case 300-600 disk brakes

kenbob

Well-known Member
Anybody had any luck in freeing a brake on 300-600 tractors without taking them off. It is the double disk with the plate with balls in the center. Mine is stuck open (probably due to the dust cap missing for ages).
 
Have you pulled the brake covers off to see if grease grunge or dirt has locked the brake linkage? Wasps play mean tricks on brake internals. Let us know what you find. Pics are nice.CM.
 
Could be Wasps! Since I will probably have to take it apart anyway, i sprayed pb blaster in the whole. By the time i parked it for this month it seemed it was moving a little. Probably will spray it full of blaster until it runs out and then if it loosens it, spray it with brake cleaner to try and dry it out. Only trying that as it looks like you have to take the platform out to get the brake covers off. Since I have only a few hours a month to work on it. I am trying anything to avoid taking stuff apart until there is no other way.
 
Easy on the PB blaster. You do not want to make more work for yourself. I had oil soaked brake pads, and shoved them into a bucket of Oil Dry for two days with some remarkable results.Look hard at your differential seals ,and see what shape they are in. CM
 
So when I got the tractor, I noticed lots of caked oil on top of the left axle and inside the back wheel. At first I thought it was an axle seal. THere was no drip on 50 miles of pretty fast driving, but that gasket on the transmission cover where the shift comes out of sloshed a lot of tranny grease out the same side when running at 20 mph. For right now I am thinking since the brake that doesn't work is on the same side as the leak, it is stuck with hardened grease and dust.
 

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