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Fig. 90
Fig. 91
BRUSH INSPECTION AND REPLACEMENT
CAUTION: DISCONNECT THE TOOL FROM THE POWER SOURCE.
Brush life varies. It depends on the load on the motor. Check the brushes after the first 50 hours of use
for a new machine or after a new set of brushes has been installed.
After the first check, examine them after about 10 hours of use until such time that replacement is
necessary.
The brush holders (A) Fig. 90, are located on the motor housing opposite each other. Fig. 91, illustrates
one of the brushes (B) removed for inspection. When the carbon on either brush is worn to 3/16″ in
length or if either spring or shunt wire is burned or damaged in any way, replace both brushes. If the
brushes are found serviceable after removing, reinstall them in the same position as removed.
A
B