FAULT TESTING
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
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STARTER / GENERATOR
LOSS OF POWER
(INSUFFICIENT FUEL)
Faulty fuel pump Replace fuel pump
Dirty carburetor Clean carburetor
Dirt in fuel tank or hoses Clean
Clogged fuel filter Replace fuel filter
Air leak in system Check mounting hardware and gaskets.
Repair or replace
LOSS OF POWER
(INSUFFICIENT AIR)
Dirty air cleaner Clean/replace filter element
Throttle linkage Adjust or Repair
Blocked air inlet Clean fuel filter
SURGING
Governor linkage Refer to SPEED CONTROL section
Condition Possible Cause Correction
Condition Possible Cause Correction
STARTER IS NOISY
Bolts are loose Tighten
Starter/generator has foreign matter inside Clean starter/generator interior
Bearings are faulty Replace
Bearings contain foreign matter Replace
Bearing needs grease Replace
RECTIFICATION IS IMPERFECT
Load exceeds specification Adjust load to specification
Armature bent Repair or replace if necessary
Brushes are worn beyond limits Replace
Commutator is excessively rough Smooth with emery cloth
Incorrect voltage output Check and replace any components if
required
Commutator is dirty with oil or dust Clean with a cleaner and dry cloth
Field coil is shorted or broken Repair or replace
GENERATOR DOES NOT CHARGE
Corroded or loose battery connections Clean and tighten battery connections
Incorrect voltage regulator output Replace
Poor voltage regulator ground connection Repair
Open or short circuit Repair or replace
Faulty starter/generator Repair starter/generator
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