A separate Safety Service Attachment needs to be completed for every single item. This Safety Service Form is
legally binding and can ONLY be completed by an authorized and qualified staff member.
Welch vacuum pumps are often used in laboratory applications that could involve contact with dangerous chemicals.
The overriding concern in operating, maintaining, or repairing equipment in the laboratory environment is always for
safety – safety for all personnel who could potentially be exposed to chemical contamination. When sending a pump
in for repair, keep in mind the safety of shipping and repair personnel.
1. As a first step toward reducing potential hazards, always clean and decontaminate pumps per the procedures on
the Welch safety form prior to shipment.
2. Additionally, Welch (and the law) requires full disclosure of potential contaminants on the Safety Service form to be
provided prior to issuing a return authorization. The information on this form will dictate the handling needed in the
repair process and is vital to the safety of our workers. We appreciate your cooperation on this.
for Direct & Belt Driven Pumps
1. Flush Pump Three Times. Drain pump completely. Refill with fresh vacuum oil. Operate pump blanked off for at least 15 minutes. Repeat all steps two more times. Drain completely. Oil should come out clean, otherwise repeat until clean.