Platform Controls; Circuit Boards; Section 4_Repair Procedure, - Genie GR-20J Service Manual

Section 4 • Repair Procedures

Platform Controls

The platform controls, used to operate the machine
from the platform. The platform controls are used
to operate the various machine functions.
The platform controls consist of an electronic
circuit board, joystick, alarm, buttons and LEDs.
For further information or assistance, consult the
Genie Service Department.
4 - 2
1-1

Circuit Boards

How to Remove the Platform
Controls Circuit Board
1 Push in the red Emergency Stop button to the
off position at both the ground and platform
controls.
2 Remove the fasteners securing the top plate
assembly to the platform control box. Carefully
remove the top plate assembly from the box to
expose the circuit boards.
3 Tag and disconnect the wire harness
connectors from the platform controls circuit
board.
4 Remove the fasteners securing the platform
controls circuit board to the top plate assembly.
Set the fasteners to the side.
5 Remove the platform controls circuit boards
from the top plate assembly.
GR-20J • GR-26J
September 2016
Electrocution/burn hazard. Contact
with electrically charged circuits
could result in death or serious
injury. Remove all rings, watches
and other jewelry.
Component damage hazard.
Electrostatic discharge (ESD) can
damage printed circuit board
components. Maintain firm contact
with a metal part of the machine
that is grounded at all times when
handling printed circuit boards OR
use a grounded wrist strap.
Part No. 227656