|
|
11-17-2021, 05:10 PM
|
#1
|
Senior Member
Brand: Thor Motor Coach
Model: Aria 3901
State: Colorado
Posts: 141
THOR #13190
|
Schwintek Motor Retention Screw Stripped
Had Camping World replace a slide out motor a couple months ago. Noticed the retention screw was loose.
Checked closer and screw will not tighten - is stripped. I noticed for whatever reason the retention screw was changed - is now a pan head type versus factory Square. See pic.
I looked at images and appears the retention screw goes into a slot in the motor so assuming the motor should be ok? See pic.
Can you suggest a proper fix? Thank you.
__________________
|
|
|
11-17-2021, 05:20 PM
|
#2
|
Senior Member
Brand: Thor Motor Coach
Model: Aria 3901
State: Colorado
Posts: 141
THOR #13190
|
Since the screw was changed, am going to try one of the factory square screws from my other slide motors. Fingers crossed.
__________________
|
|
|
11-18-2021, 12:09 AM
|
#3
|
Senior Member
Brand: Thor Motor Coach
Model: Palazzo 36.1
State: Tennessee
Posts: 440
THOR #11607
|
Is your retention screw going through the rubber sweep? I don't think that is correct? Mine are under the rubber.
__________________
Greg, Gina & Ginger the rescue dog
2014 Palazzo 36.1, Cummins ISB 6.7 300hp, Allison 2500
TOAD 2008 Jeep Rubicon 4x4, Blue Ox Avail tow bar, RVibrake 3
|
|
|
11-18-2021, 07:02 PM
|
#4
|
Senior Member
Brand: Thor Motor Coach
Model: Aria 3901
State: Colorado
Posts: 141
THOR #13190
|
Yes. All 3 slides are the same.
__________________
|
|
|
11-18-2021, 09:43 PM
|
#5
|
Senior Member
Brand: Thor Motor Coach
Model: Palazzo 36.1
State: Tennessee
Posts: 440
THOR #11607
|
Interesting. On all of mine, the retention screws are under the rubber. You have to pull the rubber back to get to them.
__________________
Greg, Gina & Ginger the rescue dog
2014 Palazzo 36.1, Cummins ISB 6.7 300hp, Allison 2500
TOAD 2008 Jeep Rubicon 4x4, Blue Ox Avail tow bar, RVibrake 3
|
|
|
11-18-2021, 10:08 PM
|
#6
|
Senior Member
Brand: Thor Motor Coach
Model: Vegas 25.6
State: New Mexico
Posts: 5,131
THOR #20220
|
Same here under rubber..good luck
__________________
LAS CRUCES 2020 Thor Vegas 25.6
Lora & George. Golden Retriever & Multi-Gen Australian labradoodle & new ALD in March. Happy Campers!! E Biking, Hiking, Tennis, Scuba,Fishing,Cross Country Skiing, Snowshoeing. Retired H.S. Principal, Sr. IT Engineer, Life & Health Insurance Agent
"Today is a Gift and Why it is called the Present"
|
|
|
11-18-2021, 10:09 PM
|
#7
|
Senior Member
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,939
THOR #13932
|
I need to see the screw to give you a viable and quick fix.
Different strokes required for different screw/bolts.
Post a pic.
|
|
|
11-19-2021, 12:45 PM
|
#8
|
Senior Member
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,164
THOR #12751
|
This is one of the reasons why I replaced the Schwintek Slide Mechanism with the Vroom Slide System.... the lousy and weak setscrew design.
The setscrew can often back out far enough.... or even shear off.... such that the motor will start lifting out of the bearing block when retracting. One of the design changes with the Vroom Mechanism is that the motor is bolted down with 4 bolts vs 1 flimsy screw.
In most cases the setscrew can and does go through the outer wipe-seal plastic base. From there is threads through a thin piece of aluminum that is part of the H-column. About an 18" of screw goes through the slot in the top of the motor to secure it in place, which is a joke for large and heavy slides and the amount of torque generated when extending and retracting.
The problem with this design is that the aluminum is so thin that only a couple threads actually can bite into the aluminum and it is easy to over-tighten and strip the aluminum threads.
My factory setscrews were Phillips pan head screws... the lack of attention to detail during assembly would not surprise me if they aren't using a standard screw across all coaches.
You could use a sheet metal screw. Your biggest concern is the length. If the screw is too long, it can hit the motor shaft at the top of the motor. Once you have the right screw length just make sure it bites securely but don't over-tighten it. As I said there is not much aluminum and it can easily be stripped.
__________________
|
|
|
11-19-2021, 01:18 PM
|
#9
|
Senior Member
Brand: Thor Motor Coach
Model: Axis 24.1
State: Connecticut
Posts: 1,803
THOR #20289
|
I would drill and tap the stripped hole for a larger machine screw, not a sheet metal screw. I have no idea how to do this as you would have to remove the motor.
David
__________________
|
|
|
11-19-2021, 01:24 PM
|
#10
|
Senior Member
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,164
THOR #12751
|
Quote:
Originally Posted by DavidEM
I would drill and tap the stripped hole for a larger machine screw, not a sheet metal screw. I have no idea how to do this as you would have to remove the motor.
David
|
Drilling it out and tapping it is an option but you are going to get metal fillings all over the place. Besides removing the motor you have to worry about the bearing block.
A sheet metal or self-taping screw is the best option given how thin the aluminum is.
__________________
|
|
|
11-19-2021, 06:30 PM
|
#11
|
Senior Member
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,939
THOR #13932
|
If the op comes back, I'll have a
No tap
Fix for it.
|
|
|
11-21-2021, 12:25 AM
|
#12
|
Senior Member
Brand: Thor Motor Coach
Model: Aria 3901
State: Colorado
Posts: 141
THOR #13190
|
Quote:
Originally Posted by ducksface
I need to see the screw to give you a viable and quick fix.
