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John (UK)
09-12-2006 11:30:49
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Re: Brakes in reply to Richie, 09-12-2006 08:46:49
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No it isn't right, but because you have removed the drum there is nothing to limit the bottom shoe moving more than it normally would. To test it you need to prevent the bottom shoe moving beyond the normal amount of travel if the drum was in place. You need to use a tyre iron or heavy screwdriver against bottom part of the shoe and lodge it under the lip of the brake back plate so the shoe cant move, then press the brake pedal, this should allow the top shoe to move. If it doesn't check that the spacer pins and nuts are not too tight, these are in the centre of the shoe and prevent the shoe from moving sideways. I don't know what the problem with your brakes is that you have the drums off, I suspect that it is just that they are not working, you may find that this is due to the inner joint on the end of the independent brake pedal being seized up. To test this, refit the brake drum and LIFT the independent brake pedals, one at a time, if the rod on either side of the centre housing running up to the cross-shaft through the clutch housing bends, then the inner joint is seized and requires freeing otherwise the brakes will never work. Do not oil the bushes in these pedals as they are self-lube and oil will make them swell. There is a later version of this that has a grease nipple fitted which of course is ok to lube. More than likely someone has also tried to adjust the brake rods in an attempt to adjust the brakes, this does not work, they need resetting. If you need the service information for these brakes, email me at:-
fergusontractors(at)tiscali.co.uk
give me the serial number of the tractor as there are two types of brakes fitted and not from a numerical point, they were fitted indiscriminately. The brake springs have also to be in the correct position or again they wont work, they will not power the brakes in forward motion. In effect what should happen is one shoe should come in contact with the drum and then the other one starts to work because the first shoe is prevented from moving any further, then both shoes start to bite into the drum at the leading edge and you get a servo or self-powering action to apply the brakes, this reduces the amount of pressure you need to apply to the pedal.If the brakes are not assembled correctly or adjusted incorrectly you will not get this action and the brakes will require a lot of pressure on the pedal to make them work, sometimes they will only work in reverse. Mail me if you need information, tell me everything you have done or what is happening.
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