Maintenance

Warning:
All repair and service work has to be exclusively performed by qualified service technicians as live parts may be exposed when opening and / or removing coverings. Touching live parts may cause electric shock.

Warning:
The grandMA3 full-size, the grandMA3 light, and their CRV versions have an air intake filter on the back.
Do not wash the filter.
Clean it using a vacuum cleaner only.

	Important:
	The intervals between maintenance may differ depending on the frequency of transport and the operational environment.

Disconnect power supply before cleaning;
Clean the surface using dry cloth only;
Clean the wrist rest using a damp cloth only;
Do not use liquid cleanser or compressed air;
Do not use solvent;
Check if the ventilation holes are blocked;
Depending on the environment, we recommend to professionally clean the device once a year.