Disassembly and Reassembly

DISASSEMBLY





1. MOUNT MOTOR HOUSING
Slightly mount the motor housing in a vise.

NOTICE: Be careful not to damage the motor housing.

2. REMOVE MOTOR COVER
a. Remove the 4 bolts and motor cover.
b. Remove the O-ring from the motor housing.





3. REMOVE REAR THRUST WASHER
4. REMOVE DRIVE SHAFT





5. REMOVE DRIVE AND DRIVEN ROTORS
6. REMOVE FRONT THRUST WASHER


INSPECTION





1. INSPECT DRIVE AND DRIVEN ROTORS
a. Install the drive and driven rotors to the motor housing with the dot mark facing upward.





b. Using a feeler gauge and precision straight edge, measure the side clearance between the rotor and precision straight edge.

Standard side clearance: 0.01 - 0.04 mm (0.0004 - 0.0016 inch)
Maximum side clearance: 0.05 mm (0.0020 inch)

If the clearance is greater than maximum, replace the rotors as a set. If necessary, replace the motor assembly.





HINT: When replacing the rotors, select a new rotor set according to the imprinted mark on the motor housing.





2. INSPECT OIL CLEARANCE OF DRIVE SHAFT





a. Using a caliper gauge, measure the shaft hole inside diameter of the housing and cover.

Shaft hole inside diameter: 14.000 - 14.011 mm (0.5512 - 0.5516 inch)

b. Using a micrometer, measure the drive shaft diameter.

Shaft diameter: 13.973 - 13.984 mm (0.5501 - 0.5506 inch)

c. Subtract the drive shaft diameter measurement from the shaft hole diameter measurement.

Standard clearance: 0.016 - 0.038 mm (0.0006 - 0.0015 inch)
Maximum clearance: 0.04 mm (0.0016 inch)

If the clearance is greater than maximum, replace the shaft. If necessary, replace the motor assembly.

REPLACEMENT





1. REMOVE OIL SEAL
a. Using snap ring pliers, remove the snap ring and plate washer.





b. Using a screwdriver, pry out the oil seal.

NOTICE: Be careful not to damage the housing.





2. INSTALL OIL SEAL
a. Using Special Service Tool (SST) and a hammer, tap in a new oil seal to a depth of 4.5 - 5.5 mm (0.177 - 0.217 inch) from the housing edge.
SST 09950 - 60010 (09951-00280) 09950-70010 (09951 -07100)
b. Using snap ring pliers, install the plate washer and snap ring.
c. Apply fluid to the oil seal lip.


REASSEMBLY

HINT:
- Thoroughly clean all parts to be assembled.
- Before installing the parts, apply new fluid to all sliding and rotating surfaces.
1. MOUNT MOTOR HOUSING
Slightly mount the motor housing in a vise.

NOTICE: Be careful not to damage the motor housing.





2. INSTALL FRONT THRUST WASHER
3. INSTALL DRIVEN AND DRIVE ROTORS
Install the drive and driven rotors with the dot mark facing upward.





4. INSTALL DRIVE SHAFT
5. INSTALL REAR THRUST WASHER





6. INSTALL MOTOR COVER
a. Install a new O-ring to the motor housing groove.
b. Install the motor cover with the 4 bolts.

Torque: 28 Nm (21 ft. lbs.)





7. INSPECT DRIVE SHAFT PRELOAD
a. Check that the drive shaft rotates smoothly without abnormal noise.
b. Temporarily install the pulley nut, and check the rotating torque.

Rotating torque: 0.3 Nm (2.7 inch lbs.)