Friday, October 14, 2011

RWS (Diana) Model 45 Disassembly, Part 1

I finally got around to opening up my RWS branded Diana Model 45. It’s the second one I own and was shooting slightly slower (730fps w/ 7.9gr. CPL) than the Original branded one (800fps w/ 7.9 CPL). You can see earlier aesthetic improvements/downgrades to the rifle here.

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The rifle. I really need a larger workbench.

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This was an unwelcome surprise. Sheared screw on the scope mount. It was shifting anyway and needs a stop so I’ll have to mess with it.

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I punched out the dowel pin that retains the rear of the action (note, if you’re reading this and you don’t have a cross pin holding the action in, you don’t have an early model 45, you have the later one that is unlike this one.)

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Two phillips head screws for the front action.

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The action removed and inverted to show the trigger.

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The cocking linkage.

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Much better than welded ears for retaining the tube.

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The safety pulled out to show the little interference bar. Compare position to the picture below.

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The dowel pin that retains the action in the stock passes through the trigger assembly.

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Mounted in the spring compressor.

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I didn’t like that the force was applied to the end of the safety but what are you going to do?

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Two pins removed.

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Spring tension taken up and the trigger group removed. Things can start to fall out of the trigger group at this point so be observant.

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I pushed the piston up as far as I could. Note the spring and guide on the bench, forgot to take a picture of them.

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I need to remove the barrel to get the cocking linkage detached from the piston.

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Lock washer.

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That seems like an awfully thin pivot bolt…

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Ah, there’s a sleeve that’s the actual pivot.

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Which is a nice design as it avoids the screw being subjected to rotational forces and becoming too loose or tight.

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The end of the linkage unhooks.



More to come.

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