Why use hooks on safety chain when towing?

kshelly

Petty Officer 2nd Class
Joined
Mar 9, 2004
Messages
124
I need a quick education...why are safety chains on boats and other trailers simply hooks that attach to the loops on the hitch? My hooks are too small for my hitch so I simply removed the hooks, route the safety chain through the loops on the hitch, and install a bolt to secure the chains. I feel better knowing that the hooks can't fall off if the trailer pops off the ball, but I was wondering if I'm over-looking something obvious and compromising safety.
 

gsbodine

Petty Officer 1st Class
Joined
May 4, 2004
Messages
346
Re: Why use hooks on safety chain when towing?

AFAIK the hooks are mostly for convenience in attaching the safety chain because they allow you to cross the chain underneath the tongue (thus cradling the tongue if it does pop off the ball) more easily and quickly than threading it through the loops, etc. There's also less chance of having an improper length chain that kinks or something if you're having to thread or coil. That being said, I had setup similar to what you describe on an older, smaller boat I had. <br /><br />If it were me, I'd probably try to find the right size chains with hooks to make sure you're attaching it properly since they don't cost all that much anyway.
 

unixgeek13

Petty Officer 3rd Class
Joined
Jul 22, 2004
Messages
75
Re: Why use hooks on safety chain when towing?

I guess that's ok as long as the bolt is strong enough to hold the tongue weight (plus some) ... I personally have never heard of the hooks coming undone under tow. I think part of the point is quick release if you really had to get the trailer disconnected quickly... but aside from an empty keg, I can't imagine any reason that you'd need the ultra-fast getaway!<br /><br /><br />Also.. I'm guessing that you had enough slack in the chains to not restrict turning...<br /><br />...Steve...
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: Why use hooks on safety chain when towing?

Big "S" hooks will do the job if correctly installed on the hitch. . . from the inside out.<br /><br />The diameter of the hook should be quite a bit larger than the diameter of the chain links.<br /><br />In a recent thread a poster complained that his "S" hooks straightened out when the ball came out. The chain should stretch and even break before the hooks straighten out or the hooks are too small.
 

BoatBuoy

Rear Admiral
Joined
May 29, 2004
Messages
4,856
Re: Why use hooks on safety chain when towing?

JB,<br /> Not sure what you mean by "inside out". Would you mind explaining further? Thanks.
 

ThomWV

Senior Chief Petty Officer
Joined
Dec 19, 2003
Messages
701
Re: Why use hooks on safety chain when towing?

Well, I have to pipe in on this one.<br /><br />One morning a couple of years ago our trailer popped loose from our truck. Our boat is a 23' walkaround and it was fully loaded. We were on our way to the ramp for an offshore trip. The trailer/boat rig came in at over 8,000 pounds.<br /><br />When the hitch popped off the ball, which was entirely my fault by the way, we were leaving a traffic signal and making a right turn. I head a thunk, felt a jolt, looked in the mirror and saw the boat hull about to hit the tailgate of the truck. It missed by inches and the boat/trailer rolled to a rest right in the middle of the intersection (4-lane highway and the branch road I was entering it from). I backed the truck back up to it and we jacked it up and got it back on in record time and then pulled off in the first parking lot to survey the damage. Here is what I found. First, that the S-Hooks, which were quite heavy, were bent straight. Second that the 'emergency brake' lever had been fully activated and in fact was stuck in that position, but the brakes had not acculated at all (I would find out later that the seal had blown out of the master cylinder). The small S-hook that attached the acculating chain to the bumper was straightened out too, but at least it held on until it had done its job.<br /><br />So, now days I use shackels to hole my safety chains on. It takes a few minutes and they cost me a few bucks, but that's OK. I'll never have S-hooks again.<br /><br />Thom
 

POINTER94

Vice Admiral
Joined
Oct 12, 2003
Messages
5,031
Re: Why use hooks on safety chain when towing?

Good post Thom, and good advise. Nothing like personal experience to adjust ones way of doing things..
 

snowshoe

Seaman
Joined
Jul 6, 2004
Messages
52
Re: Why use hooks on safety chain when towing?

In some provinces in Canada the S hooks are no longer accepted and you must use safety chains with full chain slip hooks with a safety tab to prevent the chain from falling out in travel. These safety tabs are light metal and cannot take any force.
 
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