Bill, I have had a BL-22 for several years and what the others are saying about short-stroking is absolutely true. I have done it twice... my 11 yr old continues to do it more frequently. When I learned to work the action with authority--not overly, mind you-- but just with authoritative snap of the wrist, I never again had any problems.
Best of luck learning how to disassemble: I took one look and determined that q-tips and Break-Free were the way to go. I occasionally run a bore-snake through the barrel, but other than that it simply gets a wipe-down after each use or handling with a silicone impregnated cloth and put back into the cabinet.
Enjoy, 'cause it's a fine little rifle.