RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Newmar Owner's Forum
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 07-14-2018, 01:43 PM   #1
Senior Member
 
Stealth01's Avatar


 
Newmar Owners Club
Join Date: Jun 2013
Location: MidWest
Posts: 911
Newmar Electric Slide Outs, DAMN, Here We Go Again!

I'm the original poster of the "Own A Newmar With Electric Slide Outs... Read THIS!" post. If you followed the lengthy thread you know the history of the "loose" mount bolts, failed motor mounts, Newmar FINALLY releasing a TSB and ensuing discussion on methods to prevent future failures! For me, being from Aerospace, In October of 2016 I went with bolt replacement and safety wiring of the new bolts (See Pic01). Well... Here we go again!! This morning while leaving Terra Haute IN I noticed red lubricant dripping on the edge of my slide out tray (See Pic02). When I investigated I found my motor mounts BREAKING AGAIN!!! As you can see all of the bolts on the Living Room gear casing are safety wired and tight!! However, both of the outboard gear casing mounts are broken out of the gear case (See Pic03 & 04)!! And the two inboard mounts are cracked (See Pic 05 & 06)! The upper inboard mount appears to be the least cracked but I would guess we were just one or two slide out cycles from total failure!! To me, this failure indicates that "loose bolts" contributed to the previous failures BUT, it appears that even with safety wire, lock washers, Blue Loctite or any other fix there is an INHERENT DESIGN FLAW in the motor case design... Even with "torqued" mount bolts, the repeated torqueing of the motor/gear box assembly during slide operation can fail the mounts!!! Just for reference, I keep accurate records of coach operation. The living room slide has been cycled (out/in) 133 times since being safety wired. So, if you think you have a "Bullet Proof" solution, like I did... Think again!!


We're on the road making our way home with the Living Room slide closed! We'll be scheduling a motor replacement AND a small bedroom slide motor inspection (above the TAG wheel), the Kitchen slide motor is fine as is the "bed" bedroom slide which I just replaced!! Newmar, I can't tell you how disappointed I am!!
Attached Thumbnails
Click image for larger version

Name:	Pic01.jpg
Views:	121
Size:	300.8 KB
ID:	210937   Click image for larger version

Name:	Pic02.jpg
Views:	113
Size:	276.1 KB
ID:	210938  

Click image for larger version

Name:	Pic03.jpg
Views:	108
Size:	361.9 KB
ID:	210939   Click image for larger version

Name:	Pic04.jpg
Views:	114
Size:	430.7 KB
ID:	210940  

Click image for larger version

Name:	Pic05.jpg
Views:	99
Size:	340.6 KB
ID:	210941   Click image for larger version

Name:	Pic06.jpg
Views:	103
Size:	290.9 KB
ID:	210942  

__________________

__________________
Ken & Anita 2011 Newmar Essex,4522,Cummins 500 ISM,2013 CRV,RVI2 Brake with TPMS **Our Travel WebSite**
<a href=https://i1129.photobucket.com/albums/m512/kengallagher/copper_a_zps0e12153d.jpg target=_blank>https://i1129.photobucket.com/albums...ps0e12153d.jpg</a>
Stealth01 is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 07-14-2018, 02:22 PM   #2
Senior Member
 
Join Date: Mar 2009
Location: Apollo Beach, FL
Posts: 1,773
I've had 3 of the 4 slides fail, one twice. First one was on our second trip, the kitchen slide chain broke and wadded up in the gears. Second failure was a gear in the motor gearcase in the drivers side bedroom slide broke off a few teeth. Third failure is similar to what you posted. The gearcase broke open on the drivers side living room slide. Fourth failure was on the drivers side living room slide when the stop rod pulled right out of the thin metal bracket on the slide.
You are right-- poor design and even worse implementation.
We had our prior coach ( Fleetwood) for 13 years and used it a lot-- had one slide failure ( broken gear in gearcase).... I too am very disappointed in Newmar's implementation -- I sort of cringe everytime I open or close any of the slides. Not a pleasant situation.
__________________

__________________
2013 DS 4338
2015 F-150 toad with kayaks,bicycles and a Harley in the back
PanJH is offline   Reply With Quote
Old 07-14-2018, 02:34 PM   #3
Community Moderator
 
