A few weeks ago I bought a service truck that has an Altec D800 crane on it that has a Hetronic wireless remote. The crane seems to work fine with the manual controls but I can't get the wireless remote to do anything. I don't have the model number of the remote with me at the moment but it looks to be fairly simple in design. I'm guessing I'm not doing something right to get it to work. Anybody out there know the procedure to get this to work? What I have tried so far is... It has a key switch mounted below the manual controls. When I switch it on it activates something and the pressure gauge goes up and when I turn the remote on a green light comes on and there is a buzzing noise from the remote but none of the functions work. Any help would be greatly appreciated. Thanks