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Maintenance and Servicing 

2511 

13 

Maintenance and Servicing 

WOB-L

®

 Piston pumps are 100% oil-free. The piston and cylinder of the pump are lubricated

maintenance free. All bearings are sealed and permanently lubricated. 

6.1 

Maintenance Performed by the User 

WARNING ! 

Only perform the work that is described here, and that which is permitted to be done 
by the user. 
All other maintenance and service work may only be performed by the manufacturer 
or a dealer authorized by him. 

Beware of the pump parts being possibly contaminated by hazardous substances. 
Wear protective clothing if there is contamination. 

Renew defective parts, if necessary! Do not clean with compressed air! 

Check the pump daily for unusual running noises and heat building up on the surface of 
the pump. 

Check the electrical and vacuum connections daily. 

6.2 

Maintenance by the Manufacturer 

Repairs and maintenance going beyond the extent of the work described 

in chapter 6.1

 or 

reconditioning or modification may only be performed by the manufacturer or authorized 
workshops. 

WARNING ! 

The user shall be liable for the consequences of an incorrect damage report or a 
contaminated pump. The statements in the damage report are legally binding. 

6.3 

Damage Report 

You find the form of the damage report to the Download on our web page in the menu "ser-
vice" and "Downloads".

  

www.

welchvacuum

.com

If you should not have an entrance to the Internet, you can request the form also gladly with 
us, under phone +49 3677 604 0. 

WARNING ! 

Incomplete or incorrectly completed damage reports may endanger the service per-
sonnel! 
Give full information in the damage report, in particular regarding a possible con-
taminating. 

Summary of Contents for Welch WOB-L 2511B-02

Page 1: ...Operation Manual EN Translation of the german original manual WOB L Piston pumps Models 2511C 02 2511B 01 2511 2017 05 16...

Page 2: ...t Prospect IL 60056 USA T 1 847 676 8800 F 1 847 677 8606 welch na gardnerdenver com www welchvacuum com We are constantly working on the further development of all our product models Reprinting or re...

Page 3: ...upply 8 3 2 Protection measure against liquids in the pump 9 3 2 1 Condensate separator Suction side 9 3 3 Areas of Application 9 3 4 Scope of Delivery 9 3 5 Accessories 9 4 Technical Data 10 5 Instal...

Page 4: ...done The user must authorize the operating personnel to do the work that has to be done The personnel must have read and understood the complete Operating Manual before using the WOB L Piston Pumps T...

Page 5: ...afety requirements Part 1 Compressors Part 2 Vacuum pumps DIN EN ISO 2151 2009 01 Acoustics Noise test code for compressors and vacuum pumps Engineering method grade 2 DIN EN 60204 12014 10 Safety of...

Page 6: ...connecting to the electrical power supply system The electrical power supply system must have a protective connector according to DIN VDE 0100 410 IEC 60364 4 41 The protective connector must not have...

Page 7: ...recommended for pumping acidic basic or organic va pors Poisonous Gases Use a condensate separator eg Woulff bottle when pumping poisonous or harmful gases Prevent such substances from leaking out of...

Page 8: ...e disconnection devices current output Motor is provided with a thermal overload protection ex works protecting the vacuum pump from damage or destruction respectively WARNING Should the user change t...

Page 9: ...hemical laboratories in trade and industry Use for vacuum filtration vacuum drying and other vacuum technology applications 3 4 Scope of Delivery The scope of delivery is specified in the supply contr...

Page 10: ...er No for WOB L Piston pump 230V 50Hz inclusive mains connection cable with plug CEE and UK 2511C 02 WOB L Piston pump 115V 60Hz inclusive mains connection cable with plug US 2511B 01 The information...

Page 11: ...the cooling of the pump is guaranteed see chapter 2 3 Note that on the installation location no moisture acts on the pump 5 2 2 Connecting 5 2 2 1 Electrical Connection Before the electrical connectio...

Page 12: ...he pump 5 3 2 Decommissioning If vacuum applications with special steam load the pump needs to run after the process with an open vacuum port about 2 minutes and rinsed with atmospheric air This measu...

Page 13: ...ilding up on the surface of the pump Check the electrical and vacuum connections daily 6 2 Maintenance by the Manufacturer Repairs and maintenance going beyond the extent of the work described in chap...

Page 14: ...rvice workshop Exchange Pump does not generate a vacuum or overpressure Connected apparatus and or connecting elements leaking User or Service workshop Identify and seal the leak replace the seals and...

Page 15: ...ssessment and risk reduction S curit des machines Principes g n raux pour l valuation des risques et la r duction des risques Seguridad de las m quinas Principios generales para el dise o Evaluaci n d...

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