Brian Gaff wrote

Proper oil, not wd 40.

Nope that attracts dirt.

Oh and push pull the loop bit
a bit and give it a major clout.

Use powdered graphite

However if it does unlock, I'd most certainly replace it.

"JoeJoe" wrote in message
o.uk...
Garden shed padlock is refusing to badge.

It is (or at least looks like) one of these:
https://www.masterlock.eu/home-personal/product/170EURD

Had it for 10+ years, giving it a quirt of WD40 every couple of years.

In the last couple of months it was a bit tricky to open - had to
pull/push key in/out slightly until it would turn.

Today it would not turn at all - key goes in, and nothing more. I tried
the other two keys we have, but still nothing.

Not too bothered about replacing it, but Before I get hold of the
neighbour's bolt cutters, is there anything else I can try?