Perform the Function Check as follows
From the ground control panel with no load in the platform:
Check that all guards protecting switches are in place
Operate all functions
Ensure that all machine functions are disabled when the Emergency Stop Button is activated.
Check that auxiliary descent, lift down operates with engine off and power on.
NOTE: Be sure the platform extension is retracted before lowering.
From the platform control console:
Ensure that the control console is firmly secured in the proper location
Ensure that all guards protecting switches are in place
Operate all switch functions, drive/lift mode select switch, and horn button.
Check the high drive cut out switch by raising the platform beyond the preset high drive speed cutout height of 90 - 96 in (2.3 - 2.4 m) and ensure the high drive speed cuts out.
. Ensure that all machine functions are disabled when the Emergency Stop Button is pushed in.
Ensure all machine functions stop when function control is released or when joystick trigger is released.
Ensure that all LEDs in the control box are working properly.
Check that the platform extension extends and retracts properly
With the platform in the stowed position:
Drive the machine on a grade, not to exceed the rated gradeability, and stop to ensure the drive motor brakes hold.
Check the tilt indicator light to ensure proper operation.Check the tilt indicator light to ensure proper operation.
Source: MaintainX (Community Member)