Welch WOB-L 2534 Owner's Manual
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Welch WOB-L 2534 Owner's Manual

Wob-l piston pressure/vacuum pump
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WELCH-ILMVAC
WOB•L
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
OWNER'S MANUAL
®
PISTON PRESSURE/VACUUM PUMP
Not recommended for pumping acid, base or organic vapors or
Be sure to properly identify intake and discharge before using the
For outside of U.S. and Canada, contact your local
Gardner Denver sales offi ce, see back page
FOR
MODELS:
2522, 2534
WARNING
gases.
WARNING
pump. See Section 2.50
Part No. 642230R 10/08
Printed in USA

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Summary of Contents for Welch WOB-L 2534

  • Page 1 WELCH-ILMVAC OWNER’S MANUAL ® WOB•L PISTON PRESSURE/VACUUM PUMP MODELS: 2522, 2534 WARNING Not recommended for pumping acid, base or organic vapors or gases. WARNING Be sure to properly identify intake and discharge before using the pump. See Section 2.50 For outside of U.S. and Canada, contact your local Gardner Denver sales offi...
  • Page 2 INSTRUCTION WARNING AND CAUTION PLEASE READ BEFORE OPERATION While reading your manual, please pay close attention to areas labeled: WARNING AND CAUTION. The description of each is found below. WARNING Warnings are given where failure to observe instruction could result in injury or death to people.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Section 01 - Safety Information 1.10 Warning to prevent injury 1.20 Warning to reduce risk of electrical shock 1.30 Warning to reduce risk of electrocution 1.40 Warning to reduce risk of explosion Section 02 - Installation 2.10 Introduction 2.20 Unpacking...

  • Page 4: Warning To Prevent Injury

    1.11 Never operate this product if it has a damaged cord or plug. If it is not working properly, has been dropped, damaged or has fallen into water, please return the product to a Welch service center for examination and repair.

  • Page 5: Introduction

    Section 2: INSTALLATION 2.10 INTRODUCTION 2.11 This manual has been compiled not only for the care and maintenance of the Welch Dry Dual Funktion Pressure/Vacuum Pump now in your possession, but as a helpful reference and guide to prevent many problems which occur if used improperly 2.20 UNPACKING...

  • Page 6: Intake And Discharge Provisions

    PROPERLY IDENTIFY THE INTAKE AND DISCHARGE OF THE PUMP Intake Discharge Pressure/Vacuum Pump Be sure to call Welch technical service prior to start-up at (847) 676-8800 if you have any questions. 2.60 ELECTRICAL POWER 2.61 Power Source Review Review the power source and the motor rating to be sure they agree in voltage, phase, and frequency.

  • Page 7: Vacuum And Pressure Gauges

    If there is a chance liquid may be drawn from the process under evacuation, Welch recommends a liquid trap be placed between the process and the pump. A simple liquid trap is a fi ltering fl ask. See fi gure below.

  • Page 8: Section 03 - Operation

    Review the power requirements as described in Section 2.60. Welch recommends running the pump for a few minutes to warm it up, before use. The warm-up improves the pumps ability to handle humid air.

  • Page 9: Section 05 - Troubleshooting

    Damaged gasket Replace gasket Loose head screw Tighten head screw Loose fi tting Tighten fi tting Section 6: SPECIFICATION 6.10 SPECIFICATION CHART Welch Model 2522 2534 Free Air Displacement CFM (L/min.) @60Hz 0.76 (22) 1.20 (34) M3 (L/min.) @50Hz 0.66 (19) 1.0 (28)
  • Page 10 WARRANTY This Welch Vacuum product is warranted to be free from defects in material and workmanship. The liability of Gardner Denver Welch Vacuum Technology, Inc. under this warranty is limited to servicing, adjusting, repairing or replacing any unit or component part which in the judgment of Gardner Denver Welch Vacuum Technology, Inc.
  • Page 11 Section 8: PARTS LIST AND EXPLODED VIEW 8.10 Model 2522B-01, 2522C-02 Model 2522B-01 (115V 60Hz) Item Qty. Part No. Description 726025 Pressure Gauge 726021 Vacuum Gauge 2522K-06 Pressure Regulator Ass’y 2522K-05 Vacuum Regulator Ass’y Model 2522C-02 (230V 50Hz) Item Qty. Part No.
  • Page 12 Section 8: PARTS LIST AND EXPLODED VIEW 8.20 Model 2534B-01 Model 2534B-01 (115V 60Hz) Item Qty. Part No. Description 726025 Pressure Gauge 726021 Vacuum Gauge 2522K-06 Pressure Regulator Ass’y 2522K-05 Vacuum Regulator Ass’y Service Kit Seal Kit Foot Kit Item Qty.
  • Page 13 Welch. This document is to be returned to Welch upon request and in all events upon completion of the purpose for which it is loaned.

This manual is also suitable for:

Wob-l 2522

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