Vince, if the installer did not use the locking clips on JG fittings he did not complete the installation. I suggest you go aroung your van and fit them to every fitting that lacks them before you experience troubles in other sections.
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PeterD Nissan Navara D23 diesel auto, Spaceland pop-top Retired radio and electronics technician. NSW Central Coast.
Funny you should mention that Peter.............
I went into a yard not far from home, it is full with a variety of caravans, NOT ONE locking clip in sight on all the vans I looked at!
It would seem it is common practice not to use locking clips, beware!
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"life is too short to spend it with people who suck the happiness out of you"