Thanks to William Robb, Bill Casselberry and Bob S., I think I have at least temporarily fixed the problem. The Motor Drive A appears to work fine today with a roll of 24 exp. after I took listers' advice, disassembled the rewind crank and cleaned the small amount of black crud off of the shaft and I applied a shot of Teflon dry spray lube after cleaning. Now the rewind crank seems a bit smoother. I also hit the motor drive interface (the part that actually winds) with some dry lube after cleaning any crud I could see off of it.
Flawless operation for 24 shots, we will see how it goes next, but I guess I need to find some subjects for photography if I'm going to test it any further. A follow up question- why is the drive so sensitive to a tiny amount of dirt in the camera? I'm afraid that the drive is marginal, if it can't overcome a bit of friction. If I can, I'm going to see what can be done about fixing the problem- is there a way to get this thing fixed permanently? I'm afraid that the replacement from KEH will exhibit the same problem, just a matter of time. Taka - This message is from the Pentax-Discuss Mail List. To unsubscribe, go to http://www.pdml.net and follow the directions. Don't forget to visit the Pentax Users' Gallery at http://pug.komkon.org .
