light JEEP CHEROKEE 1994 Service Repair Manual

(2) Mark location of non threaded hole in clutch
cam and blank area of case with paint stripe (Fig.
123).
(3) Align and install overrunning clutch cam in
case (Fig. 123).Be sure cam is correctly installed.
Bolt holes in cam are slightly countersunk on
one side. This side of cam faces rearward (to-
ward rear support).
(4) Partially install overrunning clutch in cam
(Fig. 123).
(5) Verify that non threaded hole in clutch cam is
properly aligned (Fig. 123). Check alignment by
threading a clutch cam bolt into each hole. Adjust
cam position if necessary before proceeding.
(6) Seat overrunning clutch in clutch cam after
verifying correct cam alignment.
(7) Install overrunning clutch cam bolts.Clutch
cam bolts are shorter than rear support bolts.
Tighten cam bolts to 17 Nzm (150 in. lbs. or 13 ft.
lbs.) torque.(8) Lubricate overrunning clutch rollers, springs
and cam with ATF Plus transmission fluid.
REAR BAND, LOW-REVERSE DRUM AND REAR
SUPPORT INSTALLATION
A different rear band and linkage is used in 30RH
and 32RH transmissions.
The 30RH transmission has a single wrap band,
one pivot pin and a band link to connect the lever
(Fig. 124). The lever adjusting screw is in direct con-
tact with the servo piston. A strut is used to connect
the lever to the band lug.
The 32RH transmission has a double wrap band, a
pivot pin, and a reaction pin (Fig. 125). The band le-
ver pivots against a lug on the band. A strut is not
used. The reaction pin functions as the stop, or locat-
ing mechanism for the band lower lug.
Rear Band Installation Procedure
(1) On 32RH transmission, install band compo-
nents and low-reverse drum as follows:
(a) Install reaction pin in case (Fig. 126).
(b) Position band in case and seat band lug
against reaction pin.
(c) Slide low-reverse drum through band (Fig.
127). Then tilt drum slightly and start clutch race
into overrunning clutch rollers.
(d) Rotate drum in clockwise direction and push
drum inward until race is seated in overrunning
clutch.
(e) Install rear band lever (Fig. 128). Be sure le-
ver pivot pin is fully seated in case afterward.
(2) On 30RH transmission, install band compo-
nents and low-reverse drum as follows:
Fig. 123 Overrunning Clutch Cam Alignment
Fig. 121 Location Of Non-Threaded Hole In Clutch
Cam
Fig. 122 Location Of Blank Area In Clutch Cam Seat
Of Case
J30RH/32RH TRANSMISSION OVERHAUL 21 - 147

(a) Assemble band and link. Be sure that notch
in one side of link is facing band (Fig. 129).
(b) Position band and link in case (Fig. 130).
(c) Slide low-reverse drum through band (Fig.131). Then tilt drum slightly and start clutch race
into overrunning clutch rollers.
(d) Rotate drum in clockwise direction and push
drum inward until race is seated in overrunning
clutch.
(e) Install rear band lever and pivot pin. Be sure
lever pivot pin is fully seated in case afterward.
(3) Hold low-reverse drum in position and install
rear support (Fig. 132)
(4) Align support with punch marks made during
disassembly.
(5) Install and tighten rear support bolts to 17 Nzm
(150 in. lbs.) torque.
Fig. 124 Rear Band Components (30RH)
Fig. 125 Rear Band Components (32RH)
Fig. 126 Rear Band Reaction Pin Installation (32RH)
Fig. 127 Rear Band And Low-Reverse Drum
Installation (32RH)
Fig. 128 Rear Band Lever And Pivot Pin Installation
(32RH)
21 - 148 30RH/32RH TRANSMISSION OVERHAULJ

Manual Valve
The manual valve is operated by the gearshift link-
age. The valve diverts fluid to the apply circuits ac-
cording to shift lever position.
Primary Regulator Valve
The primary regulator valve (Fig. 13) modulates
line pressure to the clutches and brakes according to
engine load. The valve is actuated by throttle valve
pressure.
During high load operation, the valve increases line
pressure to maintain positive clutch and brake en-gagement. At light load, the valve decreases line
pressure just enough to maintain smooth engage-
ment.
Throttle Valve and Downshift Plug
The throttle valve and downshift plug (Fig. 14) con-
trol throttle pressure to the primary regulator valve.
The downshift plug and throttle valve are operated
by the throttle valve cam and throttle cable in re-
sponse to engine throttle position. Throttle valve
pressure is also modulated by the cut-back valve in
second, third and fourth gear ranges.
Fig. 11 Lower Body Components
Fig. 10 Upper Body Components
JAW-4 AUTOMATIC TRANSMISSION 21 - 161

