OK, so I got my gauges and leak detector kit. I also got the Mastercool manual, which has a lot of good info. However, in the Servicing section where it talks about hooking up the gauges, it says:

"After the test gauges are attaced it will be necessary to purge the test hoses of all air before proceeding with testing. Use instructions, provided with the recycling machine, to properly purge the test hoses."

Does this mean that I have to get a recycling machine or pump, even if I just want to check pressure and/or add refrigerant? Is there another way to purge the air?

Thanks again.

__________________
J.B. Hebert

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'76 Ford Bronco
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