D69U s/n 9U25064 Fan Belt Issue

Take the lock bolt out completely. Roll the hole to the top and fill with penetrating oil. There are a couple bosses on the adjustable side of the pulley. Find someone to hold the fan as you use a long punch and hammer to tap on the bosses to turn the adjustment. As Pete said once they come free they move fairly easy.

Be aware there are two lock bolts and tabs.

The front half is fixed on the hub, probably is cast as one piece. The rear half is adjustable by screwing it counterclockwise back away from the front and then clockwise back toward the front to tighten the belt

I will have to try that trick. Sounds much easier. Thanks much CC!

ccjersey is spot on. The socket trick works well.

I have had good luck using an air hammer; grind down a blunt shank with a rounded tip, and at low setting, you can catch the web on the rear casting to make it spin. Of course, after removing locks, cleaning threads, spraying with good lube and heat if necessary. Probably not recommended, but it gets the job done fairly quick without a lot of swearing and bruised knuckles. Be careful otherwise you can mar the casting or worse, damage it. JM

I have had good luck using an air hammer; grind down a blunt shank with a rounded tip, and at low setting, you can catch the web on the rear casting to make it spin. Of course, after removing locks, cleaning threads, spraying with good lube and heat if necessary. Probably not recommended, but it gets the job done fairly quick without a lot of swearing and bruised knuckles. Be careful otherwise you can mar the casting or worse, damage it. JM