Extractor, filler and measurement connections with Schrader valve |
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| Carefully screw in the handwheel of the service coupling after connecting the A/C service station and only so far until the valve of the service connection is safely opened (observe the pressure gauge, do not over-press the valve). |
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| Carefully tighten the valve core -2- because of the low tightening torque. |
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| These valves are available in different versions and thus have different tightening torques; if the valve core -2- has a thread of VG5 (5.2 x 0.7 mm, tyre valve) the tightening torque is 0.4±0.1 Nm, a valve core with a thread of M6 x 0.75 mm has a tightening torque of 0.9±0.1 Nm and a valve core with a thread of M8 x 1.0 mm has a tightening torque of 2.0±0.2 Nm. |
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