Kohler COMMAND CH18-745 User Manual download pdf (Page 143)

8.26

Section 8

Electrical System and Components

NOTE: Use a brush holder tool to keep the

brushes in the pockets. A brush holder

tool can easily be made from thin sheet

metal. See Figure 8-36.

Figure 8-36. Brush Holder Tool (Style ‘‘A’’ End Cap).

Style ‘‘B’’ End Cap Brush Replacement

Starters with Style ‘‘B’’ end caps have the brushes in a

plastic carrier housing, separate from the end cap.

Replacement brushes come preassembled in the

carrier housing, retained with two carton staples.

Commutator Service

Clean the commutator with a coarse, lint free cloth. Do

not use emery cloth.

If the commutator is badly worn or grooved, turn it

down on a lathe or replace the armature.

Starter Reassembly

1. Place the thrust washer (if so equipped) over the

drive shaft of the armature.

Figure 8-35. Style ‘‘A’’ Commutator End Cap with

Brushes.

Self-

Tapping

Screw

Negative

(-) Brush

Stud Terminal with

Positive (+) Brushes

Brush Springs

Brush

Holder

Negative

(-) Brush

Self-Tapping

Screw

Sheet Metal Brush

Holder Tool

Brush Holder Tool Installed

Over Brushes and End Cap

1/2"

1 1/8"

1 3/4"

2 1/2"

2. Insert the armature into the starter frame. Make

sure the magnets are closer to the drive shaft end

of armature. The magnets will hold the armature

inside the frame.

3. Install the drive end cap over the drive shaft.

Make sure the match marks on the end cap and

starter frame are aligned. See Figure 8-37.

Figure 8-37. Starter Assembly Match Marks.

For Style ‘‘A’’ Commutator End Caps:

4. Install the brush holder tool to keep the brushes in

the pockets of the commutator end cap.

5. Align the match marks on the commutator end

cap and the starter frame. Hold the drive end and

the commutator end caps firmly to the starter

frame. Remove the brush holder tool.

For Style ‘‘B’’ Commutator End Caps:

4. If the brush assembly is not being replaced,

position the brushes in their pockets in the carrier.

Move them to the retracted position, and install

carton staples to retain them. See Figure 8-38.

5. Align the terminal stud block with the notch in the

starter frame and slide the brush/carrier assembly

into the frame. The commutator will push the

carton staples out as the brush assembly is

installed. Position the end cap over the brush

assembly, so the holes for the thru bolts are

aligned with those in the brush carrier.

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Kohler COMMAND CH18-745 User Manual Page 143

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