Genie Z80/60 Service Manual page 215

June 2011
REV B
How to Calibrate the Steer
Sensors
If a steer sensor reaches the limit of travel before a
tire is adjusted parallel to the chassis, the steer
sensor must be calibrated. This procedure will re-
establish a center position on the steer sensor.
Note: Perform this procedure with the machine in
the stowed position.
Note: This procedure will require two people.
1 Start the engine from the platform controls.
2 Press down the foot switch.
3 Choose a steer mode based on the tire that
needs alignment.
Note: If a circle-end tire cannot be aligned, press
the square-end steer mode button. If a square-end
tire cannot be aligned, press the circle-end steer
mode button.
4 Loosen the steer sensor cover retaining
fasteners. Do not remove them.
5 Rotate the steer sensor cover either clockwise
or counterclockwise to bring the tire as close to
alignment as possible.
6 Turn off the engine.
7 Press and hold the enter button
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:
Part No. 88619
on the
.
Z-80/60
Section 4 • Repair Procedures
9 Use the button to scroll through the menu
until the appropriate steer sensor is displayed.
Choose from:
RESET BLUE END BLUE SIDE STEER SENSOR
RESET YELLOW END BLUE SIDE STEER SENSOR
RESET YELLOW END YELLOW SIDE STEER SENSOR
RESET BLUE END YELLOW SIDE STEER SENSOR
Press the button to select
the button.
10 Exit the sensor calibration mode and turn the
keyswitch to the off position.
11 Rotate the steer sensor to the opposite limit of
travel.
12 Using a voltmeter set to DC voltage, probe the
back of the steer sensor electrical connector at
pins B and C.
13 Turn the keyswitch on at the ground controls.
Rotate the sensor slowly until the voltage
reading is between 2.4 to 2.5V DC. The alarm
at the ground control box should sound.
14 Turn the keyswitch to platform controls. Start
the engine from the platform controls.
15 Press down the foot switch.
16 Rotate the steer sensor cover to adjust the tire
alignment. Measure the distance between the
inside of the tire and the chassis side plate on
both sides of the axle.
17 Repeat step 14 until the tire is parallel with the
chassis.
18 Tighten the steer sensor cover fasteners.
AXLE COMPONENTS
,
.
, then press
YES
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