Manual Lock Out Disc Brake Actuator Rated for 7k and for 2 inch Ball

Question

Question:

Are there any 2 ball, disk brake actuators, 7000 Lb, with manual reverse lockout? I move my boat trailer, with a small tractor that has no backup lights around the yard.

asked by: James S

1

Helpful Expert Reply:

We have the Demco Disc Brake Actuator part # DM8669113 which fits a 2 inch ball and can be manually locked out with the part # DM5939. This has an 8k capacity and is only option that covers everything you are looking for.

expert reply by: Jameson C

1

Answer 1

You can convert surge brakes to an electric over hydraulic braking system. To do this, you will need an electric over hydraulic actuator and a brake controller. For an electric over hydraulic actuator, I recommend looking at the Carlisle HydraStar…

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Answer 2

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 3

The manual lockout on your Atwood 85778 surge brake coupler is there so that you can back up the trailer without the brakes locking up on you. Yes you can safely tow your trailer with the broken manual lockout, you just have to make sure you…

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Answer 4

Hey Richard, thanks for reaching out! The Dexter DX7.5 Drop-N-Go Brake Actuator #099-175-00 is a great option for a replacement actuator because it's a direct replacement for the common Model 60 actuators that were popular in the '90s.…

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Answer 5

First you will need to remove the old hydraulic equipment. Remove the surge coupler or actuator, remove all the lines, and finally remove the brake assemblies. If you have 10 inch diameter hub and drums, you may need to replace those as well. If you…

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Answer 6

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 7

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 8

In order to verify the spindle dimensions so that you can pick out the correct hub/drum you have to get exact dimensions. For that you need to use a digital caliper like part #PTW80157. For how old your trailer is this is especially important as the…

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Answer 9

Traditionally, trailer manufacturers did not use electric brakes on boat trailers because the brake magnet wiring and trailer wiring did not always have the best insulation or water protection. These days, more and more manufacturers are using…

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Answer 10

Thank you for the pictures of your coupler. You are going to need to replace your entire surge actuator coupler as the A-50 is obsolete and we do not have any parts to repair it. We have the Dexter DX7.5L A-60 Brake Actuator #DX73FR which you can…

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Answer 11

Thanks for the information and photo, Kenneth! It looks like your trailer is equipped with 3,500 lb axles so to replace your bearings and seals you need the kit #BK2-100, but it also looks like you have an older disc brake kit with a design that…

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Answer 12

The Dexter DX Series #K71-651 and the Hydrastar Vented Marine #HS381-8067 are more comparable as they both have hardwire installations (just made by different manufacturers) while the Dexter BrakeRite II #T4813102 is more of a…

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Manual Lock Out Disc Brake Actuator Rated for 7k and for 2 inch Ball

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