I have a 2005 ck35 komatsu. Machine starts and stalls and will only stay running if you hold the key in start position(starter doesn't continue to run) when key is in "off" it beeps continuously. Any ideas? I'm thinking bad ignition switch. I cleaned and checked connections.
I think you are on the right track. My sk820-5N is pretty simple like the the CK35 so you should just stick to the KISS method.