The Rapax came in 3 versions
No flash sync,
Full flash sync M-F-X as covered by the manual. M, red or black and F are types of flash bulbs; X is electronic flash.
X sync only.
The X sync only has a simpler flash sync parts and is fairly easy to service as some components are the same as the full sync shutter.
The speeds being slow says the shutter is due a full disassembly, clean, lube, reassembly. It will stop and die.
See: http://www.graflex.org/helpboard/viewtopic.php?t=6103 (scroll down to the pictures)
They are not as difficult as they seem. Keep each sections parts separate from the others for easier identification.
A trace of oil is all that is needed where oil is called for, a dab of white lithium grease or similar about the size of a straight pin head or less is all that is needed where grease is called for.
Use a degreaser that leaves no residue to clean the metal parts. I use CRC Quickdry electrical contact cleaner. Isopropyl Alcohol works well also.
Last edited by shutterfinger; 09-06-2013 at 08:03 PM. Click to view previous post history.