"007"'s Avatar


 
Nor'easters Club
Workhorse Chassis Owner
iRV2 No Limits Club
Join Date: Oct 2004
Posts: 28,427
Never had these problems back in the early 2000-10 years the gear casings must have been changed to a different MFG.
Not sure who were the older ones and I wonder if the casings are the same that RV Upgrades sells.
Has anyone ever replaced one of their motors or gear housings and have there been any problems after doing so.
The heavier slides can not take "the torque of motor" through the gear housing,
that's matched up with it
__________________
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans, now in good hands
VISIT the NEWMAR QUICK TIPS & EASYMODS 1 & 2
QUICK TIPS # 3
RV SYSTEMS & APPLIANCES & RECALLS --- TECH INFORMATION
"007" is offline   Reply With Quote
Old 07-14-2018, 03:51 PM   #4
Senior Member
 
Buly's Avatar


 
Newmar Owners Club
Join Date: Mar 2016
Location: Edgewater, FL
Posts: 537
PanJH, I think you are right. Over the years the slides got bigger, loaded with heavy equipment an more storage. Also aluminum casting for the motor housing is not the best material. I cringe every time have to move a slide and hear It creaking. I feel it is just matter of time.....
__________________
Buly, Doris, Daisy and Dixie
2015 DS 4369 towing 2014 CRV
It is never too late to have a happy childhood!
Buly is offline   Reply With Quote
Old 07-14-2018, 04:24 PM   #5
Senior Member
 
Winepress's Avatar


 
Join Date: Jul 2012
Posts: 936
Quote:
Originally Posted by Stealth01 View Post
I'm the original poster of the "Own A Newmar With Electric Slide Outs... Read THIS!" post. If you followed the lengthy thread you know the history of the "loose" mount bolts, failed motor mounts, Newmar FINALLY releasing a TSB and ensuing discussion on methods to prevent future failures! For me, being from Aerospace, In October of 2016 I went with bolt replacement and safety wiring of the new bolts (See Pic01). Well... Here we go again!! This morning while leaving Terra Haute IN I noticed red lubricant dripping on the edge of my slide out tray (See Pic02). When I investigated I found my motor mounts BREAKING AGAIN!!! As you can see all of the bolts on the Living Room gear casing are safety wired and tight!! However, both of the outboard gear casing mounts are broken out of the gear case (See Pic03 & 04)!! And the two inboard mounts are cracked (See Pic 05 & 06)! The upper inboard mount appears to be the least cracked but I would guess we were just one or two slide out cycles from total failure!! To me, this failure indicates that "loose bolts" contributed to the previous failures BUT, it appears that even with safety wire, lock washers, Blue Loctite or any other fix there is an INHERENT DESIGN FLAW in the motor case design... Even with "torqued" mount bolts, the repeated torqueing of the motor/gear box assembly during slide operation can fail the mounts!!! Just for reference, I keep accurate records of coach operation. The living room slide has been cycled (out/in) 133 times since being safety wired. So, if you think you have a "Bullet Proof" solution, like I did... Think again!!


We're on the road making our way home with the Living Room slide closed! We'll be scheduling a motor replacement AND a small bedroom slide motor inspection (above the TAG wheel), the Kitchen slide motor is fine as is the "bed" bedroom slide which I just replaced!! Newmar, I can't tell you how disappointed I am!!


Is it possible that the torque setting that turns the motor off is not set correctly? I will be checking mine on my 18 DS sooner than later. Thought this was fixed.
Thanks for your update and sorry for your problems.
__________________
2018 Dutch Star 4369
Everything was working fine, until it wasn't.
Winepress is offline   Reply With Quote
Old 07-14-2018, 04:32 PM   #6
Senior Member
 
