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Farm Machinery
Classic Machinery
Massey 690 brakes suddenly fail
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<blockquote data-quote="Cowabunga" data-source="post: 8343126" data-attributes="member: 718"><p>The problem is that on this tractor the brakes are hydraulically actuated. In itself not an issue except that it is now a very old tractor, which means all the seals and indeed the pipework, both steel and re-enforced flexible rubber, are now perishing with that age. Since these tractors depend on rear wheel braking and have only one circuit, a failure in that circuit can result in total brake failure, which has the potential to be catastrophic.</p><p></p><p>Yes, I know it has separate left and right brakes, but only one small fluid reservoir feeding both.</p><p></p><p>I reckon the system should be comprehensively inspected with master and slave cylinder seals changed and any corroded, chafed, cracked or otherwise slightly dodgy pipes changed out and re-secured while the initial issue is being seen to. It is, after all, the best part of 40 years old. To put some perspective on its age, a 40 year old tractor when this was built around 1983 would have likely been a Standard Fordson TVO or a Field Marshall.</p></blockquote><p></p>
[QUOTE="Cowabunga, post: 8343126, member: 718"] The problem is that on this tractor the brakes are hydraulically actuated. In itself not an issue except that it is now a very old tractor, which means all the seals and indeed the pipework, both steel and re-enforced flexible rubber, are now perishing with that age. Since these tractors depend on rear wheel braking and have only one circuit, a failure in that circuit can result in total brake failure, which has the potential to be catastrophic. Yes, I know it has separate left and right brakes, but only one small fluid reservoir feeding both. I reckon the system should be comprehensively inspected with master and slave cylinder seals changed and any corroded, chafed, cracked or otherwise slightly dodgy pipes changed out and re-secured while the initial issue is being seen to. It is, after all, the best part of 40 years old. To put some perspective on its age, a 40 year old tractor when this was built around 1983 would have likely been a Standard Fordson TVO or a Field Marshall. [/QUOTE]
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Massey 690 brakes suddenly fail
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