Inspect Exposed Brush Length; If Necessary, Replace Brushes; Inspect Positive Side Rectifier - Toyota 22R-E Service Manual

CHARGING SYSTEM – Generator
Brushes

1. INSPECT EXPOSED BRUSH LENGTH

Using a scale, measure the exposed brush length.
Standard exposed length: 10.5 mm (0.413 in.)
Minimum exposed length: 1.5 mm l0.059 in.)
If the exposed length is less than minimum, replace the
brushes.

2. IF NECESSARY, REPLACE BRUSHES

(a) Unsolder and remove the brush and spring.
(b) Run the wire of the brush through the hole in the brush
holder, and insert the spring and brush into the brush
holder.
(c) Solder the brush wire to the brush holder at the ex–
posed length.
Exposed length: 10.5 mm (0.413 in.)
(d) Check that the brush moves smoothly in the brush
holder.
(e) Cut off the excess wire.
(f) Apply insulation paint to the soldered point.
Rectifier

1. INSPECT POSITIVE SIDE RECTIFIER

(a) Using an ohmmeter, connect one tester probe to the
positive stud and the other to each rectifier terminal.
(b) Reverse the polarity of the tester probes.
(c) Check that one shows continuity and the other shows
no continuity.
If not, replace the rectifier holder.
CH–11