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OWNER’S MANUAL
FOR
®
WOB•L PISTON
PRESSURE/VACUUM PUMPS
MODELS 2522, 2534 AND 2545
Contents: Safety Information
Installation
Operation
Maintenance
Trouble-Shooting Guide
CE
Specifications
Warranty
Parts List and Exploded View
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 II-5
Welch Rietschle Thomas
7301 North Central Avenue
Skokie, IL 60077
Phone: (847) 676-8800
Fax: (847) 677-
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Welch Vacuum Technology Read and understand the following information and 1-4c. Do not pump combustible liquids or vapors with this instructions included with your Welch Dry Dual Function product or use in or near an area where flammable or Pressure &Vacuum Pumps before using. This information is explosive liquids or vapors may exist. for your safety and to prevent damage to the pumps. I-4d. Do not use this product near flames. FAILURE TO OBSERVE THE ABOVE I. SAFETY INFORMATION SAFETY PRECAUTION
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The pressure regulator and pressure dial gauges are attached to the reference point for the pressure gauge is atmospheric pressure. discharge port. The pressure regulator allows discharge pressure to Please keep in mind that atmospheric pressure tends to vary from be set between atmospheric and the maximum possible for the pump day to day. As a result of this variability, the dial vacuum gauge model. Discharge air is filtered and noise is muffled with a filter. will indicate slightly different m
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Ill-1a. Starting A Welch Pressure/Vacuum Pump clean and free from leaks, and unwarranted pressure problems still exist, the pump/compressor should be checked by a service technician. Before attaching the pump to a system, familiarize yourself with (See Section II-8). the function and action of the pressure/vacuum pump that you have acquired. Review the power requirements as described in V-3. TROUBLESHOOTING GUIDE Section l-6. Welch recommends running the pump for a few minutes to warm it up, bef
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DRAWING AND PARTS LIST FOR 2522 Seal Service Item Service Kit Q. uantityPn art No Descriptio Gasket Kit Kit-Feet Number 2522K-03 2522K-04 2500K-04 112y 522K-01C1 onnecting Rod Assembl 22Nw ote1H2 andle Scre 34Nw ote1H4 ead Scre 41Nd ote1O1 -Ring Hea 1 512y 565K-02V1 alve Plate Assembl 61Nr ote1O1 -Ring Cylinde 1 72Nc ote1J1 ar - Plasti 1 81Nt ote1F1 ilter Elemen 1 916e 38787 Pressure Gaug 11 0 Nl ote1B1 al 1 11 1 6e 38788 Vacuum Gaug 12 2 Nt ote1G1 aske 1 14 3 Nt ote1R4 ubber Suction Fee 11 42y
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DRAWING AND PARTS LIST FOR 2534 Seal Service Item Service Kit Q. uantityPn art No Descriptio Gasket Kit Kit-Feet Number 2522K-03 2522K-04 2500K-04 112y 522K-01C1 onnecting Rod Assembl 22Nw ote1H2 andle Scre 34Nw ote1H4 ead Scre 41Nd ote1O1 -Ring Hea 1 512y 565K-02V1 alve Plate Assembl 61Nr ote1O1 -Ring Cylinde 1 72Nc ote1J1 ar - Plasti 1 81Nt ote1F1 ilter Elemen 1 917e 1-1292 Pressure Gaug 11 0 Nl ote1B1 al 1 11 1 6e 53792 Vacuum Gaug 12 2 Nt ote1G1 aske 1 14 3 Nt ote1R4 ubber Suction Fee 11 42y
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DRAWING AND PARTS LIST FOR 2545 Seal Service Item Service Kit Q. uantityPn art No Descriptio Gasket Kit Kit-Feet Number 2522K-03 2522K-04 2500K-04 112y 522K-01C1 onnecting Rod Assembl 22Nw ote1H2 andle Scre 34Nw ote1H4 ead Scre 41Nd ote1O1 -Ring Hea 1 512y 565K-02V1 alve Plate Assembl 61Nr ote1O1 -Ring Cylinde 1 72Nc ote1J1 ar - Plasti 1 81Nt ote1F1 ilter Elemen 1 917e 1-1292 Pressure Gaug 11 0 Nl ote1B1 al 1 11 1 6e 53792 Vacuum Gaug 12 2 Nt ote1G1 aske 1 14 3 Nt ote1R4 ubber Suction Fee 11 42y
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Vacuum Pump Repair Facility 7301 N. Central Ave Skokie, IL 60077 Phone: (847) 676-8800 Ext. 1 Fax : (847) 677-8606 copyright 1996, 1997, 1998, 1999 Welch Vacuum, Thomas Industries Inc. Welch is a registered trademarks of Welch Vacuum, Thomas Industries, Inc. P/N 642230E 08/01
