Whatever you do, take your time don't get too heavy handed. I had a similar situation with mine when I got it – it had been left in a shed to rot and was seized. After using WD40 for a bit I tried a large lever arm ….. and broke the casting.
Replacements are are hard to get and expensive. People who have one for sale know this. I ended up repairing mine but it was tricky and time-consuming but did work very well in the end. Much better not to break it in the first place
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You could drop it in a bucket of WD40 and go on that round-the-world trip you've been promising the wife.
Edited By OMG on 27/11/2013 00:45:17