On 02/04/16 18:34, AnthonyL wrote:
The bottom section of my 3 section loft ladder does not slide
smoothly.

The middle section slides up against the fixed section a treat but the
bottom section seems to have two or three points where it binds and I
can't work out why or how to fix it.

I've tried some silicone spray but the runners are clean anyway.

The ladder is a Youngman New Easyway (sticker says manufactured Week
23/00) similar to


http://www.youngmanaccess.com/uk/vie...siway/31334000

But mine is 100Kg limit.


https://en.wikipedia.org/wiki/Galling

Just idly found the above on google, so could be irrelevant...

Or, could also be galvanic corrosion between steel and aluminium. A
friend had a particular struggle with that on the aluminium seat post
stuck on his steel bicycle frame. Freed using some ammonia, though that
also corrodes aluminium.

--
Adrian C