Automatic Transmission Unit: Disassembly
- Removal of refill plug
- Remove the refill plug.
- Remove the O-ring from the refill plug.
- Removal of transmission control shaft lever RH
- Removal of neutral start switch ASSY
- Use a flat tip screwdriver to bend the tab of the lock washer.
- Remove the nut and lock washer.
- Remove the bolt and neutral start switch ASSY from the automatic transmission case SUB-ASSY.NOTE: Be sure to keep the manual valve lever shaft from rotating before installation of the neutral start switch ASSY so as to prevent the detent spring from being detached from the manual valve lever shaft.
- Removal of oil cooler tube union
- Removal of transmission revolution sensor
- Removal of automatic transmission breather tube
- Removal of automatic transmission case plug
- Remove 5 automatic transmission case plugs from the automatic transmission case SUB-ASSY.
- Remove 5 O-rings from the 5 automatic transmission case plugs.
- Remove the automatic transmission case plug from the automatic transmission case SUB-ASSY using a TORX socket wrench T55.
- Remove the O-ring from the automatic transmission case plug.
- Removal of automatic transmission housing
- Removal of extension housing dust deflector
- Removal of extension housing SUB-ASSY
- Remove the 6 bolts.
- Use a flat tip screwdriver to remove the extension housing SUB-ASSY from the automatic transmission case SUB-ASSY.CAUTION: Be careful not to scratch the mating surface of the extension housing SUB-ASSY and the automatic transmission case SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the 6 bolts.
- Removal of transmission case adapter radial ball bearing
- Removal of automatic transmission extension housing oil seal
- Removal of output shaft thrust bearing
- Remove the snap ring from the output shaft of the rear planetary gear ASSY.
- Remove the rear output shaft thrust bearing race, output shaft thrust bearing, and output shaft thrust bearing race.
- Removal of automatic transmission oil pan SUB-ASSYCAUTION: Be careful not to turn the transmission to prevent the valve body from becoming dirty with foreign substances accumulating at the bottom of the oil pan.
- Use a 5-mm {0.2-in} socket hexagon wrench to remove the overflow plug and gasket.
- Remove the drain plug and the gasket.
- Remove 20 bolts to remove the automatic transmission oil pan SUB-ASSY and automatic transmission oil pan gasket.
- Remove 3 transmission oil cleaner magnets from the automatic transmission oil pan SUB-ASSY.
- Check the particles in the automatic transmission oil pan SUB-ASSY.
- If metallic fragments are found, collect them using the removed transmission oil cleaner magnets. Carefully inspect foreign substances or particles in the automatic transmission oil pan SUB-ASSY and on the transmission oil cleaner magnets to check for normal wear at the automatic transmission ASSY.
Steel (magnetic): worn bearing, gear, and clutch plate Brass (non-magnetic): worn bushing
- If metallic fragments are found, collect them using the removed transmission oil cleaner magnets. Carefully inspect foreign substances or particles in the automatic transmission oil pan SUB-ASSY and on the transmission oil cleaner magnets to check for normal wear at the automatic transmission ASSY.
- Removal of valve body oil strainer ASSY
- Removal of transmission wire
- Remove the bolt and hydraulic pressure sensor clamp, then disconnect the ATF hydraulic pressure sensor.
- Remove the bolt to remove the clamp from the valve body ASSY.
- Disconnect the wiring harness from the clamp.
- Disconnect the 9 solenoid valve connectors.NOTE: Use a thin-tipped flat tip screwdriver for the connector indicated by the white arrow to disconnect the control solenoid connector.
- Remove the bolt, then pull out the transmission wire.
- Remove the O-ring from the transmission wire.
- Remove the bolt and hydraulic pressure sensor clamp, then disconnect the ATF hydraulic pressure sensor.
- Removal of transmission valve body ASSY
- Removal of transmission case gasket
- Removal of brake drum gasket
- Removal of check ball body
- Removal of C-2 accumulator piston
- Blow compressed air into the oil hole and remove the C-2 accumulator piston and spring from the automatic transmission case SUB-ASSY.CAUTION: Be careful as the C-3 and B-3 accumulator pistons may jump out.
- Remove 2 O-rings from the C-2 accumulator piston.
- Use a flat tip screwdriver to remove the snap ring and spring SUB-ASSY from the C-2 accumulator piston.CAUTION: Be careful not to damage the C-2 accumulator piston.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Blow compressed air into the oil hole and remove the C-2 accumulator piston and spring from the automatic transmission case SUB-ASSY.
- Removal of B-3 accumulator piston
- Blow compressed air into the oil hole to remove the B-3 accumulator piston and spring from the automatic transmission case SUB-ASSY.CAUTION: Be careful as the C-3 accumulator piston may jump out.
- Remove 2 O-rings from the B-3 accumulator piston.
- Use a flat tip screwdriver to remove the snap ring and spring SUB-ASSY from the B-3 accumulator piston.CAUTION: Be careful not to damage the B-3 accumulator piston.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Blow compressed air into the oil hole to remove the B-3 accumulator piston and spring from the automatic transmission case SUB-ASSY.
