Release the dust-protection cap -1- from the coupling -2- so as to allow the release tool to be fitted.
Note
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The insulating hose on the low-presure line must be at a distance -a- of at least 20 mm from the coupling, as otherwise it is impossible to fit the release tool.
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If necessary after removing the dust-protection cap, carefully cut the insulating hose longitudinally and fold forwards.
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Mount release tool -2- on the refrigerant line -1- and coupling housing -3- in such a way that the flattened parts on the release tool -arrow A- correspond with the flattened parts on the coupling -arrow B-.
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Insert release tool -1-, beyond a perceptible resistance up to the stop in -the direction of the arrow-, in the coupling housing -2-.
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Press release tool -2- against the stop on the refrigerant line -1-.
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Draw the refrigerant line -1- together with the release tool -2- from the coupling housing in -the direction of the arrow-.
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Fold up release tool -2- and remove.
Removing gasket
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Remove circlip -1- with suitable pliers.
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Remove locking insert -1- from the coupling housing -3-.
To this end compress the 2 catches -arrows A- in the holes -arrows B- until the locking insert can be removed.
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Remove O-ring -2-.
Install circlip
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Moisten new O-ring -1- with refrigerant oil and insert in the coupling housing -2- up to the stop.
Note
Pay attention to the different O-rings for the high-pressure and low-pressure line.
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Fit new locking insert -1- in the coupling housing -2-.
Catches -arrows A- must lock into the holes -arrows B-.
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Install circlip -1- with suitable pliers.
Connecting the quick coupling
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Press the refrigerant line -1- into the coupling housing -3- until it locks audibly.
The catches of the locking insert must clearly protrude from the holes of the coupling housing -arrows-.
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Insert dust-protection cap -2- into the coupling housing up to the stop.
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Press the refrigerant lines back into the holder on the frame side rail.