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8.2.14 Overload control device check.
According to the periodicity described in the maintenance table, check the operation of the platform
overload control system.
The work platform support incorporates a sensor that detects the load present on the platform. If the
rated load is exceeded by 20% of the rated load, and the platform is not in the access position, the
overload alarm is activated and the machine is completely blocked. To resume working with the machine,
it is necessary to completely remove the overload.
To verify its operation:
- Apply the nominal load to the platform (see TECHNICAL DATA table) and check that the machine
works normally;
- With the access position (all arms closed) load an overload of 20% and check that the overload
alarm is activated and the boom up, jib up and telescopic boom extension commands are inhibited;
- Remove the excess load and check that the machine comes out of the alarm condition and that
the previously inhibited commands are available again.
If the operator finds a defect that can generate dangerous situations or suspects that there may be
malfunctions, the machine must be placed in a safe condition (isolate it, apply a sign) and report the
anomaly to the employer and to contact an authorized service centre.
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