RV Trip Planning Discussions

Go Back   iRV2 Forums > THE OWNER'S CORNER FORUMS > Monaco 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 08-02-2013, 10:16 AM   #15
Senior Member
 
Johnontheroad's Avatar


 
Monaco Owners Club
Join Date: Jan 2007
Location: Somewhere in TX/NM/AZ until spring '19
Posts: 732
Quote:
Originally Posted by YC1 View Post
....... I had installed the safe-t-plus and built an electric trim for it......
I'd like to know how you built an electric trim for the safe-t-plus. I had thought about doing that and have an idea how to do it safely, but would be very interested in how other have done it.

John
__________________

__________________
2015 Entegra Aspire 44B https://my15aspire.wordpress.com/
2017 GMC Acadia Denali, M&G braking, Blue Ox
Full-timing since 2008
Johnontheroad 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 08-02-2013, 06:03 PM   #16
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 7,024
Safe T Plus steering stabilizer. June 2011 Blue one. Serial number is 01115405 Model 41-230
800-872-7233
United Safety Apparatus inc
2544 Lantrac Court
Decatur, GA 30035
Bought From PPL Motor homes 10777 S W Freeway Houston Tx 713-988-5555
 
-------------------------------------------------------------------
Linear actuator for the trim kit is 6104T 4” full travel, .5 inches per second. Paid $114
110 lb load 8.5 inches to 12.5 inches
 
Accele
562-809-5090
P.O. Box 92139
Long Beach Ca. 90809
------------------------------------------------------
 
The actuator has a total travel of 4 inches. That is two inches each way of center. It is about 12 inches long. I marked the center, and each end of travel with a circle as seen in the photos. The Linear Actuator has an automatic stop at each end of the travel so you won't overwork it. The actuator has 110 lbs of force. I could have bought much higher but I knew it would take at least twice that to come close in moving the stiff shock. My 180 lbs would not move the shock in at all. Knowing already that 1/8 of an inch travel on the shock would be enough to change the center I knew I didn't need much but it would have to be very powerful. I had experimented with the shock by itself and found trying to get it to the perfect center was difficult and tapping the mounting u bolts a tiny bit was enough to change it a bit.

With this in mind I decided to try a 4/1 ratio using a lever. The final ratio is probably closer to 6/1. The goal was to have the actuator travel its full length each way so the internal stops would work and I didn't want to work the actuator hard. At 4/1 it was working kind of hard and it could not travel the full distance. I know this setup is crude but as my airplane building group proved together everyone achieves magic (TEAM). There will be many better ideas and improvements once people get the bug to build one themselves.

What is happening is the bolt for the shock is through the lever arm. The hole was cut to the exact size of the bolt. Washers are seen throughout the build to provide certain clearances. One being the end of the shock was hitting the mount when the arm was pulling it in and that reduced my range. The stack of washers which are greased are tight enough to remove slop and tight enough to hold things solid. What you cannot see in the picture is the (slot) I cut for the shock bolt to slide in. This slot has a slight arc to allow the large bolt to travel about 3/8 inch on each side of center. There is plenty of meat left in the original bracket in case the trim breaks. The large bolt cannot escape so the integrity of the system is really still there.

The small 1/4 inch bolt is the pivot point. I know it might seem strange to have the pivot point on the other side of the fulcrum but there was not enough room to do it otherwise.

The rear mounting bracket for the trim is a thin piece of metal about 1/8 inch thick. I used two u bolts to attach it. Its purpose is to hold square the rear of the actuator of course and the force is only 110 lbs max. This bracket could be fancied up a lot but with basic hand tools in my garage I didn't want to build something for the market place. Just something rugged and reliable.

Running the trim wire was easy enough but had to wiggle and strain of course. Keep in mind the rv has to have room for the wires to turn right and left and for the rv to raise and lower so you have to do some testing to make sure nothing gets pinched or ripped loose.

I have a box to mount the switch in already that is used for the modified SMI braking system. That is another story. I dumped the radio system control from that and have absolute positive and immediate control now and use about 1/2 the parts. Back to the story. The system draws 3.5 amps so wires can be small. Using a DPDT double pole, double throw switch I built a reversing switch. I was not able to get a switch that returns to center automatically locally so I settled for a toggle that has to be put back in the center position. That is fine for now and testing. I will order a better switch down the road.

The actuator takes four seconds to travel the full length, so only two seconds to travel 1/2 of that which is each side of center.

To make the thing move only takes about a 1 second tap to either side and trim is achieved. Nothing dramatic but nice smooth changes. I can make it pull left or right now and easily center it.


Oh yeah. About $150 total. I used a black pipe to bench test the thing if you need to know
 
CAUTION: Make absolutely sure you have clearance on top of the shock when you let the air out of the coach. My front air tank made contact with the shock so I had to simply mount the shock under the bracket instead of on top.
__________________

__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 08-02-2013, 06:07 PM   #17
YC1
Senior Member
 
YC1's Avatar


 
Holiday Rambler Owners Club
Join Date: Jun 2011
Posts: 7,024
Click image for larger version

Name:	IMG_2619.jpg
Views:	54
Size:	184.7 KB
ID:	43444

Click image for larger version

Name:	IMG_2620.jpg
Views:	55
Size:	141.4 KB
ID:	43445

Click image for larger version

Name:	IMG_2621.jpg
Views:	55
Size:	133.7 KB
ID:	43446

Click image for larger version

Name:	IMG_2622.jpg
Views:	54
Size:	112.1 KB
ID:	43447Pictures
Attached Thumbnails
Click image for larger version

Name:	IMG_2626.jpg
Views:	53
Size:	136.5 KB
ID:	43448   Click image for larger version

Name:	IMG_2627.jpg
Views:	50
Size:	160.0 KB
ID:	43449  

Click image for larger version

Name:	IMG_2628.jpg
Views:	47
Size:	190.9 KB
ID:	43450   Click image for larger version

Name:	IMG_2629.jpg
Views:	48
Size:	159.4 KB
ID:	43451  

Click image for larger version

Name:	IMG_2631.jpg
Views:	46
Size:	243.4 KB
ID:	43452  
__________________
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
YC1 is offline   Reply With Quote
Old 08-02-2013, 07:00 PM   #18
Senior Member
 
Johnontheroad's Avatar


 
Monaco Owners Club
Join Date: Jan 2007
Location: Somewhere in TX/NM/AZ until spring '19
Posts: 732
Thanks for the ideas!

Thanks for the detailed reply. That is a clever and simple way to achieve trim ability. I had thought along similar lines, but you provided further incentive and ideas.

As a full timer, I have limited access to good tools but as it happens I am volunteering at a site where I have use of the maintenance facility, which includes tools etc. Guess I better get it done now, while I am still here.

Thanks again for the great ideas. I'll post some pictures once I have completed my install.

== John
__________________

__________________
2015 Entegra Aspire 44B https://my15aspire.wordpress.com/
2017 GMC Acadia Denali, M&G braking, Blue Ox
Full-timing since 2008
Johnontheroad is offline   Reply With Quote
Reply

Tags
shocks



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


» Featured Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:01 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.