Graflex.org Forum Index Graflex.org
Get help with your Graflex questions here
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Sticky R. F

 
Post new topic   Reply to topic    Graflex.org Forum Index -> Speed Graphic Help
View previous topic :: View next topic  
Author Message
Kyle M.



Joined: 14 Dec 2015
Posts: 2
Location: New Haven OH

PostPosted: Wed May 04, 2016 2:47 pm    Post subject: Sticky R. F Reply with quote

I have a top rangefinder Crown Graphic with it's original Schneider Xenar 135mm and the matching cam. The RF is dead on but sometimes when I focus up close the RF will cease to line up at closer distances. It just kind of sticks. Example if I focus on a object 6 feet away the images won't align, a slight tap on the body just below the RF housing will free it up and then I can move the focusing rack in and focus. If I give a slight and I mean really slight tap on the side of the body just below the RF housing will cause everything to work again. Then after several sequences of racking the bellows in and out it will stick again.

It only seems to do this if I attempt to focus closer than about 8 feet. I don't think it has anything to do with the tube that runs from the bed to the RF because the plunger is moving freely. It seems to me as if something in the RF itself is sticking from time to time. Possibly the cam? Has anyone run into this issue before? Any help would be greatly appreciated.


Thanks, Kyle.
_________________
Graflex Pacemaker Crown Graphic 4x5, Schneider-Kreuznach Xenar 135mm F=4.7
Back to top
View user's profile Send private message
45PSS



Joined: 28 Sep 2001
Posts: 3626
Location: Mid Peninsula, Ca.

PostPosted: Wed May 04, 2016 6:14 pm    Post subject: Reply with quote

Go to http://www.southbristolviews.com/pics/Graphic/manual-pdf/servicemanual.pdf and download this pdf version of the factory service manual.

90%+ of the time its the tube and its 40 to 45 balls and spacers that need to be cleaned. The only lubrication that can be used on the balls and spacers is extra fine powdered graphite or dry film teflon. The cap at the bed has a tendency to come off, there a a few posts in the past about it.
_________________
The best camera ever made is the one that YOU enjoy using and produces the image quality that satifies YOU.
Back to top
View user's profile Send private message Visit poster's website
Kyle M.



Joined: 14 Dec 2015
Posts: 2
Location: New Haven OH

PostPosted: Thu May 05, 2016 1:47 pm    Post subject: Reply with quote

Thanks I may look into that eventually. I mainly use the camera like a view camera and with other lenses, though there are times I'd like to shoot it handheld just to say I did. My main camera is my Pre-Anniversary Speed Graphic which had the VF and RF removed by a previous owner.
_________________
Graflex Pacemaker Crown Graphic 4x5, Schneider-Kreuznach Xenar 135mm F=4.7
Back to top
View user's profile Send private message
jpjgilchrist



Joined: 22 Jan 2017
Posts: 1
Location: South Bend, IN, USA

PostPosted: Mon Jan 23, 2017 4:35 am    Post subject: Reply with quote

This may not solve your problem, but I just fixed a sticky rangefinder that was behaving similar to yours. Mine would stick, and thunking the side of the camera would get it to pop back and work until you racked the camera out and back. The problem with mine was that the light bulb in the range finder had burned out, and I had replaced it with a similar but slightly larger bulb. The new bulb was pressing on the parallax mechanism, and causing the return spring to not have enough force to return the rangefinder mirror. I removed the light bulb, and all seems good now.

If this doesn't help, there is also a spring inside the camera under the parallax mechanism that could have come off. It applies force to the cam follower, and if the spring pops off then the cam just kinda floats.

Hope this helps.
_________________
I shoot de peektures, de camera go clicky clicky.
Check out my film work at www.JonGilchristPhotography.com/Film
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Graflex.org Forum Index -> Speed Graphic Help All times are GMT
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group