Rear Planetary Gear

COMPONENTS

DISASSEMBLY





1. REMOVE REAR PLANETARY SUN GEAR





2. REMOVE REAR PLANETARY RING GEAR FLANGE
a. Using a screwdriver, remove the snap ring.





b. Remove the rear planetary ring gear flange from the rear planetary ring gear.

INSPECTION





1. MEASURE PLANETARY PINION GEAR THRUST CLEARANCE
Using a feeler gauge, measure the planetary pinion gear thrust clearance.

Standard clearance: 0.2-0.6 mm (0.008- 0.024 in.) Maximum clearance: 1.0 mm (0.039 in.)

If the clearance is greater than the maximum, replace the planetary gear assembly.





2. CHECK REAR PLANETARY RING GEAR BUSHING
Using a dial indicator, measure the inside diameter of the rear planetary ring gear bushing.

Maximum inside diameter: 38.56 mm (1.518 in.)

If the inside diameter is greater than the maximum, replace the rear planetary ring gear.





3. CHECK OUTPUT SHAFT BUSHING
Using a dial indicator, measure the inside diameter of the output shaft bushing.

Maximum inside diameter: 20.08 mm (0.791 in.)

If the inside diameter is greater than the maximum, replace the output shaft.





4. CHECK OPERATION ONE-WAY CLUTCH
a. Install the No.2 one-way clutch to rear planetary ring gear.
b. Hold the rear planetary ring gear and turn the one-way clutch.
c. The one-way clutch turns freely clockwise and locks counterclockwise.
d. Remove the No.2 one-way clutch from rear planetary ring gear.

REASSEMBLY





1. INSTALL RING GEAR FLANGE
a. Install the ring gear flange to the rear planetary ring gear.
b. Using a screwdriver, install the snap ring.





2. INSTALL REAR PLANETARY SUN GEAR

NOTICE: Be sure the end gap of the snap ring is not aligned with the cutout portion of the case.

6. CHECK PACK OPERATION OF 1ST & REVERSE BRAKE






a. Make sure the 1st & reverse brake pistons move smoothly when applying and releasing the compressed air (392 kPa, 4 kgf/cm2, 57 psi) into the transmission case.





b. Using feeler gauge, measure 1st & reverse brake pack clearance between the snap ring and the flange.

Pack clearance: 0.50 0.80 mm (0.020-0.031 in.)

If the piston stroke is less than limit of piston stroke, parts may have been assembled incorrectly, so check and reassemble again. If the stroke is non-standard, select another plate.





HINT: There are 13 different plates in thickness for the bottom plate. For the other plates, the thickness is 1.8 mm (0.071 in.).