Page 42
Mast Seres - Servce & Parts Manual
May 2021
Calibration Instructions
The Platform Overload Sensing System may require calibration in the event of a malfunction or
after the replacement of an Overload System component. Proper and correct calibration of the
Overload system is critical for normal and trouble-free machine operation. Read and understand the
instructions before beginning the calibration process.
Calibrate Tilt Sensor
Park the machine on flat level surface.
Note:
Calibrating the level sensor requires that the machine be perfectly level on both the X
and Y axis. An inclinometer should be used when ensuring level. Machine power must
be on.
Using the diagram below, locate the “SET ZERO” button located on the side of the sensor. Press
and hold the “SET ZERO” button until the LEDs alternate red and green flashes. Release the
button.
Press the “SET ZERO” button three times. The LEDs will turn off then only the green LED will
illuminate, calibration is complete.
Calibrate Overload System
Note:
The platform
will lift automatically
once the calibration has been initiated. Be sure that there
are
no overhead obstructions
when choosing a location on which to calibrate the overload
system.
Note:
If a safety concern arises anytime during the automated lift/lower sequence, press the
Emergency Stop switch immediately. The procedure can be restarted once it is safe to do so.
Empty Platform Sequence
Park the machine on flat level surface. Machine power must be on. Ensure that the platform is
completely empty and there are no ‘extra’ items attached to the platform or guard rails that may
add weight to the platform beyond that of an empty platform.
Turn the key switch to the Platform position. This will prevent the platform from lifting during the
next step.
Using the lower Lift Switch (located on the lower control panel) perform the following sequence
of up and down movement of the toggle switch. Do not operate the switch so slowly as to hold
the switch more than 2.5 seconds or the sequence will be terminated.
Down 5 times
Up 1 time
Down 5 times
Up 1 time
1.
2.
3.
1.
2.
3.
a.
b.
c.
d.
Secton 13 - Calbratons
Calibration Instructions
