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SMP For Slurry Pump

OBJECTIVE

The purpose of this work instruction is to explain the procedure for carrying out Overhaul of Slurry Pump. Slurry Pump The details of the Slurry Pump are as follows Make: Shijiazhuang Kingda Pump Industries Ltd.; Model:200ZGB; Capacity: 160 cum/hr;Max Working Pressure: 6kg/sqcm; Head: 60 Meter; Motor Speed: 2950RPM

DETAILED INSTRUCTION

O v e rh au l t o b e d on e a s p e r C h e ck li s t Before commencing dismantling operations, ensure that the following tools and tackles are available: A crane / chain pulley block suitable for handling the weight of pumping unit. A selection of ring and open-ended spanners in Metric sizes. Eyebolts in Metric sizes. Hardwood and metal packing blocks. Miscellaneous tools including a set of Allen keys, drills, pin drivers, files etc. Extractor / puller for bearing and coupling..After a long service, wear will occur in parts of the pump necessitating the renewal of the parts. Those most likely to be affected are impeller, Wear rings, bearings, and sleeves.

Dismantling

Before dismant ling, make sur e the m otor is discon necte d. The su ction and disc harge shu toff v alves m ust be cl osed. The p ump casi ng must have coole d down t o ambie nt temperature. The p ump casi ng must be em pty and not u nder pressur e. Detac h all auxil iary supply pipe lin es. Rem ove cou pli ng gua rd. Remov e coupl ing ha lf from t he pum p shaft. Refer fi g. no. 1 Pull o ut bear ing bracke t with di scharge co ver and comp lete r otor(assembled unit). If th e pump ha s been i n oper ation f or a lo ng time some par ts may be difficult to remove. In this case use a penetrating oil or suitable pull-off device. Loosen & remove impeller Lock nut. Remove impeller from pump shaft. Refer fig. no. 2

Dismantling the Bearing Unit

Remove bearing covers and gaskets by unscrewing of hex. Bolt. Refer fig. no. 3 Fasten the bearing unit firmly to the bench vice refer fig. no. 4. Strike the pump shaft end with a soft hammer. Refer fig. no. 4 Fasten the shaft (with bearings) to the bench vice and detach bearings from shaft with a bearing puller. Refer fig. no. 5