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Bleeding brake lines


Old 06-14-2018, 02:00 PM
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Join Date: Jul 2009
Location: Newburgh, IN/Grand Rapids, MI
My Boat: 08 Sunsation 32 SSR
Posts: 492
Default Bleeding brake lines

I have a tri axel Vanguard trailer with electric over hydraulic brakes and while pulling to Michigan yesterday i lost my brakes about 50 miles from my destination. The inside of the hub and caliper are covered in brake fluid and i could see a trail of fluid on the pavement behind my trailer (had to hit brakes due to sudden slow down of traffic). Brake lines are good and show no breaks/leaks so I assumed I lost a seal/gasket on the caliper piston. So i have ordered a new Kodiak 225 brake caliper and it looks easy enough to install after watching the videos. I have bled the brakes on my old surge brake system but how do you bleed them on the elec./hydraulic? the new caliper will be on the last wheel on the passenger side of the trailer, do i have to work my way through each wheel bleeding out the air or can i just open the valve and pump the brakes until i get fluid out of the new caliper?
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Old 06-14-2018, 02:11 PM
Join Date: Aug 2012
Location: Collierville, TN and Pickwick Lake
My Boat: Cigarette Tiger, Formula, Raysoncraft, Tahiti, Angler
Posts: 1,333

Have someone press the brake pedal or actuate the manual lever to power up the EOH unit. Start at the farthest caliper and work your way forward. It most likely drained the reservoir so you'll need to bleed all calipers.
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Old 06-14-2018, 03:08 PM
Join Date: Oct 2010
Location: Hemlock, MI
My Boat: 2000 Powerquest 380 Avenger
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We just converted friend's trailer to EOH and used a vacuum bleeder (basically a small Mity-Vac). Worked like a charm. Took about 20 min.
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Old 06-15-2018, 02:57 PM
Join Date: Jun 2008
Location: Fond du Lac, WI
My Boat: 08 30 Outlaw 525/XR/ITS/SSM
Posts: 71

only way to bleed brakes... truck, car, trailer
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Old 06-15-2018, 03:20 PM
Join Date: Apr 2014
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If you will be at Buzzard the first of the week I will be there and more than happy to help you, just let me know.
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Old 06-15-2018, 03:32 PM
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Join Date: Oct 2013
Location: SF Bay Area
My Boat: 1997 Baja Islander 272
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Wouldn’t an engine oil extractor pump work as a mitt vac since we all have one laying around anyways?
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Old 06-16-2018, 06:48 PM
Join Date: Jul 2015
Location: Atlantic Southeast
My Boat: '96 Baja 302 O/S
Posts: 733

Hand vacuum bleeder at the farthest caliper and working to the closest to the master cylinder. Followed by actuating the emergency lever manually like you're pumping your truck's brake pedal again from farthest caliper to nearest.

I hope you got the SS Kodiak's the rest are a waste of time and money as they're only going to fail again. I also RTV the outer boot's channel on the caliper and piston as per another member's recommendation here to prevent water intrusion.
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