Removing Atwood Actuator to Install Demco DM72VR

Question

Question:

I have a ATWOOD hydraulic brake actuator 85736 thats welded on the trailer. Do have to have the old hitch cut off with a cutting torch or cut off as close to the weld and install your #DM72VR new bolt on brake actuator?

asked by: Lee B

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Expert Reply:

A cutting torch would work to remove your old actuator to install the Demco part # DM72VR. Or if you have a cutting wheel on a rotary tool that could be used to cut the welds and then maybe a grinder to get it smooth.

expert reply by: Jameson C

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Answer 1

The Optronics #STL72RB and #STL82RCB are identical in size at 6-7/16" long x 2-5/16" tall x 1-3/4" thick and they do use the same shape/style of lens and bulb so it certainly could be used as a replacement. The 72 and 82 in the part…

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Answer 2

It's very common for trailer surge actuators like the #DM72VR to be welded to the frame of the trailer tongue. Welding it from the inside or the outside would be totally fine as long as it's done by a professional and the coupler has the…

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Answer 3

You can certainly go ahead and re use the existing 2 bolts, provided they are in good condition. The fish wire method shown in the video works too, but it is also very common to just use the two bolts like your old Atwood actuator. Personally I would…

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Answer 4

Alghough the Demco #8705001 which we sell as part #DM72VR is meant to be bolted on, it can certainly be welded in place. Because of the zinc plating, you'll want to be sure to do your welding outdoors or in a well-ventilated area. If you MIG or…

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Answer 5

Thanks for the kind words, happy we were able to help, and the photos are also appreciated! As for the actuator, you are correct that the Atwood 85736 master cylinder is no longer available because Atwood was bought out so your best option is going…

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Answer 6

Email me back with them and I can see what would work best.

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Answer 7

Since replacement parts for your actuator are obsolete, your only option is to replace the entire actuator assembly. The Demco Hydraulic Brake Actuator #DM72VR is the closest one we have to replace your Atwood 6K actuator. Since your current actuator…

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Answer 8

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 9

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 10

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 11

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 12

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

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Removing Atwood Actuator to Install Demco DM72VR

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