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14-8
GROUP 14- STARTING SYSTEM
starter frame.
15. Install the
starter drive gear
plunger lever to the
frame and starter
drive assembly, and install
the pivot
pin.
16. Position the
return spring on
the plunger lever,
and the rear end
housing to the starter
frame. Install
the through bolts
and tighten to spec-
ified torque (55-75 inch
pounds). Be
sure that the stop
ring retainer is
seated properly in
the rear end hous-
ing.
17. Install the commutator
brushes
in the brush holders.
Center the brush
springs on the brushes.
18. Position the
plunger lever cov-
er and the brush
cover band, with its
gasket, on the
starter. Tighten the
band retaining screw.
19. Connect
the starter to a bat-
tery to check its
operation.
ARMATURE REPLACEMENT
1. Loosen the brush cover band
retaining screw and remove the brush
cover band, gasket, and the starter
drive plunger lever cover. Remove
the brushes hom their holders.
2. Remove the through bolts, the
rear end housing, and the drive
plunger lever return spring.
3. Remove the pivot pin retaining
the starter gear plunger lever, and
remove the lever.
4. Remove the armature.
If
the
starter drive gear assembly is being
reused, remove the stop ring. retainer
and the stop ring from the end of the
armature shaft, and remove the as-
sembly.
S. Place the drive gear assembly
on the new armature with a new stop
ring.
6. Install the fiber thrust washer
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CLEANING
AND INSPECTION
1. Use a brush
or air to ciean the
field coils, armature, commutator,
armature shaft, front end
plate,
and
rear end housing.
Wash
all
other
parts in solvent
and
dry
the parts.
2. Inspect the
armature windings
for broken or
burned insulation and
unsoldered connections.
3. Check the
armature for open
circuits and grounds.
4. Check the
commutator for run-
out (Fig.
1).
Inspect
the armature
shaft and the two
bearings for scor-
ing and excessive
wear. On a starter
with needle bearings
apply a small
amount of grease to the needles. If
the commutator is rough, or more
than 0.005 inch out-of-round, turn it
down.
FIG.
Check
1-Commutator Runout
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MAJOR REPAIR OPERATIONS
Use the following
procedure when
it becomes necessary
to completely
overhaul the starter.
Fig.
2 iilustrates
a partially disassembled
starter.
DISASSEMBLY
1. Loosen the
brush cover band
retaining screw
and remove the brush
cover band
and the starter drive
plunger lever
cover. Observe the lead
positions for
assembly and then re-
move the commutator brushes from
the brush holders.
2. Remove
the
through
bolts,
starter rear end housing, and the
starter drive plunger lever rc;tum
spring.
3. Remove the pivot pin retaining
the starter gear plunger lever and re-
move the lever and the armature.
4. Remove the stop ring retainer.
Remove and discard the stop ring re-
on the commutator end of the arma-
ture shaft and install the armature.
7. Position the drive gear plunger
lever to the frame and drive gear as-
sembly and install the pivot pin.
8. Position the drive plunger lever
return spring, the rear end housing,
and the front end plate to the starter
frame, and then install and tighten
the through bolts to specification. Be
sure that the stop ring retainer is
seated properly in the drive gear
housing. If the starter has needle
bearings apply a small amount of
grease to the needles before installing
the starter ends.
9. Place the brushes in their hold-
ers, and center the brush springs on
the brushes.
10. Position the plunger lever cov-
er and the brush cover band, with its
gasket, and then tighten the retaining
screw.
11. Connect the starter to a bat-
tery to check its operation.
S. Check the brush holders for
broken springs and the insulated
brush holders for shorts to ground.
Tighten any rivets that may be loose.
Replace the brushes if worn to 'A
inch in length.
6. Check the brush spring tension.
Replace the springs if the tension is
not within specified limits
(40
ounces
minimum).
7. Inspect the field coils for burned
or broken insulation and continuity.
Check the field brush connections
and lead insulation.
taining the starter drive gear to the
end of the armature shaft, and re-
move the starter drive gear assembly.
S. Remove the front end plate.
6. Remove the two screws retain-
ing the ground brushes to the frame.
7. On the field coil that operates
the starter drive gear actuating le-
ver, bend the tab up on the field re-
tainer and remove the coil retainer.
8. Remove the three coil retaining
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