(32) Install new synchro hub snap ring (Fig. 51).
(33) Install sleeve on synchro hub. Be sure sleeve
is installed with beveled spline ends facing stop ring.
(34) Install new pads on mode fork and install
shift rail in fork.
(35) Engage mode fork in synchro sleeve (Fig. 52).
(36) Install mode fork-mainshaft assembly in case
(Fig. 52). Be sure the mode fork rail is seated in both
range fork bushings.
(37) Assemble and install output shaft and drive
chain (Fig. 53). Lift mainshaft slightly to ease chain
and shaft installation.
(38) Install mode spring on shift rail (Fig. 54).
(39) If front output shaft rear bearing is to be re-
placed, install new bearing as follows:(a) Remove bearing from rear case with Bearing
Remover MD-998346 and two suitable size
wrenches (Fig. 55).
Fig. 51 Installing Synchro Hub Snap Ring
Fig. 50 Drive Sprocket, Stop Ring And Synchro Hub
Installation
Fig. 52 Installing Mainshaft And Mode Fork
Assembly
Fig. 53 Drive Chain And Front Output Shaft
Installation
Fig. 54 Installing Mode Spring
JNP231 TRANSFER CASE 21 - 287

(46) Install magnet in front case.
(47) Apply 3 mm (1/8 in.) wide bead of Mopar gas-
ket maker, silicone adhesive sealer, or Loctite 518 to
seal surface of front case.
(48) Align and install rear case on front case (Fig.
61). Be sure case locating dowels are in place and
that mainshaft splines are engaged in oil pump inner
gear.(49) Install and tighten front case-to-rear case at-
taching bolts to 41 Nzm (30 ft. lbs.) torque.Be sure
to install a washer under each bolt used at case
dowel locations.
(50) Install mainshaft rear bearing in rear retainer
(Fig. 62). Tap old bearing out of retainer with ham-
mer and brass drift. Then install new bearing with
Tool Handle C-4171 and Installer 5064.
(51) Apply 3 mm (1/8 in.) wide bead of Mopar gas-
ket maker, silicone adhesive sealer, or Loctite 518 to
flange surface of rear retainer.
(52) Install locating dowel in rear retainer and in-
stall retainer on case. Tighten retainer bolts to 24
Nzm (18 ft. lbs.) torque.
(53) Install new rear bearing snap ring (Fig. 63).
Lift mainshaft slightly to seat snap ring in shaft
groove.
(54) Remove extension housing seal if not removed
previously.
Fig. 60 Pickup Tube, Oil Screen And Pump
Installation
Fig. 61 Installing Rear Case On Front Case
Fig. 62 Installing Mainshaft Rear Bearing In Rear
Retainer
Fig. 63 Installing Rear Bearing Snap Ring
JNP231 TRANSFER CASE 21 - 289

(41) Install mode fork and mainshaft assembly in
case (Fig. 69). Rotate mainshaft slightly to engage
shaft with low range gears.
(42) Rotate mode fork pin into shift sector slot.
(43) Install shift rail (Fig. 70).Be sure rail is
seated in both shift forks.
(44) Rotate shift sector to align lockpin hole in low
range fork with access hole in case.(45) Insert an easy-out in range fork lockpin to
hold it securely for installation (Fig. 71).Lockpin is
slightly tapered on one end. Insert tapered end
into fork and rail.
(46) Insert lockpin through access hole and into
shift fork (Fig. 71). Then remove the easy-out and
seat the pin with pin punch.
(47) Install plug in lockpin access hole.
(48) Install transfer case shift lever and attaching
nut. Tighten nut to 30 Nzm (22 ft. lbs.) torque.
(49) Install detent plunger, detent spring and de-
tent plug in the case (Fig. 72).
Fig. 69 Installing Mainshaft And Mode Fork
Fig. 70 Installing Shift Rail
Fig. 71 Installing Low Range Fork Lockpin
Fig. 72 Installing Detent Pin, Spring And Plug
JNP242 TRANSFER CASE 21 - 313

(67) Install locating dowel in rear retainer (if re-
moved) and install the retainer on the case. Tighten
the retainer bolts to 41 Nzm (30 ft. lbs.) torque.
(68) Install new rear bearing snap ring (Fig. 82).
Lift mainshaft slightly to seat the snap ring if neces-
sary.
(69) Remove extension housing seal if not removed
previously.
(70) Replace extension housing bushing with driver
tools (Fig. 83).(71) Install new extension housing oil seal (Fig.
84).
Fig. 83 Replacing Extension Housing Bushing
Fig. 84 Replacing Extension Housing Seal
Fig. 81 Installing Rear Bearing In Retainer
Fig. 82 Installing Rear Bearing Snap Ring
21 - 316 NP242 TRANSFER CASEJ

