Difficulty level to repair a Diana 460?

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genericAGuser

genericAGuser

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May 1, 2019
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Klamath Falls, Oregon, United States
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This is my 07-08 T-05 .22 460mag, and you can see from the photo that the cocking lever is stuck, the release is frozen also. How hard would this be to diagnose and repair? It is not under tension anymore

I have tools and I can acquire a schematic. It hasn’t been shot that much over the years. I asked someone local where to oil it, a long time ago, and they said just shoot it every so often. 
 
Agreed use a spring compressor. I use a clamp from harbor freight that cost 12 bucks with some foam and electrical tape to cushion the barrel and on the back end of the gun where you compress I use a socket that fits the size I need, also with tape to prevent slipping. I or you can buy a spring compressed from pyramid air that's way nicer lol. Anyway press in until the cross lot is loss enough to punch free with very little pressure. Gently release the spring compression and pull it out. Inspect spring clean off and set aside. There should be a small mechanism of some kind on the lever from the barrel to the piston that holds the seal. Mine had a bolt in the barrel I removed then simply turned to the side to remove. Piston should just slide out of the sleeve. At this point I would clean piston remove seal and clean inside the piston sleeve as well. Inspect with flashlight. I highly recommend buying a new piston seal and breech seal before even doing this because you could forget how all the pieces go together waiting for seals in the mail.... Ask me how I know that. Anyway I am guessing you have a broken spring but you won't know until you look. The issue should be obvious and easy to fix. This would be a good time to polish all parts and cross hatch the piston sleeve. Lots of vids on this process. Remember to moly the spring before reassembly at the very least and put a thin amount of moly on the sides of the piston seal. So thin it looks slightly discolored like it just looks wet. Too much and you will be dieseling bad. Don't let it seem to hard you can do it! I did it on an old bam sidelever and they share alot of parts. I had no experience before doing it. Watch vids about the lubeing though. I put too much the first time. Good luck buddy. 
 
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I no no one mentioned ?please close leaver before taking off stock" if it goes off with the leaver like that it will bend the rod.After you get the stock off you should be able to see if the spring is compressed?if it is you need to trip the Triger inside with small screw driver.Please don't try to take it apart with the spring compressed"💀
 
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To be clear, the whole thing is locked into that position, it will not move in any direction. The lever that releases the cocking arm is unmovable. I pulled the trigger to release some tension, that’s all it would do.

So I guess I’m not taking it apart after all. That was a $500 gun shot less than 300 times total. If anyone can recommend someone for repair local to DFW/North Texas?
 
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I’d see that the screws holding the gun to the stock are tight. It appears to me the gun has not been fully cocked and something is preventing it from being so. You say the gun is not under tension. When you cocked it if you felt spring pressure against the cocking lever it’s under pressure LOTS of it. If the cocking lever moved into that position against no pressure then you are correct and the cocking lever itself is the problem. I’d at least remove the gun from the stock and see if you can complete the cocking stroke. And look for the obvious. Shipping the gun in that condition is going to be difficult. 
 
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I’d see that the screws holding the gun to the stock are tight. It appears to me the gun has not been fully cocked and something is preventing it from being so. You say the gun is not under tension. When you cocked it if you felt spring pressure against the cocking lever it’s under pressure LOTS of it. If the cocking lever moved into that position against no pressure then you are correct and the cocking lever itself is the problem. I’d at least remove the gun from the stock and see if you can complete the cocking stroke. And look for the obvious. Shipping the gun in that condition is going to be difficult.
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Agree. I have a TO6 460 and the above is what I would do, very carefully. I would look initially at the anti-beartrap release area.
 
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Glad some one agrees. I’d do the following. I’d put they gun stock on my knee and hold the barrel in my left hand. Maintaining control and some down ward pressure on the cocking lever. If it doesn’t cock I am going to assume it will not. Then ask some one to tighten the action screws as you maintain control of that rifle and the cocking arm. Expecting that that arm is going to let loose from what ever has it bound up. If no joy have you helper back the action screw or screws out and remove the gun from the stock. Be careful because I’m expecting at some point that cocking arm is going to let go of what ever has it in a bind. 
let’s us know how you make out. 
 
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That gun would have been on its way back for warranty a day before YESTERDAY. LIFETIME WARRANTY WORKS. Yo!
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Exactly how do you suggest he ship that gun?
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First off I have to find the 12 year old receipt. They want me to remove it from the stock, knock a pin out, lower that cocking arm, yes be careful, keep your fingers clear. I have bubble wrap at work. But no receipt right now, so I’m waiting on a local repair guy to call me. Thanks for the help.
 
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That gun would have been on its way back for warranty a day before YESTERDAY. LIFETIME WARRANTY WORKS. Yo!
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Exactly how do you suggest he ship that gun?
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First off I have to find the 12 year old receipt. They want me to remove it from the stock, knock a pin out, lower that cocking arm, yes be careful, keep your fingers clear. I have bubble wrap at work. But no receipt right now, so I’m waiting on a local repair guy to call me. Thanks for the help.
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If you get it out of the stock, you may find the source of the problem. If not, you can always take it to the "repair guy". Just use caution in handling it and a second pair of hands to hold things would be good.
 
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Aren't LIFETIME WARRANTY for RWS DIANA a NO RECEIPT TYPE? I RECALL MAYBE 15-20 years ago I screwed up 2 RWS 54s messing with their T01 trigger adjustments and BOTH would NOT FIRE. SENT BOTH FOR WARRANTY COCKED WITH PELLETS IN BOTH BARRELS WITH SOME CUT 2X4s and a 1/4" steel plate and towels against their muzzles just in case they went off during shipping then received 2 brand new replacements maybe 2 weeks later. They weren't the same ones since their serial numbers on the guns returned to me were different. Has anything changed? Yo!
 
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Aren't LIFETIME WARRANTY for RWS DIANA a NO RECEIPT TYPE? I RECALL MAYBE 15-20 years ago I screwed up 2 RWS 54s messing with their T01 trigger adjustments and BOTH would NOT FIRE. SENT BOTH FOR WARRANTY COCKED WITH PELLETS IN BOTH BARRELS WITH SOME CUT 2X4s and a 1/4" steel plate and towels against their muzzles just in case they went off during shipping then received 2 brand new replacements maybe 2 weeks later. They weren't the same ones since their serial numbers on the guns returned to me were different. Has anything changed? Yo!
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