Test The Primary Boom Angle Sensor - Z-135/70 And Zx135/70; Test The Primary Boom Angle Sensor - Genie S-40 Maintenance Manual

April 2016
10 Lower the secondary boom to 20°.
Result: The reading at the display and digital
level is within ± 2° of each other and of 20°.
Result: The reading at the display and digital
level is greater than ± 2° of each other and of
20°. The secondary boom angle sensor must
be calibrated. Refer to Repair Procedure in
the appropriate Service and Repair Manual for
your machine, How to Calibrate the
Secondary Boom Angle Sensor.
11 Fully lower the secondary boom until it stops
at approximately -3.5°.
Result: The reading at the display and digital
level is within ± 2° of each other and of -3.5°.
Result: The reading at the display and digital
level is greater than ± 2° of each other and of
-3.5°. The secondary boom angle sensor must
be calibrated. Refer to Repair Procedure in
the appropriate Service and Repair Manual for
your machine, How to Calibrate the
Secondary Boom Angle Sensor.
Part No. 1268489
Quarterly Maintenance Procedures
Q-27
Test the Primary Boom Angle
Sensor - Z-135/70 and ZX135/70
Genie specifications require that this procedure be
performed quarterly.
A properly functioning primary boom angle sensor
is essential to safe machine operation. The ECM at
the ground controls (TCON) monitors the position
and angle of the primary boom using the signal
from the primary boom angle sensor. The primary
boom angle sensor signal is used to control the
ramping of the primary boom, limiting the speed of
the primary boom to 2.3 feet / 0.7 meters per
second.
Note:The turntable level sensor and secondary
boom angle sensor must be tested before starting
this procedure. Refer to Maintenance Procedures,
Test the Turntable Level Sensor and Test the
Secondary Boom Angle Sensor.
Note: A digital level will be required to perform this
procedure.
Note: A kit is available through Genie Product
Support (Genie part number 58351). This kit
includes a digital level with a magnetic base and
cable harnesses.
Note: A properly calibrated digital level is essential
to proper machine calibration. Refer to the
manufactures calibration information.
S Booms • Z Booms
Maintenance Manual
67