- Removal of C-3 accumulator piston
- Removal of B-1 accumulator valve
- Removal of parking lock pole bracket
- Removal of parking lock rod SUB-ASSY
- Removal of parking lock pole shaft
- Removal of manual valve lever SUB-ASSY
- Use a flat tip screwdriver and a hammer to disconnect the spacer and remove it from the manual valve lever shaft.CAUTION: Be careful not to damage the manual valve lever shaft.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Use a 3-mm pin punch and hammer to pull out the spring pin.NOTE: Pull out the spring pin slowly to prevent it from dropping in the automatic transmission case SUB-ASSY.
- Pull out the manual valve lever shaft from the case and remove the manual valve lever SUB-ASSY.
- Use a flat tip screwdriver and a hammer to disconnect the spacer and remove it from the manual valve lever shaft.
- Removal of manual valve lever shaft oil seal
- Setting of automatic transmission case SUB-ASSY
- Removal of oil pump ASSY
- Remove the 9 bolts.
- Use a flat tip screwdriver to remove the oil pump ASSY from the automatic transmission case SUB-ASSY.CAUTION: Be careful not to damage the oil pump ASSY and automatic transmission case SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove No. 1 thrust bearing race from the oil pump ASSY.
- Remove the O-ring from the oil pump ASSY.
- Remove the 3 oil seal rings from the oil pump.
- Use the SST to remove the oil seal from the oil pump.
SST 398527700
- Remove the 9 bolts.
- Removal of clutch drum & input shaft ASSY
- Removal of No. 2 one-way clutch ASSY
- Support clutch drum & input shaft ASSY
- Removal of reverse clutch hub SUB-ASSY
- Use a flat tip screwdriver to remove the snap ring from the reverse clutch piston SUB-ASSY.CAUTION: Be careful not to damage the reverse clutch piston SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the reverse clutch hub SUB-ASSY from the reverse clutch drum SUB-ASSY.
- Use a flat tip screwdriver to remove the snap ring from the reverse clutch piston SUB-ASSY.
- Removal of reverse clutch reaction sleeve
- Removal of No. 3 clutch disc
- Removal of forward clutch hub SUB-ASSY
- Removal of coast clutch hub SUB-ASSY
- Removal of No. 4 one-way clutch ASSY
- Removal of No. 1 clutch disc (forward clutch disc)
- Use a flat tip screwdriver to remove the snap ring.CAUTION: Be careful not to damage the input shaft.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the forward clutch flange, 4 No. 1 clutch discs, 4 No. 1 clutch plates, and clutch cushion plate from the input shaft.
- Use a flat tip screwdriver to remove the snap ring.
- Removal of No. 4 clutch disc (coast clutch disc)
- Use a flat tip screwdriver to remove the snap ring.CAUTION: Be careful not to damage the forward clutch piston SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the coast clutch flange, 4 No. 4 clutch discs, 4 No. 4 clutch plates from the forward clutch piston SUB-ASSY.
- Use a flat tip screwdriver to remove the snap ring.
- Removal of input shaft
- Removal of clutch drum oil seal ring
- Removal of No. 1 clutch balancer
- Removal of forward clutch piston SUB-ASSY
- Removal of reverse clutch flange
- Removal of No. 2 clutch disc (direct clutch disc)
- Use a flat tip screwdriver to remove the 2 snap rings from the reverse clutch drum SUB-ASSY.CAUTION: Be careful not to damage the reverse clutch drum SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the direct clutch flange, 5 No. 2 clutch discs, 5 No. 2 clutch plates from the reverse clutch drum SUB-ASSY.
- Use a flat tip screwdriver to remove the 2 snap rings from the reverse clutch drum SUB-ASSY.
- Removal of No. 3 clutch balancer
- Removal of reverse clutch return spring SUB-ASSY
- Removal of reverse clutch piston SUB-ASSY
- Removal of direct clutch piston SUB-ASSY
- Place the SST on the No. 2 clutch balancer and press the direct clutch return spring SUB-ASSY using a press.
SST 09320-89010
- Remove the snap ring.
- Remove the No. 2 clutch balancer and direct clutch return spring SUB-ASSY.
- Remove the O-ring from the No. 2 clutch balancer.
- Use 2 flat tip screwdrivers to remove the direct clutch piston SUB-ASSY from the reverse clutch drum SUB-ASSY.CAUTION: Be careful not to damage the direct clutch piston SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove 2 O-rings from the direct clutch piston SUB-ASSY.
- Place the SST on the No. 2 clutch balancer and press the direct clutch return spring SUB-ASSY using a press.
- Removal of No. 3 brake disc
- Use a flat tip screwdriver to remove the snap ring from the automatic transmission case SUB-ASSY.CAUTION: Be careful not to damage the automatic transmission case SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the No. 3 brake flange, 3 No. 3 brake discs, and 3 No. 3 brake plates from the automatic transmission case SUB-ASSY.
- Use a flat tip screwdriver to remove the snap ring from the automatic transmission case SUB-ASSY.
- Removal of No. 3 brake cylinder
- Removal of No. 3 brake piston
- Use a flat tip screwdriver and press to remove the snap ring and No. 3 brake piston return spring SUB-ASSY from the No. 3 brake cylinder.
