Fixing a Dexter Electric Over Hydraulic Brake Actuator that Pulses

Question

Question:

Is the Chevy Ford adapter part number 4845900 is it for if a Dexter actuator is pulsating

asked by: Edward F

0

Expert Reply:

Adapters like the Titan BrakeRite SD Adatper, part # T4845900, will help keep electric over hydraulic actuator from pulsing. When a truck's integrated brake controller isn't compatible with EOH brakes the verification signal it sends back to the brakes reaches the actuator causing its motor to activate. In time this will cause the motor to wear out.

With that being said you have a Dexter actuator and we've never tested the BrakeRite SD adapter on a Dexter. Neither has Titan. We've been told that another adapter, the HydraStar, part # HBA-CAM, does work on Dexter actuators but we've never tested it ourselves. HydraStar can't confirm this either but if I were going to choose one to try it would be the HydraStar.

expert reply by: Charles S

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Answer 1

We do have a wiring diagram for you! Whether you have the 1,000 psi Dexter DX Series #K71-650 or the 1,600 psi Dexter DX Series #K71-651 the wiring will be the exact same. I have attached a wiring diagram and review videos for you to check out. Just…

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Answer 2

The adapters which allow you to use factory brake controllers with electric over hydraulic brake actuators are not brand or make/model specific. Therefore you can use the HydraStar Electric Over Hydraulic Actuator Adapter Module part #HBA-CAM with…

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Answer 3

If you have a Titan BrakeRite Electric-Hydraulic Actuator for Disc Brakes like part #T4813102 installed there is a way you can troubleshoot the system to make sure it is faulty before replacing it. You would perform a 3 wire test. You will need a 12…

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Answer 4

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…

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Answer 5

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 6

You can check the condition of your hub's races by carefully removing all bearing grease with a rag to expose the actual surface of the races. When they are completely free of grease, etc., inspect them for any signs of scoring (very slight…

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Answer 7

According to the folks at Hydrastar, what you have occurring is caused by the incompatibility of pre 2019 GM OEM brake controllers with the actuators used by electric over hydraulic braking systems which leads to inconsistent braking performance.…

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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

Since the factory brake controller on your 2014 Ram 3500 has an electric over hydraulic mode, it should work just fine with the Dexter actuator. But since it isn't there are some things you can try. First, check to see if you have to have the…

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Answer 10

It could be as simple as a loose connection or dirty/corroded connector or even a problem with the brake magnets. There are a few quick tests you can do to determine where the problem is. Start by first disconnecting the trailer. Then move on to the…

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Answer 11

Your Dexter electric over hydraulic actuator like #K71-650 shouldn't be connected to your auxiliary battery. It should be powered by the trailer connection from the tow vehicle and the only battery connection should be the breakaway battery that…

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Answer 12

First thing I would do is test the wiring of the Dexter Electric Over Hydraulic Brake Actuator #K71-651. Connect the trailer to your tow vehicle so that the actuator pulsates like you said it was doing and then probe the blue wire with a circuit…

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