If you Put 12 Volts on Brake Output Circuit Should Trailer Brake Assemblies Make Noise

Question

Question:

I am trying to troubleshoot my brakes on my car trailer . It has 3 7000 lb axles with brakes on all 3 axles. If i connect a 12v battery to the blue and white wire of my 7 way plug should i hear the magnets engage on the drums ?

asked by: George D

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Expert Reply:

If you connect 12 volts to the blue wire of your trailer wiring you should hear the brake magnets click and then hum. If you aren't hearing that you have a wiring problem which is most likely a bad ground or a short on the blue wire. If you also add the white wire as a ground that would also troubleshoot that.

You'd want to go over the wiring to see if you can find anything that's an obvious problem and fix as needed.

expert reply by: Jameson C

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Answer 1

Yes, the Dexter Disc Brake Kit - 12-1/4" Hub/Rotor - Grease - 8 on 6-1/2 - E-Coat #K71-694-695-10 that you referenced does fit your 7k Dexter axles. You'd need a quantity of two of these since you have a tandem axle setup and this is enough…

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Answer 2

I'm assuming you currently have electric brakes on your 5th wheel. The #KOD33FR and #HSE7K-T1 you looked at will fit your axles. Between the two, I recommend going with the Hydrastar Disc Brake Kit since it includes everything you need for a full…

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Answer 3

We can definitely get your 2019 Grand Design Solitude 2930RL set up with disc brakes, and to do so you'll need the hub-and-rotor disc brake kit, as well as an electric over hydraulic actuator. Converting to electric-over-hydraulic brakes is a…

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Answer 4

Hey Kevin, so this is a very valid question but the integrated brake controller of your 2024 GMC Sierra 3500 has a hydraulic mode which allows it to be compatible with EOH actuators like the Hydrastar kit part #HSE7K-T1 that you are interested in so…

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Answer 5

You can use the Kodiak Ceramic Brake Pads, part #K250CP, as a replacement for the pads of the HydraStar Disc Brake Kit, part #HSE7K-T1.

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Answer 6

In order to convert your 2022 Grand Design Momentum 5w toy hauler from drum brakes to disk brakes, it depends on if you have triple 7k axles or tandem 7k axles. For a complete kit for both options, I recommend the following parts: - HydraStar Disc…

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Answer 7

While the individual components of the Hydrastar Disc Brake Kit #HSE7K-T1 are not commonly found at most automotive stores they are available from several of their distributors nationwide such as TexTrail and Redneck. There are several more smaller…

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Answer 8

It sounds like you're trying to decide between the #HSE7K-T1SO and the #HSE7K-T1 for your 2017 Jayco North Point. I recommend the #HSE7K-T1SO with the over-the-hub rotors for the cost savings. There is no real difference between the two aside…

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Answer 9

Yes, the Hydrastar Disc Brake Kit #HSE7K-T1 will also work with the 6,600LB Dexter axles under your Grand Design. You likely have 7,000lb axles but the spring perches were most likely moved to a position where they had to de-rate the axle due to the…

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Answer 10

Sounds like you are asking for a grease recommendation to use with your Hydrastar kit part #HSE7K-T1. For that the best option is the LMX Red grease part #L11390 which comes in a cartridge for your grease gun. This is the most durable grease that is…

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Answer 11

Thank you for the photo! I was able to reach out to my contact at Dexter Axle who confirmed that the hubs use a #25580 inner bearing, #02475 outer bearing, and a 10-36 (part #RG06-070) grease seal. Since we have this info now we can make sure the…

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Answer 12

Yes, your Lippert 7,000 lb axles are absolutely compatible with the HydraStar Disc Brake Kit with Actuator for Tandem Axle Trailers #HSE7K-T1. This kit is going to give you the best possible braking set up for your trailer, with the responsiveness of…

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If you Put 12 Volts on Brake Output Circuit Should Trailer Brake Assemblies Make Noise

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