Genie Z-60/34, Service Manual

Page: 80 / 183

4 - 6 Genie Z-60/34 Part No. 75861
November 2003 Section 4 • Repair Procedures
REV A PLATFORM CONTROLS
How to Adjust the Joystick
Threshold Setting
The threshold setting of a joystick is the minimum
output at which a function proportional valve can
open and allow the function to operate.
Perform this procedure with the
boom in the stowed position.
1 Pull out the red Emergency Stop button to the
on position at both the ground and platform
controls.
2 Turn the key switch to platform control. Do not
start the engine.
3 Push in the platform controls red Emergency
Stop button to the off position.
4 Do not press down the foot switch.
5 Move and hold the drive enable toggle switch in
the right position and pull out the red
Emergency Stop button to the on position.
6 When the alarm sounds, release the drive
enable toggle switch.
7 Momentarily activate the drive enable toggle
switch in the right direction 8 times.
Result: There should be a pause and the alarm
should sound 8 times indicating that the
machine is in threshold calibration mode.
8 Start the engine from the platform controls and
press down the foot switch.
9 Select a boom function joystick to set the
threshold.
10 Slowly move the joystick off center in either
direction just until the function begins to move.
11 Slowly move the joystick back to the neutral
position. Just before the function stops moving,
move the drive enable toggle switch to either
side to set the threshold.
Result: The alarm should sound indicating a
successful calibration.
12 Repeat steps 9 through 11 for each boom
joystick-controlled machine function (boom up/
down, boom extend/retract and turntable
rotate).
13 Return the joystick to the neutral position and
wait for approximately 10 seconds.
Result: The alarm should sound indicating that
the settings have been saved in memory.
Do not operate any machine
function during the 10 second
waiting time.