Robinair 17644 draining equipment and Robinair 10094 vacuum pump
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Robinair 17644 draining equipment and Robinair 10094 vacuum pump
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Only small amounts of the wrong refrigerant or the wrong compressor oil will give rise to chemical reactions which in the long run will ruin both the equipment and the car's AC system.
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Important
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Under no circumstances whatsoever must the draining and filling equipment for R134a refrigerant be used for R12 refrigerant, and vice versa.
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Important
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Draining of the system should be carried out on both the low-pressure and high-pressure sides simultaneously. A non-return valve in the inlet of the compressor's low-pressure side makes draining of only one side impossible.
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1.
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Open the red cock ("Gas") for gaseous refrigerant on the draining station's container.
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2.
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Connect the yellow hose on the pressure gauge stand's middle outlet to the inlet side of the draining station.
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3.
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Using a snap-on coupling, connect the blue low-pressure hose to the low-pressure side of the AC system.
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4.
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Using a snap-on coupling, connect the red high-pressure hose to the high-pressure side of the AC system.
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5.
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Open the valves on both snap-on couplings by screwing in the knobs.
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6.
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Open the cocks on the blue low-pressure hose and red high-pressure hose on the pressure-gauge stand.
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7.
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Start the draining station.
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8.
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If the draining station operates correctly, it should show negative pressure when the draining valve is closed.
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9.
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Open the draining valve and drain the AC system of refrigerant.
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10.
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Close the draining valve when the gauge on the draining station shows negative pressure (about 10 inch Hg).
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11.
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Turn off the draining station.
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12.
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Close the cocks on the blue low-pressure hose and red high-pressure hose on the pressure gauge stand.
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13.
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Remove the yellow hose from the draining station. Draining is now finished and work on the AC system can commence.
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