Toyota Tundra. Manual — part 1089

If the result is not as specified, replace the rotor assembly.

c. Check that the slip rings are not rough or scored. If rough or scored, replace the rotor assembly.

d. Using a vernier caliper, measure the slip ring diameter.

Standard diameter:

14.2 to 14.4 mm (0.559 to 0.567 in.)

Minimum diameter:

14.0 mm (0.551 in.)

If the diameter is less than the minimum, replace the rotor assembly.

Fig. 22: Measuring Slip Ring Diameter
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY

a. Using a vernier caliper, measure the exposed brush length.

Standard exposed length:

10.5 mm (0.413 in.)

Minimum exposed length:

4.5 mm (0.177 in.)

If the exposed length is less than the minimum, replace the brush holder assembly.

2009 Toyota Tundra

2009 ELECTRICAL Charging (3UR-FBE) - Tundra

Fig. 23: Measuring Exposed Brush Length
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

3. INSPECT GENERATOR DRIVE END FRAME BEARING

a. When rotating the bearing, check that there is no abnormal noise and that it rotates smoothly. If

necessary, replace the bearing.

Fig. 24: Checking Generator Drive End Frame Bearing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4. REPLACE GENERATOR DRIVE END FRAME BEARING

a. Remove the 4 screws and retainer plate.

Fig. 25: Locating Retainer Plate Screws
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Using SST and a hammer, tap out the bearing.

2009 Toyota Tundra

2009 ELECTRICAL Charging (3UR-FBE) - Tundra

SST 09950-60010 (09951 -00250), 09950-70010 (09951-07100)

Fig. 26: Taping Out Bearing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Using SST and a press, press in a new bearing.

SST 09950-60010 (09951 -00470), 09950-70010 (09951-07100)

Fig. 27: Pressing In Bearing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

d. Install the retainer plate with the 4 screws.

Torque: 2.3 N*m (23 kgf*cm, 20 in.*lbf)

Fig. 28: Locating Retainer Plate Screws
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 ELECTRICAL Charging (3UR-FBE) - Tundra

5. INSPECT GENERATOR ROTOR BEARING

a. When rotating the bearing, check that there is no abnormal noise and that it rotates smoothly. If

necessary, replace the generator rotor.

Fig. 29: Checking Generator Rotor Bearing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

REASSEMBLY

1. INSTALL GENERATOR ROTOR ASSEMBLY

a. Place the drive end frame on the pulley.

b. Install the rotor to the drive end frame.

Fig. 30: Installing Rotor To Drive End Frame
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2. INSTALL GENERATOR COIL ASSEMBLY

a. Place the generator washer on the rotor.

2009 Toyota Tundra

2009 ELECTRICAL Charging (3UR-FBE) - Tundra