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9
General rules for handling quick fittings like John Guest® .
The connection of the white ¼ tube to the fittings can be done manually or using the special key
included in the package. Quick-release joints of the John Guest® type allow, if it is necessary, to carry
out procedures for connecting / disconnecting the tubes and the fittings multiple times.
Important! Do not apply the force when performing these procedures! The correct connections /
disconnections of tubes and fittings like John Guest® do not require excessive force!
Fig. 6 General principles of connecting tubes to the quick release fittings such as John Guest®
To connect the tube to the fitting the following actions should be done:
u
Insert the white tube until it stops in the hole of the fitting; If the connection is right then the
tube enters the fitting hole by 15-18 mm;
u
Check the reliability of tube connection by countermotion of the tube. At the countermotion
of the tube the end ring (collet sleeve) of the fitting extends from the base;
u
A retaining lock (blue / red clip) is inserted into the gap between the end ring (collet sleeve)
and the base of the fitting.
To disconnect the tube from the fitting:
u
Temporarily remove the retaining lock (blue / red clip) from the fitting;
u
Press the end ring (collet sleeve) of the fitting to the base of the fitting by the hand or with
special key and hold it in this position while pulling out the white tube;
u
Pull the tube out of the fitting hole.