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Evacuating A/C System: Jeep

  1. Connect approved recovery/recycling equipment and manifold gauge set. Fully open manifold gauge set low-side and high-side valves, and start vacuum pump. Operate vacuum pump until low-side vacuum reading of 26 in. Hg or more. Close all valves and turn vacuum pump off. Observe vacuum gauge, go to next step.
  2. If A/C system maintains specified vacuum for 5 minutes, open low-side and high-side valves, restart vacuum pump and operate for an additional 10 minutes. Close all valves. Turn vacuum pump off and disconnect pump.
  3. If A/C system cannot get to or maintain specified vacuum, check for a defective vacuum pump or leak in A/C system or gauge set. See LEAK TESTING . Repair or replace components as necessary.
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