Xylem Bell & Gossett VSC Series Instruction Manual
Base mounted centrifugal pumps
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Summary of Contents for Xylem Bell & Gossett VSC Series
- Page 1 INSTRUCTION MANUAL P81630 REvIsIon E INSTALLER: PLEASE LEAVE THIS MANUAL FOR THE OWNER’S USE. Series VSC and VSCS ® ® Base Mounted Centrifugal Pumps (To BE UsED In ConJUnCTIon WITH vsC PARTs LIsT ConTAInInG LInE DRAWInGs)
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Page 2: Operational Limits
DESCRIPTION PUMP APPLICATION The VSC and VSCS Series centrifugal pumps are frame mounted The standard VSC and VSCS Series centrifugal pump’s bronze pumps which feature – high efficiency, rugged construction, fitted construction make it ideal for service with the following compact design, foot mounted volute, center drop out coupler, liquids: unheated domestic and fresh water, boiler feed water, and regreasable bearings. -
Page 3: Additional Safety Requirements
ADDITIONAL SAFETY REQUIREMENTS: ELECTRICAL SAFETY: MECHANICAL SAFETY: WARNING: Electrical Shock Hazard WARNING: Unexpected Startup Hazard Electrical connections to be made by a qualified Disconnect and lockout power before servicing. electrician in accordance with all applicable codes, ordi- Failure to follow these instructions could result in serious nances, and good practices. -
Page 4: Installation
INSTALLATION This pump is built to provide years of service if installed properly FOUNDATION and attached to a suitable foundation. A base of concrete weigh- PIPE BOLT SLEEVE ing 2 times the weight of the pump is recommended. (Check the shipping ticket for pump weight.) If possible, tie the concrete pad in with the finished floor. -
Page 5: General Instructions
FOR FINE ALIGNMENT, ORANGE HYTREL INSERTS, The pipeline should have isolation valves around the pump and 3500 RPM OPERATION, OR ALL OTHER COUPLER TYPES have a drain valve in the suction pipe. Use a dial indicator when greater alignment accuracy is re- A Bell &... - Page 6 VOLUTE VOLUTE IMPELLER COVERPLATE COVERPLATE CAPSCREW CAPSCREWS SEAL COVERPLATE SLINGER IMPELLER COVERPLATE BEARING SEAL HOUSING CAPSCREW BEARING SLINGER BEARING COVER COVER BEARING CAPSCREW SHAFT BEARING BEARING COVER HOUSING CAPSCREW SHAFT BEARING STANDARD SEAL CONFIGURATION SERVICE INSTRUCTIONS (Follow these first three steps for all VSC(S) pumps, then pro- CAUTION: Extreme Temperature Hazard ceed to the pump size and model that corresponds to the size Allow pump temperatures to reach acceptable levels...
- Page 7 INSTRUCTIONS FOR CHANGING DIRECTION OF ROTATION FOR VSC AND VSCS PUMPS 1. Remove coupler guard and coupler. 9. Insert shaft assembly, with reversed impeller, back into pump casing and reassemble second cover plate (now 2. Remove both bearing caps and bearing lock nuts. outboard) to volute.
- Page 8 SERVICE INSTRUCTIONS FOR PUMPS WITH A SINGLE FLUSH MECHANICAL SEAL (VSC-S, VSCS-S) (See special instructions for pumps 10 x 12 x 17, 12 x 14 x 12 , 12 x 14 x 17 and 8 x 10 x 17) TO REPLACE THE SEALS OR SHAFT SLEEVES: 14.
- Page 9 13. Install the second seal carbon. Lubricate and insert is properly positioned against the shaft shoulder. Install second stationary O-ring toward cap. Replace seal cap. and lock the cam lock into position. If the shaft and bear- ing are properly positioned, the cam lock set screw will fall 14.
- Page 10 SPECIAL INSTRUCTIONS FOR PUMPS (VSCS-S & VSCS-D) 8 x 10 x 17 TO REPLACE THE SEAL OR SHAFT SLEEVE: 15. Compress rotating seal assembly to a " space between the seal parts that house the compression springs. Tighten 4. Remove bearing cover and release bearing cam lock. set screws.
- Page 11 14. Install the bearing housings. Clean and regrease the bear- 15. Connect flush tubing to seal housing. ings and insert into bearing housings. Push the pump shaft 16. Replace drain plug. back from the motor end as far as possible, using a lever if necessary.
- Page 12 14. Install the bearing housings. Clean and regrease the bear- 15. Connect flush tubing to seal housing. ings and insert into bearing housings. Push the pump shaft 16. Replace drain plug. back from the motor end as far as possible, using a lever if necessary.
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Page 13: Dealer Servicing
HEX GUARD EXPLODED VIEW FOR TYPICAL VSC/VSCS PUMP INSTALLATION INNER GUARD PUMP BRACKET STYLE #1 OUTER GUARD BRACKET SUPPORT ATTACH TO BEARING HOUSING SUPPORT ARM. POSITION THE ARM BETWEEN THE HOLES IN THE OUTER GUARD AND HOLES IN THE SADDLE BRACKET. PUMP THE GUARD SUPPORT BRACKET STYLE #2... - Page 14 For more information on how Xylem can help you, go to www.xyleminc.com Xylem Inc. 8200 N. Austin Avenue Morton Grove, Illinois 60053 Phone: (847) 966-3700 Fax: (847) 965-8379 www.xyleminc.com/brands/bellgossett Bell & Gossett is a trademark of Xylem Inc. or one of its subsidiaries. © 2012 Xylem Inc. P81630E February 2012...