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Hi all,I bought an old chain come along about a month ago cheap from a local pawn shop. The chain was stiff from lack of lubrication and sitting around for so long. Luckily the rust on it was superficial and it cleaned up nicely and works well.The problem:I noticed after getting it back in working condition that it has a broken ear on the bottom of the case where at one time there was an eye providing a grab point for the hook side of the chain to grab onto thus converting it into a double chain come along, doubling its pulling power. The hoot actually has what would be a snatch block with a gear that serves as the lifting point instead of the hook and a single chain by itself. The pictures will make it clearer if I'm not making sense.Question:Is there a way to repair this reliably so I can use it as it was designed to. The case has the weight capacities cast into the casefor both single and double chain lifting so it is not a loss if it can't be repaired but I would like to keep it in a double chain configuration. Will brazing be strong enough to do the job? I also thought of removing the bottom pin that holds the case together and fabricate an eye that wraps around the case and then put a pin back in so it grabs from the pin as an anchor point and not a repaired eye at the bottom of the case as its original design was.Any thoughts on this?Thanks,Tony
Reply:It probably is not cast Iron but cast steel. I would weld it or braze it If I need it but I would not trust it. Mac
Reply:Fix that split chain link."USMCPOP" First-born son: KIA Iraq 1/26/05Syncrowave 250 w/ Coolmate 3Dialarc 250, Idealarc 250SP-175 +Firepower TIG 160S (gave the TA 161 STL to the son)Lincwelder AC180C (1952)Victor & Smith O/A torchesMiller spot welder
Reply:I would modify to work as a one-part hoist. It looks to be set up as at least a two-part tool.The pad eye is clearly not repairable, and the entire tool may be best retired. guaranteed that Coffing will want nothing to do with it
Reply:My opinion, it's your life, but that would be in the scrap pile if it was me. I love old tools but for what it is, and specifically you said lifting, I wouldn't chance it. Between that, the split link on the chain, the fact that it was rusted up to the point of being stiff, I would not trust it for lifting anything.
Reply:Hello again, This come along functions as either a single or a double chain. As it is now it works as a single chain puller. I'm not as inclined to write this one off because it has been sitting and froze up. Now that the chain is loose and well oiled, as is the internal mechanism, it ratchets real smooth and lifts or pulls great. Most the work I have used these types of pullers for is to line things up during a repair such as in pulling a rail back in place on a light trailer or closing a gap between two plates, etc. I have not had to lift yet and I already have a CM 3/4 ton come along. However I was not able to pass this one up.I will be adding an eye to this thing but instead of grabbing the broken one and repairing it, I will wrap around the case using the bottom pin to grab onto. Maybe an angle iron cross bar with a pair of left and right plates with holes drilled in them so that the pin will go through them as it enters and exits the case using a hardened bolt. On this assembly I can weld an eye pad to so there is a place for the chain to attach to making it a double chain puller / lifter.For now I will leave it as it is.thanks,Tonythanks for the feedback.
Reply:At one time I had something very similar to what you are showing. It was not a come-a-long but was used to put tension on cables during installation of transmitting towers.
Reply:This has obviously been overloaded as the chain has also failed and it is not reliable. Perhaps you should put a new high quality chain on it as the original could come apart at any link at any time. I don't believe that it was ever intended to lift anything but rather to pull or bind. For your own safety and that of others take extra care that when you use it that no one is in a position to be injured if it should fail. The powers that be would definitely call it scrap.---Meltedmetal
Reply:I wouldn't fix it, but if i did, I would remove that through bolt above the break, mill a slot and install a piece of steel with a hole on each end, reinstall the through bolt, and then install the chain link. I would never trust it for 6000# though! even fresh from the factory. Maybe for help you could turn to the guy I your area that post 300 times daily on Craigslist how much of a pro he is. You can't miss his ads, as he posts in all areas every day, and doesn't keep his post in the services offered area where it wouldn't annoy people looking to buy welding equipment. watch out though, he is not a licensed/bonded/insured contractor, or a legitimate business.