Algoma's Avatar
 
Join Date: Nov 2007
Location: Charleston, WV
Posts: 2,862
Quote:
Originally Posted by Winepress View Post
Is it possible that the torque setting that turns the motor off is not set correctly? I will be checking mine on my 18 DS sooner than later. Thought this was fixed.
Thanks for your update and sorry for your problems.
There is no torque setting. The controller is supposed to detect the stall current when the slide stops moving and turn the motor off. One of my slides is no longer doing that so I watch the slide moving and immediately release the switch when the slides stops. On the list for Newmar to fix in September.
__________________
John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
Algoma is offline   Reply With Quote
Old 07-14-2018, 04:58 PM   #7
Senior Member
 
Join Date: Jan 2018
Posts: 472
Following this thread for sure. Hopefully my new 18 will not see these failures...
kpecks is offline   Reply With Quote
Old 07-14-2018, 06:11 PM   #8
Senior Member
 
bruceisla's Avatar
 
Join Date: Oct 2012
Location: Eastport, FL - on the road again
Posts: 5,859
Quote:
Originally Posted by Stealth01 View Post
I'm the original poster of the "Own A Newmar With Electric Slide Outs... Read THIS!" post. If you followed the lengthy thread you know the history of the "loose" mount bolts, failed motor mounts, Newmar FINALLY releasing a TSB and ensuing discussion on methods to prevent future failures! For me, being from Aerospace, In October of 2016 I went with bolt replacement and safety wiring of the new bolts (See Pic01). Well... Here we go again!! This morning while leaving Terra Haute IN I noticed red lubricant dripping on the edge of my slide out tray (See Pic02). When I investigated I found my motor mounts BREAKING AGAIN!!! As you can see all of the bolts on the Living Room gear casing are safety wired and tight!! However, both of the outboard gear casing mounts are broken out of the gear case (See Pic03 & 04)!! And the two inboard mounts are cracked (See Pic 05 & 06)! The upper inboard mount appears to be the least cracked but I would guess we were just one or two slide out cycles from total failure!! To me, this failure indicates that "loose bolts" contributed to the previous failures BUT, it appears that even with safety wire, lock washers, Blue Loctite or any other fix there is an INHERENT DESIGN FLAW in the motor case design... Even with "torqued" mount bolts, the repeated torqueing of the motor/gear box assembly during slide operation can fail the mounts!!! Just for reference, I keep accurate records of coach operation. The living room slide has been cycled (out/in) 133 times since being safety wired. So, if you think you have a "Bullet Proof" solution, like I did... Think again!!


We're on the road making our way home with the Living Room slide closed! We'll be scheduling a motor replacement AND a small bedroom slide motor inspection (above the TAG wheel), the Kitchen slide motor is fine as is the "bed" bedroom slide which I just replaced!! Newmar, I can't tell you how disappointed I am!!

Can you clarify what you are calling a "mount"? Do you mean the female threaded portion of the housing/gearbox?
__________________
2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
bruceisla is online now   Reply With Quote
Old 07-14-2018, 06:15 PM   #9
Senior Member
 
Join Date: Feb 2016
Posts: 642
Yikes. Troubling indeed. Maybe the smaller slides from earlier years take less of a toll on the motor mounts? Or as already suggested, maybe different manufacturers?
gtsum2 is offline   Reply With Quote
Old 07-14-2018, 06:33 PM   #10
Senior Member
 
bruceisla's Avatar
 
Join Date: Oct 2012
Location: Eastport, FL - on the road again
Posts: 5,859
This is really weird. The assumption was that the loose bolts would allow the motor/gearbox to rotate and eventually break the female boss off the case ... this is quite different since the bosses are still firmly bolted to the frame flange. You would think a correctly adjusted current limiter would stop the motor long before this would happen.
__________________
2005 Newmar Essex 4502, 2013 Caddy SRX
1997 HR Endeavor 37, CAT, 1996 Geo Tracker
bruceisla is online now   Reply With Quote
Old 07-14-2018, 06:52 PM   #11
Senior Member
 
Join Date: Sep 2010
Posts: 2,376
The current limiter might be the problem in this case. We have had Newmar coaches for 21 years, ( 2LA and 1 Essex), and after thousands of cycles we found that the bolts to the slide out motor coming loss was our biggest problem. After coming with using Lock-Tight on slide motor bolts we ended our slide out motor damage. We would always take our hand off the switch as soon as the slide was in. The new 18 LA with the HWH slide assembly to be along with Star improvement the answer as a better system.
Newmar Man
tom chelbana is offline   Reply With Quote
Old 07-14-2018, 07:31 PM   #12
Senior Member
 
Join Date: Jul 2010
Location: Southern Ohio
Posts: 656
Hate to say I told you so, but I did tell you safety wire guys that safety wire wonít fix a bad joint with inadequate fasteners. I posted that months ago.

