Related Manuals for Sam ZM 375/00
Summary of Contents for Sam ZM 375/00
- Page 1 ZM SPLIT CASING PUMPS OPERATION & MAINTENANCE MANUAL SAM TURBO INDUSTRY PVT LIMITED NEELAMBUR, COIMBATORE-641062, INDIA PHONE: +914226193555, E-MAIL: service@sampumps.com...
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Page 2: Table Of Contents
WARRANTY We warranty that the pump supplied by us is free defective material and faulty workmanship. this warranty holds good for a period of 12 months from the date of commissioning of the equipment or 18 months from the date of dispatch from our factory, whichever is earlier. -
Page 3: General
GENERAL “ZM” pumps are centrifugal single stag and double suction radial impeller . The complete range of “ZM” pumps are covered by 6 Power Series, thereby, reducing inventory and achieving maximum interchangeability of parts. Pumps when properly installed and given proper care-in operation and maintenance should operate satisfactorily for a long period.If equipment is to be stored for long periods of time (six months or more), the following precautions should be taken to insure that the equipment remains in good condition. -
Page 4: Description Of Pump
Constructional Details SAM ZM are single volute with axial split casing. Especially Fan pump (with straight & staggered vane) for stock feed, stock circulation, centri-cleaner, water and fire-fighting application. The wide passages in the Suction Zone of the impeller with less number of vanes and non-clogging design helps to handle stocks &... -
Page 5: Erecting The Pump
ERECTING THE PUMP: The assembly of the pump with the driver on a common base plate is done in our works, the whole set will be carefully mounted and aligned. It is necessary to check once more the alignment of the coupling before putting the pump into operation. -
Page 6: Laying And Connecting Pipes
Leveling the Base plate, aligning the Coupling Level accurately the base plate which carries the complete set with the aid of a spirit level. Place metallic packing between the base plate and foundation close to the foundation bolt holes. To prevent sagging of the base plate, place metallic packing if required - also between the foundation bolt holes. - Page 8 Generally the suction line is larger than the pump suction nozzle, and eccentric reducers should be used. Eccentric reducers are not necessary for bottom suction pumps. If the liquid supply is located below the pump centre line, the reducer should be installed with the straight side up.
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Page 9: Lubrication
LUBRICATION The bearing housing has been emptied of oil prior to shipment and must be refilled before starting. During operation, the oil level may slightly fall. Refilling during operation should always be done through the cap hole of the constant level oiler in the plastic cap there must always be oil. When the pump is put into operation after prolonged shut-down, flush bearings and bearing housing with petrol or benzol in order to remove impurities, during the flushing procedure rotate the shaft slowly. - Page 10 3.Once lower sub assembly is fixed, tighten locknut to ensure that CLO is 90° with respect to ground. 4.Fill oil in pump with a can. Oil should be filled either by opening breather of pump or from the lower sub assembly. (Ref. Fig.4) 5.Once initial oil level is maintained in pump, take upper sub assembly, reverse, it and put it oil in dome through the hole by using a suitable funnel (3/4 full).
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Page 11: Starting And Stopping
STARTING AND STOPPING ; After coupling alignment and before bolting the coupling halves, check the pump direction of rotation. Pump rotation is indicated by an arrow attached to the casing assembly STARTING 1. Pump shaft should rotate freely by hand. 2. - Page 12 All centrifugal pumps have limitations on the minimum flow at which they should be operated. The most common limitation is to avoid excessive temperature buildup in the pump because of absorption of the input power into the pumped fluid. Other less understood reasons for restrictions are: 1.
- Page 13 7. Make sure the stuffing box bushing (if furnished) is set at the bottom of the box. 8. Insert rings of packing and tap lightly to seat against bushing. Be sure rings are of the proper size an length and installed with cuts staggered. Lantern ring must be installed opposite sealing water connection.
- Page 14 Running fits between wear rings is given under the pump specifications. When these clearances are doubled, or the capacity of the pump is reduced by 5 to 10%, the rings should be renewed. The purpose of these rings is to keep internal bypassing of the liquid being pumped to a minimum.
- Page 15 8 .Lift upper casing (Part no. 105.01) straight up until clear of the impeller. 9. Place slings around the shaft near the bearing housings and lift rotating element from lower casing 11. Place rotating element in a clean, dry work area for necessary disassembly. Case wear Rings will be loose on assembly.
- Page 16 shoulders square and free of nicks. Measure OD of impeller hub or impeller wear rings and ID of casing wear ring. Compute diametric clearance (ID minus OD). Examine impeller passages for cracks, dents or embedded material. Examine shaft sleeves for wear. ZM Pump Assembly of rotor &...
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Page 17: Sectional Drawing
11.Fix the gasket on the bottom casing , mount the top casing , fit the casing steady pin in that location. Top and bottom casing half‟s with help of casing joining bolts. Check the pump hand free rotation. 12.Fix the gland packing and lantern rings. After that split gland to be fitted with pump. - Page 18 Adjustment of Impeller Center Position After completion of the assembly the impeller must be in the centre of the pump volute. This position is achieved with the aid of the sleeve nuts (part 921). After adjustment the sleeve nuts are firmely tightened on both sides and secured with keys and circlips.
- Page 19 PART NO PART NAME PART NO PART NAME 105.01/105.02 CASING (TOP & BOTTOM) *507 THROWER * 211 PUMP SHAFT *524 SHAFT SLEEVE *234 IMPELLER *S526 CENTERING SLEEVE *320 ANG.CON.BALL BRG *551 BEARING SPACER *321 BALL BEARING CONSTANT LEVEL OILER BEARING HOUSING 638.01 NIPPLE (FOR OILER) *360.01...
- Page 20 ZM II 630/03...
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Page 21: Trouble-Cause-Remedy
Trouble-Cause-Remedy In the event of troubles we recommended to locate the cause using the following chart: Trouble Cause -remedy no. 1 - 2 - 3 - 4 - 6 - 11 - 13 - 14 - 19 – 23 Pump does not deliver 2 - 3 - 4 - 5 - 6 - 7 - 8 - 11 - 13 - 14 - Capacity too small 17 - 19 - 20 - 23 - 29 - 31 –... - Page 22 Excessive air on gas in the pumping liquid Air pockets in suction line Air inhaled into suction line Air inhaled though stuffing box Flushing or circulation line blocked 10. Lantern ring incorrectly located 11. Speed too low 12. Speed too high 13.
- Page 23 31. Impeller damaged 32. Shaft sleeve worn 33. Incorrectly installed packing 34. Incorrect packing type installed 35. Non concentric running of rotor due to bearing wear or incorrect alignment 36. Rotor not properly balanced 37. Stuffing box pulled up too tightly 38.
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