David referred me to Hasselblad Service in NJ--I'm rather surprised but that's his reply--Any other suggestions before I contact Hasselblad Svc in NJ---Ouch --big bucks !!
As much as I would like to service this camera for you, it would be best if you sent it to the Hasselblad service center in New Jersey. The shutter in these very early SWC's contain many different parts from the newer models. In the past, while working on these cameras, I have found minor parts that needed to be replaced, but most of the parts are no longer available.
Your best bet would be to send it to Hasselblad USA. Here is their contact information:
333 New Road #5
Parsippany, NJ 07054
Their telephone number is (973) 227-7320.
Any update on if you were able to get this camera serviced?