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 BRUSH REPLACEMENT.
Brushes can
b.
As each part is reinstalled,
5-59.
be replaced without removing motor from
examine it for serviceability. Do
not reinstall worn or damaged parts.
truck.
Procede as follows:
Disconnect battery cable.
a.
c.
Place the clutch assembly (Item 15)
on the armature shaft (Item 14). To
Remove brush covers (band or
b.
facilitate replacing the snap ring (Item
plates).
12) and retainer (Item 13) onto the
Remove shunt retaining screw and
armature:
c.
remove brush from brush box.
1.
Place the retainer (Item 13) on
the armature shaft with the cupped
d.
Seat new brush to contour of
surface facing the snap ring groove.
commutator by sanding on a drum the
same diameter as communutator or in-
Place the sanp ring (Item 12)
serting sandpaper between the brush
2.
face and the commutator.
on the end of the shaft.
With a
piece of wood on top of it, force
CAUTION
the ring over the shaft with a light
hammer blow, then slide the snap-ring
Never use emery cloth or emery
down into the groove.
paper, the grit is metallic and
will cause damage.
3.
To force the retainer (Item 13)
Final seating of brushes can be
over the snap ring place a suitable
e.
achieved by using a fine mesh seating
washer over the shaft and squeeze
stone compound similar to a product
the retainer and washer together
made by Ideal Industries, Inc.,
with pliers.
Follow directions
Sycamore, Illinois.
4.
Remove the washer.
on the box.
CHECKING BRUSH SPRING PRESSURE
5.
Assemble collar (Item 11) over
5-60.
shaft.
a.
Insert a paper strip between
brush and commutator.
See Figure
d.
Refer to the disassembly procedure
and follow in reverse to complete the
reassembly.
b.
Place leather loop, or spring
scale hook, between pressure spring
e. When the solenoid is reinstalled,
apply sealing compound between field
and brush.
frame, f l a n g e a n d s o l e n o i d j u n c t i o n .
With pull in line with center of
c.
brush, lift spring scale until paper
f.
After reassembly, install the
starter to the engine flywheel housing
begins to move free.
and secure with three bolts as shown
The reading on the spring scale
in Figure 5-69.
d.
is the total spring force.
Record
reading and compare with specifications.
Replace spring if necessary
5-61.
STARTER REASSEMBLY AND
INSTALLATION.
Refer to figure 5-70 and reassemble
a.
the starter assembly.
5-48
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