Toyota
Jeep Cherokee
 Service Manual
Transmission and transfer case » Automatic transmission-30RH » Disassembly and assembly
Transmission

DISASSEMBLY

(1) Remove transmission from vehicle.

Fig. 113 Valve Body Transfer Plate Screws
Fig. 113 Valve Body Transfer Plate Screws

1 - TRANSFER PLATE
2 - VALVE BODY
3 - SEPARATOR PLATE

Fig. 117 Park Rod
Fig. 117 Park Rod

1 - MANUAL LEVER
2 - E-CLIP
3 - PARK ROD

Fig. 118 Securing Detent Ball And Spring With Retainer Tool
Fig. 118 Securing Detent Ball And Spring With Retainer Tool

1 - SPECIAL TOOL 6583
2 - DETENT BALL AND SPRING HOUSING

(2) Install a suitable tail shaft housing plug to avoid contaminating internal components with cleaning solvents.

(3) Clean exterior of transmission with suitable solvent or pressure washer.

(4) Remove torque converter from transmission.

(5) Remove throttle and shift levers from valve body manual shaft and throttle lever shaft.

(6) Mount transmission in repair stand C-3750-B or similar type stand (Fig. 123).

(7) Remove extension housing.

(8) Remove fluid pan.

(9) Remove park/neutral position switch and seal (Fig. 124).

(10) Remove valve body.

(11) Remove accumulator spring and piston (Fig.

125).

(12) Loosen front band adjusting screw lock nut (Fig. 126) 4-5 turns. Then tighten band adjusting screw until band is tight around front clutch. This prevents front/rear clutches from coming out with pump and possibly damaging clutch or pump components.

Fig. 119 Manual Valve
Fig. 119 Manual Valve

1 - MANUAL VALVE
2 - VALVE BODY

Fig. 120 Manual And Throttle Levers
Fig. 120 Manual And Throttle Levers

1 - PARK ROD
2 - E-RING
3 - WASHER
4 - MANUAL LEVER
5 - MANUAL VALVE
6 - SPRING
7 - DETENT BALL
8 - VALVE BODY

(13) Remove oil pump bolts.

(14) Thread bolts of Slide Hammer Tools C-3752 into threaded holes in pump body flange (Fig. 127).

(15) Bump slide hammer weights outward to remove pump and reaction shaft support assembly from case (Fig. 127).

Fig. 121 Manual Valve And Throttle Lever Alignment
Fig. 121 Manual Valve And Throttle Lever Alignment

1 - THROTTLE LEVER
2 - MANUAL LEVER VALVE ARM
3 - MANUAL VALVE
4 - KICKDOWN VALVE

Fig. 122 Adjusting Screw Bracket, Springs, and Valves
Fig. 122 Adjusting Screw Bracket, Springs, and Valves

1 - ADJUSTER BRACKET
2 - LINE PRESSURE ADJUSTER
3 - PRESSURE REGULATOR VALVE
4 - SWITCH VALVE
5 - VALVE BODY
6 - TRANSFER PLATE
7 - THROTTLE VALVE
8 - SLEEVE
9 - KICKDOWN VALVE
10 - THROTTLE PRESSURE ADJUSTER

(16) Loosen front band adjusting screw until band is completely loose (Fig. 126).

(17) Squeeze front band together and remove band strut (Fig. 128).

Fig. 123 Repair Stand
Fig. 123 Repair Stand

1 - TRANSMISSION
2 - STAND

Fig. 124 Park/Neutral Position Switch
Fig. 124 Park/Neutral Position Switch

1 - NEUTRAL SWITCH
2 - SOLENOID CONNECTOR

Fig. 125 Accumulator Piston And Spring
Fig. 125 Accumulator Piston And Spring

1 - ACCUMULATOR PISTON
2 - PISTON SPRING

Fig. 126 Front Band Adjusting Screw Lock Nut
Fig. 126 Front Band Adjusting Screw Lock Nut

1 - LOCK-NUT
2 - FRONT BAND ADJUSTER

Fig. 127 Oil Pump/Reaction Shaft Support
Fig. 127 Oil Pump/Reaction Shaft Support

1 - OIL PUMP AND REACTION SHAFT SUPPORT ASSEMBLY
2 - SLIDE HAMMER TOOLS C-3752

Fig. 128 Front Band Strut
Fig. 128 Front Band Strut

1 - BAND LEVER
2 - BAND STRUT
3 - FRONT BAND

(18) Remove front and rear clutch units as an assembly. Grasp input shaft, hold clutch units together and remove them from case (Fig. 129).

