Emergency Brake Problem

[wildcat72]

I have a 2001 winnabego Itasca Sunrise, my problem is when I set the emergency brake and when in park, on a downhill slope it moves forward, what could be the problem?

[enblethen]

He had sent me a PM.

[Gjac]

enblethen wrote:
OP has a 2001 Workhorse

I could not determine that from his post or profile. If that is the case there is an adjustment at the end of the transmission at the top of the drum which houses two brake shoes. There is a star nut inside and with a large screw driver or brake adjusting tool the brakes shoes can be adjusted. It is adjusted like drum brakes on the car.

[enblethen]

OP has a 2001 Workhorse

[egh33]

I had that problem on my old 95 Itasca, All it had was a band around the drive shaft. When you set the emergency brake it locked the drive shaft. my problem was the band needed adjusted so it would tighten the band.

[Happy_Prospecto]

wildcat72 wrote:
I have a 2001 winnabego Itasca Sunrise, my problem is when I set the emergency brake and when in park, on a downhill slope it moves forward, what could be the problem?

Just a guess here, but your emergency brake may need to be adjusted- ya think?

[wolfe10]

As you can see, without chassis information, all we can do is speculate.

Please post what year model, brand and model chassis you have.

[Gjac]

If it is a Chevy chassis it probably has the auto park system. Most large Class A MH's don't have a parking pall in the transmission or emergency brakes like a car or truck. If you post your chassis you will get help as to how to adjust the system.

[Jim]

I'm not sure any RV has an 'Emergency' brake these days. They're all called Parking Brake or similar. Just so they are protected against a law suit. And that acknowledges that the Parking Brake isn't as effective as the old emergency brake.

[TucsonJim]

Emergency brakes are activated my depressing the pedal or pulling the lever which then causes the cable to pull on the brake mechanism. As the brakes wear and the cable stretches, it gets out of adjustement.

When I used to work on these rigs, we'd crawl under the rig and adjust the cable tensioner in order to achieve good emergency brake operation. There are a couple of tests you can perform after it's adjusted. 1. Start the engine while parked on a flat surface. Put the rig in drive while at idle and take your foot off the main brake pedal. If the emergency brake is fully engaged, it should hold the rig from rolling forward. 2. Drive the rig at 10 miles per hour and apply the emergency brake. It should stop the rig in a reasonable distance.

In 1976, I was driving on an expressway when the traffic came to a stop. I applied my main brakes and the master cylinder failed which caused a total loss of braking. I immediately deployed the emergency brake and was able to stop just before I hit the car in front of me. A well adjusted emergency brake can be a life saver.

Jim

[Jim]

Make sure you check the owner's manual because all these big rigs have a stipulation on the grade allowable that the parking brake can hold you on without slipping. That's why most of us buy chocks to block the wheels with.

[1492]

Moved from Forum Technical Support

[enblethen]

What chassis is the rig on?
Could be just a parking brake adjustment.