Hydraulic lift system Hydraulic, mechanical and electrical components of the lift system
Reply
 
Thread Tools Search this Thread Display Modes
 
Old 05-16-2018, 06:22 PM   #1
Member
 
Join Date: Mar 2018
Location: Sacramento CA
Posts: 19
Default Lift mechanism adjustment question - 2307C

Posted this in the general repairs forum, then realized it should probably be here.......

Just back from our second short trip (windy and cold at the coast) - second night in, we realized that most of the drafts we were getting inside were caused by the door side of the top not lifting far enough for the bulb seals on that side to meet the top rail on the body. Street side lifts about a half inch higher and seals fine, so it appears that only the door side of the top needs to be adjusted up.

Question is, with the top up, can I put a pair of hydraulic jacks on the front and rear side supports, carefully lift that side of the top to the proper position front and rear and adjust the slack out of the lifting cables, or are the side supports not strong enough to take that load?
__________________

oldcarguy is offline   Reply With Quote
Old 05-16-2018, 11:55 PM   #2
Senior Member
 
JackandJanet's Avatar
 
Join Date: Jul 2010
Location: Pine, AZ
Posts: 2,631
Default

I THINK you are asking if you could jack the top up with your hydraulic jacks sitting on the the front and rear "outriggers" (the steel supports the top rests on when it's down for travel)?

If so, since they support the top's weight when the top is down. I don't see why you couldn't do this. I will say though, you'll still find quite a bit of tension in those cables when that side is raised the extra half inch. They will probably NOT be "slack".

I've cut 4 2x4s to exact identical lengths and if I need to adjust my cables, I raise the top, place the 2x4s on the outriggers and tape them to the lower half with duct tape so they don't fall off, then lower the top till it fully rests on them (removing ALL tension in the cables). This makes the top level too, since the outriggers are at the same height on the lower frame. The 2x4s are about 4" shorter than the fully raised distance of the top.

If I had to raise the curb side 1/2", I'd then turn the appropriate adjustment screws out that 1/2", which would shorten those cables by that much.

- Jack
__________________

__________________
Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH
2014 F150 Platinum 4x4 3.5L EcoBoost SCrew
JackandJanet is offline   Reply With Quote
Old 05-17-2018, 04:43 PM   #3
Member
 
Join Date: Mar 2018
Location: Sacramento CA
Posts: 19
Default

Hadn't thought of it in those terms, but makes sense that there'd still be tension on the cables with that short an increase in lift.

I need to make a Lowes/Home Depot run anyhow, so I'll pick up a couple of studs, cut support pieces and proceed with your suggested adjustment procedure.

Thanks very much - appreciate the suggestion.
oldcarguy is offline   Reply With Quote
Old 05-18-2018, 04:39 PM   #4
Member
 
Join Date: Mar 2018
Location: Sacramento CA
Posts: 19
Default

Update:

Prior to starting cable adjustments, I took another look at the area and discovered that the guide block next to the door (on the rear side) was off its guide track - fixed that first, which (obviously) pulled the top in closer to the lower section's wall.

From there, proceeded to the cable adjustment - rather than go to the trouble of cutting 2x4's and bracing the top in the up position, I dropped the top all the way down and started taking up on the adjusting studs a bit at a time, running the top up every time I took up another 1/8 - 1/4 inch on the adjustment.

With the front cable adjustment taken up about 3/8" and and the rear about 1/2", the door side inner surface rails adjacent to the cable's mounting points are almost flush; at the forward side of the door, there's a vertical gap of about 1/2 inch and the bulb seal barely touches the upper sealing rail; on the rear side of the door the vertical gap is at least 3/4 inch and the bulb seal is at least 3/8" below the sealing rail.

With the adjustment in this position, a port-a-power hydraulic ram placed between the ground and a 4x4 block placed under the top's bottom edge will lift the top just aft of the door up to where the bulb seal contacts the rail (without making much change in the orientation of the rest of the top to the inner decorative rail) but I'm hesitant to attempt to force the top to lift any further with the cables - the remaining gap between the bulb seal and the sealing rail is small enough that a 2-3' strip of self-adhesive foam sealing material just below the sealing rail should stop the drafts.

My first thought was that perhaps the top has sagged a bit across the door opening (although the woman we bought the trailer from took good care of it - as evidenced by the excellent cosmetic and mechanical condition - she was on the road in it for at least 6 months a year over a 4 year period) but the gaps between the door and door frame are consistent, which they shouldn't be if the opening was spread open from sagging.

In the course of doing the adjustments, I also looked at the cables and their mounting points on the top's bottom rails - the lifting cable forward of the door has distorted the lower inner edge of the top's bottom rail significantly, to the degree that I'm wondering if fabricating a replacement reinforcement block from a longer, thicker piece of aluminum 90 degree bar stock might be advisable.
oldcarguy is offline   Reply With Quote
Old 05-19-2018, 08:59 AM   #5
Senior Member
 
JackandJanet's Avatar
 
Join Date: Jul 2010
Location: Pine, AZ
Posts: 2,631
Default

Quote:
Originally Posted by oldcarguy View Post
...<snip>...
In the course of doing the adjustments, I also looked at the cables and their mounting points on the top's bottom rails - the lifting cable forward of the door has distorted the lower inner edge of the top's bottom rail significantly, to the degree that I'm wondering if fabricating a replacement reinforcement block from a longer, thicker piece of aluminum 90 degree bar stock might be advisable.
I had the exact same problem in my trailer sir. I'm pretty sure it was caused by me trying to raise the top too much there causing the cable to "cut into" that section of the the top when it was stopped by the bulb seal at that point.

I did precisely what you are suggesting. After straightening the original little 90 degree metal piece that was there, and filling the wood "dent" underneath with epoxy, I cut an additional, longer and wider 90 degree plate that I installed under the OEM reinforcement. Painted everything white and you can hardly see the repair. It has held up well and has no distortion.

I posted a picture of this in another thread about 8-10 years ago, which you may be able to find if you search for it.

- Jack
JackandJanet is offline   Reply With Quote
Old 05-20-2018, 12:20 AM   #6
Member
 
Join Date: Mar 2018
Location: Sacramento CA
Posts: 19
Default

Thanks for that input - somewhere along the line this summer I'll go ahead and reinforce that area and readjust the cable on that corner accordingly.

Before taking the trailer back to storage today, I dropped the top part way and installed a strip of self-adhesive weatherstrip (MD Auto & Marine Rubber Weatherseal, 5/16 x 19/32" - about $7.50 @ Lowes) immediately below the sealing rail in the area aft of the side door - now when the top is up, the bulb seal contacts that strip of weatherstrip, so that should largely eliminate the drafts.

Also took some careful measurements across the upper door opening, and found that it does appear that the side as sagged a bit in that area, as the opening is about 1/4" wider at the bottom than it is at the top - that would account for at least some of the misalignment between the bulb seal and the sealing rail. If it's ever necessary to have any repair work done on the frame, I may have a 3rd outrigger support added just aft of the door to eliminate any flexing and sagging across the door opening in the top.
__________________

oldcarguy is offline   Reply With Quote
Reply

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

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 10:26 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
HiLoTrailerForum.com Copyright 2010