(19) Lift front clutch off rear clutch (Fig. 130). Set clutch units aside for overhaul.

(20) Remove output shaft thrust washer from output shaft (or from rear clutch hub) (Fig. 131).

(21) Remove output shaft thrust plate and washer from output shaft hub (Fig. 131).

(22) Remove front band from case (Fig. 132).

(23) Remove extension housing from transmission case.

Fig. 129 Front/Rear Clutch Assemblies
Fig. 129 Front/Rear Clutch Assemblies

1 - FRONT BAND
2 - FRONT CLUTCH AND DRUM
3 - TRANSMISSION HOUSING
4 - REAR CLUTCH

(24) Remove governor body and park gear from output shaft.

(25) Remove output shaft and planetary geartrain as assembly (Fig. 133). Support geartrain with both hands during removal. Do not allow machined surfaces on output shaft to become nicked or scratched.

Fig. 130 Separating Front Clutch From Rear Clutch
Fig. 130 Separating Front Clutch From Rear Clutch

1 - FRONT CLUTCH
2 - REAR CLUTCH

Fig. 131 Output Shaft Thrust Plate and Washer
Fig. 131 Output Shaft Thrust Plate and Washer

1 - OUTPUT SHAFT
2 - THRUST PLATE
3 - THRUST WASHER

Fig. 132 Front Band
Fig. 132 Front Band

1 - FRONT BAND
2 - TRANSMISSION HOUSING

Fig. 133 Planetary Geartrain
Fig. 133 Planetary Geartrain

1 - SLOTS
2 - LOW-REVERSE DRUM
3 - PLANETARY GEARTRAIN
4 - TRANSMISSION HOUSING
5 - LUGS

(26) Loosen rear band adjusting screw 4-5 turns (Fig. 134).

(27) Remove snap ring that secures low-reverse drum to rear support hub, however do not remove drum (Fig. 135).

(28) Remove bolts attaching rear support to transmission case and pull support from low-reverse drum (Fig. 136).

(29) Remove bolts attaching overrunning clutch cam and low-reverse drum to transmission case (Fig.

137).

Fig. 134 Rear Band Adjuster Location
Fig. 134 Rear Band Adjuster Location

1 - PLANETARY GEARTRAIN
2 - REAR BAND
3 - LEVER
4 - SERVO
5 - ADJUSTER

Fig. 135 Low-Reverse Drum Snap Ring
Fig. 135 Low-Reverse Drum Snap Ring

1 - REAR BAND
2 - REAR SUPPORT HUB
3 - LOW-REVERSE DRUM SNAP RING
4 - LOW-REVERSE DRUM

Fig. 136 Rear Support
Fig. 136 Rear Support

1 - OIL PAN FACE
2 - TRANSMISSION HOUSING
3 - REAR SUPPORT

Fig. 137 Overrunning Clutch Cam Bolt Locations
Fig. 137 Overrunning Clutch Cam Bolt Locations

1 - OVERRUNNING CLUTCH CAM BOLTS

(30) Using snap-ring plier, pull rear band anchor pin (located on the servo side of the rear support) from transmission case.

(31) Remove rear band and link from transmission (Fig. 138).

(32) Separate link from rear band (Fig. 139).

(33) If necessary remove front and rear band servo levers. All transmission components can be serviced without removing the levers.

(a) Using a 1/4 inch drive extension remove front band reaction pin access plug (Fig. 140).

Fig. 138 Rear Band and Link
Fig. 138 Rear Band and Link

1 - LINK
2 - REAR BAND

Fig. 139 Rear Band and Link
Fig. 139 Rear Band and Link

1 - NOTCHED SIDE OF LINK GOES TOWARD BAND

(b) Remove front band reaction pin with pencil magnet. Pin is accessible from converter housing side of case (Fig. 141).

(c) Remove front band lever (Fig. 142).

(d) Using snap-ring plier, pull rear band lever pivot from transmission case (Fig. 143).

(e) Separate rear band servo lever from transmission.

