Troubleshooting Dexter Brake Actuator

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Question:

I have a dexter brake actuator and it was install from the factory it will not quit running its like something is ingaged and want stop riunning is this normal I thought it should build up pressure and then stop running

asked by: Steve N

0

Expert Reply:

I spoke with my contact at Dexter and there is a way to troubleshoot your actuator. If you use a 12 volt battery and connect just the white wire from the actuator to the negative post and then connect the black wire to the positive side of the battery, you could possibly hear a click sound but the actuator should not turn on. If it does turn on and run, the unit is defective and needs to be replaced. This would be done without having the blue wire connected.

If you have disc brakes on your trailer, then the part # K71-651 you referenced is the correct replacement.

If you have drum brakes then part # K71-650 is the brake actuator you would need as a replacement.

expert reply by: Jeffrey L

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Answer 1

First thing you will need to do is check that all of the wiring of the actuator and your brake controller are correct. I attached a couple diagrams that should be helpful I spoke with my contact at Dexter and there is a way to troubleshoot your…

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Answer 2

Yes, you have a couple of ways to test the Dexter DX Series Electric Over Hydraulic Brake Actuator #K71-651. The first test to try is to connect the white wire to the negative post of the battery. Then connect the black wire to the positive post on…

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Answer 3

We've found that typically when the problem you have arises the issue is a blown third brake light fuse as this is same circuit as what activates brake controller with brake pedal. So I would check and see if all of your brake lights come on…

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Answer 4

You're not going to have any problems mixing Dexter and Lippert components on trailer axles over 10k-lbs in the same manner as below 10k-lbs as long as the measurements on the replacement parts are the same- i.e. bearing sizes are the same,…

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Answer 5

Many times Dexter hubs will fit on a Lippert axle, but Lippert does have a few axles out there with special spindle sizes. Every Lippert axle comes with a tag or plate on the axle that gives a serial number or NV number. If you can give me that…

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Answer 6

The Dexter E-Z Lube Hub and Drum assembly that would work for your Lippert axles with the bearing and seal numbers you provided is part #42866UC3-EZ. This fits 5200 lb to 7000 lb axles that require a 2-1/4 inch ID grease seal. The drum dimensions…

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Answer 7

The newer factory brake controllers, like on your 2022 Chevy Silverado, are generally fine with an EOH actuator like the Dexter DX Series Electric Over Hydraulic Brake Actuator #K71-651. But there are times when there are issues which is why I…

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Answer 8

That fluid has to be going somewhere! What you can do is have someone activate the manual override on the brake controller in the vehicle cab while checking for leaks. Make sure the reservoir is full though. If it is not leaking at a line or…

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Answer 9

We do not have a Kodiak disc brake caliper cross reference to automotive calipers but for the brake pads there are cross referenced parts. If you refer to the linked image you'll see a partial list of cross-compatibility of brake shoes for…

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Answer 10

When it comes to replacing your Master Cylinder assembly The Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes #DX44FR is the correct part for you. This master cylinder assembly fits most Dexter disc brake actuators in…

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Answer 11

The Replacement Master Cylinder Assembly for Dexter Brake Actuators - Disc Brakes #DX44FR can be used to replace the A-60 master cylinder and is designed to fit on a variety of Dexter/UFP brake actuators.

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Answer 12

The pump should come on when you hit the brakes with your Dexter EOH system. I hope you have the Dexter #K71-651 for disc brakes versus the #K71-650 you asked from which will not work with disc brakes because it won't provide enough pressure.…

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Troubleshooting Dexter Brake Actuator

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