Terex Genie Z-135/70, Service And Repair Manual

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October 2018 Service and Repair Manual
Jib Boom Components
Part No. 1268557GT Z®-135 /70 59
Note: Use the following chart to identify the
description of each LCD screen control button used
in this procedure.
Plus Minus Previous Enter
Digital levels with alternate zero function:
1 Prepare the digital level by placing it vertically
on a known surface that is perpendicular to
gravity. Zero out the level with the alternate
zero function.
Note: When the level is calibrated correctly, it
should read 0° on a vertical surface.
Digital levels without alternate zero function:
Note: If your digital level does not have an alternate
zero function, it will read 90° on a vertical surface.
During calibration, the measured value will need to
be subtracted from 90 degrees to get the correct
number to enter into the system.
2 Raise the jib boom to a slightly less than
horizontal position.
3 Push in the ground controls red Emergency
Stop button to the off position. Do not turn the
key switch to the off position.
4 Open the ground control box.
Before serial number 321:
5 Locate the 2 pin connector in the lower left
hand area of the ground control box.
6 Remove the connector plug and insert a
jumper wire between the two pins of the
connector.
After serial number 320:
7 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.
8 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.
All models:
9 Remove the key from the main key switch.
Insert the key into the bypass/recovery key
switch and turn it to the bypass position.
Note: The angle sensor calibration values will not
be saved correctly unless the key switch is in the
bypass position.
10 Press and hold the enter button on the 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.