Witter detachable tow bar with blue release bar

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ScreenName94791EF1A2 Forum Participant Posts: 2
edited October 2020 in Introductions #1

Only been vanning for 50 years and still learning! Have BMW 535 so huge grunt and bailey Sancerre. The Witter Detachable tow bar worked well for 5 years albeit occasionally some frustration at not getting it “loaded” for attachment. Apart from awkwardness in bending very low to turn the strong spring loaded blue bar to release no problems; till now!
Unable to detach. Have sprayed with WD40 and chain lube and left to soak but still no go. Have spoken to patient guy at Wtter who assured me as long as “yellow” showing bar is locked in place and safe to use. Firm that fitted seems to no longer exist.

when depressing blue release bar and turning clockwise does not feel like same resistance as previously albeit when in release position does sort of click and the blue bar springs out by couple of mil. Also is possible to turn the blue bar far beyond what was previously possible.

have seen mention on u tube of problem internally with the blue release bar. Is it possible the blue release bar is not engaging fully with the mechanism within the   Ball arm itself? Suggestions appreciated