How to replace older SF lenses?

[donn_]

I'm talking about the old D26 sized heads like those on 3P, 6P etc.. The lenses seem to be press fit, and have no retaining ring like newer models.

Is there a way to do this?

:thanks:

 

[DaFABRICATA]

They are a PITA to remove and replace.

First get the old one out by knocking it out the front from the back using a punch and hammer.

To get the new one in, first the gasket goes in, then the replacement window, then place the foam disc over the window to protect it.
Next place a nickle over the foam (or other soft material to protect the window from scratches)
I then placed the bezel on a hard surface(workbench) and carefully pressed down on the nickle using the end of a hammer handle.
It is hard as hell to get in, but with careful force it will go.
I have also done the above procedure, but added a quarter on top of the nickle and stepped on the bezel while it was on the floor.:duh2:

Good luck...it isn't the easiest thing to do.:sick2:

 

[donn_]

"The gasket" "the foam disk"

Is there some sort of a kit which contains these parts?

I was thinking about using a glass lens, and holding it in place with a Viton o-ring.

 

[DaFABRICATA]

The replacement window kit for the 3P,6P, 9P bezels is the Z17 Kit. It is a lexan window

The gasket is a rubber washer that goes in first before the window.
The foam disk is used to protect the window during installation and is removed after it is in place.

Other than that, I don't know of any other "kits".

Hope all that makes sense.

 

[donn_]

Yep...makes perfect sense.

I see the gasket inside now, and I imagine I can replace it pretty easily, if needed. Then all I have to do is find the right size glass lens, and figure out the best way to hold it in place.

Thanks, Tim!

 

[Sgt. LED]

Well GOOD LUCK!

You have to find a glass lens that is just barely too small and then find a big snap ring to go over it and lock in the old lens groove.

The proper size lens, if made of glass, will break before going in.

 

[donn_]

Oh ye of little faith! Where there's a will, there's a way.

The glass lens only needs to be big enough in diameter to sit on the gasket. It can then be restrained in a variety of ways; a stiff Viton o-ring, slightly over-size with a few tiny tack spots of silicon glue will probably do it. If not, it can be glued in with clear epoxy.