FROM: "Mike" <nedsnake@earthlink.net>
SUBJECT: Re: RB67 Pro-S back not winding film tightly
DATE: Sat, 25 May 2002 05:40:25 GMT
ORGANIZATION: EarthLink Inc. -- http://www.EarthLink.net
NEWSGROUPS: rec.photo.equipment.medium-format

"David Strip" <""davidstrip\"@
comcast_followed_by_dot_followed_by_net.nothing> wrote in message
news:Z7FH8.8198$Kp.1215497@bin7.nnrp.aus1.giganews.com...
> My 220 back doesn't seem to wind the film tightly, which leads to light
> leaks at the edges of the last few frames. Unlike my 120 back, the film
> is visibly "sloppy" on the takeup spool when it's done. Is there an easy
> tension adjustment I can make, or do I have to take this to a repair shop?
>
> Thanks.

Assuming you are talking about the ProS 220 back the answer is yes, there is
an adjustment.
Looking at where the bottom of the supply spool sits is the lower spool
support. The support is mounted to a plate with a large headed screw.  Under
the screw head is a spring washer that applies tension to the supply spool.
The spring washer needs to be replaced, remove four screws the bottom cover
will fall off.
You can get the part from Mamiya America.   part # 5071 - 66471
Good luck
Mike
www.fridaycreekcamera.com