Is it Possible to Lock Out the Demco Hydraulic Brake Actuator # DM8609502 For Use with Elec Brakes

Question

Question:

Hi, We currently use this surge actuator DM8609502 on a customized trailer for our equipment and we have a customer that is interested in an electric brake setup versus the surge brake setup. Unfortunately time is of the essence and the customer cannot wait for a new electric trailer to come off assembly. I spoke to our axle/hub vendor and we can easily swap out the current axle/surge brakes for the electric brake hub setup, but what if any would be the best coarse of action for adapting this actuator and coupler we use the 2inch ball to work as a fixed mount as the A-frame mount has been welded to the frame. The customer does have a stock trailer electric brake setup on his truck. Thanks for any help possible!

asked by: Adam S

0

Expert Reply:

Basically you need to lock the outer sleeve of the Demco Hydraulic Brake Actuator # DM8609502 to the inner sleeve to prevent the two from moving. You could run a large bolt through all of the pieces to allow this to happen or some will weld the pieces together.

expert reply by: Jameson C

0

Answer 1

The Demco Hydraulic Brake Actuator #DM8609502 measures 4 inches at the smaller opening and 15.313 inches at the larger opening. This actuator is for drum brakes, is rated for 8,000 pounds towing, and is made in the USA.

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Answer 2

I do have an option for you but we don't carry replacement brake servos for Atwood Hydraulic Trailer Brakes as they have been discontinued by the manufacturer. Therefore, you will need to replace the entire assemblies and for this I recommend the…

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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

Demco Hydraulic Drum Brake Actuator #DM8609502 is a standard 50-degree A-frame coupler-actuator rated for 8000-lbs trailer weight as you noted. It has a primed finish and is intended for weld-on installation. I went to our warehouse and measured the…

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Answer 5

In terms of capability the Dexter DX7.5L A-60 Brake Actuator w Electric Lockout - Bolt On - Disc - 2" Ball - Zinc - 7.5K #DX89FR is a good replacement option. The problem is the design of your old TDE LP7000 which was installed inside the tongue…

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Answer 6

Trailer wheel bearings are specific to the spindle that is installed on the axle that is on your trailer. You will need to safely support the trailer, remove the wheel and tire, remove the grease cap, remove the cotter pin and washer that secures the…

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Answer 7

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

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Answer 8

Hey Al, so we have a solution but since disc brakes require a higher PSI than drum the #DM62VR would not work on drum brakes. Instead you'd want to go with the part #DM72VR which is basically the exact same thing but made for drum brakes. You can…

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Answer 9

For a lighter A-frame trailer to add a surge brake setup the best option is the part #T2492800 which has a 6k capacity. But as long as you have properly rated brake assemblies on your trailer it will still work fine on a 2,000 lb trailer. I attached…

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Answer 10

If you are wanting to replace the entire surge brake actuator on your Four Winns Horizon 190 boat trailer then I have exactly what you will need. I recommend using the Dexter Disc Brake Actuator part #099-175-20. This actuator works with 2"…

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