Page 31
Mast Seres - Servce & Parts Manual
May 2021
Secton 10 - Mantenance
Semi-annually Inspections
Inspections that are to be performed every 6 months or every 500 hours.
1 - Test the Platform Overload System (if equipped)
Tools will be required to perform this procedure.
Dealer service will be required to perform this procedure.
Test weight will be required for this procedure.
This procedure is to be performed every 6 months or every 500 hours, whichever comes first or when
the machine experiences an overload fault.
Testing the platform overload system regularly is essential to safe machine operation.
Continued use of an improperly operating platform overload system could result in the system not
sensing an overloaded platform condition. Machine stability could be compromised resulting in the
machine tipping over.
Perform this procedure with the machine on a firm, level surface�����
Turn the key switch to platform control and pull out the red Emergency Stop button to the ON
position at both the ground and platform controls.
Determine the maximum platform capacity.
Using a suitable lifting device, place an appropriate test weight equal to the maximum platform
capacity in the center of the platform floor.
Result:
The overload alarm at the platform controls should not sound, indicating a normal
condition.
Result:
The overload alarm at the platform controls sounds. Calibrate the platform overload
system. See Calibration section for instructions.
Add an additional weight to the platform not to exceed 10% of the maximum rated load.
Result:
The overload alarm at the platform controls sound, indicating a normal condition.
Result:
The overload alarm at the platform controls does not sound. Calibrate the platform
overload system. See Calibration section for instructions.
Test all machine functions from the platform controls.
Result:
All platform control functions should not operate.
Turn the key switch to ground control.
Test all machine functions from the ground controls
Result:
All ground control functions should not operate.
Lift the test weight off the platform floor using a suitable lifting device.
Result:
The overload alarm at the platform controls should not sound, indicating a normal
condition.
Result:
The overload alarm at the platform controls sounds. Calibrate the platform overload
system. See Calibration section for instructions.
Test all machine functions from the ground controls.
Result:
All ground control functions should operate.
Turn the key switch to platform control.
•
•
•
1.
2.
3.
•
•
4.
•
•
5.
•
6.
7.
•
8.
•
•
9.
•
10.
