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Old 05-15-2022, 01:30 PM   #1
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Slide Out Big Bang

When I bring in my kitchen slide when it gets all the way in it’s like it doesn’t know when to stop. It continues to pull and the result is a loud bang as the chain skips a tooth. Is there a sensor to kill the power or what? Ready to cancel the holiday trip and detour to the mother ship.
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Old 05-15-2022, 01:42 PM   #2
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I was ready to reply with info on adjusting the load sensor on the slide drive controller ; until I re-read your post and saw " chain skips a tooth ".
I haven't seen any Newmar posts discussing chain driven slides so I'll wait for other members to respond and perhaps learn something today.

Have you seen the other posts about Newmar slide motor mounting bolts working loose ?
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Old 05-15-2022, 02:31 PM   #3
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Yes it on the controller. I believe there is a good thread on this in the sticky section.
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Old 05-16-2022, 08:01 AM   #4
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There is no chain involved that I know of. What's happening is the sprocket drive is jumping a notch in the cog drive plates on the bottom side of the slide.

Run the slide all the way out & look up under the bottom at the 2 cog drive plates- you will see a number of obround holes in these 2 plates- do any near the outside edge of the plate look like the rear edge has been buggered up a little? If yes you need to adjust the slide controller cut out amps so it doesn't continue to run after the slide is all the way in. Call Newmar & there's a procedure out there showing you how to do this. I think there's also a Sticky thread on this subject here on this form.

Happy Trails
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Old 05-16-2022, 10:55 AM   #5
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Bill- there are two chains on the shaft. 4 sprockets. 1 gearbox and one drive motor. Two of the sprockets are are at either end with the gearbox and motor in the middle. There is chain that that engages the cog that mates up the plate with holes in it that actually moves the slide. Now the idea that the problem could be a limit switch is sound since the BANG happens when the slide is all the way in but finger is still on button.
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Old 05-16-2022, 10:56 AM   #6
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In addition I can see the chain jump a tooth on the lower aft cog/sprocket
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Old 05-16-2022, 02:29 PM   #7
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If your slide is coming in to far the trim at the bottom of the slid is screwed on from the bottom side and it could be snapping those screws. It was happening on mine. I have the same set up with the chain drives. The controller is in the bin just in front of the peg board bin on mine. I believe you can adjust the amp load so it stops sooner.
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Old 05-16-2022, 07:51 PM   #8
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My apologies TwinCamSAN- I have owned 4 Newmar coaches & have seen over 400 and I have never seen a chain drive for the slides. I can't believe they would make 2 different drive systems in the make, model year?


Has anyone else out there seen these chain drive slides?

Happy Trails
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Old 05-17-2022, 06:01 AM   #9
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Capt Bill-no apologies necessary, believe me. I will ask you though since we have the same year, have you removed the two plastic covers in the top of the cooler bay and the third bay back passenger side. Or do you have those at all? I’m going to take a pic and will post.
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Old 05-17-2022, 06:26 AM   #10
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The 3rd bay from front, passenger side. 2nd bay has motor and gear box and the 1st bay has the other chain drive.
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