High Standard Double Nine disassembly?

[BCRider]

I'm wanting to break down my D9 so I can look at making up lighter springs all around and possibly polish up some of the works. It's a great gun to shoot but the single action pull is still pretty heavy and the double action pull defies description.

So I pulled out the screw at the hammer pivot and tapped out the pin up front and that loosened the rear frame but it wiggles then jams solid and that's as far as I get. Tried it with hammer cocked and not and held in between, pushing in the cylinder stop, trying to push in the front spring dowel for the cylinder crane but all to no effect. Tried pulling out the hammer, since that seemed to be in the way, with no effect and no pulled hammer.

Even tried tapping the sides with a block of soft wood thinking that one of the pins inside is sticking. No joy there either.

So I'm thinking there's a trick to getting the two parts of the frame apart. But I don't know what it is.

HELLLLLLP! ! ! ! ! !

 

[rcmodel]

Oh my!
If you have to ask you shouldn't have done it!
The Hi-Standard double action while relatively simple, is a gunsmith nightmare.

The springs are held in with the pins, and you have to use slave pins to put one back together to get everything in place in the trigger housing before reassembly into the frame.

I don't know what is stuck now that you removed the hammer screw & pin, but I do know it isn't going back together at this point until you can get whatever is out of place to come unstuck.

Here is a schematic for a Sentinel, which is the same thing internally as your Double-Nine.
http://www.marstar.ca/images/hssentinelb.gif

rc.

 

[jim147]

Well it's been about six months since I've had mine apart. I think you need to compress the main spring to take the pressure off the hammer.
I guess I deleted the pictures I took when I did it. I don't find them on the computer anymore.
Sorry not much help. I don't feel like taking this one back apart today. I you can't get it figured out post again. I my have more free time in a week or so.

jim

jim

 

[BCRider]

Rc' I've got the manual that came with the D9 and it has a similar diagram for parts but for the actual D9 so I'm OK there. And at some point before I was tempted to bring on the BIG tools I stopped and posted here so no harm done. The only exposed front pin and the trigger pivot screw went back in just fine and it's as perky as it was before I started.

Jim, your thought of compressing the mainspring is encouraging. I'll see if I can make up a gizmo that reaches in and let's me compress that spring without pulling on the shaft of the hammer rod/shoe.

Oh, and rc', you're conversing with anothet modeler here. Been building, designing and flying since the mid 60's. Lots of free flight, control line as well and RC. Even did a few years of indoor free flight including microfilm back before modern super thin plastics took away our pouring pools of water on the mother's dining table.....