I can't quite figure this out. The right hand brake slave cylinder was leaking brake fluid. Honed the cylinder and put in new cups. Cleaned everything up well and reassembled. Dry brakes shoes. Bled the lines and cylinder. Brake peddle had maybe 2 inches of travel before the brake shoes hit the brake drum. Everything seemed just right. The brake drum was free (you could rock it) when the pedal was not pushed and the brake drum was solid when the brake pedal was pushed. I probably had ran close to 10 acres of beans when I thought I smelled a hot brake. Sure enought the right brake was hot and would sizzle when you touched it with water on your fingers. Also, I noticed the brake pedal wouldn't move any. It was clear to the top and you couldn't move it any with your foot.
I let it cool for a couple of hours. Now the brake pedal had the same 2 inches of free travel like it did when I reassembled it and the brake drum was now loose from the brake shoes as you could wobble it slightly.
In 2012 the brake got hot once just like it did today. I let it cool, never used it during harvest, and never had a problem the rest of the season.
Didn't use the brake in 2013.
It is interesting to note that when I bought the combine in 2012, the previous owner had the brake drum wired over the brake shoes. The center splines of the brake drum were gone. Wonder if it got hot and broke out?????
The brake is assembled right. I didn't even use the brake today when it got hot. Never even touched the pedal. I haven't even adjusted the brake shoes up against the brake drum.
It is almost like heat expanded the slave cylinder pushing the shoes out causing more heat. Then 3 hours later everything cools and the slave cylinder retracts allowing the shoes to return, also allowing the brake pedal to move again.
What do I need to do????? Maybe I will depressurize the brake lines by cracking the brake line coupler underneath. Maybe that will let me run tomorrow without it heating up.
Thanks for any ideas.
I let it cool for a couple of hours. Now the brake pedal had the same 2 inches of free travel like it did when I reassembled it and the brake drum was now loose from the brake shoes as you could wobble it slightly.
In 2012 the brake got hot once just like it did today. I let it cool, never used it during harvest, and never had a problem the rest of the season.
Didn't use the brake in 2013.
It is interesting to note that when I bought the combine in 2012, the previous owner had the brake drum wired over the brake shoes. The center splines of the brake drum were gone. Wonder if it got hot and broke out?????
The brake is assembled right. I didn't even use the brake today when it got hot. Never even touched the pedal. I haven't even adjusted the brake shoes up against the brake drum.
It is almost like heat expanded the slave cylinder pushing the shoes out causing more heat. Then 3 hours later everything cools and the slave cylinder retracts allowing the shoes to return, also allowing the brake pedal to move again.
What do I need to do????? Maybe I will depressurize the brake lines by cracking the brake line coupler underneath. Maybe that will let me run tomorrow without it heating up.
Thanks for any ideas.