Interpump W201 - Operation and Maintenance; Start-Up Procedure; Maintenance Schedule; Troubleshooting Guide

9
After the  rst 50 hours Every 500 ore Every 1000 ore (mean period. Reduce for severe operating conditions)
Oil change Oil change Checking/replacement: Valve assemblies, pumping seals.
START-UP
- Replace the RED transport cap with the cap with a built-in dipstick.
- Check the oil level through the window or using the dipstick and, if necessary, top it up.
- Make sure that all  ttings are securely tightened and that the pump feed is open.
- To expel the air present in the pump and make it easier to  ll, we recommend you detach the delivery
pipe from the pump or keep the port/s open without any nozzles  tted.
- Start the pump for 5/10 seconds until the liquid  ows out smoothly from the delivery pipe or applian-
ces; if this does not happen, stop the pump and repeat the operation after a 10-second pause.
- Complete the connections and/or install the nozzles.
- Calibrate or regulate the valves; to prevent tampering, apply lead seals where possible, or paint the
regulating registers so that any tampering can be readily detected.
- All INTERPUMP pumps are tried and tested prior to shipment, the installation engineer is, however,
obliged to test the complete system for an adequate time to check for leaks, overheating, deterioration
in performance or calibration, etc.
MAINTENANCE
TROUBLESHOOTING GUIDE
At start-up, the
pump makes
no noise
• The pump is not primed and is operating dry, without lubricant.
• The water supply is off.
• The valves are blocked.
• The delivery line is closed and does not let the air  ow out of the pump.
The pipes
pulsate in
an irregular
fashion.
• There is Insufficient air suction and/or supply.
• Bends, elbows,  ttings on the feed line are slowing down the  ow of the liquid.
• The feed  lter is dirty or too small.
• The booster pump, if installed, is providing an insufficient pressure and/or capacity.
• The pump is not primed due to an insufficient head, the delivery pipe closing during
priming and/or a valve sticking.
• Worn pressure valves and/or seals and/or transmission problems.
• The pressure regulating valves are not working properly.
The pump
does not give
the rated capa-
city and makes
excessive
noise.
• There is an insufficient supply and/or the number of revolutions is less than the rated
value.
• Excessive leaking from the pressure regulating valve and/or the pressure seals.
• Worn valves.
• Cavitation due to undersized feed pipes and/or  lter, insufficient capacity, high water
temperature, clogged  lter.
The pressure
supplied by
the pump is
insufficient.
• The port (nozzle) is too large or is worn.
• Excessive leaking from the pressure seals.
• The pressure regulating valve is not working properly and/or the valves are worn.
The pump
overheats:
• The pump is working at an excessive pressure and/or the number of revolutions is
higher than the rated value.
• The oil in the sump of the pump is not at the required level or is not of the recom-
mended type.
• The belt is too tight, the joint or the transmission is not aligned.