Fig. 140 Front Band Reaction Pin Access Plug
Fig. 140 Front Band Reaction Pin Access Plug

1 - 1/488 DRIVE EXTENSION
2 - FRONT BAND REACTION PIN ACCESS PLUG

Fig. 141 Front Band Reaction Pin
Fig. 141 Front Band Reaction Pin

1 - PENCIL MAGNET
2 - FRONT BAND REACTION PIN

Fig. 142 Front Band Lever
Fig. 142 Front Band Lever

1 - FRONT BAND LEVER

Fig. 143 Rear Band Servo Lever Pin
Fig. 143 Rear Band Servo Lever Pin

1 - PARALLEL JAW SNAP RING PLIERS
2 - REAR BAND LEVER PIVOT PIN

(34) Compress front servo rod guide about 1/8 in.

with large C-clamp and Tool C-4470, or Spring Compressor Tool C-3422-B (Fig. 144).

(35) Remove front servo rod guide snap ring (Fig.

144). Exercise caution when removing snap ring. Servo bore can be scratched or nicked if care is not exercised.

(36) Remove compressor tools and remove front servo rod guide, spring and servo piston.

(37) Compress rear servo spring retainer about 1/16 in. with C-clamp and Tool C-4470 or SP-5560 (Fig. 145). Valve Spring Compressor C-3422-B can also be used to compress spring retainer.

(38) Remove rear servo spring retainer snap ring.

Then remove compressor tools and remove rear servo spring and piston.

Fig. 144 Compressing Front Servo
Fig. 144 Compressing Front Servo

1 - SPRING COMPRESSOR TOOL C-3422-B
2 - ROD GUIDE SNAP RING

ASSEMBLY

(1) Install rear servo piston, spring and spring retainer. Compress rear servo spring and retainer with Compressor Tool C-3422-B (Fig. 145) or a large C-clamp.

(2) Install front servo piston, spring, and rod guide. Compress front servo rod guide with Valve Spring Compressor C-3422-B and install servo snap ring (Fig. 144).

(3) Assemble link bar to band. Notched side of link toward band (Fig. 143).

(4) Insert rear band through pan opening in transmission case.

(5) Insert hook on band onto adjuster lever.

(6) Align holes in link bar with hole in transmission case outboard of rear support opening (Fig. 142).

(7) Insert anchor pin into case through link bar.

Fig. 145 Compressing Rear Servo Spring
Fig. 145 Compressing Rear Servo Spring

1 - LARGE C-CLAMP
2 - TOOL C-4470 OR SP5560
3 - SERVO SPRING RETAINER

(8) Examine bolt holes in overrunning clutch cam.

Note that one hole is not threaded (Fig. 146). This hole must align with blank area in clutch cam bolt circle.

NOTE: The bolt holes in cam are slightly countersunk on one side. This side of cam faces rearward (toward rear support).

(9) Lubricate overrunning clutch rollers, springs and cam with Mopart ATF Plus 3, type 7176, transmission fluid.

(10) Position overrunning clutch on a clean, flat work surface with countersunk holes downward.

(11) Place rear of low-reverse drum over overrunning clutch and align clutch rollers to hub of drum.

(12) While slightly pivoting low-reverse drum, push hub of drum into overrunning clutch. Verify that countersunk holes are facing outward. Cam should be able to rotate in the drum clockwise only.

(13) Insert a suitable awl through the rear support mounting hole closest to the pan sealing face. The awl should be next to the wide space area at the back of transmission case.

(14) Insert low-reverse drum and overrunning clutch into front of transmission case and into rear band.

(15) Insert awl tip into the threaded hole next to the non-threaded hole in the overrunning clutch cam.

Verify that non-threaded hole is aligned with wide space area on transmission case.

(16) Push low-reverse drum rearward to close gap between cam and case.

(17) Install overrunning clutch cam bolts. Clutch cam bolts are shorter than rear support bolts.

Tighten cam bolts to 17 N·m (150 in. lbs. or 13 ft.

lbs.) torque.

Fig. 146 Clutch Cam Alignment
Fig. 146 Clutch Cam Alignment

1 - TRANSMISSION CASE
2 - OVERRUNNING CLUTCH
3 - NON-THREADER HOLE
4 - WIDE SPACE AREA

(18) Hold low-reverse drum in position so rear support will not push it out of overrunning clutch.

(19) Insert rear support into opening at rear of transmission case (Fig. 147).

(20) Align support with the embossed arrow in the direction of the pan face.

