Re: F-20 Brakes

Posted by Dave in GA on September 02, 2003 at 04:56:38 from (163.246.18.120):

In Reply to: F-20 Brakes posted by Eric Hosette on September 01, 2003 at 15:33:44:

Getting those dust covers off is usually difficult. I just completed overhauling both brakes on an F-20 and the dust cover removal was the worst part. It's a must to spray PB Blaster or a similar product around the edge, letting it soak in. There's probably rust built up in there. Then I'll take a piece of steel bar with a large flat edge (like a large screwdriver) and start to hammer the cover around the edges. It will scratch and mangle the edge somewhat, but it can be made like-new later. While it's easy to hammer around the top edge, it's hard to get to the bottom edge. The cover will need to start coming off evenly all the way around, or else you won't be able to get it off. The hammering will take a long time and a lot of patience. If you get too frustrated, don't beat up the tractor with a sledge hammer of kick the cat. Just stop and return later to resume the job.

One tool that I used that helped a lot is a slide hammer puller. I'll attach the end to an eye bolt that I put on one of the cover's bolt holes, then use a short piece of heavy chain from the bolt to the puller. Using the puller lightly, it does pull the cover gradually. Then I'll attach the puller to the opposite bolt hole and use it there for awhile, and go back and forth. I've yet to break off or bend one of those cover mounting brackets. They seem to be solidly welded to the covers. Using the puller and the hammer/bar alternately, and after spraying more penetrating fluid, the cover will eventually come off.

The last cover I removed had a lot of rust built up underneath it. While trying to remove the cover, I found it necessary to use a baby sledge and a wood block to strike the mounting brackets on the top or bottom of them to turn (rotate) the cover a little. I got it to turn to the left a few inches, then to the right a few inches. This loosened up the rust that was binding under the cover. Then more PB Blaster.

Exercise LOTS of patience, and good luck.

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