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Dont worry about altering the speed with the shutter uncocked, at this point it doesnt matter (well check later that its set properly). Wind the escapement about one and one-half turns by means of the ring-shaped gear, until the pin is adjacent to the triangular shaped projection. Holding in this position, refit the mechanism, guiding it over the pin sticking up on the speed-change. Still holding the ring-gear, refit the screws (very fiddly!), moving the gear slightly, if needed, to access the rear screw that goes through a gear. Now release the mechanism, it should not unwind far. If it unwinds fully, remove it and find out why! Once refitted Wind the mechanism a little, several times, it should always unwind back to the exact same point (check the pin position, it should look like photo 25).

Now set the shutter speed to 1/60 by lifting the speed-selector and turning counterclockwise. Count your way through the notches to find 1/60. Cock the shutter by turning the film sprocket in the direction of film travel (this is rough on the fingers!). Do this slowly and watch the speed mechanism as you wind. If anything fouls up, STOP and ascertain why, DONT continue to wind! When the shutter is cocked, the speed-selector should ALMOST contact the slow-speed ring-gear pin. Fire the shutter and repeat with the speed set to 1/15 or less: this time the pin should be engaged and the mechanism wound up. Fire again and see if it sounds right. Refer to photos 25 and 26 again to see how things should look.

Refit the flash-synchroniser once youre happy with the slow-speed escapement.




Part 3 Cleaning and Adjusting the Finders

This part covers cleaning and adjusting the rangefinder and viewfinder. It assumes the top plate has been removed. Access is improved if the flash-synch switch and slow-speed mechanism have been removed but this is not essential. Photo 27 shows the components.

The VF consists of two main parts: two large prisms glued together and the dioptre correction lenses. There is little to be done here beyond cleaning the faces of the lenses and the right-hand side of VF prisms block. Use alcohol on a cotton bud and clean carefully, avoiding the blackened top and left-hand side of the VF prism block.

The RF comprises a prism window, the mirror and the operating mechanism. Clean both sides of the RF prism window (it looks like plain glass but it really is a prism) but take care NOT to touch the mirror whilst doing so. The mirror is a surface-silvered one, any attempt at cleaning it will almost certainly damage the silvering. Blow any dust off but otherwise leave it well alone, dont touch the surface with anything! The pivots for the mechanism may be oiled sparingly but probably wont need it.



The RF vertical alignment can be adjusted in one of two ways. Refer to photo 28. Normally the prism (4) is rotated to correct the vertical alignment and the second method should

not be used unless this one fails to move the alignment far enough. If the prism is tight, soak its periphery with methylated spirits for a while, this will soften the shellac used

to lock it. For the second method, the mirror can be


mount.

There

rotated in

locking screw (1) which must be slackened first. Now use the two screws (2) to rotate the mirror: slacken one then tighten the other. The screw (3) adjusts the horizontal alignment and is accessible with the top cover in place. Note that adjusting the prism also has a small effect on the horizontal alignment, so do the vertical first. Horizontal alignment is best carried out with the camera fully reassembled. The screw (3) is accessible by removing the front screw of the top plate just in front of the adjuster. Use it to adjust the alignment at infinity and rotate the operating cam to adjust at 1m. One affects the other so its a case of repeatedly adjusting till you get both right -its quite tedious!

Part 4 -- Cleaning and Lubricating the Releases


This part concerns the cleaning and lubrication of the shutter release and rewind release mechanisms. It assumes the top cover is removed.

The shutter release/rewind mechanism is held in place by one small setscrew (photo 29). Before removing this screw, place a finger on the shutter release and keep it there!

Removing the screw without this precaution guarantees the parts will be launched into the air! Turn the rewind collar about halfway so that the screw is more accessible. Remove the screw then slowly release your finger. Retrieve the parts shown in photo 30 - the shutter button and spring under it, the rewind collar,



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