Part 1

A761E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION UNIT: DISASSEMBLY

1. REMOVE TRANSMISSION CASE COVER UPPER

(a) Remove the 2 bolts and transmission case cover.

2. REMOVE TRANSMISSION CONTROL SHAFT LEVER RH

(a) Remove the nut and transmission control shaft lever.

3. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Using a screwdriver, unstake the lock washer.

(b) Remove the nut and lock washer.

(c) Remove the bolt and park/neutral position switch.

4. REMOVE OIL COOLER TUBE UNION

(a) Remove the 2 oil cooler tube unions.

(b) Remove the O-rings from the unions.

5. REMOVE TRANSMISSION REVOLUTION SENSOR

(a) Remove the 2 bolts and 2 sensors.

(b) Remove the O-ring from each sensor.

6. REMOVE AUTOMATIC TRANSMISSION BREATHER TUBE

(a) Remove the 2 bolts and breather tube.

7. REMOVE AUTOMATIC TRANSMISSION HOUSING

(a) Remove the 10 bolts.

(b) Remove the transmission housing.

8. REMOVE AUTOMATIC TRANSMISSION FLANGE YOKE ASSEMBLY

(a) Using SST and a hammer, loosen the staked part of the nut.

SST : 09930-00010

(b) Using SST and a 30 mm socket wrench, remove the nut.

SST : 09330-00021

SST : 09950-30012

09955-03040

(c) Remove SST.

(d) Tap the output flange with a plastic-faced hammer to remove it.

(e) Remove the oil seal from the flange yoke.

9. REMOVE EXTENSION HOUSING SUB-ASSEMBLY

(a) Remove the 6 bolts.

(b) Using a screwdriver, pry out the extension housing.

(d) Remove the thrust needle roller bearing and the 2 bearing races.

10. REMOVE REAR COVER SLEEVE

(a) Remove the 2 washers and cover sleeve.

11. REMOVE TRANSMISSION CASE ADAPTER RADIAL BALL BEARING

(a) Remove the transmission case adaptor radial ball bearing from the extension housing.

12. REMOVE AUTOMATIC TRANSMISSION EXTENSION HOUSING OIL SEAL

(a) Using a screwdriver, pry out the oil seal.

13. FIX AUTOMATIC TRANSMISSION CASE SUB-ASSEMBLY

(a) Install the transmission case on the overhaul attachment.

14. REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY

NOTICE:
Do not turn the transmission over as this will contaminate the valve body with foreign matter located at the bottom of the pan.

(a) Remove the overflow plug and gasket.

(b) Remove the drain plug and gasket.

(c) Remove the 20 bolts, oil pan and gasket.

(d) Examine the particles in the pan.

(1) Remove the magnets from the oil pan. Use the removed magnets to collect any steel chips. Look carefully at the chips and particles in the pan and on the magnet to anticipate the type of wear which might be found in the transmission.

Steel (magnetic): bearing, gear and plate wear

Brass (non-magnetic): bush wear

15. REMOVE VALVE BODY OIL STRAINER ASSEMBLY

(a) Turn over the transmission.

(b) Remove the 4 bolts and valve body oil strainer from the valve body.

(c) Remove the O-ring from the valve body oil strainer.

16. REMOVE TRANSMISSION WIRE

(a) Remove the bolt, lock plate and ATF temperature sensor.

(b) Remove the 2 bolts and disconnect the 2 clamps.

(d) Disconnect the transmission wire connector.

(e) Remove the bolt and pull out the transmission wire.

(f) Remove the O-ring from the transmission wire.

17. REMOVE TRANSMISSION VALVE BODY ASSEMBLY

(a) Remove the bolt, detent spring cover and detent spring.

(b) Remove the 20 bolts.

19. REMOVE BRAKE DRUM GASKET

(a) Remove the 3 brake drum gaskets.

20. REMOVE CHECK BALL BODY

(a) Remove the check ball body and spring.

21. REMOVE C-2 ACCUMULATOR PISTON

(a) While blowing compressed air into the oil hole, remove the C-2 accumulator piston and spring.

(b) Remove the 2 O-rings from the piston.

NOTICE:
The C-3 and B-3 accumulator pistons may jump out.

22. REMOVE B-3 ACCUMULATOR PISTON

(a) While blowing compressed air into the oil hole, remove the B-3 accumulator piston and spring.

(b) Remove the 2 O-rings from the piston.

NOTICE:
The C-3 accumulator piston may jump out.

23. REMOVE C-3 ACCUMULATOR PISTON

(a) While blowing compressed air into the oil hole, remove the C-3 accumulator piston and 2 springs.

(b) Remove the 2 O-rings from the piston.

24. REMOVE B-1 ACCUMULATOR VALVE

(a) Remove the B-1 accumulator valve and 2 springs.

25. REMOVE PARKING LOCK PAWL BRACKET

(a) Remove the 3 bolts and parking lock pawl bracket.

26. REMOVE PARKING LOCK ROD SUB-ASSEMBLY

(a) Disconnect the parking lock rod from the manual valve lever.

27. REMOVE PARKING LOCK PAWL SHAFT

(a) Pull out the parking lock pawl shaft from the front side, then remove the lock pawl and spring.

(b) Remove the E-ring from the shaft.

28. REMOVE MANUAL VALVE LEVER SUB-ASSEMBLY

(a) Using a hammer and screwdriver, cut off the spacer and remove it from the shaft.

(b) Using a pin punch and hammer, drive out the spring pin.

HINT
Slowly drive out the spring pin so that it does not fall into the transmission case.

(c) Pull the manual valve lever shaft out through the case, and remove the manual valve lever.

29. REMOVE MANUAL VALVE LEVER SHAFT OIL SEAL

(a) Using a screwdriver, pry out the 2 oil seals.

30. REMOVE OIL PUMP ASSEMBLY

(a) Remove the 10 bolts from the transmission case.

(b) Using a screwdriver with its tip wrapped with tape, pull out the oil pump.

NOTICE:
Do not damage the oil pump.

(c) Remove the thrust bearing race from the oil pump.

(d) Remove the O-ring from the oil pump.

31. REMOVE CLUTCH DRUM AND INPUT SHAFT

(a) Remove the clutch drum and input shaft from the transmission case.

(b) Remove the clutch drum thrust washer, 2 thrust needle roller bearings and bearing race.

32. INSPECT NO. 2 1-WAY CLUTCH ASSEMBLY Transmission Unit

33. REMOVE NO. 2 1-WAY CLUTCH ASSEMBLY

(a) Remove the 1-way clutch and clutch drum thrust washer from the clutch drum and input shaft.

34. REMOVE NO. 3 BRAKE SNAP RING

(a) Using a screwdriver, remove the brake snap ring from the transmission case.