and wiring for excessive resistance.
(3) - Some integral bearing assemblies with sensors may require
replacement.
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and wiring for excessive resistance.
(3) - Some integral bearing assemblies with sensors may require
replacement.
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DEFOGGERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
DEFROSTERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
DELAYS
DELAY INSPECTION \
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Binding, affecting
performance ............ A .. Require repair or replacement.
Binding, not affecting
performance ............ 2 .. Suggest repair or replacement.
Broken .................. A .. Require repair or replacement.
Burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Burned, not affecting
performance ............ 2 ........... ( 1) Suggest repair or
replacement.
Cracked, affecting
performance ............ A .. Require repair or replacement.
Cracked, not affecting
performance ............ 1 .. Suggest repair or replacement.
Inoperative ............. A ........... ( 2) Require repair or
replacement.
Melted, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Melted, not affecting
performance ............ 2 ........... ( 1) Suggest repair or
replacement.
Missing ................. C ............ Require replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
Page 538 of 1378
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
(1) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Inoperative includes intermittent operation or out of OEM
specification.
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ELECTRIC HEATERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
EQUALIZERS
See
RECEIVERS, AMPLIFIERS, EQUALIZERS AND SUB-WOOFER VOLUME CONTROLS .
FUSE BLOCKS
See FUSE BOXES AND BLOCKS .
FUSE BOXES AND BLOCKS
FUSE BOX AND BLOCK INSPECTION \
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Broken, affecting
performance ............ A ............ Require replacement.
Broken, not affecting
performance ............ .. ........ No service suggested or
required.
Burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Burned, not affecting
performance ............ 2 ........... ( 1) Suggest repair or
replacement.
Connector broken ........ A .. Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A .. Require repair or replacement.
Connector melted ........ A ........... ( 1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Cover missing ........... C ... Require replacement of cover.
Cracked, affecting
performance ............ A .. Require repair or replacement.
Cracked, not affecting
performance ............ 1 .. Suggest repair or replacement.
Melted, affecting
performance ............ A ........ ( 1) Require replacement.
Page 542 of 1378
adjusters.
Seized .................. A .. Require repair or replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
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HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND
SEATS)
HEATING ELEMENT (DEFROSTER, DEFOGGER, ELECTRIC HEATER AND SEAT)
INSPECTION
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Condition Code Procedure
Attaching hardware
broken ................. A ... Require repair or replacement
of hardware.
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware not
functioning ............ A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector (Weatherpack
type) leaking .......... A .. Require repair or replacement.
Connector melted ........ A ........... ( 1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Inoperative ............. A ........... ( 2) Require repair or
replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Wire lead burned ........ A .. Require repair or replacement.
Wire lead conductors
exposed ................ B .. Require repair or replacement.
Wire lead open .......... A .. Require repair or replacement.
Wire lead shorted ....... A .. Require repair or replacement.
( 1) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Inoperative includes intermittent operation or out of OEM
specification.
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HORNS AND SIRENS
HORN AND SIREN INSPECTION \
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Condition Code Procedure
Page 552 of 1378
![JEEP CHEROKEE 1988 Service Repair Manual SEAT HEATERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
SECURITY ALARM SENSORS
SECURITY ALARM SENSOR INSPECTION \](/img/16/57037/w960_57037-551.png "JEEP CHEROKEE 1988 Service Repair Manual SEAT HEATERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
SECURITY ALARM SENSORS
SECURITY ALARM SENSOR INSPECTION \")
SEAT HEATERS
See
HEATING ELEMENTS (DEFROSTERS, DEFOGGERS, ELECTRIC HEATERS AND SEATS) .
SECURITY ALARM SENSORS
SECURITY ALARM SENSOR INSPECTION \
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Condition Code Procedure
Attaching hardware
missing ................ C .......... Require replacement of
hardware.
Attaching hardware threads
damaged ................ A ... Require repair or replacement
of hardware.
Attaching hardware threads
stripped (threads
missing) ............... A ... Require repair or replacement
of hardware.
Connector broken ........ A .. Require repair or replacement.
Connector melted ........ A ........... ( 1) Require repair or
replacement.
Connector missing ....... C ............ Require replacement.
Inoperative ............. B ........... ( 2) Require repair or
replacement. Further
inspection required.
Missing ................. C ............ Require replacement.
Resistance out of
specification .......... B .. Require repair or replacement.
Terminal broken ......... A .. Require repair or replacement.
Terminal burned, affecting
performance ............ A ........... ( 1) Require repair or
replacement.
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
Threads damaged ......... A .. Require repair or replacement.
Threads stripped (threads
missing) ............... A ............ Require replacement.
Wire lead conductors
exposed ................ B .. Require repair or replacement.
Wire lead corroded ...... A .. Require repair or replacement.
Wire lead open .......... A .. Require repair or replacement.
Wire lead shorted ....... A .. Require repair or replacement.
( 1) - Determine cause and correct prior to repair or
replacement of part.
( 2) - Inoperative includes intermittent operation or out of OEM
specification.
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SIRENS