Maintenance and repair, Notice – Labconco VACUUBRAND HYBRID Rotary Vane Pump 7584000 User Manual
Page 15
tem, if the manual gas ballast valve of the rotary vane
pump is open. If this constitutes a potential source of
danger, take appropriate safety measures, e.g., install
a solenoid operated gas ballast valve.
Do not start the pump if the pressure difference between
inlet and outlet exceeds 16 psi (1.1 bar) at maximum.
Prevent the backpressure of gases and the backflow of
condensates at the outlet.
Important notes on working with
condensable vapors:
Allow the pump to attain its operating temperature before
pumping condensable vapors. Keep the vapor inlet pres-
sure below the permitted maximum (see ”Technical data”,
Open the gas ballast valve in case of pumping significant
amounts of vapor.
Provide appropriate protective measures to allow for the
possibility of failure and
malfunction. The protective mea-
sures must also allow for the requirements of the respec-
tive application.
In case of overload, the motor is shut down by a
self-hold
thermal cutout in the winding.
Note: Only manual reset is possible. Switch off the pump
and disconnect from the power source. Identify and elimi-
nate the cause of failure. Wait approx. five minutes before
restarting the pump.
Avoid high heat supply (e.g., due to hot process gases).
See “Technical data”, pg. 18, for maximum permitted
gas and ambient temperatures.
Maintenance and repair
In order to comply with laws (occupational, health and
safety regulations, safety at work law and regulations for
NOTICE
NOTICE