8/53 IMET - M550 ALL1-EN
4. 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 with water under pressure or dip the device 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
To keep you radio remote control in good working order, regularly clean it using a brush and a damp
cloth. Do not use alcohol or solvents: they might damage the components and the casing.
4.1. Routine maintenance to be carried out by operator
Periodically clean the outside of the receiving and transmitting units. Dirt deposits can hinder the
functioning of buttons, toggle switches and manipulators.
Apply special care to the STOP button, keeping it clean and making sure it works with no difficulty.
Remove any traces of oxidation 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.
4.2. Maintenance and internal checks
After every year of use we recommend carrying out a general inspection on 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 order
• 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 intervened correctly. By pressing the STOP button, during operation,
relay contacts A and B, of the E-STOP circuit must be opened
• Any broken parts must be replaced with original spare parts, in order to keep the characteristics of
the radio remote control unchanged. See list of parts that can be replaced in Chapter 11