Toyota Venza manuals

Toyota Venza: Inspection

INSPECTION

PROCEDURE

1. INSPECT GENERATOR CLUTCH PULLEY

(a) Hold the generator rotor using SST, and turn the clutch pulley clockwise to check that the outer ring locks.

SST: 09820-63021

Text in Illustration

*1

Free

*2

Lock

If the result is not as specified, replace the clutch pulley.


2. INSPECT GENERATOR DRIVE END FRAME BEARING

(a) Check that the bearing is not rough or worn.

OK:

The bearing rotates smoothly.

If the bearing does not rotate smoothly, replace the bearing.


3. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY

(a) Using a vernier caliper, measure the length of the exposed brushes.

Text in Illustration

*1

Length

Standard exposed brush length:

9.5 to 11.5 mm (0.375 to 0.452 in.)

Minimum exposed brush length:

4.5 mm (0.178 in.)

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


4. INSPECT GENERATOR ROTOR ASSEMBLY

(a) Check that the generator rotor bearing is not rough or worn.

If necessary, replace the generator rotor assembly.


(b) Check the generator rotor for an open circuit.

Text in Illustration

*1

Slip Ring

*2

Ohmmeter

(1) Using an ohmmeter, measure the resistance between the slip rings.

Standard Resistance:

Condition

Specified Condition

Approx. 20°C (68°F)

except 150 A

2.3 to 2.7 Ω

Approx. 20°C (68°F)

for 150 A

1.5 to 1.9 Ω

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


(c) Check the rotor for a short to ground.

Text in Illustration

*1

Slip Ring

*2

Rotor

*3

Ohmmeter

(1) Using an ohmmeter, measure the resistance between the slip ring and rotor.

Standard Resistance:

Tester Condition

Specified Condition

Slip ring - Rotor

1 MΩ or higher

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


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

Text in Illustration

*1

Diameter

Standard diameter:

14.2 to 14.4 mm (0.560 to 0.566 in.)

Minimum diameter:

14.0 mm (0.552 in.)

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


Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE GENERATOR REAR END COVER (a) Remove the 3 nuts and generator rear end cover. 2. REMOVE TERMINAL INSULATOR ...

Replacement
REPLACEMENT PROCEDURE 1. REPLACE GENERATOR DRIVE END FRAME BEARING (a) Remove the 4 screws and bearing retainer from the drive end frame. ...

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