Brother, I have delt with many many of them. Deere, Cat, doosan/bobcat , libbehr, sennebogen. Case, jcb, genie, They all absofukingloutley suck. Particularly in north America it's fucking pathetic. They shown up in their shiny ass service trucks. Come out with their ego like get out the way I'm a professional you have no business touching this because you are some somenfuckinn shmoe. Then i have spend my entire fucking day babysitting the ignorant punk. To get a bulshit diagnosis that's completely wrong because the guy doesn't even know how to read the damn service information to get it right.

Budy, I kid you not. I had to teach one guy how to use his damn multimeter properly to check continuity on a wire.

If you have a piece of equipment that is internationally made. Like Europe or aisia. Call them instead of the local dealer. I've gotten better and faster results from a 10 min phone call than 8hr day with a local.

Hell I only ever call those dealer guys when it's something I simply can't do, like injector cut out tests or I just don't have time for it and I regret it the second I see the guy roll up.

Not long ago. I had a cat guy come, needed to verify hui pump on a 3126b. Yes it's the pump. I give him okay to swap for a new one. I had one in a spare parts machine with a rebuild motor. I pull out the spare by the time i finish the guy is still trying to get the lines off. Day later after he put it in, the damn thing is falling out oil everywhere. Fuck it's goddam - 20c and a snow storm and we need the machine next morning.