How do you use a DID Chain Breaker/Rivetter?

Question

I have a DID KM500 chain breaker/rivetter, which thanks to the muppets at M&P, came with no instructions. Has anyone used one of these, or better still, does anyone have a scanned copy of the instructions that they could send me? M&P say it will be at least a week before they can send instructions, and I wanted to get the chain sorted tonight.

Answer 1

Don't know about this one - if it is similar to mine it is a clamp over type with a screw adjuster - add a comment if it sounds similar - they are quite easy to use



Right - it's slighly different to mine - undo the nut on the top and seperate the unit - slide it over the chain and locate the unit back together - tighten the top nut - when done locate a chain rivet and hand tighten until the push pin hits the rivet - the tighten with a spanner or socket until the rivet is pushed out on the far side - you may need some pliers to help just break the chain link away - that should be it -



SORRY Should read - remove the link from the chain and fit over the chain - NOT UNDO NUT ON TOP - was typing to quick - brain didn't catch up

Answer 2

Er, what it says above: assemble the tool over the chain, so the chain is running through the tunnel on the right of picture. Tighten it up so it clamps the chain firmly, but not insane-tight. Use it just near the rear sprocket, as the sprocket will control the chain a bit and keep it still.



Now tighten the bolt head on the left side of picture- it will push the pin and drive out the pin in the chain. Get this started carefully: it has to be pushing the chain pin square-on or the push pin will snap: in fact, it's not a bad idea to have a spare on hand. Once the chain pin is all the way out- and I mean all the way- disassemble the tool and pull the chain apart with stilsons, large pliers or similar.



To rivet the chain, use it the same way but the tool should be adjustable to prevent the chain pin being pushed out: it should be squeezed. You don't have to go too hard, or you'll break the pin in the tool. A few blows with a large hammer (put a similar heavy steel object behind the pin) will finish it off.



Rubber gloves help keep disgusting chain grease at bay. Assembling the chain tool in place is a bit fiddly but remember the whole objective is to get the pin in the tool pushing SQUARE into the chain pin.

Answer 3

Pretty simple tool to use. To break the chain, put the tool over the chain and make sure you adjust the back part so that the back is open and allows the pin to go all the way through the chain. Make sure it is lined up correctly and tighten the tool to push the pin all the way through the chain.

Then thread the new chain through and adjust the rear tire so that it is as far foward as it will go. If the new chain needs to be cut then pul the chain tight by hand and break the chain where you need to. Measure twice and cut once. It will suck if you cut the chain too short.

Once the new chain is the right length. Lub the 0-rings(if its an o ring chain) and master link and slide it though the back of the chain. make sure you put o-rings on both sides if its an o ring chain. there should be an attachment on your chain tool thats like a flat plate. Use it to press the link on. Then use the pointy bit to on the 2 pins of the master link to mushroom the head of the 2 pins in the master link.