Specifications

24
ARMATURE CHECK. If commutator bars are glazed
or dirty they can be turned down in a lathe. While
rotating, hold a strip of 00 sandpaper lightly on the
commutator, moving it back and forth. (Do not use
emery cloth). Recut grooves between commutator
bars to a depth equal to the width of the insulators.
Using a continuity tester to make certain no continuity
exists between the commutator (copper) and the
iron of the armature, rotate armature and check out
all commutator bars.
The armature can be thoroughly checked with a growler
if available.
CHECK BRUSHES. Before removing armature, check
brushes for wear. Make sure brushes are not worn
to the point where the brush wire bottoms out in the
slot of the brush holder. Brush springs must have
enough strength to keep tension on the brushes and
hold them against the commutator.
If brushes need replacement, remove by unhooking
terminals or clipping connections and resoldering.
If brush card is warped from overheating, replace
the brush card assembly.
3. With a pliers or vise grip tool, grasp the through-
bolts as close to the flanged end as possible
(away from the threaded end), and remove the
two nuts retaining the driving end cap of the starter.
Remove the armature and driving cap assembly.
Remove the two through-bolts, noting the position
of the brush ground eyelet under the through-
bolt flange.
4. Note the position and the connections of the brush
wires. Clip the solid field wires as close to the
connectors as possible.
5. Remove the brush card from the starter, noting
the position of the clearance slot. Clean the starter
and all parts of accumulated dust and dirt. Scrape
the insulating varnish off of the solid field wires,
back approximately 1/2” (12.7 mm) from ends.
6. Insert the new brush card into position, guiding
the solid field wires through the proper slots in
the brush card.
7. Using the proper crimp connector, crimp and solder
the remaining brush leads to the solid field wires.
Use a pair of pinchers or needle-nose pliers to
hold the woven brush lead adjacent to the connector
while soldering (this provides a heat sink so that
solder does not flow up the brush lead). Using
electrical tape or shrink tubing, insulate the crimped
connection nearest the starter terminal post. Position
the wires to prevent shorts or grounding of the
starter.
8. Spread the brushes to install the armature into
the housing, and replace the starter through-
bolts, being sure to install them through the ground
brush eyelet terminals. Install and tighten the
drive end through-bolt nuts. Tighten securely,
but do not over tighten as this may warp the
new brush card and impair brush movement.
9. Replace the thrust washer on the end of the armature
and replace the starter end cap. Install the starter
end cap locking nuts and tighten securely. Tighten
the nut on the starter terminal post.
10. Test the starter for proper operation before
reinstallation on the engine.
INSTRUCTIONS FOR REPLACING STARTER BRUSH
CARD #33848 ON STARTER #33835
1. Loosen the two nuts on the starter terminal post,
but do not remove.
2. Remove the nuts holding the starter and cap in
place. Remove the starter end cap. Note the thrust
washer on the end of the armature.
TERMINAL POST
BRUSH CARD
BRUSH AND BRUSH
SPRING (4)