WHEELS AND TIRES
CONTENTS
page page
SPECIFICATIONS....................... 11
TIRES................................. 1VEHICLE VIBRATION..................... 9
WHEELS............................... 6
TIRES
INDEX
page page
Cleaning of Tires.......................... 2
General Information........................ 1
Pressure Gauges......................... 2
Repairing Leaks.......................... 3
Replacement Tires........................ 2Rotation................................ 3
Tire Inflation Pressures..................... 2
Tire Noise or Vibration..................... 4
Tire Wear Patterns........................ 4
Tread Wear Indicators...................... 3
GENERAL INFORMATION
Tires are designed for each specific vehicle. They
provide the best overall performance for normal op-
eration. The ride and handling characteristics match
the vehicle's requirements. With proper care they
will give excellent reliability, traction, skid resis-
tance, and tread life. These tires have specific load
carrying capacities. When correctly inflated, they
will operate properly.
Tires used in cool climates, and with light loads
will have a longer life than tires used in hot climates
with heavy loads. Abrasive road surfaces will accel-
erate tire wear.
Driving habits have more effect on tire life than
any other factor. Careful drivers will obtain much
greater mileage than careless drivers.
Driving habits that shorten the life of any tire;
²Rapid acceleration and deceleration
²Severe application of brakes
²High-speed driving
²Taking turns at excessive speeds
²Striking curbs and other obstacles
It is very important to follow the tire rotation in-
terval
IDENTIFICATION
Tire type, size, aspect ratio and speed rating are
encoded in the letters and numbers imprinted on the
side wall of the tire. Refer to the chart to decipher
the tire identification code (Fig. 1).
Performance tires will have a speed rating letter
after the aspect ratio number. The speed rating isnot always printed on the tire sidewall. The letterS
indicates that the tire is speed rated up to 112 mph.
²Qup to 100 mph
²Tup to 118 mph
²Uup to 124 mph
²Hup to 130 mph
²Vup to 149 mph
²Zmore than 149 mph (consult the tire manufac-
turer for the specific speed rating)
An All Season type tire will have eitherM+S,M
&SorMÐS(indicating mud and snow traction) im-
printed on the side wall.
RADIAL-PLY TIRES
Radial-ply tires improve handling, tread life, ride
quality and decrease rolling resistance.
Radial-ply tires must always be used in sets of
four. Under no circumstances should they be used on
the front only. They may be mixed with temporary
spare tires when necessary, but reduced speeds are
recommended.
Radial-ply tires have the same load-carrying capac-
ity as other types of tires of the same size. They use
the same recommended inflation pressures.
SPARE TIRE (TEMPORARY)
The compact spare tire is designed for emergency
use only. The original tire should be repaired and re-
installed at the first opportunity. Refer to Owner's
Manual for complete details.
JWHEELS AND TIRES 22 - 1

²remove the vapor canister from the fender inner
panel (Figs. 42 and 45);
²remove the A/C Receiver/Drier from the fender in-
ner panel (Fig. 40); and
²if equipped, remove the Daytime Running Light
(DRL) module from the fender inner panel (Fig. 46).
²support the hood and remove the hood support rod
from the fender inner panel.
(3) Remove the hood bumper from the fender inner
panel (Fig. 47).
(4) Raise and support the vehicle.
(5) Remove the front wheel.
(6) Remove the fender liner, fender flare and re-
tainers (Fig. 48):
²remove the screws that attach the lower part of
Fig. 41 Hood Ajar Switch Removal/Installation
Fig. 42 Power Distribution Center and Vapor Canister
Fig. 43 Coolant Recovery Bottle
Fig. 39 Coolant Recovery Bottle, Windshield Washer
Fluid Reservoir & Hood Support Rod
Fig. 40 Hood Ajar Switch, Speed Servo & A/C
Receiver/Drier
JBODY COMPONENTSÐXJ VEHICLES 23 - 15

flare to the fender outer panel;
²remove the rivets that attach the flare to the air
deflector;
²remove the retainers that attach the fender liner
to the fender inner panel;
²remove the nuts that attach the fender liner to the
fender outer panel and flare retainers;
²remove the fender liner from between the fender
panels;
²remove the push-nuts that attach the retainers to
the fender outer panel; and
²remove the retainers and flare from the fender
outer panel.
(7) Remove the grille opening panel (GOP).
(8) Remove the air deflector.
(9) Remove the rocker panel moulding from the
fender.(10) Remove all the fender braces (Fig. 49).
(11) Remove the fender lower screws (Fig. 49).
(12) Remove the fender top, front and the rear
screws. Remove the fender from the inner fender
panel (Fig. 49).INSTALLATION
(1) Position the fender on the inner fender panel.
(2) Install all of the fender screws finger-tight.
(3) Install the fender braces.
(4) Align the fender with the body panels and
tighten the fender screws to 8.5 Nzm (76 in-lbs)
torque.
(5) Install the grille opening panel (GOP).
(6) Install the air deflector.
(7) Install the fender flare and retainers (Fig. 50).
Then install the fender liner.
²position the retainers and the flare on the fender;
²install the push-nuts to attach the retainers to the
fender;
²position the fender liner between the fender and
fender inner panel (Fig. 51);
Fig. 44 Speed Servo
Fig. 45 Vapor Canister
Fig. 46 Daytime Running Light (DRL) Module
Fig. 47 Hood Bumper
23 - 16 BODY COMPONENTSÐXJ VEHICLESJ