763 "fan Belt squeal?"

[carl johansson]

Ok Guys, i am running a 763 with about 2000 hours on it. I did an engine switch on it about 6 months ago. Today - when I went to about 2/3 throttle - it started to squeal - sounded just like a car fan belt squeal. It stops - but show up again anytime I turn right - and occasionally when I turn left. Anybody ever heard this - and have a solution for me? it's a bit tough to diagnose because the machine has to be moving - at 2/3 throttle or more to create the sound - so it's not like I can open it up and look for the source! Carl Johansson Fresno Ca

 

[thetool]

If it's doing it under drive load, it's probably your main drive belt. Ther'es a procedure for tightening it that differs a little depending on serial number, but give it a feel, and it should be pretty tight.
When you look, it will be plain how to tighten it up. Tighten it up a little and see if your squeal goes away.
Good Luck