|
Thanks Paul. For your information, I sent the following message to Chis Losey, which includes some facts I didn't have until today. I appreciate your help. (To Chris Losey) I have been referred to you for advice on this problem. Following is a message I posted on the "Yesterday's Tractors" website, with a reply that came in shortly afterward. "I'm having trouble removing the front axle pivot pin on my Oliver 550. For some reason there is nothing in the Front End section my service manual on the 550 or any other "xx0" models, which differ in that the front axle is braced by long stay rods attached to the frame in ball joints. I know the pin is not frozen because I can rotate it a little in each direction, and can even move the pin in and out about a quarter of an inch--but something is holding it so strongly my puller won't budge it. (I did take out the set screw). If anyone has pulled a 550 pivot pin and can give me a tip, I'd be very grateful." "That came up over a year ago. Someone else was having a hard time with theirs. They used heat, penatrating oil, etc.,,, can't remember what they finally did to get it out. One thing I found in the archives is that pin is not strait. It has a 5� angle so that the top of the front axle is closer t o the engine than the bottom. Mabybe there is some stress on the axle because of the tension and you have to support it. Ask Chris Losey over at the Oliver Gang web page. He did his before." Today I learned a little more. The set screw in the Parts Manual appears to have a smaller diameter on its end, perhaps a half inch long. Today, I took another look into the hole and found that there is something in there--probably the small diameter part of the set screw which has broken off. I tried to drill it for an Easy Out, but my drill won't touch it--it's probably hardened. I used a center punch to make a dimple fot the drill bit, and moved the piece a little deeper into the hole, to a section that does not appear to be threaded. I'm guessing the tractor took a bad hit to the front axle before I got it. The boss which is supposed to be welded on the front side in the center of the axle had broken loose, and someone tried to weld it to the front frame. It didn't hold, and that is my whole reason for wanting to get the pivot pin out. The boss rotated, rubbed and damaged the hydraulic pump shaft for my Oliver 588 loader. I figure the tip of the set screw broke off when the boss did. So here I am. I need to re-attach the boss, but can't get the axle out because the pivot pin is locked by a broken piece of the set screw, and I can't find a way to remove it. If all else fails I can have the boss welded to the axle without taking it off, but I want to inspect for further damage. Can you give me any advice? Thanks, Bob [email protected]
|
