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Rob Allen Break-Away Assembly

Thread Status: Hello , There was no answer in this thread for more than 60 days.
It can take a long time to get an up-to-date response or contact with relevant users.
Hi, you drill a hole at the side of the tube near the handle.Put the eye bolt through the hole and tighten the nut the other side.Have the ring on the side away from you.If your right handed the ring should be on the right side of the gun(as you look at it from behind the trigger mech)Rig the spear with mono & crimps in the usual way but at the loop which is not on the spear , attach the small rubber bungie.On the other end of this bungie attach the float line.In the middle of this small bungie is a small piece of cord.Put this through the ring and pull it.The small bungie should be wedged in the ring in a V shape.when you shoot the fish ,it obviously pulls the small bungie out of the ring.Joining the mono & float line to the bungie is just loop to loop, or you can use a RA. snap link.
Jon
 
Many Thanks Jon, one more thing, do i have to change in of the internal parts of the triger mechanism? the reason i am asking this question is that the break-away comes with some internal parts included ( see the attached picture)

Also the drilled hole placement should it be in the tube or the handle?
 

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You really don't need all that stuff. Just use the simple Hawaiian breakaway system. No holes to drill. When you pull the trigger, the line is released.
 

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Guys,

Below is what I received from Rob Allen:

My question here is there any way to set up the reel to be in standby mood (assembled on the gun but not connected to the shooting line) and connect it when needed?
The reel can be taken off the gun completely if not in use. There is a small screw (if fitted) locking it onto the barrel attachment slide.



The shooting line will then just be set up as per normal with a gun bungie. If the reel is needed, clip it on, slid it forward to lock, no need to put the locking screw. Then undo and remove the gun bungie and just tie the reel line to the mono shooting line. Personally I prefer this tie on system better than a clip. It is quick to release as it is a slip knot. See picture below.




The problem here is that the line release pin in the handle is behind the place where the reel assembles, so if the reel is in place it will cause and obstruction to the shooting line.


The line release is still usable even with the reel in place. Yes it is a little awkward to set the line up on the line release but it is do able :>)

Maybe you can look into moving the line release pin to the side of the handle or a bit down the barrel towards the muzzle.



This is only an option when we make a new handle, not possible with this existing handle. We are developing a new handle but this is still a long time off.

Can I install the reel on the right hand side of the handle along the barrel to keep the path open to the line release pin? although that might disturb the gun balance in the water?

I have never tried this but would see it as being difficult. For one, the bracket is easy to retro fit without disturbing the internal buoyancy (sealed air chamber) If the bracket was set in the side, it would have to move forward and this would mean the internal plug would have to move as well.

Second: break-away mechanism
Do the circular eyed screw replace the 2 screws originally assembled on the gun holding the handle to the barrel?



Yes.

Do I have to change any of the gun's internal parts while assembling the break-away?


No, you just have to drill out the holes a little larger to take the threaded pin.

The reason behind my question here is that the break-away comes with a line release pin?


The reason we supply this is because, sometimes the line release can be over loaded so it is better to have a stainless steel line release. If your gun already has a stainless steel line release, no problem.
We do have a slightly less complex break away we have just developed but it can slip off if you are not careful. This method means no drilling to fit the ring. This is the bungie.




This is how it fits.

 
i am with bill on this one. those releases (snubber? i think its called) rely on the fish jerking on the line to release the thing. this can lead to problems, not the least of which, is the gun being yanked out of your hand because the rubbre thing binded up somehow- and wouldnt release at that instant- causing the gun to be yanked out of your hand- because depending on the angle the fish runs (this would be a big fish- incidently) it may cause the snubber line to bind-up somehow. it HAS happened. to alot of spearos. i think bill m. told a story of this happening to him. it is much smoother to have the line release when YOU pull the trigger and not when the fish pulls on the gun. neptonics sells a line release adapter for this- in oreder to keep the bungee clip away from the gun. its pretty cool. i bought one 2 years ago- it works great! i have since made a couple of copies-(simple idea really) or just use the small bungees like bill is showing. i wouldnt drill any hole in that gun, period. i guess if you already have that kit- you want to use it, but i wouldnt.
 
jtkwest,

Can you please send some pictures?

I assume you want photos of the Neptonics thing? If so, here it is.
http://www.neptonicsystems.com/breakaway.htm
But I had one and gave it away. You still have a small clip next to the gun, and that clip is the weakest link. Why not just put it on the end of your float line?

Also, when I put the gun in the rack between dives, that Neptonics thing is a PIA.

There is a much cheaper way to keep hardware away from your gun. I have a short loop of Spectra attached to the loop in the shooting line, and then attach the float line to it.
 

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Personally, I think Jon P was right on the money with this one. This is as old as the oldest Japanese dive club. Simple, effective and allows variation in set up. I've used it on my sling and pneumatic for years.
 
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