RWS Diana RWS 48 cocking arm locked up

Looking at these 2 explanations maybe you .. where they bring up the trigger and to try to decock it somehow ..lol



Hector is the Diana guru..

https://www.gatewaytoairguns.org/GTA/index.php?topic=158863.0

So if you can do it or look up more on how to and get it released it may just be fine after that ?

If you get it freed the shoot some wd in the trigger assembly it could be stuck dry goop from sitting sticking things up .

ETA said:

The arm was fully cocked all the way back but only goes about half way forward and button is locked in down position. They say nothing is more useless than an unloaded gun but how about a loaded gun that won’t fire. I have a cleaning kit so at least was able to gently push the pellet out and have safety on.

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You could have a pellet jammed between the beartrap and the cylinder. It's a very easy gun to disassemble but not when it's cocked.

,

Just received a Diana 48, and right out of the box, I had a problem in which the sidelever would cock to about the 80-90% point — and then stop. I had to manually pull the sidelever back an extra 1/2″ or so while pressing the lever safety to release and return the sidelever to its seated position. I had to do this 8-10 times before the rifle started to cock properly.

After about 50 shots, the lever cocking problem returned, and I was unable to cock the gun.


Thing is getting it to decock do you can move on to find a issue .

All your going to do is spray light lube in the trigger ( maybe non chlorinated brke cleaner to break up and old tumbled up lube or grime from it sitting around .

Then you best do a tare down clean inspect freshen the rest . Some claim bad spring or guide then if sitting that spring and guides lubricant could of hardened up and sticking up the works .

Anyway this is all part of air gun ownership and the experience that you need to go with it ..

( Man. I had to use woketube )


Check utube on dissembly/ tune of the 48 just use your parts unless you see something needed

DO not use any pressure to return the cocking arm to the closed position ! You will bend the smaller round bar . I assume you tried jiggling the arm while trying to push the bear trap button several times ? do this carefully , as the spring might release . Do not let go of the cocking arm .

beerthief said:

DO not use any pressure to return the cocking arm to the closed position ! You will bend the smaller round bar . I assume you tried jiggling the arm while trying to push the bear trap button several times ? do this carefully , as the spring might release . Do not let go of the cocking arm .

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Ya, don't allow something under spring pressure snap back uncontrollably.

Especially if fingers are involved .

I was surprised how many guys and 48's run in to this . I'd look at GTA or agw forums that has lots of old springer guys and these guns for any extra tips ..

Seems correctable but getting it decocked comes first and safely.

I would think if you finagled the anti bear trap mech and hold the arm and fire may work .

It's hard to diagnose / real help online and not be hands on for more clarity.

Oh your in Connecticut?

The Diana guru is to

Seems like you just have something stuck in the anti beartrap. the action should still easily remove from the stock so you can see it.

all good ideas,old is always in need of lubrication
use some good penetration spray; now some can ruin the seals; work it easy,...I had this happen on my R-9,the cocking shoe broke and got jammed between the tube and ...anyhow,it could be a pellet as stated above. Step by step process,let the penatrading oil set a while .You may need a rebuild to.....Good luck

ETA said:

Appreciate the responses. Have tried moving the lever back and forth and pressing button down but nothing will budge and don’t want to force anything. Wondering if I should try with safety in fire position and if that and oiling the trigger assembly is unsuccessful would the next step be firmly holding the lever arm and trying to fire it. This is not something I want to try but possibly as last resort because would otherwise have to remove arm to fit in box and send a cocked gun to repair guy. Disassembly is currently above my pay grade and don’t have the time or proper tools

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https://www.ctcustomairguns.com/ Give Hector a call and i am sure he will have an answer , very helpful person
(might be in driving distance from you )

Ya, sitting up or little to no long term use hurts my guns more the anything and pretty much need take down to insure everything's good or gunked up ..

ETA said:

Appreciate the responses. Have tried moving the lever back and forth and pressing button down but nothing will budge and don’t want to force anything. Wondering if I should try with safety in fire position and if that and oiling the trigger assembly is unsuccessful would the next step be firmly holding the lever arm and trying to fire it. This is not something I want to try but possibly as last resort because would otherwise have to remove arm to fit in box and send a cocked gun to repair guy. Disassembly is currently above my pay grade and don’t have the time or proper tools

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Take the stock off first. You can get a good look at the beartrap, might be a simple fix.

So you can't pull the cocking lever back to where it cocks the rifle. I'm thinking pellet jammed also. I've owned my D48 for 30+ years and have had the pellet drop out of the breach. I also would check the anti bear trap to make sure it's releasing correctly.

ETA said:

Appreciate the responses. Have tried moving the lever back and forth and pressing button down but nothing will budge and don’t want to force anything. Wondering if I should try with safety in fire position and if that and oiling the trigger assembly is unsuccessful would the next step be firmly holding the lever arm and trying to fire it. This is not something I want to try but possibly as last resort because would otherwise have to remove arm to fit in box and send a cocked gun to repair guy. Disassembly is currently above my pay grade and don’t have the time or proper tools

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https://www.ctcustomairguns.com/ go on this site , under contact , fill out the space provided and Hector will get back to you .

ETA said:

Do not think it would be a pellet that’s stuck I was able to fire it once and saw where it hit the target. Unless a pellet has been stuck down in guide somewhere and was never realized by previous owner. Tried some lube on the trigger but being cocked makes me hesitant to try dissembling anything and going much further. Will definitely call the repair guy in CT tomorrow. Thanks for that contact didn’t know I had an expert in driving distance

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I had this happen and I stupidly sprayed the mechanism with WD40, the piston broke off, the lever fell apart, I don’t know what happened to the piston, I didn’t disassemble the rifle after that, I sold it as is. It’s better to give it to a repairman.

Ievgen721 said:

I had this happen and I stupidly sprayed the mechanism with WD40, the piston broke off, the lever fell apart, I don’t know what happened to the piston, I didn’t disassemble the rifle after that, I sold it as is. It’s better to give it to a repairman.

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That's some mean a$$ wd-40