Community Forums

DriVer · 08-10-2008, 04:49 PM

On our gas motorhome I upgraded my auxilliary brake system to the SMI Stay-and-Play DUO. This new technology braking system is mostly installed under the hood and is out of sight and out of mind.

If you ever wanted to have an auxilliary brake and then forget you have an auxilliary brake I would go with the DUO!

See my install thread in this forum. We just completed our first test run of almost 3000 miles and it's just about the only system that worked as it was supposed to.

gmanatl · 08-12-2008, 06:19 AM

We have U S Gear's Unified Tow Brake on our 1999 Winnebago Chieftain DP. We tow a 2000 Jeep Grand Cherokee 4X2 automatic with Remco drive shaft disconnect. After about 4,000 miles I am very pleased with the way it operates. We had a professional install the system since the coach wasn't pre-wired due to its age. It really makes a difference in stopping power and I like having the safety of the breakaway switch.

wallynm · 08-12-2008, 08:36 AM

Freightlinner states that when you tap into their air brake system you void the Freightliner warranty. Ask your installer if Freightlinner voids the warranty what the installer's company will do to protect you.

hondo122 · 08-12-2008, 02:43 PM

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by wallynm:
Freightlinner states that when you tap into their air brake system you void the Freightliner warranty. Ask your installer if Freightlinner voids the warranty what the installer's company will do to protect you. </div></BLOCKQUOTE>

Wally, it doesn't void their warranty. On page 57 of the owners manual there is a warning which states tapping into their air system could lead to serious bodily injury. Typical CYA statement. With the air hose disconnected on my brakes the compressor keeps up with the leak and stops the coach. I know because I tried it for my own curiosity.

Eddie Foy · 08-14-2008, 05:49 PM

I agree. If you tap into the system carefully, it is perfectly safe and gives superior results.

David K · 08-15-2008, 05:22 PM

If you have a "manifold" at the rear of your coach and it has service ports (plugs in them right now) that is the idea spot to "tap" in -- take out the plug and put in your tap. That is what I did for the hookup of my supplemental brake system. Roadmaster actually gives you the tap in plug to use. The test is real simple and like you Mike, I tried it with the hose still open just to see if the compressor would keep up pressure on the coach brakes. The 1/4 inch hose did not effect the coach brakes at all -- even when it was not connected and letting air out -- the pressure stayed up.

SSteve · 08-16-2008, 01:35 PM

I don't have a Roadmaster chassis. I have a Freightliner.

Steve

Don G · 08-16-2008, 03:15 PM

I installed the smi airforce one in my winnebago journey. I found part of the instructions a little confusing and called the support line and they walked me through it. It has been working fine so far. I never need to adjust anything. Just snap on the air line and it is ready to go.