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Tractor Talk Discussion Forum

multi hoe brake broblems

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Sam

03-30-2004 16:41:20




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Hi everyone, I just bought a multi hoe tractor, It runs but the brakes do not work. A friend told me that they are air over hydrolic brakes. I have no idea what that means. I do have some knowledge about mechanics, but this is my first big machine. If anyone can tell me where to start to look for the problem I would appreciate it. thanks, sam




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jdemaris

03-30-2004 20:02:08




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 Re: multi hoe brake broblems in reply to Sam, 03-30-2004 16:41:20  
Yeah, I've got one. The air over hydraulic was an option. Standard model came with simple non-power hydraulic brakes. One system for each wheel - which I kind of wish I had. Two brake pedals and individual wheel braking. The optional setup does not provide individual braking. There ARE two brake pedals, but both do the same thing - i.e. apply brakesto both wheels. One pedal, however, is connected to transmission disconnect so when you stomp on it, you can also rev the engine up while in gear and it won't try to move. The master cylinder is a common one used on many trucks, same goes for the wheel cylinders. The hydraulic master cylinder bolts to an air-servo. The servo connects to another valve and the air tank reservoir. I've got a book and part numbers if you need it. I just fixed the brakes on mine, and got the wheel cylinders and master cylinder at NAPA. A couple of days after I fixed my brakes I was coming down a steep hill when the the air compressor crapped out. Came to find out that it came, originally, with a fiber drive gear. It blew apart. Went to a Detroit Diesel parts guy and his got me a new replacement that is steel.

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david val

03-31-2004 04:36:44




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 Re: Re: multi hoe brake broblems in reply to jdemaris, 03-30-2004 20:02:08  
hence, first thing to do is to check that there is a working air compressor on the machine...



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