Is Replacement Bypass Solenoid Valve for Demco Brake Actuators Normally Open or Closed

Question

Question:

Is this a normally open or normally closed valve

asked by: Doug

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Expert Reply:

The Replacement Bypass Solenoid Valve # DM05561 is normally open letting the fluid flow through it. It will be closed when it is activated.

expert reply by: Robin H

0

Answer 1

The replacement I recommend for an Atwood Surge Brake Actuator 85778 is the Demco Hydraulic Brake Actuator part #DM62VR. It has the same ball size, offers a bolt-on install, and has a greater capacity. The only difference is it has an electric…

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Answer 2

I can tell you how the Solenoid Kit part #T4748800 intalls, and it comes with an instruction manual, but I could not get a copy to show you. One of the two black wires (doesn't matter which one) will run to the reverse light circuit of your tow…

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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

Since you have a wheelbase/axle spacing of 38 inches the correct hanger kit for slipper springs would be the part #HAP-105-205-01. And then for a 7k trailer axle the u-bolt kit you'd want would be the part #APUBR-8. I attached the diagram to use…

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Answer 5

Below is the general process for bleeding an electric over hydraulic brake actuator like #K71-650. Fill reservoir with NEW brake fluid. Never re-use brake fluid that has been salvaged or removed from another system. Remove the key from the breakaway…

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Answer 6

Based on my research, the Trailer Hub and Drum Assembly - 8,000-lb E-Z Lube Axles #AKHD-865-8-EZ-K will be a replacement for the 90865 Rockwell hub and drum. Both of these hub and drum assemblies are 12-1/4" diameter, have an 8,000 lb capacity,…

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Answer 7

The correct replacement master cylinder kit we have for your Demco setup is the part #DM5918 which comes with the lock out replacement.

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Answer 8

I've never heard of an actual third brake light connector on a camper shell to plug in on a truck and we don't carry any parts to do that. The light generally needs to be hardwired into the truck's brake light circuit. The issue with this…

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Answer 9

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and non-ABS…

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Answer 10

If the trailer wheels scrubbed (dragged and scrapped the ground instead of rolling) when jack knifed then it could have thrown something out of alignment or damaged something. First, inspect the suspension. Look for any elongated holes where…

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Answer 11

While we may have an option for you, we do not have the exact specs on your Allis grease seal part number 5013 29772. However, with the 1.6" ID and 2.5" OD measurements you provides, that is very close to our #58846. This particular grease…

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Answer 12

If you are needing the hub and drum assembly then you will want to go with the Dexter Trailer Hub and Drum Assembly #8-201-5UC3-EZ but if you are just looking for an idler hub then you will want part #8-213-5UC1 instead. These come with the correct…

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Is Replacement Bypass Solenoid Valve for Demco Brake Actuators Normally Open or Closed

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