Thank you paulmackellow. I wonder if somebody can help me. I’ve got a kind of switch on the left hand arm/handle with a very thin electric wire leading from it. But when I got the rotavator, it didn’t lead to anywhere and was just wrapped around the bottom of the left arm. From what I can make out on the switch, it says ‘0’ and ‘1’ on it. I’m probably showing my complete ignorance of things mechanichal but what’s this and where should it go? I’m not sure if it’s to be seen on Stuart’s photo althugh I can see a slim wire running along the bottom of the left arm on the first photo but I can’t see a switch.