| Connecting air conditioner service station for measuring and testing |
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| Connect air conditioner service station to power supply. |
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| Assemble adapter set and screw onto connection on low-pressure side. |
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| Connect quick-release coupling adapters to the charging hoses of the air conditioner service station (handwheels not screwed in/hand shut-off valve not open). |
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| Switch on the air conditioner service station and evacuate the charging hoses (only necessary if there is air in the charging hoses). |
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| Switch off air conditioner service station. |
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| Unscrew the sealing cap from the service connection or the connection with valve (or remove the low-pressure switch and jumper the corresponding electrical connections). |
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| Connect up the air conditioner service station via the service connections with quick-release coupling adapters to the vehicle refrigerant circuit. |
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| Only screw in the handwheel of the quick-release coupling adapters to the extent required to reliably open the valve at the refrigerant circuit connection (observe pressure gauge, do not open valve too far). |
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| Perform planned tests and measurements. |
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