Pump Installation and Operating Information
4
The Bosworth Company
Doc M-09-36-092518
Your Guzzler Pump is capable of developing 22 in. of Hg vacuum (0.7 bar), but it is a low
‐
cfm (cubic feet of air per
minute) pump. This means that even very small leaks can prevent the pump from delivering its rated vacuum.
Maintain your tap lines to keep your system tight and address problems that can cause vacuum leaks.
It is best to install your Guzzler at or above collection tank level to avoid shortening diaphragm life. This will re
‐
duce the output pressure on the diaphragm, thus reducing mechanical stress on the diaphragm.
When installing your Guzzler Pump, we recommend that you install a shut
‐
o
ff
valve and a vacuum gauge – in
that sequence – “in front of” the pump; i.e., just before your connec on to the pump’s inlet port.
(Figure 3)
If you experience a loss of vacuum in your system – as registered in the gauge near the pump – slowly turn the
shut
‐
o
ff
valve to isolate the pump from your mainline. DO NOT SHUT THE VALVE SUDDENLY, AS PUMP DAMAGE
MAY RESULT. If the gauge begins to return to normal opera ng vacuum, then the pump is working properly and
the source of the leak is somewhere in your sap lines or taps. If, on the other hand, the pump fails to recover
normal vacuum, then the pump is the source of the problem, and you should inspect the pump diaphragm and/
or valves for any holes or tears. In the case of the valves, check for any material that may have entered the
pump and lodged in the valve body, preven ng the valve from proper opening and closing.
The motor’s surface temperature may exceed 160°F (70°C). Ensure that the motor is protected from the ele
‐
ments, but that it also has adequate airflow during operation to prevent overheating.
If there is a risk of freezing conditions, we recommend that you disconnect the pump from your sap lines when
the pump is not running and drain any excess sap from the pump. Sap can freeze within the pump bodies or
lines. If this happens and the pump is turned on, it will result in damage to various pump components, including
pump bodies, valves and diaphragms. We recommend flushing the pump (i.e., letting it pull a full volume of wa
‐
ter) and then draining any remaining water from the pump to help prevent freezing.
To shut the pump down and disconnect it from the mainline, first turn the pump off. Then, close the shut
‐
off
valve to isolate and maintain some vacuum in the mainline. Then disconnect the pump from the mainline, using
Quick Couplers if you have used these for your pump
‐
to
‐
mainline connection. Turn the pump back on briefly to
flush any remaining sap from it. Finally, tilt the pump to drain any remaining sap.
Schema c showing recommended shut
‐
o
ff
valve and vacuum gauge installed on
inlet side of pump.
Figure 3