Welch Vacuum 2546 WOB-L Pinston Pump - Manual (Page 5)

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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
Function Pressure/Vacuum pump now in your possession, but as a helpful reference and guide
to prevent many problems which can occur if used improperly.
2.20 UNPACKING
2.21 Carefully remove the Pressure/Vacuum pump from the shipping case and unfasten and
remove the wooden skid. Preserve all paperwork for future reference. If damage has occurred
from shipment a claim must be fi led with the carrier immediately; preserve the shipping carton
for inspection by the carrier. If you are required to communicate with your dealer or Welch
Vacuum, be sure to include your order numbers for quick identifi cation. Do not return the pump
to the factory without fi rst calling for a returned goods number.
2.30 PUMP MOUNTING
2.31 Rubber feet are attached to the pump. Rubber feet are excellent for applications involving a
semi-fl exible surface such as a bench top; they help to isolate noise and eliminate creeping.
2.40 PUMP LOCATION
2.41 The pressure/vacuum pump should be located preferably 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 the system to prevent possible water condensate from entering the pump. The pump
should be located as closely to its system in order to utilize it most effi ciently.
WARNING
The motor is thermally protected and will automatically restart
unexpectedly when the overload device resets. Don’t pump
fl ammable or explosive gases or vapors or operate this pump in
an atmosphere containing fl ammable or explosive gases or vapors.