Operation CHARM: Car repair manuals for everyone.

Maintenance Is Essential

If the recycling equipment is maintained properly, it can clean and purify the removed refrigerant so that it will exceed the SAE standards for content of moisture, oil, air and noncondensibles. Like any equipment, however, this machine will operate at its best efficiency only if it is maintained properly. This means you must check the moisture indicator often and replace the filter drier core whenever necessary. You must make sure the correct manifold gauge and hoses are used in all cases, and that the valves in the hoses are working properly. Make sure the unit stays clean and that the hoses are always hung up away from contamination when the unit is not in use.