I took down one of these guns today, cleaned it and put it back together. I was able to find a photo of an instruction manual. I've moved a copy to my website as I'm not sure how to include files here. It can be found here: http://themdg.org/pics/posts/win270instr.jpg
Feel free to contact me if that link doesn't work someday.
Just in case, I've transcribed the take down and assembly portions below.
Some tips:
Text below is transcribed from the Winchester 270 instruction manual, linked above.
HOW TO TAKE DOWNYou need a manual. Contact Winchester or find a gunsmith and ask for help.
don't take down a Winchester model 52, the way they bedded the rifle was a mystery. It may never shoot the same if you take it apart.
Best left to a factory trained gunsmith
You should be able to find a assembly-disassembly guide for your Winchester model 37 on E-bay.If not you may to need to visit a qualified gunsmith.
You need a copy of the owner's manual for your rifle- trust me- parts of the bolt are tricky. You can get a copy for free from Winchester is you are in the US. The link below will take you to their order form on their website.
You can request an owner's manual for free at the Remington website.
You need to ask a gunsmith for help.
hit it with a hammer
You can get the manual from this page with some basic info. http://www.winchesterguns.com/services/index.asp
You can request an owner's manual for free at the Remington website.
Take it apart with a punch and clean it
take it to a gunsmith