Electric Over Hydraulic Trailer Brake Actuator for Disc Brakes with a Maximum 1,000 PSI

Question

Question:

Hi, I have a triple axle trailer: - 7800lb boat fully loaded - 6 Tiedown 10inch disc brakes 1000PSI max I want to install electric over hydraulic brakes however, the only actuators I can find are 1600 PSI capacity, or 1000 PSI but for drum brakes only. Any recommendations what to do?

asked by: Dave

0

Expert Reply:

The only difference between a disc brake actuator and a drum brake actuator is the psi. Generally disc brakes require about 1,500 to 1,600 psi. Since your disc brakes have a maximum psi of 1,000 psi your solution is to use a drum brake actuator. I recommend the HydraStar, part # HBA-10.

Since the actuators are identical otherwise this will work just fine for you.

expert reply by: Charles S

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Answer 1

The difference between all of these different actuators in the amount of pressure that it sends to the brakes, since different braking setups require different pressures to engage them. Since disc brakes require 1600-psi of pressure to activate the…

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Answer 2

The big difference is that the #HS381-8066 is for marine applications so that means it has stainless steel hardware and a marine grade gasket which allows it to stand up a lot better to corrosion than the #HBA-12.

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Answer 3

Yes, you do have it right; the 1,200 psi electric over hydraulic actuator is what you'll need for your drum brakes, the Hydrastar Electric Over Hydraulic Actuator for Drum Brakes - 1,200 psi #HBA-12.

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Answer 4

HydraStar Electric Over Hydraulic Drum Brake Actuator #HBA-10 delivers enough pressure for one or two 7K-rated axles but for a trailer with a pair of 10K axles you will instead need the #HBA-12 EOH actuator which can provide the 1200-psi pressure…

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Answer 5

With our experiences installing and using the various electric over hydraulic actuators out there the consensus is that the Hydrastar actuators have the quickest response time and are the most reliable. All of our installers when asked will say that…

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Answer 6

If your current brake assemblies are self-adjusting, once the hub/drum is removed you will be able to see the adjuster cable extending across the brake assembly as shown in the photo I have edited for you. If you find you do not have them, you can…

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Answer 7

I do have an option for you but we wouldn't be able to provide a new inner slide member for the UFP A-60 Brake Actuator to convert this from drum to disc, it would need to be replaced in its entirely as it's simply too old. I recommend the…

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Answer 8

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 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

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 11

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 12

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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Electric Over Hydraulic Trailer Brake Actuator for Disc Brakes with a Maximum 1,000 PSI

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