Simon,
> When, over time, the greese dissapears and/or looses its
> characteristics, resistance builds up and pulls the leg a bit . The roll
> rolls itself up on the axis, each time the lid is opened and closed.
> Because of this, the resistance gets even bigger and bigger and the leg
> is pulled with more force, until eventually it springs loose.
This sounds plausible to me. I'm doing a couple of machines at the moment
and I will try your repair to the hinges and see what happens.
Many thanks,
Joel.
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