Different strokes required for different screw/bolts.
Post a pic.
|
Here is a pic of the 2 set screws on my large slide. The one on the left is original factory, and the one on the right is what Camping World used when replacing the rear slide motor.
Just for grins l, I did try using the factory screw in the rear, and confirmed the hole is indeed stripped.
__________________
|
|
|
11-24-2021, 02:57 AM
|
#13
|
Senior Member
Brand: Thor Motor Coach
Model: Aria 3901
State: Colorado
Posts: 141
THOR #13190
|
Quote:
Originally Posted by ducksface
If the op comes back, I'll have a
No tap
Fix for it.
|
Hi. Not sure if you saw my latest post to include a pic of the screw. Look forward to hearing your suggestion.
Thank you.
__________________
|
|
|
11-24-2021, 03:30 AM
|
#14
|
Senior Member
Brand: Thor Motor Coach
Model: Aria 3901
State: Colorado
Posts: 141
THOR #13190
|
Quote:
Originally Posted by Judge
This is one of the reasons why I replaced the Schwintek Slide Mechanism with the Vroom Slide System.... the lousy and weak setscrew design.
The setscrew can often back out far enough.... or even shear off.... such that the motor will start lifting out of the bearing block when retracting. One of the design changes with the Vroom Mechanism is that the motor is bolted down with 4 bolts vs 1 flimsy screw.
In most cases the setscrew can and does go through the outer wipe-seal plastic base. From there is threads through a thin piece of aluminum that is part of the H-column. About an 18" of screw goes through the slot in the top of the motor to secure it in place, which is a joke for large and heavy slides and the amount of torque generated when extending and retracting.
The problem with this design is that the aluminum is so thin that only a couple threads actually can bite into the aluminum and it is easy to over-tighten and strip the aluminum threads.
My factory setscrews were Phillips pan head screws... the lack of attention to detail during assembly would not surprise me if they aren't using a standard screw across all coaches.
You could use a sheet metal screw. Your biggest concern is the length. If the screw is too long, it can hit the motor shaft at the top of the motor. Once you have the right screw length just make sure it bites securely but don't over-tighten it. As I said there is not much aluminum and it can easily be stripped.
|
Thank you. Agreed 1/8" doesnt sound like much. Do you suggest a longer screw, and if so, how much longer?
__________________
|
|
|
11-24-2021, 04:12 AM
|
#15
|
Senior Member
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,939
THOR #13932
|
Quote:
Originally Posted by LDK
Hi. Not sure if you saw my latest post to include a pic of the screw. Look forward to hearing your suggestion.
Thank you.
|
Just now saw it.
I'll do pics for you tomorrow.
|
|
|
11-24-2021, 07:54 AM
|
#16
|
Senior Member
Brand: Thor Motor Coach
Model: 2020 Magnitude SV34
State: Florida
Posts: 4,164
THOR #12751
|
Quote:
Originally Posted by LDK
Thank you. Agreed 1/8" doesnt sound like much. Do you suggest a longer screw, and if so, how much longer?
|
I once used a screw about 1/4" longer than the factory screw without it hitting the upper motor shaft. I would not go any longer than that unless you can get a borescope to see that the screw has not gone too far inside the motor.
I still personally think you could use a slightly larger self tapping screw and be ok.
__________________
|
|
|
11-24-2021, 08:13 PM
|
#17
|
Member
Brand: Thor Motor Coach
State: Massachusetts
Posts: 66
THOR #23697
|
Nothing that happens at Camping World surprises me.
__________________
|
|
|
11-24-2021, 08:37 PM
|
#18
|
Senior Member
Brand: Thor Motor Coach
Model: 2018 24.1 AXISSIXxSIX
State: Arizona
Posts: 6,939
THOR #13932
|
No pics
But
Strip some 18 gauge+- multistrand wire.
Wrap the bolt threads, only in the valley of the threads, with ONE strand of the copper wire.
Dip the entire wrapped bolt in a thin layer in candle wax.
Slather a fair coat of jb weld onto the waxed bolt.
Drive it home
Leave it alone.
The wire will resize the bolt just enough and the copper will conform as needed.
The jb will make the internal stripped threads match the new oversize threads, permanently.
The wax will allow for later removal of the bolt if needed.
The waxed head will not bond to the case.
No shavings, no drilling, no depth problem .
IF you can get the stripped part on a work bench, helicoil it.
A couple of these wire fixes are pushing 40 years old here.
It works fine on small engine heads and does not pull loose.
|
|
|
11-24-2021, 08:59 PM
|
#19
|
Member
Brand: Thor Motor Coach
State: Massachusetts
Posts: 66
THOR #23697
|
I always find it quite amazing how clever individuals like duckface with great solutions to RV problems. I have gotten a lot out of this site over the years.
__________________
|
|
|
11-25-2021, 04:23 AM
|
#20
|
Junior Member
Brand: Thor Motor Coach
State: Utah
Posts: 14
THOR #12087
|
Quote:
Originally Posted by LDK
Had Camping World replace a slide out motor a couple months ago. Noticed the retention screw was loose.
Checked closer and screw will not tighten - is stripped. I noticed for whatever reason the retention screw was changed - is now a pan head type versus factory Square. See pic.
I looked at images and appears the retention screw goes into a slot in the motor so assuming the motor should be ok? See pic.
Can you suggest a proper fix? Thank you. Attachment 34850Attachment 34851
|
My solution to this frustrating problem. I attached an L bracket, with one leg to frame, other leg on top of motor. Took picture with my phone. Will attach photo, if I can figure out how.
__________________
|
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
|