Genie RL4 Vertical Mast Service Manual page 79

August 2015
Problem
Generator produces full voltage
at no load or voltage drops at
full load
Generator voltage too high
Generator produces no voltage
at no load or at full load
Generator will not hold voltage
(loss of residual magnetism)
Generator voltage spikes
Part No. 1266665
Possible Cause
Loose or broken lead wires
Rotor open or shorted
Stator grounded or shorted
High engine speed
Faulty capacitor
Loss of residual magnetism
Open winding
Machine has been unused for a significant
length of time
Rotor shorting out when the unit gets hot
Pinched leads
Faulty capacitor
Faulty diode
Incorrect engine adjustment, fuel line or
faulty fuel
Loose connection
Faulty ground connection
Load induced
RL4 Vertical Mast
Service Manual
Diagnostics
Solution
Inspect lead wires and connections for
broken wires and loose connections.
Measure resistance between leads..
Contact the Genie Service
Department.
Adjust the rpm
Refer to Section 2, Specifications
Replace capacitor.
Flash the rotor.
Replace the generator.
Flash the rotor.
Inspect rotor windings for broken
and/or burned wires.
Inspect and repair as needed.
Replace the capacitor.
Replace the diode.
Change fuel filter and check engine
speed.
Inspect all connections and repair as
needed.
Inspect all ground connections and
repair as needed.
Filter load.
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