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Old 12-26-2013, 09:21 AM   #1
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1998 Bounder Parking Brake Doesn't Engage

Hello everyone. I'm new to motorhomes and to IRV2. My wife inherited the Bounder (only 22,000 miles on the odometer) and we just brought it to Colorado from West Virginia this week. It has some problems, but the most significant is the parking brake.

The brake is the hydraulic type that engages a drum on the driveshaft. I know that before he died, my father-in-law replaced the green switch for the actuator, which was previously responsible for leaking transmission fluid.

Before I left West Virginia, I asked a mechanic to look at the system. He verified that the hydraulic system is working properly, but the shoes are not engaging within the driveshaft brake drum. He told me that it's fairly simple to remove the drive shaft and disassemble the drum to figure out what's happening. But before I attempt it, I wanted to post here to see if anyone has any hints or cautions before I tackle the job.

Also, while I have your attention. The mechanic used the hydraulic leveling system to raise all four wheels off the ground. He assured me that this is OK and doesn't hurt the leveling system. Do you folks agree with him?

Thanks in advance for your help and advice.

Dave
Colorado Springs
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Old 12-26-2013, 09:27 AM   #2
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It's probably OK to raise it off of the ground with the jacks, as long as you're standing uphill a hundred feet away. I would take it to a truck repair shop for the chassis you have, and have them repair it. Also, use wheel blocks until it's fixed. Eddie Elk.
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Old 12-26-2013, 09:51 AM   #3
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It's ok to use the stabilizing jack to raise the MH, but don't work under it relaying on the jacks, they are not designed for that. After I raise my MH I use jack stands under the frame to hold it up. Got mine at Harbor Freight rated at 12 ton per pair. There is a lot of knowledgeable members and information here about the auto park system. From what I have read they are not that difficult to work on as long as you have the knowledge of how the system operates. You can do a search on irv2 for auto park to find past posts. Also join the Workhorse Chevrolet owners forum. Be safe!!!
http://www.irv2.com/forums/f22/
Chuck
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Old 12-26-2013, 10:02 AM   #4
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Look up posts by member oldusedbear he is the resident auto park expert.

Chuck
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Old 12-26-2013, 10:16 AM   #5
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Quote:
Originally Posted by Dave1194 View Post
Hello everyone. I'm new to motorhomes and to IRV2. My wife inherited the Bounder (only 22,000 miles on the odometer) and we just brought it to Colorado from West Virginia this week. It has some problems, but the most significant is the parking brake.

The brake is the hydraulic type that engages a drum on the driveshaft. I know that before he died, my father-in-law replaced the green switch for the actuator, which was previously responsible for leaking transmission fluid.

Before I left West Virginia, I asked a mechanic to look at the system. He verified that the hydraulic system is working properly, but the shoes are not engaging within the driveshaft brake drum. He told me that it's fairly simple to remove the drive shaft and disassemble the drum to figure out what's happening. But before I attempt it, I wanted to post here to see if anyone has any hints or cautions before I tackle the job.

Also, while I have your attention. The mechanic used the hydraulic leveling system to raise all four wheels off the ground. He assured me that this is OK and doesn't hurt the leveling system. Do you folks agree with him?

Thanks in advance for your help and advice.

Dave
Colorado Springs
You can use the jacks to raise the tires off the ground, no problem, but you are risking your life by getting under it without jackstands or solid blocking to prevent it from falling due to jack failure.

ALL you need to know about your J71 AAPB system is available FREE from Roger via email to: oldusedbear11@charter.net

If the shoes are worn down beyond adjustment, you will need to replace the shoes, but first step is to contact Roger.......he is THE expert on these system.

Good luck. And welcome to irv2 !
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Old 12-26-2013, 10:24 AM   #6
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Also as mentioned by eddieelk if the auto park is not holding by sure and chock the wheels so it does not roll away. The transmission does not have a park pawl to keep the MH from rolling.

Chuck
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Old 12-31-2013, 02:49 PM   #7
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I have done more research on the parking brake system. It is designed to automatically engage if 12 volt control voltage to the hydraulic controller is lost. There are a few scary stories of the brake suddenly engaging while traveling at highway speed, bringing the motorhome to a sudden stop. There is a fuse that can blow and cause this problem. Can anyone help me find this fuse for my Bounder? I can't find it marked anywhere. Has anyone on this forum experienced the brake lockup? I would like to hear your story.

I have an appointment Thursday to get the parking brake repaired. But if there is anyone that can recommend a good shop in Colorado Springs, I'll consider canceling the appointment to take your advice.

Thanks again. This forum is great!
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Old 12-31-2013, 03:03 PM   #8
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Quote:
Originally Posted by Dave1194 View Post
I have done more research on the parking brake system.............Can anyone help me find this fuse for my Bounder? ....................

I have an appointment Thursday to get the parking brake repaired. But if there is anyone that can recommend a good shop in Colorado Springs, I'll consider canceling the appointment to take your advice.
Thanks again. This forum is great!
If you have not yet emailed oldusedbear11@charter.net with your questions, IMO, you are asking for a big repair bill from a "parts changer" who will likely keep throwing your money at the AAPB until it is "fixed". You really need to know what is wrong before having it fixed, even if you don't do the work yourself.
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Old 12-31-2013, 07:17 PM   #9
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Just sent him an email. Thanks for the warning.
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