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Checklist C Procedures
C-1
Test the Platform Overload System (if
equipped)
DINGLI requires that this procedure be
performed every 500 hours or six months,
whichever comes first or when the machine
fails to lift the maximum rated load.
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.
The platform overload system is designed to
prevent machine operation in the event the
platform is overloaded. Models equipped with
the platform overload option are provided with
two additional machine control components:
the overload pressure sensor and the platform
height sensor.
The overload pressure transducer, located at
the valve of the lift cylinder, is used to
determine the pressure inside the lift cylinder.
The platform height sensor, located at the
steer end of the chassis, battery side, is used
to determine the height of the platform.
The overload pressure transducer and the
platform height sensor provide the GCON with
necessary information to determine the load in
the platform.
Note: The overload system will not measure
loads at or below the height of the Down Limit.
Note: Perform this test from the ground with
the platform controller. Do not stand in the
platform.
OPERATOR'S MANUAL with Maintenance Information
the machine on a firm, level surface.
1
Turn the key switch to platform controls.
Pull out the platform and ground red
Emergency Stop button to the on position.
2
Determine the maximum platform capacity.
3
Using a suitable lifting device, place an
appropriate test weight equal to the
maximum platform capacity in the center
of the platform floor. Raise the platform.
⊙ Result: The overload alarm not sounds
during the whole trip, indicating a normal
condition.
¤ Result: The overload alarm sounds during
the whole trip. Calibrate the platform
overload system.
4
The platform should lower to the stowed
position
5
Add an additional weight to the platform
not to exceed 20% of the maximum rated
load. Raise the platform.
⊙ 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.
6
Test all machine functions from the
platform controls.
⊙ Result: All platform control functions should
not operate.
85
Maintenance
Perform this procedure with
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