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Disabled machine parking brake release
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<blockquote data-quote="Voit" data-source="post: 125110" data-attributes="member: 22631"><p>I can't find anything that relates to any emergency release mechanism. This machine has EH controls so all electro-hydraulic actuation. Looking at the drive motor assembly drawings I don't see any mechanical release. Access to get to them would be an issue even if there was a bolt (like an air brake can might have). In looking at the hydraulic circuit diagram, it looks like the drive motors have specific hydraulic lines to them for releasing the brake(s). So other than adding a way to pressurize (hand pump) and hold pressure in the circuit the brakes will be locked. The circuit is likely normally open so it would need a hand valve added as well. I cant believe there no way to override the parking brake.</p></blockquote><p></p>
[QUOTE="Voit, post: 125110, member: 22631"] I can't find anything that relates to any emergency release mechanism. This machine has EH controls so all electro-hydraulic actuation. Looking at the drive motor assembly drawings I don't see any mechanical release. Access to get to them would be an issue even if there was a bolt (like an air brake can might have). In looking at the hydraulic circuit diagram, it looks like the drive motors have specific hydraulic lines to them for releasing the brake(s). So other than adding a way to pressurize (hand pump) and hold pressure in the circuit the brakes will be locked. The circuit is likely normally open so it would need a hand valve added as well. I cant believe there no way to override the parking brake. [/QUOTE]
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Disabled machine parking brake release
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