Reply:I can't tell from that one pict, but I think that "broken" link everyone is looking at is factory, and was designed that way as a hook, probably so you could quickly change to double pull. I'm guessing this because of the change in size on the link.I could see fabbing up a new attachment point and brazing it on. Biggest issue typically with brazing isn't the strength of the braze, but the joint design, But joints don't have anywhere near as much strength as lap joints do. I could see taking a heavy piece and milling out a slot to fit around the original ear so you ended up with a lap or socket joint vs but joints. Given enough surface area for the braze and a good joint design and fit up, I can see the braze holding. Having said that I'm not sure I'd trust it repaired for overhead lifting. I like all my original body parts too much to F around with being cheap. I've seen what broken cables and ropes can do when things under tension snap. I'm sure link chain lashing back would leave a good sized mark if something let go. If you are using it as a puller, say for muscling pieces straight to weld , possibly..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:i'm paraphrasing someone a lot smarter than me; if i fixed that i would feel i own the results which would cause me no end of worry down the line. this is right up there with repairing pressure vessels at home.i.u.o.e. # 15queens, ny and sunny fla
Reply:Originally Posted by DSWI can't tell from that one pict, but I think that "broken" link everyone is looking at is factory, and was designed that way as a hook, probably so you could quickly change to double pull. I'm guessing this because of the change in size on the link.
Reply:Ahhhh! Thanks. I had missed that! My bad..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:Originally Posted by tackit Says Coffing Load Binder. Is a binder different from a come along? I don't know but I would check into it.
Reply:http://www.cmworks.com/Public/7145/AD%20GT_Cat.pdfhttp://www.cmworks.com/Hoists/ManualHoists/LeverHoistsI think in the past, there were similar tools for overhead lifting. What Coffing/CM now make a binder in that configuration.What kind of hooks does it have? Slip with safety latch or grab?May still be under warranty. I would guess that they would fully replace itLast edited by Rock knocker; 12-30-2013 at 12:48 PM.
Reply:http://store.americancrane.com/viewi...r-load-bindersThis does indicate lifetime warranty.
Reply:Yea, i tried repairing a chain fall once. I knew it was overloaded and decided to take it apart for a visual inspection. Once I tooke a few bolts out it crumbled in my hands. The bolts were all that was holding the cracked mess together. F that. I don't buy, use, or repair lifting devices of unknown history.Syncrowave 350Coolmate 3Millermatic 251Spoolmatic 30A
Reply:isn't a load binder for holding tension on the chains/straps on a trailer?i.u.o.e. # 15queens, ny and sunny fla
Reply:Originally Posted by walkerhttp://store.americancrane.com/viewi...r-load-bindersThis does indicate lifetime warranty.
Reply:Hi everyone,Thanks for the links to the equipment supplier. I'll call and see if it is covered under their warranty. This model looks identical to the ones in the links. It has grab hooks. Just dawned on me that it is for grabbing chain. I've never seen a load binder like this and took it for a come along. Getting new chain is a good idea.thanks,Tony
Reply:Originally Posted by docwelder...this is right up there with repairing pressure vessels at home.
Reply:Originally Posted by therreraHello again, This come along functions as either a single or a double chain. As it is now it works as a single chain puller. I'm not as inclined to write this one off because it has been sitting and froze up. Now that the chain is loose and well oiled, as is the internal mechanism, it ratchets real smooth and lifts or pulls great. Most the work I have used these types of pullers for is to line things up during a repair such as in pulling a rail back in place on a light trailer or closing a gap between two plates, etc. I have not had to lift yet and I already have a CM 3/4 ton come along. However I was not able to pass this one up.I will be adding an eye to this thing but instead of grabbing the broken one and repairing it, I will wrap around the case using the bottom pin to grab onto. Maybe an angle iron cross bar with a pair of left and right plates with holes drilled in them so that the pin will go through them as it enters and exits the case using a hardened bolt. On this assembly I can weld an eye pad to so there is a place for the chain to attach to making it a double chain puller / lifter.For now I will leave it as it is.thanks,Tonythanks for the feedback.
Reply:See post #13
Reply:Originally Posted by Rock knockerSee post #13
Reply:Hi all,I haven't used the puller for anything beyond making sure that it ratchets and winds easily and smoothly. It does. I picked up a chain breaker tool yesterday and will locate a source for links and change it out. While I'm at it, I'll check each link for damage and replace as needed. The idea of making it into some type of usable ornament sounds real creative. I don't think I ever would have thought of that. While this puller may have a worn chain, it seems to me that as long as it functions it is still a usable tool. Its not like the metal had layers of rusty crust on them. It had "frozen" stuck from being exposed to the elements and no lubrication.I haven't yet called the manufacturer to see if it is covered under some warranty. My guess is that with that broken eye, it may not be as it would be an indication of use beyond its capacity or abuse. We'll see.....Thanks,TonyBinders are for binding, not lifting, hence the name. They are frequently overloaded in order to crush down loose loads.Last edited by farmall; 01-10-2014 at 10:46 AM. |
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发表于 2021-8-31 22:40:34