EN
Operating and Maintenance Instructions
DC.16DEX
15
8702042 – 01/10/2014 – R.4
www.dvp.it
6.2.2
CHANGE OIL
HAZARD
Before carrying out the operations listed below, isolate the pump from the operating system by
means of an isolation valve (required in 4.8 "System User" of this manual) and from the power
supply, then clean the surrounding area from the possible presence of a potentially explosive
atmosphere (ATEX) due to the opening of the oil filler cap.
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 (see 3.3 “Dimensions and characteristics” of this manual) 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;
•
Remove all oil spills from the pump and/or floor;
•
connect to mains again and verify correct rotation direction of the pump (see 4.9.2 “Wiring” of this manual);
•
let the pump run with closed intake for a few minutes and then, if necessary, top up oil if necessary.
HAZARD
Wear appropriate personal protection equipment to perform said operations.
HAZARD
Comply with local regulations regarding the collection and disposal of used or polluted oil.
6.2.3
CHECK AND CLEAN GAS BALLAST
HAZARD
Before carrying out the operations listed below, isolate the pump from the operating system by
means of an isolation valve (required in 4.8 "System User" of this manual) and from the power
supply, then clean the surrounding area from the possible presence of a potentially explosive
atmosphere (ATEX) due to the opening of the ballast.
Fully unscrew gas ballast and clean it thoroughly with compressed air. Change gasket if damaged.
6.2.4
CLEAN MOTOR FAN GUARD AND CLEAN THE PUMP
HAZARD
The cleaning of the fan motor and pump protection devices is needed to remove dust deposits
that
might
otherwise clog or
cover rapidly the
cooling
surfaces, thus
causing the
deterioration of the safety level of the pump
This can be done using compressed air and a dry cloth.
Do not use fluids or substances other than those indicated.
HAZARD
Wear appropriate personal protection equipment to perform said operations.
6.2.5
CHANGE VANES
HAZARD
Before carrying out the operations listed below, isolate the pump from the operating system by
means of an isolation valve (required in 4.8 "System User" of this manual) and from the power
supply, then clean the surrounding area from the possible presence of a potentially explosive
atmosphere (ATEX) in the pump itself.
HAZARD
During the replacement operation of the palette, check for the presence of traces of rust on
metal parts that could be due to aluminium thermal reactions.
The instructions for replacing vanes are available upon request.