Reverse Lockout Solenoid Kit for Demco Hydraulic Brake Actuator # DM72VR

Question

Question:

Hello, I would like to purchase this Reverse lock out solenoid kit DM5837 for my Demco Surge Brake actuator DA70, item# DM72VR and I wanted to make sure that the solenoid and cover are compatible with that model actuator. Thank you!

asked by: Dustin B

0

Expert Reply:

You will need the Reverse Lockout Solenoid Kit # DM5836 for the Demco Hydraulic Brake Actuator # DM72VR. I have included a install video below showing the installation of the solenoid kit on this actuator.

The Kit # DM5837 you found is for Demco models DA10 and DA91 hydraulic trailer brake actuators.

expert reply by: Bud M

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Answer 1

Hello Bob, For your Demco DA70 actuator use the Reverse Lockout Solenoid #DM11993. The difference between this and #DM5837 is that the latter comes with a cover.

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Answer 2

The biggest difference between the servo styles that you'll notice is between free backing plates and the others. The free-backing plates will allow your trailer to back up without having the brakes lock up. With surge brakes typically when you…

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Answer 3

Since the Demco Hydraulic Brake Actuator #DM8759812 is a DA91 actuator the Reverse Lockout Solenoid Kit #DM5837 will fit. I confirmed this with my contact at Demco.

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Answer 4

I can tell you how to go about determining if the Demco Hydraulic Trailer Brake Actuator - Drum Brakes #DM72VR will fit, but we wouldn't know off-hand an actuator fit on a 1985 EZ-Loader boat trailer. Finding out is really simple though, as the…

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Answer 5

It sounds like your reverse lockout solenoid is not working properly. You can use the Replacement Solenoid Valve for Titan Brake Actuators with Reverse Lockouts #T4748800 or the slightly better designed Demco #DM5837. You will wire one side of the…

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Answer 6

Hi Bob, The Hydraulic Trailer Brake Kit - Uni-Servo - 10" - Left and Right Hand Assemblies - 3,500 lbs #AKUBRK-35 are not free-backing. So you would need to install a solenoid like the Demco #DM11993.

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Answer 7

Demco surge brake actuators require a Reverse Lockout Solenoid #DM11993. They do not have the ability to use a reverse lockout key.

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Answer 8

You can add a Manual Reverse Lockout Kit #DM5939 or Electric Reverse Lockout Solenoid Kit #DM5837 to the Demco Hydraulic Brake Actuator #DM8509612 to get the DA91 surge coupler with a reverse lockout.

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Answer 9

The Lockout Solenoid Kit #DM5837 you referenced is not designed to fit the DA86 model of Demco actuators, which is the part #DM8608601 you referenced. There is an alternative option for a similar hydraulic drum brake actuator with a lockout that I…

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Answer 10

You are correct, pushing the trailer with the #DM72VR uphill will cause the brakes to activate so this will be a problem. Typically you could add an electric lockout using the #DM5836, but since you are pushing it forward you would need some custom…

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Answer 11

The Demco Hydraulic Trailer Brake Actuator part #DM72VR should be a direct replacement for the Atwood 61101 Brake Actuator that you have now. This newest updated it rated at 7K instead of 6K. This is a bolt on option that mounts on 3" centers.…

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Answer 12

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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Reverse Lockout Solenoid Kit for Demco Hydraulic Brake Actuator # DM72VR

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