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Old 04-01-2017, 08:04 AM   #1
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1991 25' Airstream 250
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Kwikee steps (again)

I'm having another go at fixing the steps on my 1991 250 classic. They came with the Kwikee two step 860 model with the permanent magnet motor and orange control box (9513) with last out safety feature.

I've replaced the motor with the window motor. I've checked it in with our local specialist and he says the control box is kaput. That control box is no longer available and the Kwikee 909510003 replaced by the Lippert 379606 is not guarenteed to work on steps pre 1999 and also costs $$$.

Is there a simple way in which I can completely bypass the control box and logic and just have it work on an on-off switch just inside the door?

Anyone any thoughts on this one? I am hoping it is straightforward because i liked the steps!

thanks
Nick and Helen
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Old 04-01-2017, 06:41 PM   #2
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http://www.pplmotorhomes.com/parts/c...Fcm2wAodRnYKRg
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Old 04-01-2017, 06:47 PM   #3
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Kwikee steps (again)

http://tweetys.com/kwikee-products-3...FUW2wAodCHwDUw
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Old 04-02-2017, 12:14 PM   #4
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Hi Nick
It must be possible to use only a two way Switch...
In my 250 is no org Control box.!
The step work only with a Switch near the door.
It is ok for me.

best regards Peter
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Old 04-03-2017, 02:38 AM   #5
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Thanks. How does it know when to stop powering the motor. I thought the control box had a current sensing device which is essential to proper operation.

Thanks
Nick


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Old 04-03-2017, 04:02 AM   #6
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Thanks. How does it know when to stop powering the motor. I thought the control box had a current sensing device which is essential to proper operation.

Thanks
Nick


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When the fuse pops the motor will stop.
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Old 04-03-2017, 04:23 AM   #7
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Agh, that one. Maybe I will try and hunt down an old control box!


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Old 04-03-2017, 08:23 AM   #8
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It sure wouldn't be hard to develop a replacement control system using a couple of relays and prox switches.

You could add a couple of magnetic proximity switches to control when the motor stops. One switch is activated when the steps are retracted and another switch is activated when the steps are extended.

Brad
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Old 04-03-2017, 10:00 AM   #9
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Cheap Arduino processor card with a relay card added on it would be one way to go. Put it in a waterproof box somewhere...
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Old 04-04-2017, 03:41 AM   #10
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YOU can be the control box. Use a three position dpdt switch to select up, down, or off. Add a momentary push button switch to provide power. Select your desired step position and push the button. When the steps stop moving, release the button and put the three position switch to off. Just don't hold the button in too long...
The TV in the cabinet models use an even simpler setup. A momentary three position rocker. Push top of switch to raise the TV, bottom of switch to lower it. But when it stops, you must release the button because the stalled motor is still trying to work.
You will have to remember to raise the steps prior to driving away. The automatic stow feature will be gone.
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Old 04-04-2017, 07:26 AM   #11
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Thanks - maybe that is my best option for now


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