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10-13-2019, 11:21 PM
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#1
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Junior Member
Join Date: Oct 2019
Posts: 2
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5th wheel brakes
We have a Cardinal/America made by Forrest River with disc brakes and electric over hydraulic braking system on the tandem whees. One side begins braking before the other, it can be felt from the truck, the braking release does the same.
It has all new calipers and pads, good clean rotors, repacked wheel bearings, new axles and springs, air bag suspension, new tires, proper tire inflation, within the load limit, brake fluid level ok. Hydraulic motor/pump starts up with brake application. It has done this since purchased new. Wondering why.
Thanks,
Marion
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10-15-2019, 12:38 AM
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#2
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Site Team
Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
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'Braking before the other' side--are you absolutely sure the 'other' side is braking later, or not at all?
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2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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10-15-2019, 12:57 PM
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#3
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Junior Member
Join Date: Oct 2019
Posts: 2
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Towing, braking
Yes both sides of the brakes are coming on because where we live the calipers get surface rust overnite. It is cleaning the rust on both sides of the trailer brakes rotors equally. I am wondering if the problem is like older fuel injection systems, where each line to each cylinder has to be exactly the same length or you have some cylinders getting fuel at the wrong time due to different line length. The brake power unit sets on the left side of the trailer with a single brake fluid line coming from it. So upon brake application the fluid has to travel farther to get to the right wheel calipers and thus a time delay in right side brake application?
Thanks,
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10-15-2019, 08:06 PM
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#4
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Senior Member
Join Date: Oct 2017
Location: Germantown, Tennessee
Posts: 716
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I don't know what your problem might be, but rule out "brake application the fluid has to travel farther to get to the right wheel calipers." The fluid doesn't travel at all, only the pressure travels and it is almost instantaneous. (Assuming no air bubbles)
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Jim and DW 50 years Brenda
2018 40rssa and 2021 Jayco Eagle 40'
2019 F450, ruby red
Harley Road King & sidecar
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10-17-2019, 09:46 PM
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#5
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Site Team
Join Date: Sep 2005
Location: Where we park it
Posts: 2,838
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Disc brake pads run against the disc all the time, they should shed rust just by rotating. Doesn't mean the calipers are applying the pads to stop. If you have gotten some air in the lines somehow might account for unequal pressure at the calipers. Bleed them and see if that helps.
__________________
2016 Tiffin 40 QBH
2015 38RSSA, traded
2005 TK3 #1869, 10 yrs of memories,
2017 F450 KR--one more Ford is it
2009 F450 4x4-died; 2010 F450-retired
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10-21-2019, 04:37 PM
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#6
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Member
Join Date: Jan 2016
Location: Maine
Posts: 55
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Try bleeding the brakes. You could have a bit of air on one side that is overcome if the brake pedal is pushed harder.
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Elliott, Vicky, and Sadie, our GSD
2014 Redwood36RE Titan Disc brakes, 17.5 " Sailun Tires
2013 RAM dually, CTD, Aisin Tranny, CC, LB 4x4
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12-25-2019, 09:18 AM
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#7
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Junior Member
Join Date: Aug 2019
Location: wisconsin
Posts: 14
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bleed brakes lines
1st thing i would do, bleed the brake lines.
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10-24-2020, 11:21 AM
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#8
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Junior Member
Join Date: Oct 2020
Location: Depends on the day or season
Posts: 7
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Sounds like air in the line on the "slow braking" side.
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