Maintenance; General Warnings; Maintenance Table; Check Oil Level - DVP LC.2 Instrucciones De Funcionamiento Y Mantenimiento

6

MAINTENANCE

6.1

GENERAL WARNINGS

For good maintenance:
• Immediately verify the causes of any malfunctions (excessive noise, overheating, etc.);
• Pay particular attention to safety devices;
• Make use of all documentation provided by the manufacturer (instruction manuals, wiring diagrams, etc.);
• Use only appropriate tools and original spare parts.
In the event of a failure to understand the information or procedures contained in this chapter, contact D.V.P.
Vacuum Technology s.p.a. for clarification before proceeding.
HAZARD
Do not perform any type of operation, modification and/or repair of any kind, except for those
listed in this manual.
Only trained or authorised personnel have the necessary expertise to perform tasks with the
technique appropriate for intervention.
HAZARD
All maintenance operations must be carried out with the pump disconnected from any power
sources. Do not operate the pump until it has reached a temperature that is not dangerous for
the operator.
HAZARD
If pump maintenance has been performed in a manner inconsistent with instructions, with
non-original spare parts or otherwise so as to impair its integrity or modify its characteristics,
D.V.P. Vacuum Technology s.p.a. will be released from any liability relating to the safety of
persons and malfunction of the pump.
6.2

MAINTENANCE TABLE

The following table shows all required periodic operations to maintain pump efficiency.
Check the oil level

Change oil

Clean motor fan guard and clean pump
Change the air exhaust filter
Change vanes
Shorter maintenance intervals may be required according to operating conditions (high temperature of intake gases,
intake gases containing condensable vapours, etc.).
6.2.1

CHECK OIL LEVEL

Check that oil level is at mid-range of the oil sight glass. If not, see instructions in the following paragraph.
Check oil conditions. When dark or cloudy, oil has been contaminated by intake substances and must be changed.
6.2.2 CHANGE OIL
Change oil as follows:
• let the pump run with closed suction intake for about 10 minutes first so oil will become thinner;
• stop the pump and disconnect it from the mains;
• undo the oil filler plug;
• get a container large enough to hold all oil and open the oil drain plug;
• drain out all oil;
• close drain plug and fill in fresh oil through the filler plug up to mid-range on the oil sight glass;
• close the oil filler plug;
8702036 – 12/04/2016 – R.7
Operating and Maintenance Instructions
LC.2 – LC.4 – LB.5 – LB.6 – LB.8 – LC.12 – LC.20
OPERATION TYPE
15
OPERATOR
FREQUENCY
QUALIFICATION
24 h
500 h
1000 h
2000 h
10000 h
EN
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