Toyota 4Runner manuals

Toyota 4Runner: Inspection

INSPECTION

PROCEDURE

1. INSPECT GENERATOR WITH CLUTCH PULLEY

(a) Hold the center of the generator with clutch pulley and check that the outer ring turns counterclockwise and does not turn clockwise.

Text in Illustration


Free

Lock

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

2. INSPECT GENERATOR BRUSH HOLDER ASSEMBLY

(a) Using a vernier caliper, measure the brush length.

Standard exposed length:

9.5 to 11.5 mm (0.374 to 0.453 in.)

Minimum exposed length:

4.5 mm (0.177 in.)

Text in Illustration

*1

Length

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


3. 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.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

Slip ring - Slip ring

20°C (68°F)

2.3 to 2.7 Ω

Text in Illustration

*1

Slip Ring

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


(c) Check if the generator rotor is grounded.

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

Slip ring - Rotor core

Always

10 MΩ or higher

Text in Illustration

*1

Slip Ring

*2

Rotor Core

If the result is not as specified, replace the generator 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.)

Text in Illustration

*1

Diameter

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


Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE GENERATOR PULLEY CAP (a) Using a screwdriver, remove the generator pulley cap. 2. REMOVE GENERATOR WITH CLUTCH ...

Reassembly
REASSEMBLY PROCEDURE 1. INSTALL GENERATOR DRIVE END FRAME BEARING (a) Using SST and a press, press in a new generator drive end frame bearing. SST: 09950-60010 09951-00470 SST: ...

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Security Indicator Light Circuit
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