Checklist C Procedures; Test The Platform Overload Pressure Transducer And Platform Height Sensor (If Equipped) - Genie GC-1530 Service Manual

Section 3 • Scheduled Maintenance Procedures

Checklist C Procedures

C-1
Test the Platform Overload
Pressure Transducer and
Platform Height Sensor
(if equipped)
Genie specifications require that this procedure be
performed every 500 hours or six months,
whichever comes first OR when the machine fails
to lift the maximum rated load.
Testing the platform overload pressure transducer
and platform height sensor regularly is essential
to safe machine operation. Continued use of an
improperly operating platform overload pressure
transducer or platform height sensor, could result
in the system not sensing an overloaded platform
condition. Machine stability could be compromised
resulting in the machine tipping over.
Note: Perform this procedure with the machine on
a firm, level surface the is free of obstructions.
1 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
2 Raise the platform 7 to 8 feet / 2.1 to 2.4 m.
3 Lift the safety arm, move it to the center of the
scissor arm and rotate down to a vertical
position.
4 Lower the platform onto the safety arm.
Crushing hazard. Keep hands
clear of the safety arm when
lowering the platform.
5 At the ground control, turn the key switch to the
off position and push in the red Emergency
Stop button to the off position.
3 - 28
Pressure Transducer
6 Working at the barrel end of the lift cylinder,
follow the pressure transducer cable down the
scissor stack to its end point, at the chassis
deck.
7 Using the positive post of a multimeter probe,
securely fit the post into pin C of the pressure
transducer cable rubber boot. Refer to the
illustration below.
8 Using the negative post of a multimeter probe,
securely fit the post into pin B of the pressure
transducer cable rubber boot. Refer to the
illustration below.
9 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position.
10 Using the multimeter, measure the voltage
reading of the pressure transducer at pin
C and B.
GS-1532, GS-1932, GS-2032, GS-2632, GS-2046,
GS-2646 and GS-3246
Result: The voltage reading of the pressure
transducer is between 1V and 5V. The pressure
transducer is functioning properly.
Result: The voltage reading of the pressure
transducer is between 0V and 1V. The pressure
transducer is not functioning properly. Replace
the pressure transducer. Refer to Repair
Procedure 9-9, How to Remove the Pressure
Transducer (if equipped).
GS-30 • GS-32 • GS-46 • GS-47
June 2012
Part No. 228901