|
G/MAN
05-06-2007 12:53:04
|
|
Re: dynamometer test in reply to 4010 Pride, 05-05-2007 17:49:56
|
|
| |
Most dealers have some sort of flat charge for time on a dyno. Some use it, some don't. If you do business their regularly and aren't just some random guy they've never seen before, they might not charge you at all. If they have to wheel the dyno outside, hook it up and so forth, they're probably going to charge you. If you can wait, you might ask them if they could call you when it's already out or something if that would make it cheaper or free. Most shops charge to offset the cost of wear and tear and maintenance on the dyno, which will wear out eventually and they are NOT cheap to fix, so it's understandable. They also have to pull a technician off another paying job to do it. K.B.-826 mentioned pulling for at least a half-hour. That would be ideal I suppose, but I can almost certainly guarantee they'll charge you then, and maybe over and above their normal fee, because they will have most of an hour at least in the job, maybe more. And then they may want to open a work order and charge you shop rate if you want adjustments made, and that's understandable too. If you drive the tractor in and it's already warmed up, it will only take a few minutes to run it and check horsepower, if that's all your interested in. Checking for leaks and the like can just as easily be done by taking the tractor to the field and working it. My advice? Borrow or rent a photo-tach or direct-reading electronic tach and a service manual, so you can accurately check and adjust your idle speeds BEFORE you get the tractor on the dyno, which will save them time and you money. The only way to accurately set the idle speeds is by measure PTO shaft speed or checking the speed right at the crankshaft. The speed-hour meter in the dash simply isn't accurate enough, and if the high-idle speed is low, it can throw your horsepower numbers off. I frequently have to grab tools and adjust idle speeds on tractors when they're on the dyno, and it just draws out the whole process.
|
|
|
