VACUUBRAND RC 6 - Manual (Page 28)

page 28 of 59
Check the oil level more frequently if high amounts of
gas or vapor are pumped.
• If pumping aggressive, corrosive or otherwise danger-
ous gases and vapors, take appropriate measures to
protect personnel, pump, and environment. Use ap-
propriate equipment such as cold trap, separator, oil
separator, full flow oil filter, shut-off valve, or exhaust
waste vapor condenser (see “Accessories”, pg. 39)
as well as special oil.
The ambient temperature should be at least 54°F (12
°C). Otherwise the pump may not start because of the
high oil viscosity at low temperature.
Pumping down can be started at any pressure at the inlet
below atmospheric pressure.
Do not start the pump if the pressure at the outlet port
exceeds 16.0 psi (1.1 bar) absolute.
Continuous operation is possible at any pressure below
atmospheric pressure.
Oil consumption will increase at inlet pressures above 75
Torr (100 mbar). Check oil level more frequently.
Prevent internal condensation, transfer of liquids or dust.
The pump unit as well as the diaphragms and valves will
be damaged if liquids are pumped in significant amounts.
Check the pump regularly for external soiling and depos-
its. Clean the pump if necessary to avoid an increase of
the pump’s operating temperature.
The motor is protected by a self-hold thermal cutout in
the winding.
Note: Only a manual reset is possible. Switch off the
pump and disconnect the electrical power cord. Identify
and eliminate the cause of failure. Wait approximately five
minutes before restarting the pump.
NOTICE