the only tool you need is a 13 spanner
1.remove the front cover-it just pulls off
2. remove the metal piece at the bottom..1 bolt on top 2 at sides
3. theres an orange button that resets the sys in conjuction with the on/of switch..if youre incredibly lucky thats it..
4..otherwise,loosen the nut near the bottom left- its facing you..its a bit awkward (a 13 socket would be better, i only have a spanner)..this releases the air..put a small jar undernath to catch the oil that comes out- you can easily get 1/2 pint...when you press the reset (orange) button it should start for a while, then prob lock again..
5. repeat this many times..sometimes 10 times, eventually the air will release.
be sure you have it going for at least 5 mins before pitting back cover
good luck
ps dont forgy a cloth/paper for the floor area
v. amateur, but can co it!
December 2008