Part 1

A760E AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION UNIT: DISASSEMBLY

Part 1 of 2

1. REMOVE TRANSMISSION CASE COVER

(a) Remove the 2 bolts and transmission case cover.
2. REMOVE TRANSMISSION CONTROL SHAFT LEVER RH

(a) Remove the nut, spring washer and transmission control shaft lever RH.
3. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Using a screwdriver, bend the tabs of the lock washer.
(b) Remove the nut and lock washer.
(c) Remove the bolt and park/neutral position switch.
4. REMOVE TRANSMISSION OIL COOLER

(a) Remove the 3 bolts, transmission oil cooler, and spacer.

(b) Remove the 2 O-rings from the transmission oil cooler.
(c) Remove the 2 O-rings from the spacer.
5. REMOVE SPEED SENSOR

(a) Remove the 2 bolts and the 2 speed sensors.
(b) Remove the O-ring from each sensor.
6. REMOVE AUTOMATIC TRANSMISSION BREATHER TUBE

(a) Remove the 2 bolts.
(b) Remove the 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 a hammer and chisel, loosen the staked part of the nut.
(b) Remove the nut and flange yoke.

(a) Remove the 6 bolts.

(b) Using a screwdriver, remove the extension housing sub-assembly.

(c) Using a snap ring expander, remove the snap ring.
(d) Remove the thrust needle roller bearing and the 2 bearing races.
10. REMOVE REAR COVER SLEEVE

(a) Remove the 2 washers and rear cover sleeve.
11. REMOVE TRANSMISSION CASE ADAPTOR RADIAL BALL BEARING

(a) Remove the transmission case adaptor radial ball bearing from the extension housing sub-assembly.
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 the gasket.
(b) Remove the drain plug and the gasket.

(d) Examine particles in the pan.
(1) Remove the magnets from the oil pan. Use the removed magnets to collect any steel chips. Look carefully for 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 assembly from the valve body.

(a) Remove the bolt and disconnect the ATF temperature sensor.

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

(d) Remove the bolt from the transmission case.
(e) Pull the transmission wire out of the transmission case.

(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.
(c) Remove the valve body assembly.
18. REMOVE TRANSMISSION CASE GASKET

(a) Remove the 3 transmission case gaskets.
19. REMOVE BRAKE DRUM GASKET

(a) Remove the 3 brake drum gaskets.
20. REMOVE CHECK BALL BODY

(a) Remove the check ball body and the spring.
21. REMOVE C-2 ACCUMULATOR PISTON

(a) While blowing compressed air into the oil hole, remove the C-2 accumulator piston and the spring.
(b) Remove the 2 O-rings from the piston.
NOTICE:
Take care as 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 the spring.
(b) Remove the 2 O-rings from the piston.
NOTICE:
Take care as 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 the 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 the 2 springs.
25. REMOVE PARKING LOCK PAWL BRACKET

(a) Remove the 3 bolts and the 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 the spring.
(b) Remove the E-ring from the shaft.
28. REMOVE MANUAL VALVE LEVER SUB-ASSEMBLY

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

(b) Using a pin punch and a 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 No. 1 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 ONE WAY CLUTCH ASSEMBLY Transmission Unit

33. REMOVE NO. 2 ONE WAY CLUTCH ASSEMBLY

(a) Remove the No. 2 one way clutch assembly 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 No. 3 brake snap ring from the transmission case.

Continued in Part 2 Part 2