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Before using your vacuum pump . . .
Note about Motor Voltage Connections:
In all cases, motors are designed for operating voltages plus or
minus 10% of the normal rating (see Pump Specications). Single
voltage motors are supplied fully connected and ready to operate.
1. Conrm that the voltage and frequency at the outlet match the
specications on the pump motor decal.
2. Conrm the ON-OFF switch is in the OFF position before you plug
the pump into an outlet.
3.
The pump is shipped without oil in the reservoir. Before starting the
pump, ll it with oil. Remove the OIL FILL cap (red plastic plug at
the front of the handle), and add oil until oil appears in the bottom
of the sight glass. For oil capacities, refer to Pump Specications in
this manual.
4. Replace the OIL FILL cap, and remove the cap from one of the
inlet ports.
5. Turn the motor switch to ON.
6. When the pump runs smoothly, replace the cap on the inlet port.
This may take from two to 30 seconds, depending on the ambient
temperature.
7. After the pump has run for approximately one minute, check the
sight glass for the correct oil level — oil should be even with the
sight glass OIL LEVEL line. With the pump off, add oil if necessary.
Note: When the pump is running, the oil level should be even with the
line on the sight glass. Underlling the pump will result in poor vacuum
performance; overlling can result in oil blowing from the exhaust.
Your pump is now ready to evacuate air conditioning and
refrigeration systems. Follow normal service procedures and the
A/C-R manufacturer’s instructions for connections to the system.
CAUTION: Before connecting your vacuum pump to an A/C-R system, remove
refrigerant from the system in an accepted manner. Damage to the
pump may occur if evacuation is started while the system is under
high pressure. Robinair recommends the use of its Refrigerant
Recovery and Recycling equipment.
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