Troubleshooting Brakes Locking Up When Backing on New Tandem Axle Trailer

Question

Question:

I have a tandom trailer new when you go to backup the brakes lockup and I do not what to.

asked by: Chuck L

0

Expert Reply:

It sounds like your new tandem axle trailer has a surge brake coupler. You will need to use the manual lockout on the coupler if there is one or add a Replacement Solenoid Valve for Titan Brake Actuators with Reverse Lockouts # T4748800. This electric lockout connects to a 5-way trailer plug like # HM47890, and an adapter like the Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter # 20036 will connect to the reverse light circuit at your tail light to send a signal to that solenoid to lock out the braking function so you can back up freely.

If you do not have surge brakes, then there is most likely a wiring connection that is wrong on your trailer or vehicle to engage the trailer brakes when you back up. I recommend first cleaning the connections on both ends and then testing the pins for proper function. I've attached an article to assist as well as a photo.

Your other option is to use free backing brake assemblies if you have hydraulic brakes. I recommend # AKFBBRK-35 if you have 10 inch brakes or # AKFBBRK-7 for 12 inch brakes.

expert reply by: Jason S

0

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Answer 1

Since your brake controller appears to be working - 3 of the 4 trailer brake assemblies work correctly - the issue is likely to be on the trailer side. The issue with one of your four brake assemblies locking up could be due to it needing adjustment…

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Answer 2

If you are looking at and LED Trailer Tail Light like part #STL8RB, then you will not need a converter to make it compatible with the 4-Way Wiring Harness on your truck. You will need to figure out the wiring on your trailer to make sure that you get…

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Answer 3

If there's no power being delivered to the trailer's brakes, with the trailer unplugged from the tow vehicle and the breakaway system battery removed, you're looking at a mechanical problem, not an electrical problem. Give the brake…

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Answer 4

Having already done adjustments and replaced multiple parts, you've really ruled out potential mechanical causes here. A next step would be to look at the electrical side of things. Specifically I would look at connection points in the wiring on…

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Answer 5

If your trailer has 7 wires running all the way back to the brakes, then yes, you can tap into the existing wiring. Each of your new brakes will have two wires for the brake magnet. One wire is for 12 volt power to the brake magnets and the other…

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Answer 6

Brake magnets such as the Replacement Magnet Kit #AKBRKR-M12 on trailer electric brake assemblies are non-polarized. When installing an electric brake assembly, like the Right Hand 12" #AKEBRK-7R-SA, either wire can be used for the brake signal…

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Answer 7

Since heat rises I would at the very least put a set of the Trailer Vents #HMAV2-AVT2 near the top of the trailer to get the hottest air of the trailer out. What you could do for maximum air flow in your trailer is have a set facing forward in the…

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Answer 8

In order to run both AC outlets and DC lights off shore power in your ATC Enclosed Trailer you will actually need a AC/DC distribution panel, not a power converter. For this, I recommend using Progressive Dynamics Inteli-Power AC/DC Distribution…

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Answer 9

With surge brakes, you have a brake actuator applying the needed pressure to the brakes but to be able to back up you will need to have a manual lockout or an electric lockout solenoid, like #T4748800, which will close when you shift the vehicle into…

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Answer 10

For DC electricity, I can help you out. You can run a 10 gauge wire like #10-1-1 sold by the foot from a 6-way or 7-way connection from the 12V to a deep cycle 12V battery and then run the battery to a ground on the trailer. You can use a solenoid…

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Answer 11

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 12

The 5.30-12 tires, being wider, are going to make more contact with the road. This means that the noise, and heat build up will be higher than a 4.80-12 tire but the rolling resistance will actually be less because the tire is larger diameter. The…

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Troubleshooting Brakes Locking Up When Backing on New Tandem Axle Trailer

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