wrote in message
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Hi Hartley,

I have a leaky jack from a 2001 Cobra trailer. Not sure if that is
considered old or new. Not sure where it leaks from, but I refill it
and it works ok for a variable period of time. Have considered
replacing it, but have not gotten around to it yet.

WD

Hi WD:

If you can, it would be helpful to try to locate the leak.
Next time you see a trace of leaking, wrap a half sheet of paper towel
around the piston which is driven by the foot lever. Wrap another around the
release valve stem (the lever that allows collapse) . With the jack
collapsed, as for storage, close the relese valve. Check frequently and one
of them will be oily.
Does it collapse in the raised position with weight on it? (this might
signify another problem altogether)
Let me know what you find.

Thanks

Hartley