Part 1

A750F AUTOMATIC TRANSMISSION: AUTOMATIC TRANSMISSION UNIT: DISASSEMBLY

DISASSEMBLY

1. REMOVE TRANSMISSION CONTROL SHAFT LEVER LH

(a) Remove the nut, washer and control shaft lever LH.
2. REMOVE PARK/NEUTRAL POSITION SWITCH ASSEMBLY

(a) Using a screwdriver, pry out the lock washer.
(b) Remove the nut, lock washer and bolt.
(c) Remove the park/neutral position switch.
3. REMOVE OIL COOLER TUBE UNION

(a) Remove the 2 oil cooler tube unions.
(b) Remove the O-ring from the oil cooler tube union.
4. REMOVE SPEED SENSOR

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

(a) Remove the 2bolts.
(b) Remove the breather tube.
(c) Remove the O-ring from each tube.
6. REMOVE AUTOMATIC TRANSMISSION HOUSING

(a) Remove the 10 bolts.
(b) Remove the transmission housing.
7. REMOVE TRANSMISSION CASE ADAPTER SUB-ASSEMBLY
(a) Remove the 8 bolts.
(b) Remove the transmission case adapter assembly.
HINT: Use a brass bar and a hammer to remove the extension housing assembly.

(a) Using a screwdriver, pry out the oil seal.
9. FIX AUTOMATIC TRANSMISSION CASE SUB-ASSEMBLY

(a) Install the transmission case on the overhaul attachment.
10. REMOVE AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY
NOTE:
Do not turn the transmission over as this will contaminate the valve body with foreign matter on the bottom of the pan.

(a) Remove the drain plug and 20 bolts.
11. INSPECT AUTOMATIC TRANSMISSION OIL PAN SUB-ASSEMBLY Transmission Unit
12. REMOVE VALVE BODY OIL STRAINER ASSEMBLY

(a) Turn over the transmission.
(b) Remove the 4 bolts holding the valve body oil strainer assembly to the valve body.
(c) Remove the O-ring form the valve body oil strainer assembly.
13. REMOVE TRANSMISSION WIRE

(a) Remove the ATF temperature sensor.
(b) Remove the bolt and clamp.
(c) Disconnect the 7 connectors from the shift solenoid valves.

(d) Remove the bolt from the case.
(e) Pull the transmission wire out of the transmission case.
(f) Remove the O-ring from the transmission wire.
14. REMOVE TRANSMISSION VALVE BODY ASSEMBLY

(a) Remove the 19 bolts.
(b) Remove the valve body assembly.
15. REMOVE TRANSAXLE CASE GASKET

(a) Remove the 3 transaxle case gaskets.
16. REMOVE BRAKE DRUM GASKET

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

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

(a) Applying compressed air to the oil hole, and remove the C2 accumulator piston and spring.
(b) Remove the 2 O-rings from the piston.
NOTE:
Be careful as the C-3 and B-3 accumulator piston may jump out.

19. REMOVE B-3 ACCUMULATOR PISTON

(a) Applying compressed air to the oil hole, and remove the B3 accumulator piston and spring.
(b) Remove the 2 O-rings from the piston.
NOTE:
Be careful as the C-3 accumulator piston may jump out.

20. REMOVE C-3 ACCUMULATOR PISTON

(a) Applying compressed air to the oil hole, and remove the C3 accumulator piston and 2 spring.
(b) Remove the 2 O-rings from the piston.
21. REMOVE C-1 ACCUMULATOR VALVE

(a) Remove the C-1 accumulator valve and 2 springs.
22. REMOVE PARKING LOCK PAWL BRACKET

(a) Remove the 3 bolts and parking lock pawl bracket.
23. REMOVE PARKING LOCK ROD SUB-ASSEMBLY

(a) Disconnect the parking lock rod from the manual valve lever.
24. REMOVE PARKING LOCK PAWL SHAFT

(a) Pull out the parking lock pawl shaft from the front side, and then remove the lock pawl and spring.
(b) Remove the E-ring from the shaft.
25. 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, tap 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.
26. REMOVE MANUAL VALVE LEVER SHAFT OIL SEAL

(a) Using a screwdriver, remove the 2 oil seals.
27. REMOVE OIL PUMP ASSEMBLY

(a) Remove the 10 bolts holding the oil pump from the transmission case.

(b) Using SST, remove the oil pump.
SST: 09350-30020
09350-07020

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

(b) Remove the clutch drum thrust washer and thrust needle roller bearing.
29. INSPECT NO. 2 ONE-WAY CLUTCH ASSEMBLY Transmission Unit
30. REMOVE NO. 2 ONE-WAY CLUTCH ASSEMBLY

(a) Remove the No. 2 one-way clutch assembly and No. 2 clutch drum thrust washer from the clutch drum and input shaft assembly.
31. REMOVE NO. 3 BRAKE SNAP RING

(a) Using a screwdriver, remove the No. 3 brake snap ring from the case.
32. REMOVE NO. 3 BRAKE DISC

(a) Remove the flange and cushion plate the 4 discs and the 4 plates from the case.
33. INSPECT NO. 3 BRAKE DISC Transmission Unit
34. REMOVE 2ND BRAKE PISTON HOLE SNAP RING

(a) Using SST, remove the snap ring.
SST: 09350-30020
09350-07060
35. REMOVE ONE-WAY CLUTCH ASSEMBLY