RB67 film back - loading film not coming to a stop and 1 doesn't show

rayonline_nz

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Mar 20, 2010

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Wellington,

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• May 24, 2019

• #1

Hi, I bought a RB67 Pro SD which is in very nice condition, the Pro S back has a defect and they offered to send me a replacement. So I have this broken one here. I downloaded the repair manual. I opened up the top cover and took off the round dial with the numbers on it but I cannot see what is going on ....

Anyone that can shed more ideas?

The film winds fine, the number 1 does not show up and for a couple of winds of the lever it doesn't come to physical stop.


Cheers.

 

M. Axel Wikstrom

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• May 25, 2019

• #2

I know with Hasselblad backs it's usually just gummed up lube. Fix mine by spraying 3-in-one oil into the works and working the mechanism until things loosen up. Maybe just an escapement not working properly. Good luck.

 

John Koehrer

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• May 25, 2019

• #3

Oddly. Or not. 3 in 1 oil is too thick and will also dry. Watch oil is the recommended product. Even that shouldn't be sprayed anywhere near a camera.

 

M. Axel Wikstrom

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• May 25, 2019

• #4

John Koehrer said:

Oddly. Or not. 3 in 1 oil is too thick and will also dry. Watch oil is the recommended product. Even that shouldn't be sprayed anywhere near a camera.

Click to expand...

Works for me. Repaired several Hasselblad backs that way 2-3 years ago and they're still going strong.

 

shutterfinger

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• May 26, 2019

• #5

M. Axel Wikstrom said:

Works for me. Repaired several Hasselblad backs that way 2-3 years ago and they're still going strong.

Click to expand...

Then you're lucky. I charge double to repair camera flushed with lighter fluid or lubricated with 3in1 oil or WD40.

 

sixby45

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Jun 22, 2018

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• Jun 3, 2019

• #6

Hmm seems like there is a service manual online somewhere - but if you have the replacement back no problem at all stripping down the bad one and cleaning with solvent or lighter fluid and carefully reapplying a dryer lubricant - even three in one oil will work however long term perhaps some gumming - depends on what you have handy or are willing to pickup