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7. INSTRUCTIONS FOR USE
7.1 Start Up
The unit should only be used, opened and repaired by specialized personnel only.
It is prohibited to use the pump if it is submersed in fluid, in dangerous environments or explosive/flammable areas unless
pre-agreed with supplier and appropriate safety/protection measures have been put in place.
Use gloves and safety glasses as advised in the grease lubricant safety data sheet.
DO NOT use aggressive lubricants on the NBR seals, if in doubt consult DropsA Spa technical office who can offer advice on
lubricants and provide a pre-approved list of greases.
Ensure proper precaution to keep the pump clean and avoid and potential health hazards.
Always use suitably pressure rated tubing for the lubrication system.
7.2 Action to be taken before start-up.
Check the integrity of the pump.
Refill the tank with suitable lubricant.
Check that the pump is at working temperature and that there are no air bubbles in the pipes.
Check that the electric connection has been carried out correctly (CEI 64/8, IEC 364).
Ensure that the pump is properly connected to the control panel.
7.3 Use
Check the data sets imposed.
Press the start button on the machine to which the Sumo pump is connected.
Check pump start-up.
Check that the machine is adequately lubricated (if there are still some doubts about its correct functioning you can
contact the Dropsa S.p.A Technical Office and request a test procedure).
8. PROBLEMS AND SOLUTIONS
Below is a diagnostic table showing the main faults, the probable causes and the possible solutions.
In the event of doubts and/or problems which cannot be solved, do not proceed to look for the fault by dismantling parts of
the machine, but contact the Dropsa Technical Office.
DIAGNOSTIC TABLE
FAULT
The pump does not deliver grease or
does not deliver the correct amount of
grease
The pump does achieve required
pressure or does not maintain its
operating pressure.
CAUSE
The grease level is below minimum.
The solenoid valve on the inlet of the
pump does not vent.
The fittings are leaving/loose.
Regulation of air inlet pressure.
Internal Check valve is damaged or
contaminated.
SOLUTION
Add more grease into the reservoir without
surpassing the MAX level.
Verify it the solenoid vents. Vent the
solenoid manually and monitor if the
grease flows out.
Tighten the fittings and check for leaks on
all fittings.
Adjust the air pressure on the inlet of the
pump taking into account the pressure
ratio.
Clean or change the valve shown in kit
3133391.
