M880 ALL EN 2.7.2.docx
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6. PREVENTIVE MAINTENANCE
Before performing any maintenance operation, turn off the power to both, the receiving unit
and the machine, and remove the battery from the transmitter.
Do not expose to heat sources
Avoid prolonged exposure to direct sunlight
Do not wash the device with water under pressure or dip it in water
Avoid contact with oil or solvents
If the device has been opened for any reason, make sure all the seals and gaskets are in place
when closing
When cleaning it, do not use alcohol or solvents, as they might damage the components and the
housing.
6.1. Routine maintenance to be carried out by the operator
Periodically clean the outside of the receiving and transmitting units. Dirt deposits could hinder the
functioning of buttons, toggle switches and manipulators.
Apply special care to the STOP button, by keeping it clean and making sure it works effortless.
Remove any traces of rust from the battery contacts.
Check the casing and the components for cracks or apparent damages.
All rubber parts, buttons, seals and gaskets should show no sign of tearing.
Damaged components should be immediately replaced to prevent humidity or dirt from penetrating
and jeopardizing the safe operation of the radio remote control.
6.2. Maintenance and internal checks
After every year of use, we recommend carrying out a general inspection of the radio remote control
(to be performed by qualified personnel).
Open the housings of the transmitting and receiving units and make sure:
that the gaskets are in good shape
that the cable clamps are efficient
that the connection terminal screws and the connector couplings are tight
that the electronic boards are securely fastened
that the fastening screws of all components are tight
Although IP65 units are hermetically sealed, dust and humidity may accumulate over time when
working in particular conditions. Carefully remove any foreign matter.
When closing the transmitting unit, apply special care to the casing’s sealing, in order to prevent the
infiltration of humidity.
Power on the device, being careful not to touch any live parts in the receiving unit, and perform the
following tests:
Check the functioning of all the controls.
Verify that the STOP circuit intervenes correctly. By pressing the STOP button during operation,
the relay contacts A and B of the E-STOP circuit must open.
Any broken parts must be replaced with original spare parts, in order to keep the characteristics of
the radio remote control unchanged. See the list of parts that can be replaced in Chapter 13.