Fig. 147 Rear Support
Fig. 147 Rear Support

1 - OIL PAN FACE
2 - TRANSMISSION HOUSING
3 - REAR SUPPORT

(21) Install and tighten rear support bolts to 17 N·m (150 in. lbs.) torque.

(22) Install snap ring to retain low-reverse drum to hub of rear support (Fig. 148).

Fig. 148 Low-Reverse Drum Snap Ring
Fig. 148 Low-Reverse Drum Snap Ring

1 - REAR BAND
2 - REAR SUPPORT HUB
3 - LOW-REVERSE DRUM SNAP RING
4 - LOW-REVERSE DRUM

(23) Lubricate output shaft, rear support bore and low-reverse drum hub with transmission fluid.

(24) Install assembled output shaft and planetary geartrain in case (Fig. 149).

(25) Align drive lugs on rear planetary gear with slots in low-reverse drum (Fig. 149). Then seat planetary assembly in drum.

(26) Install governor on output shaft.

Fig. 149 Output Shaft And Planetary Geartrain
Fig. 149 Output Shaft And Planetary Geartrain

1 - SLOTS
2 - LOW-REVERSE DRUM
3 - PLANETARY GEARTRAIN
4 - TRANSMISSION HOUSING
5 - LUGS

(27) Turn and secure transmission so that front opening is upward.

(28) Assemble front and rear clutches together.

(a) Check input shaft seal rings (Fig. 150). Verify that diagonal-cut ends of Teflony seal ring are properly joined and ends of metal ring are correctly hooked together. Also be sure rings are installed in sequence shown.

(b) Align teeth on clutch discs in line.

(c) Insert input shaft on rear clutch into center of front clutch (Fig. 151).

(d) Engage teeth on rear clutch hub into teeth on clutch (Fig. 153). Rotate front clutch retainer bac

Fig. 150 Input Shaft Seal Ring Location
Fig. 150 Input Shaft Seal Ring Location

1 - INPUT SHAFT
2 - TEFLON SEAL RING
3 - METAL SEAL RING
4 - REAR CLUTCH RETAINER

Fig. 151 Front and Rear Clutches
Fig. 151 Front and Rear Clutches

1 - REAR CLUTCH
2 - INPUT SHAFT
3 - FRONT CLUTCH

(29) Install output shaft thrust plate on shaft hub in planetary geartrain driving shell (Fig. 152). Use petroleum jelly to hold thrust plate in place.

(30) Check rear clutch thrust washer. Use additional petroleum jelly to hold washer in place if necessary.

(31) Coat output shaft thrust washer with petroleum jelly. Install washer in rear clutch hub (Fig.

154). Use enough petroleum jelly to hold washer in place. Be sure grooved side of washer faces rearward (toward output shaft) as shown. Also note that washer only fits one way in clutch hub.

Fig. 152 Output Shaft Thrust Plate
Fig. 152 Output Shaft Thrust Plate

1 - OUTPUT SHAFT HUB
2 - OUTPUT SHAFT THRUST PLATE

Fig. 153 Assembling Front And Rear Clutch Units
Fig. 153 Assembling Front And Rear Clutch Units

1 - TURN FRONT CLUTCH BACK & FORTH UNTIL SEATED
2 - REAR CLUTCH ASSEMBLY

(32) Align drive teeth on rear clutch discs with small screwdriver (Fig. 155). This will make installation into front of planetary geartrain easier

Fig. 154 Output Shaft Thrust Washer
Fig. 154 Output Shaft Thrust Washer

1 - REAR CLUTCH HUB
2 - OUTPUT SHAFT THRUST WASHER
3 - OUTPUT SHAFT

Fig. 155 Aligning Rear Clutch Disc Lugs
Fig. 155 Aligning Rear Clutch Disc Lugs

1 - REAR CLUTCH DISCS
2 - USE SMALL SCREWDRIVER TO ALIGN CLUTCH DISC TEETH

(33) Insert front band into opening at front of transmission case (Fig. 156).

(34) Install front and rear clutch units as assembly (Fig. 157). Align rear clutch with front annulus gear and install assembly in driving shell. Be sure output shaft thrust washer and thrust plate are not displaced during installation.

(35) Carefully work assembled clutches back and forth to engage and seat rear clutch discs on front annulus gear. Verify that front clutch drive lugs are fully engaged in slots of driving shell after installation.

