How To Replace The Voltage Regulator - Genie Z-45 Service And Repair Manual

September 2016
4 Start the engine from the ground controls and
move the rpm select toggle switch to the
maintained high idle position. Check the
voltage on the generator.
Result: The voltage should be 54V DC.
5 If the voltage reading is not 54V DC, insert a
small flat blade screwdriver into the
potentiometer located inside of the generator.
Use the access hole on the back of the
generator labeled volt adj.
Component damage hazard. Be
sure that the screwdriver is
properly inserted into the
potentiometer or the generator
and/or voltage regulator may
become damaged.
6 Carefully adjust the potentiometer to obtain a
54V DC voltage reading. Turn the
potentiometer clockwise to increase the
voltage or counterclockwise to decrease the
voltage. Do not rotate the potentiometer past
the internal stops.
Component damage hazard.
The voltage regulator inside the
generator will become
damaged if the potentiometer is
rotated past the internal stops.
Note: The maximum range of motion of the
potentiometer on the voltage regulator is 280° and
the maximum allowed torque is 5 oz-in / 0.035 Nm.
Part No. 1268546GT Z®-45/25 Bi-Energy • Z®-45/25J Bi-Energy
How to R eplac e the Voltage Regulator
How to Replace the Voltage
Regulator
1 Disconnect the battery packs from the
machine.
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
2 Remove the engine pivot plate latch retainer.
3 Open the engine pivot plate latch and swing
the engine out away from the machine to
access the generator.
4 Tag and disconnect the positive and negative
battery cables from the generator.
5 Loosen the tension adjustment bolt on the
generator.
6 Pull the generator away from the machine and
remove the belts from the generator pulley.
7 Remove the generator mounting fasteners
then remove the generator from the machine.
8 Remove the 3 nuts from the battery cable
terminal posts.
9 Remove the 3 screws that hold the plastic
cover onto the generator. Carefully remove
the cover.
Service and Repair Manual
Generator
45