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645B Brake Question
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Amos View Drop Down
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Joined: 11 Sep 2009
Location: Ontario
Points: 1301 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Amos Quote  Post ReplyReply Direct Link To This Post Topic: 645B Brake Question
    Posted: 08 Jan 2015 at 1:08pm
I am wondering, as I have to overhaul the entire brake system on my 645, if I can eliminate the valve on the transmission from the hydraulic portion of the brake system and use an air cylinder to disengage the transmission rather than the hydraulic brakes. Doing so would prevent the cross contamination of the brake fluid and transmission oil. Is the spool in this valve easily adaptable to attaching and air cylinder? I don't have my loader in the shop, but I do have to replace all the wheel cylinders as they are leaking and the master cylinders are weeping a bit as well. Just wanting to have the parts here to go at it as opposed to having to find them when it is in the shop and possibly holding up the shop space for a few days is all.
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DiyDave View Drop Down
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Joined: 11 Sep 2009
Location: Gambrills, MD
Points: 50546 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 08 Jan 2015 at 5:51pm
Look for an air over hydraulic valve.  Surpluscenter.com might have 'em...
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Points: 1301 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Amos Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jan 2015 at 6:03pm
Good idea Dave, thanks
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DiyDave View Drop Down
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Points: 50546 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DiyDave Quote  Post ReplyReply Direct Link To This Post Posted: 09 Jan 2015 at 6:19pm
Might also work, with a solenoid, and a brake light switch...
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