Parts Needed To Add Surge-Type Actuator And Brake Lines To Tandem trailer With Disc Brakes

Question

Question:

Please direct me to a fluid distribution block which attaches to the four brake lines to the disc brake calipers. How do I order the brake lines? It appears that there is only one outlet on the coupler correct?

asked by: Harry C

0

Expert Reply:

You are correct that there is only one fluid outlet on the coupler, part # T4750800 you referenced. This is the master cylinder on the coupler that sends fluid through the brake lines to the brakes. I have attached a photo of the coupler that shows the attach point for the brake line, and also a drawing that shows how the lines on a typical tandem axle trailer are run.
For a tandem axle with 4 disc brakes I recommend the Demco Hydraulic Brake Line Kit, part # DM5425. This kit includes the lines, hoses, and hardware needed to run the brake lines from the master cylinder to the brakes on your trailer. Since the kit comes with 4 flexible hoses you may wish to add an additional flex hose at the coupler, like part # T0776500.

I have attached a helpful article that shows what is needed to add hydraulic disc brakes.

expert reply by: Jeffrey L

0

click to enlarge

Doug R.

3/20/2020

I need a coupler for my water trailer with a 25/16 ball hitch.

Reply

Chris R.

3/22/2020

We have quite a few 2-5/16" ball couplers available. I added a few links that will take you to our full selection below, depending on the particular style you're needing. If you can tell me what specific model trailer you have - or the style and capacity you're looking for, I will be happy to make a more detailed recommendation.

Helpful Links

dept-pg-A~Frame_Trailer_Coupler-pc-2~5%7C16_Inch_Ball_Coupler.aspx

dept-pg-Brake_Actuator-sf-Surge_Brake_Actuator-pc-2~5%7C16_Inch_Ball_Coupler.aspx

dept-pg-Straight_Tongue_Trailer_Coupler-pt-2~5%7C16_Inch_Ball_Coupler.aspx

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Answer 1

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 2

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 3

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 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

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 6

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 7

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 8

Actually, the P3 now has the upgraded axis accelerometer like the P2. The Tekonsha P3 Trailer Brake Controller #90195, will work with both electric over hydraulic brakes on the trailer as well as electric brakes. It has a menu option on the display…

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Answer 9

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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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

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 12

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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Parts Needed To Add Surge-Type Actuator And Brake Lines To Tandem trailer With Disc Brakes

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