If the parts arenít clamped together tightly enough, the joint will start to slip and eventually destroy one or both components whether they unscrew themselves or not.
__________________
John McKinley
2007 Damon Daybreak 3060, Ford 16,000# Chassis,
Ford C-Max Hybrid Toad , Suzuki V Strom 1000cc
jmckinley is offline   Reply With Quote
Old 07-14-2018, 07:33 PM   #13
Community Moderator
 
"007"'s Avatar


 
Nor'easters Club
Workhorse Chassis Owner
iRV2 No Limits Club
Join Date: Oct 2004
Posts: 28,427
A couple of other things, older slides you could push the button and slide would continue after you removed your finger, was not necessary to hold button, and when the slide reached its limit either way, in or out, the controller would shut off motor from operating..
Now a days you have to hold button down and I have no idea what the controller will do and you now have the C-Storm controller.
The motor torque is ripping your gear housing apart, never had motor & gear housing moving either, they were permanently mounted.
At this point I think Newmar is going to have a large recall when they figure what is going on.
Like I said the gear housing was different in time period I mentioned never had a split housing or loose bolts where you have had to wire bolts to keep in place.
You will have to work with Newmar because this problem is not going to be fixed with the combination of gear box they use now and motor.
The motor maybe fine with painted bolts but gear box is not.
__________________
98KSCA, 99MACA, 03 KSCA-3740- 8.1 Chev-- ALLISON Trans, now in good hands
VISIT the NEWMAR QUICK TIPS & EASYMODS 1 & 2
QUICK TIPS # 3
RV SYSTEMS & APPLIANCES & RECALLS --- TECH INFORMATION
"007" is offline   Reply With Quote
Old 07-14-2018, 09:25 PM   #14
Senior Member
 
Join Date: Sep 2010
Location: Independence,LA
Posts: 145
Quote:
Originally Posted by Buly View Post
PanJH, I think you are right. Over the years the slides got bigger, loaded with heavy equipment an more storage. Also aluminum casting for the motor housing is not the best material. I cringe every time have to move a slide and hear It creaking. I feel it is just matter of time.....
I have the same coach as you and the same fear as well. Just got it out of shop after a 3 week BR slide motor repair. Problem was diagnosed as busted bearings. Got ext. warranty approval to replace motor. Newmar sent motor 3-5 day shipping...took 9 days. Shop replaced motor. Moved slide in/out 5-6 times, all was well. Re-assembled the entire bed including airing up the select comfort. Tech opened the slide for final clean-up and slide went out 4" and stopped. After 1.5 hrs of troubleshooting with motor manuf. it was determined the motor was defective. Long story short, manuf. pd shop to disassemble bed, remove motor and waited 3-5 more days. Motor arrived and was installed. Motor worked great, brake on motor didn't. A new brake was sent to attach to motor and it was bad. Ended up putting brake from original motor(after getting authorization from manuf. as well as warranty co.) and now all is well(fingers/eyes/arms/toes crossed)HOPEFULLY END OF STORY!
__________________

__________________
Steve & Laurie '15 DSDP 4369
2015 White Jeep Wrangler Sahara, Roadmaster All-Terrain Falcon II Previous: 2012 Cedar Creek 36RE
sdagro is offline   Reply With Quote
Reply

Tags
electric, newmar, slide, slide out



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Own A Newmar With Electric Slide Outs... Read THIS! Stealth01 Newmar Owner's Forum 611 Today 07:16 AM
Things Are Too Damn Serious Around Here RubiconTrail Entegra Owner's Forum 11 01-20-2017 01:54 PM
BE DAMN CAREFULL could happen to you!! FLYING BUTCH iRV2.com General Discussion 11 10-31-2011 05:42 PM

» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 08:14 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2018, vBulletin Solutions, Inc.