Notice – Labconco VACUUBRAND HYBRID Rotary Vane Pump 7584000 User Manual

Page 26

• If pumping aggressive, corrosive or otherwise danger-

ous gases and vapors, take appropriate measures to

protect personnel, pump, and environment. Use appro-

priate equipment such as cold trap, separator, oil sepa-

rator, full flow oil filter, shut-off valve, or exhaust waste

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.

In case of overload, the motor is shut down by a

self-hold

thermal circuit breaker 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.

Avoid high heat supply (e.g., due to hot process gases).

gas and ambient temperatures.

NOTICE