Platform Controls; Joystick Controllers - Genie Z-45/22 Service Manual

Section 7 - Repair Procedures

Platform Controls

1-1

Joystick Controllers

Maintaining each joystick controller at the proper
settings is essential to safe machine operation.
Every joystick controller should operate smoothly
and provide proportional speed control over its
entire range of motion.
a
g f
a horsepower limiter
b quick disconnect terminal strip
c drive proportional controller
d primary boom proportional controller
e turntable rotate proportional controller
f extend/retract proportional controller
g secondary boom proportional
controller
Primary Boom Up/Down
Controller Adjustments
1 Check the battery condition with a volt meter.
The reading should be 12V DC or more to
accurately adjust the controller.
2 Turn the key switch to platform control and pull
the Emergency Stop button to the on position
at both the ground and platform controls. Do
not start the engine.
3 Open the platform control box lid and locate the
primary up/down controller.
7 - 2
b
e d c
a b
4 Set the ramp rate: Turn the trimpot adjustment
screw clockwise 15 turns or until you hear a
click, then turn the screw counterclockwise 5
turns.
5 Connect the red lead(+) from a volt meter to
the "A" terminal on the controller PC board.
Connect the black lead(-) to ground.
6 Set the threshold: Press down the foot switch,
then slowly move the control handle off center
until the moment a voltage reading appears.
Adjust the voltage to 2.50V DC. Turn the
threshold trimpot adjustment screw clockwise
to increase the voltage or counterclockwise to
decrease the voltage.
7 Set the max-out: Press down the foot switch,
then move the control handle all the way to the
up position. Adjust the voltage to 5.02V DC.
Turn the max-out trimpot adjustment screw
clockwise to increase the voltage or
counterclockwise to decrease the voltage.
Genie Z-45/22
Service Manual - First Edition
c d e f g h
a dual (lo) adjustable trimpot
b ramp rate adjustable trimpot
c terminal "R" - activates max-out range
d terminal unused
e terminal "X" auxiliary
f terminal "-" - ground
g terminal "+" - battery, positive
h terminal "A" - proportional output
i threshold adjustable trimpot
j max-out adjustable trimpot
Part No. 29487
i j