Primary Boom Angle Sensor - Genie ZX-135/70 Service Manual

August 2014
4-8

Primary Boom Angle Sensor

The primary boom angle sensor is used to limit the
angle of the primary boom relative to the angle of
the secondary boom and gravity.
How to Calibrate the Primary
Boom Angle Sensor
Note: If the secondary boom angle sensor has
been removed or replaced, it will need to be
calibrated first. Refer to repair procedure,
Secondary Boom Angle Sensor for the calibration
procedure.
Note: Perform this procedure with the machine on
a firm, level surface and in the stowed position with
the axles extended.
Note: A digital level will be required to perform this
procedure.
Note: A kit is available through the Genie Product
Support (Genie part number 58351). This kit
includes a digital level with a magnetic base and
cable harnesses.
Note: Use the following chart to identify the
description of each LCD screen control button
used in this procedure.
Plus Minus
Part No. 218700
Previous Enter
ZX-135/70
Boom Components
1 Push in the ground controls red Emergency
Stop button to the off position.
2 Turn the key switch to ground controls.
3 Open the ground control box.
4 Locate the calibration toggle switch at the top
of the ground control box. Activate calibration
mode by moving the toggle switch in the left
direction.
5 Temporarily install a control box door retaining
fastener between the door and the box to
prevent the control box door from moving the
toggle switch while calibrating the machine.
6 Remove the key from the main key switch.
Insert the key into the service/bypass key
switch and turn it to the service/bypass
position.
Note: The angle sensor calibration values will not
be saved correctly unless the key switch is in the
service/bypass position.
Press and hold the enter button on the
7
ground control panel while pulling out the
ground controls red Emergency Stop button to
the on position. Hold the enter button for
approximately 5 seconds and then release it.
8 Enter sensor calibration mode by pressing the
buttons at the ground controls in the following
sequence: (plus)(enter)(enter)(plus).
9 Press the enter or previous button on the
LCD screen until DELETE PRIMARY BOOM
ANGLE SENSOR is displayed
Service Manual
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