SST 18762AA030
CAUTION:- Be careful not to damage the No. 3 brake cylinder.
- Keep the foot of SST from standing on the protrusion of the piston return spring SUB-ASSY.
NOTE: Wrap the tip of a flat tip screwdriver with tape before using it. - Hold the No. 3 second brake piston and blow compressed air (392 kPa {4.0 kgf/cm2
, 57 psi}) to the No. 3 brake cylinder, then remove the No. 3 brake piston.
- Remove 2 O-rings from the No. 3 brake piston.
- Use a flat tip screwdriver and press to remove the snap ring and No. 3 brake piston return spring SUB-ASSY from the No. 3 brake cylinder.
- Removal of one-way clutch ASSY
- Removal of front planetary gear ASSY
- Remove the front planetary gear ASSY and one-way clutch inner race SUB-ASSY from the automatic transmission case SUB-ASSY.
- Remove the front planetary flange rear thrust bearing race, front planetary flange thrust needle roller bearing, and No. 2 planetary carrier thrust washer from the automatic transmission case SUB-ASSY.
- Remove the front planetary gear ASSY and one-way clutch inner race SUB-ASSY from the automatic transmission case SUB-ASSY.
- Removal of front planetary ring gear
- Removal of center planetary ring gear
- Use a flat tip screwdriver to remove the snap ring.CAUTION: Be careful not to damage the front planetary ring gear.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the center planetary ring gear from the front planetary ring gear.
- Use a flat tip screwdriver to remove the snap ring.CAUTION: Be careful not to damage the center planetary ring gear.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the front planetary ring gear flange SUB-ASSY from the center planetary ring gear.
- Use a flat tip screwdriver to remove the snap ring.
- Removal of No. 1 brake disc
- Removal of brake piston return spring SUB-ASSY
- Use a flat tip screwdriver to remove the snap ring from the automatic transmission case SUB-ASSY.CAUTION: Be careful not to damage the automatic transmission case SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove the brake piston return spring SUB-ASSY and No. 1 brake cylinder from the automatic transmission case SUB-ASSY.
- Use a flat tip screwdriver to remove the snap ring from the automatic transmission case SUB-ASSY.
- Removal of No. 1 brake piston
- Hold the No. 1 brake piston and blow compressed air (392 kPa {4.0 kgf/cm2
, 57 psi}) to the No. 1 brake cylinder, then remove the No. 1 brake piston.NOTE: If the piston does not jump out by compressed air, use needle nose pliers to pick the piston up and take it out.
- Remove 2 O-rings from the No. 1 brake piston.
- Hold the No. 1 brake piston and blow compressed air (392 kPa {4.0 kgf/cm2
, 57 psi}) to the No. 1 brake cylinder, then remove the No. 1 brake piston.
- Removal of No. 2 brake disc
- Use a flat tip screwdriver to remove the snap ring from the automatic transmission case SUB-ASSY.CAUTION: Be careful not to damage the automatic transmission case SUB-ASSY.NOTE: Wrap the tip of a flat tip screwdriver with tape before using it.
- Remove 2 No. 2 brake flanges, 4 No. 2 brake discs, 3 No. 2 brake plates, and No. 2 brake piston return spring SUB-ASSY from the automatic transmission case SUB-ASSY.
- Use a flat tip screwdriver to remove the snap ring from the automatic transmission case SUB-ASSY.
- Removal of No. 2 brake piston
- Hold the No. 2 brake piston and blow compressed air (392 kPa {4.0 kgf/cm2
, 57 psi}) to the transmission case, then remove the No. 2 brake piston and No. 2 brake cylinder.NOTE: If the piston does not jump out by compressed air, use needle nose pliers to pick the piston up and take it out.
- Remove the No. 2 brake piston from the No. 2 brake cylinder.
- Remove the two O-rings from the No. 2 brake piston.
- Hold the No. 2 brake piston and blow compressed air (392 kPa {4.0 kgf/cm2
, 57 psi}) to the transmission case, then remove the No. 2 brake piston and No. 2 brake cylinder.
- Removal of center planetary gear ASSY
- Removal of intermediate shaft
- Removal of No. 3 one-way clutch ASSY
- Removal of rear planetary ring gear flange SUB-ASSY
- Removal of brake plate stopper spring
- Removal of No. 4 brake disc
- Removal of rear planetary gear ASSY
- Removal of 1st & reverse brake return spring SUB-ASSY
- Removal of brake apply tube
- Removal of 1st & reverse brake piston
- Hold the 1st & reverse brake piston and blow compressed air (392 kPa {4.0 kgf/cm2
, 57 psi}) to the transmission case, then remove the 1st & reverse brake piston.NOTE: If the piston does not jump out by compressed air, use needle nose pliers to pick the piston up and take it out.
- Remove the O-ring from the 1st & reverse brake piston.
- Hold the 1st & reverse brake piston and blow compressed air (392 kPa {4.0 kgf/cm2
, 57 psi}) to the transmission case, then remove the 1st & reverse brake piston.
- Removal of brake reaction sleeve
- Removal of No. 4 brake piston