This camera had one issue … the self timer lever got loose and fell into the body of the lens, which cause other things to jam up. So now time to get to the shutter mechanism.
Tools, well you should be able to figure that out by now.
Warning … there are many unsecured things in this complicated shutter!!
As I swore about before … the first thing to remove is the nameplate. On this particular version the nameplate is glued on … you might find a model that has this as a threaded ring, so check before spending the next hour trying to get it off.
So after prying it off (without bending it) you can now unscrew the front group of elements with your spanner wrench.
Under that you will see three screws that hold on the rest of the rings.
There are three rings that will come off.
After removing the screws, carefully take off the securing ring and then the shutter speed ring.
Once you get down to here, you will find this inner plate and underneath there will be some brass washers and a thing for the aperture ring steps
OK, so these are those things left over that you should now see … put aside the washers and the step metal thing,
Set the focus at minimum. remove the five screws holding the cover on, then take it off.
Remove the shutter speed cam plate.
Note its position.
Try to keep this camera on its back, as there are many shutter items that will fall out.
The shutter cocking ring, in the middle is spring loaded.
Note the many levers, gears, and things that connect to this ring.
Remove the ring.
The self timer lever is at 11 oclock and it has a spring to keep the arm in a clockwise position.
This image shows it after I screwed it back on.
Self-timer gears are at 9 oclock and slow shutter speed gears are at 6 oclock.
When putting the shutter cocking ring back on you will need to move some levers in their set position … like the two at 1 and 2 oclock. Th ring should sit low enough that the shutter speed cam plate does not impede its movement.
You will need to move the shutter speed cam plate around to get the little arms to engage in the slots … before you put the cover plate on. Things should rotate cleanly after you put the cover on, if not, take it off and adjust things.
This Old Camera 
Hi there. Can you help me with some timer repair? I recently got this camera and the timer is permanently on. The timer lever was wedged in the gears and I managed to get it out. However I could not put the lever back together with the spring. I assume the spring sits on top of lever and is the screwed into place? I can’t seem to get the spring to sit in place. The shutter and the aperture still works but I now have to wait for the timer to engage to take a picture. Your help would be appreciated.
Hmm, I don’t actually remember if the spring sat under the screw, or just around the outside. Though it you tighten the screw and you do not see any space under it … then it means the spring sits outside.
Hi Dennis. Thanks for the reply! I managed to get the spring to sit in place. It just sits on the lever and is held in place by the screw.
You did mention that the spring should keep the lever in a clockwise position. Does this mean that the bent section (right angle) of the spring needs to go over to the bottom right side of the lever so that it rotates the lever. Right now the spring is not engaged and the right angle bent section is to the left of the lever (based on the same orientation as you pictures)
Right now my camera is stuck with the timer on.
Hi! Amazing post! Can you help me with an issue? shutter speeds below 1/15th is taking much more time than it should be. I am guessing there is some sort of spring mechanism in the lens for the slower speeds as you hear a slight buzzing when you set the shutter to slow speeds.
Sounds like the escapement needs to be taken out, cleaned and lubed.
The buzzing you are hearing is from the star wheel that is being engaged when lower speeds are set.
I did not get down into this shutter (I did not have the skill at that time) … but it looks like the escapement is on the bottom section … this is a more complex mechanism so looks like more moving parts.