Platform Controls; Controllers - Genie Z-30/20N Service Manual

Section 4 • Repair Procedures

Platform Controls

1-1

Controllers

The drive joystick is connected to the drive motor
controller, located under the drive chassis cover at
the non-steer end of the machine. Maintaining the
boom function speed controller at the proper
settings is essential to safe machine operation.
The boom function speed controller should operate
smoothly and provide proportional speed control
through its entire range of motion. For further
information or assistance, contact the Genie
Industries Service Department.
a boom function speed controller
b drive and brake printed circuit board
c drive joystick
4 - 2
a
b
c
Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N
Boom Function Speed
Controller Adjustments
Electrocution/burn hazard. Contact
with electrically charged circuits
could result in death or serious
injury. Remove all rings, watches
and other jewelry.
Note: Do not adjust the boom function speed
controller unless the static battery supply voltage is
above 24V DC.
1 Turn the key switch to platform controls and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
2 Open the platform control box lid and locate the
boom function speed controller.
g
f
e
a black/red wire
b diode
c white/red wire
d boom function speed controller
e ramp rate trimpot
f threshold trimpot
g max out trimpot
June 2011
REV A
a
b
c
d
Part No. 139378