Demco Hydraulic Brake Actuator - Drum - Primed - 2" Bulldog Coupler - 7,000 lbs

Video Transcript for Review of Demco Brake Actuator - Surge Brake Actuator - DM8509202

Hi there, I'm Michael with etrailer.com. Today we're gonna take a quick look at this Demco hydraulic brake actuator. This is a model DA91 surge type hydraulic actuator that's going to activate your trailer's hydraulic drum brakes when your tow vehicle slows or stops. The momentum of the trailer is going to activate to ensure that your hydraulic lines are putting pressure to your drum brakes to make sure that they're applying. This will be a bolt on or a weld on installation. Will install onto a straight three-inch wide trailer tongue.

If you are bolting it on you will require a 1/2 inch by 4-1/2 inch grade five bolts, which are not included as you will have to provide those yourself. But this is constructed here in the USA or it's made here in the USA with a heavy duty steel construction. It's gonna provide a gross towing weight capacity of 7,000 pounds and a maximum tongue weight of 700 pounds. Our bulldog collar lock coupler here is going to fit tightly over a two inch hitch ball for a nice secure connection. We've got the heavy duty design that's going to create a nice fit for your utility, livestock, cargo and construction type trailers.

We have the pin style fastener here that's gonna hold the collar in place around the hinged ball socket there. So when we get connected we can just simply push that forward or when we want to disconnect, we can pull that back. Give you a different perspective on that. So you push in there, just secure it in place and then you can pass your pin through to make sure that it's not going to come disconnected. This does have a composite master cylinder that's gonna be very durable and efficient.

It's constructed of a glass reinforced nylon so it's gonna resist rust and corrosion. You also have a large reservoir that's gonna provide increased capacity for your brake fluid and then an automotive style diaphragm cap here that creates a completely enclosed system to help prevent any contamination of your fluid. We also have acetol copolymer linings that are going to provide a nice smooth operation as the actuator telescopes in and out. This does have a nice primed finish, as you can see. So it is gonna be ready to be painted the color of your choosing.

And of course we do have our breakaway here. This does have the snap hook on the safety cable. That's gonna ensure a nice secure connection to your breakaway. The lever here, if you were to become disconnected at the coupler, this is gonna stay connected and it's gonna pull that lever. Make sure that your trailer's brakes activate so you don't have to deal with a trailer that's propelling itself down the road, bringing it to a nice safe stop. Now because this actuator does not include a reverse lockout, it is recommended that you equip your trailer with free backing brakes so you can drive in reverse without the actuator triggering your trailer brakes because that would essentially cause the unit to telescope in which would apply your brakes. So free backing brakes are a great way to go. So that completes our look for today. Again, I'm Michael with etrailer.com. Thanks for watching.