Install Ball Bearing; Checking Rotor; Check Brushes; Check Slip Ring - Briggs & Stratton MS-1055 Repair Manual

INSTALL BALL BEARING

1. Lightly lubricate bearing O.D. with engine oil.
2. Press in new bearing using bearing driver #19226,
Fig. 30.
3. Install retainer and four screws.

CHECKING ROTOR

The following test will be made with the meter in the
"Diode Test Position"
1. Use digital multimeter and check for continuity
between slip rings as shown, Fig. 31.
a. Meter should make
(continuity).
b. If meter displays "OL", (no continuity) replace
rotor.
2. Check for continuity between slip ring and rotor
shaft.
a. Meter should display "OL", (no continuity).
3. Measure slip ring diameter, Fig. 32.
STD: 14.4 mm (.567")
Reject: 14.0 mm (.551")
Slip rings may be cleaned with fine sandpaper (#300 –
500 grit).

CHECK BRUSHES

Measure length of brushes protruding from brush
holder, Fig. 33.
STD: 10.5 mm (.413")
Reject: 8.0 mm (.315")
.
continuous tone
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CHARGING SYSTEMS
19226 DRIVER
Fig. 30 – Install Ball Bearing
Fig. 31 – Check Rotor
Fig. 32 – Check Slip Ring
Fig. 33 – Check Brushes
1
2
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