Troubleshooting - Tecumseh VLV Technician's Handbook

TROUBLESHOOTING 12 VOLT STARTERS (Cont.)
PROBLEM
Motor stalls under load
Intermittent operation
Sluggish disengagement
of the drive assembly
pinion gear
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PROBABLE CAUSE
Shorted or open armature
Shorted field coil
Brushes binding in holders
Dirty or oily commutator
Loose or faulty electrical
connections
Open armature
Break in electrical circuit
Dirt and oil on assembly and
armature shaft
Bent armature
Not For Resale
FIX
Replace armature.
Correct, or replace housing assembly.
Free up brushes. Replace worn brushes
and those which have come in contact with
grease and oil.
Clean and dress commutator.
Correct
Replace armature and interlock switch.
Disconnect ignition cut-off wire at the
engine. Crank engine, if spark, check
ignition switch, safety switch and interlock
switch. Check wires for poor connections,
cuts or breaks.
Clean drive assembly and armature shaft
and relubricate shaft splines.
Replace armature.
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