Troubleshooting Dexter Electric Over Hydraulic Actuator that Runs When Disconnected
Question:
I have a 2003 Ford F350 pulling a 2014 Cimarron Horse trailer. It has Dexter electric over hydraulic disc brakes. I have had to disconnect the power source for the pump to stop it from running. It doesnt do it all the time. I was told a low voltage in the battery system would do this but have had the charging system for both truck and trailer checked. Both are 100. It has happened while traveling I pull in to get diesel and the pump is still running when the engine is off as well as when parked and hooked to 120 volt land line I have walked out to the barn and had it running, no truck hooked up
asked by: Jeff C
Expert Reply:
It sounds like there is a short somewhere in your trailer wiring that is causing the # K71-651 to run. Unless the actuator itself has an internal problem the only way it is going to activate is if it senses that a truck is connected.
The black wire of the actuator is what powers it. Most likely what is happening is that there is a short somewhere on this circuit from your breakaway battery circuit. I would go out there at test to see if there is 12 volts of power on the black wire without a truck connected. If so then you know there is a short somewhere between those two circuits which is causing the actuator to run.
Product Page this Question was Asked From
Dexter DX Series Electric Over Hydraulic Brake Actuator for Disc Brakes - 1,600 psi
- Brake Actuator
- Electric-Hydraulic Brake Actuator
- 1600 psi
- Disc Brakes
- Dexter
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