ParkLiner owners - how are your saftey chains attached? - Page 2 - Fiberglass RV


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Old 10-30-2013, 10:29 AM   #15
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Originally Posted by David Tilston View Post
Why would they weld the jack on? Then bolt the chain to the jack? Seems weird.
Glad I wasnt the only one it sounded a bit weird to.
Perhaps a picture of it would help to understand it better.
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Old 10-30-2013, 10:49 AM   #16
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I use a pair of the chain connectors at the trailer end. Allows you to remove the chains when in storage. It adds one more layer to anti theft efforts. No chains and no wiring may help to get someone pulled over. Something like this but not stainless.
Apex Stainless Inc.-Stainless Quick Link(7350S)
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Old 10-30-2013, 11:13 AM   #17
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Originally Posted by Roy in TO View Post
I use a pair of the chain connectors at the trailer end. Allows you to remove the chains when in storage. It adds one more layer to anti theft efforts. No chains and no wiring may help to get someone pulled over. Something like this but not stainless.
Apex Stainless Inc.-Stainless Quick Link(7350S)
Well that brings up the issue of which one? Sized to fit through the existing chain and then the correct strength to hold the TT in case of (accidental) use.
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Old 10-30-2013, 11:32 AM   #18
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I went out and took a couple of photos on PL34. The safety chain is attached at the front of the tongue jack with a grade 7 bolt.
Click image for larger version

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The chains pass around the back of the jack and cross underneath the "A" frame. If I pull the chain straight forward and measure from the end of the coupler it is about 22 inches.
Click image for larger version

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Measuring from the bolt to the end of the chain gives me about 36 inches on each side.
Click image for larger version

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I have plenty of slack to reach the attachment loops on the hitch on my Tacoma without having so much that the chain drags on the pavement.
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Old 10-30-2013, 11:41 AM   #19
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Thanks Brian - as they say a picture is worth a thousand words.

Wonder why one couldnt just use the same bolt thats there but put the chains so they are attached to the under side of the tongue and just shorten them so they dont need to be looped around all over the tongue.
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Old 10-30-2013, 11:49 AM   #20
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Originally Posted by Carol H View Post
Thanks Brain - as they say a picture is worth a thousand words.

Wonder why one couldnt just use the same bolt thats there but put the chains so they are attached to the under side of the tongue and just shorten them so they dont need to be looped around all over the tongue.
The system shown in the photo is actually quite strong and does not rely on the connection between the bolt and the chain for anything other than to keep the chain from falling off the trailer when not in use. The chain is actually being supported by being looped around the jack and then going under the frame to the hitch. If you were to place the chain on the underside of the tongue and fasten to a bolt in a similar manner, and run the chains from the bolt directly to the hitch, then you would be relying on the strength of the chain-bolt connection to hold your trailer up in an emergency situation.
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Old 10-30-2013, 11:50 AM   #21
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Wrapped around the tongue jack and down under uses the tongue jack as a support. The bolt just keeps the chain in place. This let's you replace the chain if need be. Clever. Raz


Edit. Great minds think alike!
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Old 10-30-2013, 12:35 PM   #22
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Yes I figured that wrapping it was for additional strength but find it odd that other fiberglass trailers by other manufactures dont seem to do that. Most are like mine either attached under the tongue on one attachment point or attached to the tongue area or frame with two separate attachment points - some welded on some bolted with a single bolt others with u bolted attachements. Actually just went out and double checked my Scamp and sure enough the chains are attached to under the tongue area using one large through bolt but Scamp has welded across the underside of the tongue an extra metal plate thats separate from the top deck of the tongue area and its a little heavier than whats on the top side of the tongue and they have the bolt going through that plate only, not through the top of tongue area or the frame.

Perhaps PL used the wrap around system as you suggest to increase the strength because they didnt reinforce or install anything on the tongue strong enough to hold the bolt?
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Old 10-30-2013, 12:37 PM   #23
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Originally Posted by Carol H View Post
Thanks Brain - as they say a picture is worth a thousand words.
It's actually Brian, but I'll take all the credit I can get.
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Old 10-30-2013, 12:53 PM   #24
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For what it is worth there was a long discussion on drilling holes through trailer frames and the general consensus was that it was a bad idea as it can encourage cracks and eventual frame failure. My chains were simply welded on. I've used three different tow vehicles and have change the chain length using threaded links and more chain. Finally, Frank, a picture of your set up would make it not only clearer for those of us without Parkliners but also for future Parkliner owners reading this thread. Raz
For what it's worth Raz, having been a hobbyist welder for many decades, welding things changes metal characteristics as well. I've drilled lots of holes in trailer frames and never had a crack emanate from one (at least that I know ) or any kind of a failure. Welding something to a trailer frame can also cause problems down the road if not done right, i.e., amperage too high.

Right now a picture of the set-up on our ParkLiner is a no-go, as I have already cut the chain to mount it solidly, which it was not before.

Gee!

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Old 10-30-2013, 12:57 PM   #25
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Yes I figured that wrapping it was for additional strength but find it odd that other fiberglass trailers by other manufactures dont seem to do that. Most are like mine either attached under the tongue on one attachment point or attached to the tongue area or frame with two separate attachment points - some welded on some bolted with a single bolt others with u bolted attachements. Actually just went out and double checked my Scamp and sure enough the chains are attached to under the tongue area using one large through bolt but Scamp has welded across the underside of the tongue an extra metal plate thats separate from the top deck of the tongue area and its a little heavier than whats on the top side of the tongue and they have the bolt going through that plate only, not through the top of tongue area or the frame.

Perhaps PL used the wrap around system as you suggest to increase the strength because they didnt reinforce or install anything on the tongue strong enough to hold the bolt?
Well, by golly, apparently ParkLiner does this straight from the factory. For all the boat and utility trailers I have towed over the decades I have never before seen anything like this, which is why I asked about it. As Carol says, bolted, welded, yes, but wrapped loose around the tongue jack? Hmm.

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Old 10-30-2013, 01:01 PM   #26
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Originally Posted by Brian M. in NY View Post
I went out and took a couple of photos on PL34. The safety chain is attached at the front of the tongue jack with a grade 7 bolt.
Attachment 66181

The chains pass around the back of the jack and cross underneath the "A" frame. If I pull the chain straight forward and measure from the end of the coupler it is about 22 inches.
Attachment 66182

Measuring from the bolt to the end of the chain gives me about 36 inches on each side.
Attachment 66183

I have plenty of slack to reach the attachment loops on the hitch on my Tacoma without having so much that the chain drags on the pavement.
Thanks Brian. Gee, maybe I should just get a longer chain? Mine were a bit too tight for comfort when bringing this trailer home from NJ. Without the slack in the chain around the jack it wouldn't have been a problem. I thought it was just peculiar to #006. I guess not. The other thing is the bolt wasn't holding it down; the chain simply slipped right off the top of the bolt as I unwound it.

Hmm.

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Old 10-30-2013, 01:12 PM   #27
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Originally Posted by Brian M. in NY View Post
It's actually Brian, but I'll take all the credit I can get.
Good lord.... did I ever mention how I really struggle with my little phones screen and no glasses and auto type! At least I have never sent a text to my boss saying I cant come to work because I am at home in bed with a clown! instead of saying a cold!
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Old 10-30-2013, 01:15 PM   #28
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The other thing is the bolt wasn't holding it down; the chain simply slipped right off the top of the bolt as I unwound it.

Hmm.

Frank
Well now you know for sure why it was wrapped around everything - added strength
Are you really surprised ?
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