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Brush and Brush Rig
1.
Check the length of the brush.
A brush worn down to the ser-
vice limit line should be replaced.
Description
Length of brush
Load of brush spring
Standard value
18
mm
(.709 in.)
3.04 to 4.22 N
( • 7 to 1 lbs.)
Service limit
8
mm
(.315 in.)
2.06 N (.5 lbs.)
2.
Check the brush spring pressure to make sure the brush moves
smoothly in the brush holder.
Reassembly
Reverse
the disassembly procedure but pay special attention
to
reassembly of the following.
1.
Install
seals
in
front
and
rear
of
the
front
bearing
as
shown.
2.
To install the rotor assembly
in
the
rear
bracket,
push
the
brushes
into
the
brush
holder,
insert
a
wire
to
hold
them
in
raised position, and then install
the rotor.
NOTE:
After installation, remove
the wire.
SERVICE BULLETINS
Please refer to the Service Bulletin Section at the rear of the manual
as there are several that relate to the electrical system.
106
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