How To Adjust The Maximum Speed Setting - Genie Z-40/23N Service And Repair Manual

September 2016
How to Adj ust the Maxim um Speed Setti ng
How to Adjust the Maximum
Speed Setting
The maximum speed setting of a joystick and
toggle switch controls the maximum speed of a
machine function. Whenever a hydraulic cylinder,
drive motor or hydraulic pump is replaced, the
maximum speed setting should be adjusted to
maintain optimum performance. The maximum
speed settings can be changed to compensate for
hydraulic pump wear and to maintain peak
performance from the machine.
Note: There are two types of max speed settings.
High flow functions: Primary up / down,
secondary up / down and extend / retract.
Low flow functions: Platform rotate, jib rotate, jib
up / down and turntable rotate.
Note: Begin this procedure with the rotary speed
control at the platform turned fully in the clockwise
direction.
1 Turn the key switch to platform control.
2 Pull out the red Emergency Stop button to the
'ON' position at both the ground and platform
controls.
3 Do not press down the foot switch.
4 Move and hold the drive enable toggle switch
in the right direction while holding the steer
rocker switch in the right direction.
Part No. 1268528
5 When the display leaves SYSTEM READY
mode, release the drive enable toggle switch
and the steer rocker switch.
Result: The display will show FAULTS.
6 Momentarily activate the steer rocker switch in
the right direction until SETTINGS is shown on
the display.
7 Momentarily activate the drive enable toggle
switch in the right direction until VALVE AND
PUMP SETTINGS is shown on the display.
8 Momentarily activate the drive enable toggle
switch in the right direction until THRESHOLD
is shown on the display.
9 Momentarily activate the steer rocker switch in
the right direction until VALVE MAXIMUM
CURRENT is shown on the display.
10 Momentarily activate the drive enable toggle
switch in the right direction to enter VALVE
MAXIMUM CURRENT calibration mode.
High flow functions:
11 Momentarily activate one of the high flow
functions full stroke.
Result: The display will show the function,
direction and milliamps.
12 Press down on the foot switch and activate the
same function in the same direction again.
Result: Alarm sounds, continue to step 15.
Result: Alarm does not sound, continue to
step 13.
Z-40/23N, Z-40/23N RJ
Service and Repair Manual
Platform Controls
15