Can Continuity be Tested on Trailer Brake Magnets to Determine if they Are Good

Question

Question:

Im dealing with 10k dexter axles with electric brakes. Should there be any continuity through the magnet checked at the end of each magnet wire?

asked by: Johnny S

0

Expert Reply:

We have an entire help article dedicated to testing trailer brake magnets that I attached for you to check out. You can test for resistance like you described. There is a specified range of Ohms that should be present depending on brake assembly size. If the assemblies are 10 or 12 inch the range should be 3.0-3.8 Ohms or if the assembly is a 7 inch assembly you'd need to see between 3.8 and 4 Ohms.

expert reply by: Jameson C

0

Answer 1

They sure are. The buzzing or humming sound means that the magnets that grab the armature surface of the brake drum and actuate the brakes are active and are receiving power from the brake controller. The humming noise does not indicate a problem.

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Answer 2

The humming sound you hear from your trailer's electric drum brakes is a good sign. It means that the brakes' magnets are being energized by the output from the trailer brake controller in the vehicle. Most likely your brakes aren't…

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Answer 3

Trailer brake magnets will hum when activated. The wires are also not polarity sensitive so as long as one is grounded and the other has 12 volts you'd be totally fine. Based on what you have described it sounds like your setup is good as-is.

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Answer 4

The humming sound you hear from your trailer's electric drum brakes is a good sign. It means that the brakes' magnets are being energized by the output from the trailer brake controller in the vehicle. The issue with the brakes not applying…

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Answer 5

I would check the magnets for wear before going on to test them with a meter. If the magnets show abnormal wear or if you can see the windings beginning to show through the friction surface of the magnet then they will need to be replaced. To further…

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Answer 6

When trailer drum brakes are activated you should be able to hear a humming sound. I am not quite sure I would describe it as musical, but it sounds like they are functioning on your trailer. Have you tried testing the brakes to see if they function…

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Answer 7

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 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 10

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 11

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 12

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Can Continuity be Tested on Trailer Brake Magnets to Determine if they Are Good

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