I need a parts diagram for a benjamin sheridan model 397 air rifle. I especially need a section showing the trigger assembly in an exploded view.

This seemed to be a pretty insightful lead, http://www.pyramydair.com/blog/2005/09/fix-your-benjamin-or-sheridan-pneumatic-at-home/

Good Luck!

HERE'S A LINK TO YOUR AIR RIFLE INSTRUCTIONS.

Contact the authorized repair facility in your area. It is listed in the back of the manual By Blue Streak I am assuming you have a C9 which is .20 caliber. They will direct you as to what can be done to fix or repair your air gun. I have a Benjamin Sheridan C9 Blue Streak from circa "95" when they still ad walnut stocks. I have shot maybe 20 pellets out of the 500 rounds in the red Diablo pellet box I bought with it. Paid a hefty $170 or so for it new. It is still like new. Bought a Beeman .177/.22 switch barrel barrel cocker. I hate all the pumping.

pyramidair.com has a seal kit. it also comes with a diagram. Benjamin and Sheridan air rifles do not have springs to propel the pellet. also never use vasalin. specifically for a Benjamin or Sheridan you need to use pelgun oil (also found at pyramideair.com). use pelgun oil because it is a non detergent fossil compound) the main intention is to condition the seals every 250 rounds. never use silicon based lube for this gun specifically. silicone lube is for spring air rifles such as break barrels.

http://www.crosman.com/airguns/service/repair

I couldn't find the model 317, But crosman bought benjamin, sheridan. Check it out.

Crosman bought out benjamin / sheridan, and they still repair just all their pump guns. The ring sounds like a piece of a pellet, the barrels are silver soldered to the bottom tube, Not lead. Also, the repair kit should not have too many parts, you can only go so far with those guns before needing special equipment to get them apart. Get a hold of Crosman and tell them that benjamin sent you a bad part. They should fix it.
I had an old Benjamin Franklin in .22 cal, it was just a brass tube with a stock and barrel. I sent it to them, to be repaired, and I wanted the .22, because I had the 5mm and the 177. So I got it back, cost $29, New barrel, in .177, soldered on, new guts, new paint, trigger, bolt, the works.. Brand new gun. I told them I wanted the brass and I wanted the .22, They said oops, sorry. I didn't complain, nice old gun. Hope this helps.

I recently purchased a rebuild kit for my 342. I bought the kit from airgundepot. It was the kit for the
392 and I modified it a little. On the new plunger, you have to drill a hole in the center of it the same
size as the pin's smallest diameter. You can use all of the parts in this kit except for the small o-ring. I think it sold for about 39 dollars or so. My rifle was manufactured in 1972 and it fires like new.

HI, I found something on amazon. here: Crossman Air Guns Model 760 Pumpmaster Owner Manual English spanish... . I hope I have helped. cheers