VARISCO M Series Instructions For Use And Maintenance Manual

VARISCO M Series Instructions For Use And Maintenance Manual Manual pdf 16 page image

Varisco S.p.A.Z.I. Nord - Terza Strada, 9 - 35129 PADOVA – ITALYTel.+39.049.8294111 Email: export@variscospa.comFax+39.049.8076762 Web: www.variscospa.com168.4 LUBRICATION8.4.1 IN GENERALThe Nova Rotors progressing cavity pump is supplied with lubricant for about 3250 working hours.In case of replacement of parts involving lubrication, it is advisable to re-lubricate. To this purpose,see the table below:Universal joints: VN 2461 CChrome steel joints (Universal joint and Pin joint): Agip SM2 - Esso Beacon Q2AISI stainless steel joints (Universal joint and Pin joint): Agip SM2 - Esso Beacon Q2Bearings: Agip MU3Rubber stators for food: Agip vaseline 1718Steel Universal Joints Molycote VN 2461 CChromed steel, universal joint and pin joint Agip SM2 - Esso Beacon Q2Stainless steel, universal and pin joints Agip SM2 - Esso Beacon Q2Bearings Agip MU3Food grade stators Agip vaseline 17188.4.2 BEARINGSThe male shaft bearings are greased at NR. In case they were removed, their seat shall be filled withgrease according to the table above.8.4.3 PROPELLER SHAFT JOINTSPin joints with sleeve are to be periodically lubricated.Moreover, every time parts were replaced with original spare parts, their grease shall be replaced.IMPORTANT: The pumps that uses sleeves over joints for food are supplied with food-compatiblegrease.8.4.4 MOTOR VARIATORSee Service Manual8.5 MALFUNCTIONINGBelow you can find a synthetic tableMalfuntioning References:A The pump does not work F The pump stopsB The pump does not intake G Faulty statorC Wrong delivery H Faulty rotorD Uneven flow I The seal leaksE Noisy pump J Low delivery pressureA B C D E F G H I J POSSIBLE CAUSE1 X X New stator and rotor are stuck together2 X X Faulty electrical contact3 X X X X X Excessive delivery pressure4 X X X X Unknown matter in the pump5 X X X X X High temperature, the stator squeezed6 X X X Stator of wrong material. Check the order7 X X X X X Product granulometry too high.8 X X X X X X X The product sediments when the pump is stopped