SECTION 4 - CONTROL COMPONENTS
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Motor Brush Installation
Once brush housing has been removed, inspect the rotor com
-
mutator for excessive wear before installing a new brush set.
The rotor commutator surface when new, is approximately 1/8
in. (3mm) in thickness.
Figure 4-42. Brush Housing Installation
1.
Brush Housing
2.
Brush Housing Screws
3.
Mark Front of Motor and Brush Housing for reference
when reassembling.
Figure 4-43. Brush Assembly Connections
1.
Negative (–) Post
3.
Brush Assemblies
2.
Positive (+) Post
4.
Spring Washer
Note:
Length of wires to brush assemblies shown exaggerated
for illustrative purposes.
1
2
3
1
2
3
3
4
Figure 4-44. New Brush Installation
1.
Brush Terminal Screw
4.
Brush Spring
2.
Brush
5.
(See Installation Note Below)
3.
Brush Holder
Installation the same for all four (4) brush assemblies.
Note:
Using a clean towel, push each brush (2) up into it’s
holder (3), slide the spring (4) over the side of the brush.
This will hold each brush in place and allow them to
clear the rotor commutator during reassembly.
Clean the rotor commutator with a non-conductive
electrical cleaner before assembling the brush housing
to the motor housing.
1
2
3
4
5
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