Robinair Model 15600 - Manual (Page 4)

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Before using your vacuum pump...
Note on Motor Voltage Connections:
In all cases, motors are designed for operating voltages, plus or minus
10% of the normal rating (see SPECIFICATIONS). Single voltage
motors are supplied fully connected and ready to operate.
1. Verify the voltage and frequency at the outlet match the specifications on the
pump motor decal. Place the ON / OFF switch in the OFF position before
you plug the pump into an outlet. Verify the gas ballast valve is closed.
Remove and discard the exhaust plug from the end of the pump handle.
2. The pump is shipped without oil in the reservoir. Before starting the
pump, fill it with oil. Remove the OIL FILL cap (plastic plug directly in
front of the handle), and add oil until oil just shows in the bottom of the
sight glass. The approximate oil capacity of the pump is 15 ounces.
3. Replace the OIL FILL cap, and remove the cap from one of the inlet
ports. OPEN the Iso-Valve™. Turn ON the motor switch. When the
pump runs smoothly, CLOSE the Iso-Valve™, and replace the cap on the
inlet port. This may take from two to 30 seconds depending on ambient
temperature. After the pump runs for approximately one minute, check
the sight glass for the correct oil level — the oil should be even with the
sight glass OIL LEVEL line. Add oil if necessary.
Note: When the pump is running, the oil level should be even with
the line on the sight glass. Underfilling will result in poor vacuum
performance; overfilling 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
using an approved recovery unit. Damage to the pump may
occur if evacuation is started while the system is under high
pressure.