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

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October 2018 Service and Repair Manual
Boom Components
Part No. 1268557GT Z®-135 /70 81
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 Replace the Primary
Boom Angle Sensor
Note: Perform this procedure with the machine on a
firm, level surface with the boom in the stowed
position.
1 Remove the retaining fasteners from the boom
end cover at the pivot end of the primary boom.
Remove the cover from the machine.
2 Locate the primary boom angle sensor inside
the primary boom at the boom pivot pin.
3 Disconnect the electrical connector from the
sensor.
4 Remove the angle sensor mounting bracket
retaining fasteners.
5 Remove the angle sensor and bracket
assembly. Do not lose the two springs or the
hex-shaped key.
6 Remove the sensor retaining fasteners from
the mounting bracket. Remove the angle
sensor.
Note: Note the sensor orientation on the bracket
during removal so the new sensor will be installed in
the same position.
7 Install the new angle sensor onto the mounting
bracket.
8 Install one spring, removed in step 5, into the
hex-shaped hole in the angle sensor. Install
the other spring into the hex-shaped hole in the
center of the boom pivot pin.
9 Insert the hex-shaped key into the angle
sensor.
10 Align the side of the sensor with flat area of the
boom pivot pin as shown below while holding
the bracket away from key insertion.
1 flat area
2 angle sensor
3 hex-shaped hole