Fig. 156 Front Band
Fig. 156 Front Band

1 - FRONT BAND
2 - TRANSMISSION HOUSING

Fig. 157 Installing Front/Rear Clutch
Fig. 157 Installing Front/Rear Clutch

1 - FRONT BAND
2 - FRONT CLUTCH AND DRUM
3 - TRANSMISSION HOUSING
4 - REAR CLUTCH

(36) Engage front band on adjusting screw and hold band in place.

(37) Install strut between band lever and front band (Fig. 158).

(38) Tighten front band adjusting screw until band just grips clutch retainer. Verify that front/rear clutches are still seated before continuing.

(39) Verify that reaction shaft support hub seal rings are hooked together (Fig. 159).

(40) Coat front clutch thrust washer with petroleum jelly to hold it in place. Then install washer over reaction shaft hub and seat it on pump (Fig.

160).

CAUTION: The thrust washer bore (I. D.), is chamfered on one side. Make sure the chamfered side is installed so it faces the pump.

Fig. 158 Front Band Linkage Installation
Fig. 158 Front Band Linkage Installation

1 - BAND LEVER
2 - BAND STRUT
3 - FRONT BAND

Fig. 159 Reaction Shaft Support Seal Rings
Fig. 159 Reaction Shaft Support Seal Rings

1 - REACTION SHAFT SUPPORT HUB
2 - FRONT CLUTCH THRUST WASHER
3 - SEAL RINGS

Fig. 160 Front Clutch Thrust Washer Installation
Fig. 160 Front Clutch Thrust Washer Installation

1 - THRUST WASHER
2 - CHAMFERED SIDE OF WASHER BORE GOES TOWARD PUMP

(41) Thread two Pilot Stud Tools C-3288-B into bolt holes in oil pump flange (Fig. 161).

(42) Align and install oil pump gasket (Fig. 161).

(43) Lubricate oil pump seals with Mopart Door- Ease, or Ru-Glyde, Door Eze, or ATF Plus 3.

(44) Install oil pump (Fig. 162). Align and position pump on pilot studs. Slide pump down studs and work it into front clutch hub and case by hand. Then install two or three pump bolts to hold pump in place.

(45) Remove pilot stud tools and install remaining oil pump bolts. Tighten bolts alternately in diagonal pattern to 20 N·m (15 ft. lbs.).

Fig. 161 Installing Pilot Studs And Oil Pump Gasket
Fig. 161 Installing Pilot Studs And Oil Pump Gasket

1 - OIL PUMP GASKET
2 - PILOT STUD TOOLS C-3288-B

Fig. 162 Installing Oil Pump And Reaction Shaft Support
Fig. 162 Installing Oil Pump And Reaction Shaft Support

1 - OIL PUMP
2 - PILOT STUD TOOL
3 - PILOT STUD TOOL

(46) Measure input shaft end play (Fig. 163).

NOTE: If end play is incorrect, transmission is incorrectly assembled, or output shaft thrust washer and/or thrust plate are worn and need to be changed.

(a) Attach Adapter 8266-7 to Handle 8266-8.

(b) Attach dial indicator C-3339 to Handle 8266-8.

(c) Install the assembled tool onto the input shaft of the transmission and tighten the retaining screw on Adapter 8266-7 to secure it to the input shaft.

(d) Position the dial indicator plunger against a flat spot on the oil pump and zero the dial indicator.

(e) Move input shaft in and out and record reading.

End play should be 0.56 - 2.31 mm (0.022 - 0.091 in.).

(47) Position transmission on work surface with pan face upward.

(48) Install valve body.

(49) Adjust front and rear bands.

(50) Install fluid filter and pan.

(51) Install rear extension housing.

(52) Install torque converter.

Fig. 163 Checking Input Shaft End Play
Fig. 163 Checking Input Shaft End Play

1 - TOOL 8266-8
2 - TOOL 8266-7
3 - TOOL C-3339

    More about «Disassembly and assembly»:

    Governor and park gear

    Valve body

    Transmission

    Overrunning clutch/low-reverse drum

    Front servo piston

    Rear servo piston

    Oil pump and reaction shaft support

    Front clutch

    Rear clutch

    Planetary geartrain/output shaft

    Jeep Cherokee Service Manual / Transmission and transfer case / Automatic transmission-30RH / Disassembly and assembly / Transmission

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