695578
Does not function
Weak or dead battery.
Check charge and/or replace battery.
Loose or faulty electrical connections.
Correct.
Corroded battery terminals and/or
Clean terminals and/or connections.
electrical connections.
Load on engine.
Disengage brake.
Electric starter cranks, but no spark
Disconnect ignition cut-off wire at the engine.
at spark plug.
Crank engine. If spark at spark plug, ignition
switch, safety switch is in operative. If no
spark, check air gap. Check wires for poor
connections, cuts or breaks.
Electric starter does not crank engine.
Remove starter wire. Use a jumper battery
and cables and attach directly to starter wire.
If starter cranks engine the starter is okay,
check solenoid, starter switches, safety
switches and interlock switch. Check wires
for poor connections, cuts or breaks.
Electric starter cranks, but engine
Check flywheel ring gear for broken teeth.
does not turn over.
Replace flywheel if necessary.
Brushes sticking.
Free brushes. Replace worn brushes and
those which have come in contact with grease
and oil.
Open or shorted armature.
Replace armature.
Shorted, open or grounded field coil.
Repair or replace housing.
Armature binding or bent.
Free armature and adjust end play, replace
armature, or replace starter.
Low RPM
Dirty or oily commutator.
Clean and dress commutator.
Incorrect engine oil.
Ensure the correct weight of oil is being used.
Unit controls engaged.
Insure all unit controls are in neutral or
disengaged.
Weak or annealed brush springs.
Replace springs.
Loose or faulty electrical connections
Correct.
in motor.
Brushes not seated properly.
Correct.
Worn bearings in cap assemblies.
Clean bearings or replace cap assemblies.
Bent armature.
Replace armature.
Binding armature.
Free up armature. Adjust armature end
play.Binding armature. Free up armature.
Adjust armature end play.
Dirty armature commutator.
Clean commutator.
Shorted or open armature.
Replace armature.
Remedy and Reference
Problem
Table 3. Troubleshooting 12 Volt Starters
Probable Cause
13-6
