MAINTENANCE
Ordinary maintenance
The replacement of the filters and of the oil of the vacuum pump has to be carried out by skilled personnel.
It is advisable that the maintenance service is made by an authorized centre in order to make sure that the warranty
of the product is not interrupted. The unit registers service operations in order to monitor the working hours of the
filters and the vacuum pump oil , the software version installed in the unit and the data bank version (if available in
your model) These counters have to be reset by the service personnel.
Filter replacement
Replace the filter once a year at least or when the unit warns you that a filter change is required .
Avoid the refrigerant to contaminate atmosphere. Recover the gas residuals left in the charging
hoses and in the filter. Replace with original filters only.
ATTENTION! The filters have to be mounted according to the flow direction indicated by the arrow
signed on the filters itself.
Oil replacement of vacuum pump
1
Oil drain screw plug
2
Sight glass
3
Air inlet
4
Oil filling cap
5
Exhaust fittings
6
Vacuum pump information plate
Replace the oil in the vacuum pump once a year at least or when the unit warns to change the oil
-
Check the oil level by means of the relevant sight glass (2). The level of the oil (when the pump is not
working) should be at the middle of the sight glass.
-
In order to replace the oil, remove the screw plug (1) switch on the pump for few seconds (max 5-10
seconds!) drain the oil in a container. Screw the oil drain plug in position again and add new oil by means of
the cap (4) until you reach the normal level (middle of the sight glass) Use specific hydraulic oil only to fill
into the vacuum pump! Put the oil-filling cap (4) in position and switch on the pump for a final check.
-
IMPORTANT: the exhaust oil drained from the pump is a special waste and as such, it has to be scrapped
according to the regulations in force.
Warning: switch off the unit and unplug from electrical socket before operating on the vacuum pump.
Electrical shock hazard!
32
-
Replace the oil of the vacuum pump every 120 working hours, or, at least, once a year. By reaching the max
working time the unit will display the message “SERVICE REQUIRED to inform that it is necessary to perform
an ordinary maintenance service on the unit
www.diagtools.eu, [email protected], Pernavas 43A, Riga, Latvia, LV-1009, +37129416069
