Tecumseh HH100 Handbook page 25

TERMINAL
POST
THRU BOLTS (2)
LOCK NUTS (2)
4. Assembly
a. Install drive end cap, engaging nut and gear,
anti-drift spring, spring retainer, retaining ring,
and dust cover to armature. Install armature
into housing.
b. Install brush card assembly and two (2) thru
bolts so stops on bolts will secure brush card.
Secure lock nuts on drive end of starter.
c. Install thrust washer on armature and install
commutator end cap. Insure that the two-
piece grommet is properly installed to prevent
moisture from entering this area.
d. Install end cap lock nuts.
When using starter motor, part no. 33835 to replace
starter part no. 32817 on vertical crankshaft models,
proceed as follows.
1. Remove the two (2) 5/16-18 x 7/8'' (22.225 mm)
screws that attached the original starter and discard.
2. Install the 5/16-18 x 1-3/8'' (34.925 mm) adjusting
bolt through the hole in the starter bracket with
a lock nut on each side of the bracket. Position
bolt so head will not touch cylinder when starter
is installed.
3. Install motor with two (2) 5/16-18 x 5/8'' (115.875
mm) screws and lockwashers. Torque screws
to 140-170 inch lbs. (18.2 - 19.2 Nm).
4. Turn adjusting bolt so head of bolt securely bottoms
on cylinder. Tighten nuts to hold bolt in position.
BRUSH CARD
BRUSH AND BRUSH
SPRING (4)
COMMUTATOR
END CAP
COMMUTATOR
END CAP
LOCK NUTS (2)
TWO PIECE GROMMET
AND TERMINAL BOLT
NEW STARTER MOUNTING SCREWS AND WASHERS
STARTER MOTOR TESTS
a. Preliminary Tests
Before checking the starter motor perform the
following preliminary checks:
1. Battery must be at least 3/4 full charge.
2. Determine parts such as switch, solenoid,
between power source and starter motor are
in good working order.
3. Terminals must be bright and clean for full
conductance.
4. Check wires for breaks, insulation breakdown.
5. Proper size (gauge) wire between power source
and starter motor.
6. If starter motor does engage the flywheel
but fails to crank engine, check the engine
for excessive friction caused by a seized rod
or piston.
7. Check related parts such as clutches, pulleys,
etc. for excessive friction.
b. Visual Checks
Make a visual check of the starter motor before
checking electrically. Remove the starter motor
and check for freedom of operation by turning
the shaft. Look for:
1. Worn out brushes.
2. Weak brush springs.
3. Dirt on the commutator bars.
4. Armature binding, caused by dirt or bushings
being gummed up through excessive lubrication.
STARTER CHECKING AND SERVICE. Remove nuts
at both ends of starter and take off rear end cap.
CHECK FIELD. Using a continuity light or ohm meter,
check field by attaching one lead to each field coil
connection. Continuity should exist between these
two points. Check continuity between each field coil
connection and the starter housing. No continuity
should exist.
LOCK NUT
ADJUSTING BOLT
CYLINDER
23