Welch WOB-L 2561B-50 Page 1 Owner'S Manual Download

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OWNER’S MANUAL

FOR

WOB•L

PISTON VACUUM PUMP

MODELS:

2561B-50 2563B-24
2561C-50 2563C-24
2561C-56 2563C-25

For outside of U.S. and Canada, contact your local

Gardner Denver sales offi ce.

WELCH-ILMVAC

Warning

Not recommended for pumping acid, base or organic vapors or gases.

Warning

Be sure to properly identify intake and discharge before using pump.

See section 2.5

Part No. 642826

Printed in USA

Welch-Ilmvac
5621 W. Howard Street
Niles, IL 60714
Phone: (847) 676-8800 (Technical Support)
Fax: (847) 677-8606
E-Mail: [email protected]
Web-Page: www.welchvacuum.com

Summary of Contents for WOB-L 2561B-50

Page 1: ...ce WELCH ILMVAC Warning Not recommended for pumping acid base or organic vapors or gases Warning Be sure to properly identify intake and discharge before using pump See section 2 5 Part No 642826 Printed in USA Welch Ilmvac 5621 W Howard Street Niles IL 60714 Phone 847 676 8800 Technical Support Fax 847 677 8606 E Mail gdwelchvacuum gardnerdenver com Web Page www welchvacuum com ...

Page 2: ...ions are found where failure to observe the instruction could result in damage to the equipment associated equipment and process These units conform to the SI International system of units of measurement The following symbols with recommendation of IEC1010 of warning will be found on the pump Caution Refer to accompanying documents Caution Risk of electrical shock Caution Hot surface WARNING Motor...

Page 3: ...0 Intake and discharge provisions 2 60 Electrical power 2 70 Vacuum connections 2 80 Vacuum and gauges 2 90 Traps Section 03 Operation 3 10 Starting procedures 3 20 Leak detection 3 30 Pressure range 3 40 Shutdown procedures Section 04 Maintenance 4 10 General Maintenance Section 05 Troubleshooting 5 10 Vacuum problems 5 20 Troubleshooting table Section 06 Specifications 6 10 Specification chart 6...

Page 4: ... pumps are totally enclosed fan cooled 1 19 Do not use any tools or attachments without first determining maximum air pressure for that tool or attachment Be sure to properly identify intake and discharge before using pump See Section 2 50 1 20 WARNING TO REDUCE RISK OF ELECTRICAL SHOCK 1 21 Do not disassemble Disassembly or attempted repairs if accomplished incorrectly can create electrical shock...

Page 5: ...erably in a clean dry and well ventilated area Please be sure not to block the ventilation holes located on the motor housing The pump should be placed where the surrounding temperature remains between 10 C and 40 C 50 F and 104 F Always check to insure the location chosen is protected from direct or indirect moisture contact Welch recommends that the pump be installed at the highest point within ...

Page 6: ...ck by providing an escape wire for the electric current This product is equipped with a cord having a grounding wire with a grounding plug The plug must be plugged into an outlet that is properly installed and grounded in accordance with all local codes and ordinances DANGER Improper installation of the grounding plug can result in risk of electrical shock If repair or replacement of the cord or p...

Page 7: ...asure pressure in mm Hg or Inches of Hg The dial vacuum gauge gives negative pressure that is pressure below atmospheric The reference point for the vacuum gauge is atmospheric pressure Please keep in mind that atmospheric pressure tends to vary from day to day As a result of variability the dial vacuum gauge will indicate slightly different maximum vacuum readings from day to day 2 90 TRAPS 2 91 ...

Page 8: ...sk to keep the trap at a uniformly low temperature If the trap is rewarmed it may allow re evaporation of the condensate The refrigerant add tube on the liquid nitrogen trap should not be obstructed as the refrigerant boil off can produce dangerously high pressures If the trap becomes saturated it should be disconnected from the system drained and cleaned An increase in pressure in the vacuum syst...

Page 9: ... all leaks in a vacuum system is obvious The pump must remove this added volume of leaked gas to maintain the desired vacuum Leaks for these pump can be located by slightly pressuring the system and painting the suspected area with a thick soap solution Escaping air will produce soap bubbles 3 30 PRESSURE RANGE Vacuum pumps are designed to be run from slightly below atmospheric to their maximum va...

Page 10: ...lems still exist the pump should be checked A simple criterion for the condition of the pump is the determination of its maximum vacuum capability This can be accomplished by blocking of the intake and reading the vacuum level on the gauge See Section 2 8 5 20 TROUBLESHOOTING TABLE Poor Pumping Speed Poor Vacuum Loud Unit Possible Cause Corrective Action X X X Damaged valves Replace flapper valves...

Page 11: ...or Horsepower Horsepower 1 3 Tubing needed I D in Inches mm 1 4 7 Shipping Weight Weight lbs Kg 16 5 7 5 Catalog Number Catalog Number Wired for 115V 60Hz 1Ph with North American Plug 2563B 24 Catalog Number Wired for 220V 50Hz 1Ph with European Schuko Plug 2563C 24 Catalog Number Wired for 100V 50 60Hz 1Ph with North American Plug 2563C 25 6 20 PUMPING SPEED CURVE 11 ...

Page 12: ...ed under this warranty rather than replaced The warranty is effective for one year from the date of original purchase when 1 The warranty card has been completed and returned 2 The product is returned to the factory or other designated service centers freight prepaid 3 The product in our judgment is defective through no action or fault of the user If the product has become defective through misuse...

Page 13: ...Section 8 PARTS LIST AND EXPLODED VIEWS 8 10 MODEL 2563 DIMENSIONAL 13 ...

Page 14: ...00K 04 1 2563K 01 Connecting Rod Assembly 2 2567K 02 Valve Plate Assembly 2 3 Cylinder O Ring 2 2 4 Valve Plate Head Gasket 2 2 5 Cylinder Sleeve 2 6 Piston Cup XL9650 2 2 7 Suction Cup Feet 4 8 Retainer Hold Down Screw 2 2 These parts are only available in kits These parts should be repaired by qualified service personnel only ...

Page 15: ... cycles from atmospheric to 5 Torr before needing seal maintenance The pumps come completely equipped and ready to use An inlet trap to help prevent ingestion of fluids into the pump a dial gauge for continuous vacuum level monitoring and a vacuum regulator to adjust vacuum levels Just plug it in and you re up and running Models 2561B 50 2561C 50 2561C 56 are suited for 1 5 cubic foot ovens or sma...

Page 16: ...IL 60714 Phone 847 676 8800 Technical Support Fax 847 677 8606 E Mail gdwelchvacuum gardnerdenver com Web Page www welchvacuum com Copyright 1997 2007 Gardner Denver Welch Vacuum Technology Inc Welch is registered trademarks of Gardner Denver ...

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