vito prontor svs shutter repair manual free download pdf

I rub it in with a cotton swap being careful not to bend the blades, get it into the pivots, and remove any fibers left behind.Ĩ. Extra fine powdered graphite used by itself is an excellent lubricant for aperture and shutter blades. Sometimes the dry out is only superficial and exercising the piece of equipment will bring it back to life other times it won't.ħ.

Grease allowed to sit unused for a long period of time will have the oil separate out and the soap dry out.

I spray it into a jar and let heavily gunked up parts soak for a while.Ħ. Other brands of electronic cleaner may not be as good such as the one sold at Lowes. CRC QD Electronic Cleaner, Dead Link Removed, is an excellent degreaser/cleaner that is safe on plastics.

denatured alcohol is in the same class of potentially harmful solvents to be avoided in shutter repair.ĥ. Lacquer thinner is an excellent degreaser but will strip protective coatings off the aperture and shutter blades as well as damaging or destroying plastic and rubber parts.Ĥ. Plastic and rubber parts have been used in shutters since the 1940's.ģ. lighter fluid leaves an oily residue and will damage or destroy plastic and rubber parts. all shutter repair instructions and manuals state that the aperture and shutter blades be dry and free of oil and grease.Ģ. Reassemble the front lens parts and tighten the grub screws. Reassemble the shutter.Ĭlean the lens helicals and relubricate. Make sure that all speeds work correctly. You might need to manually turn a gear in the film chamber to tension the shutter. Once the lighter fluid is evaporated, blow out the housing to remove stray graphite particles. I usually remove the rear lens element and clean the backside of the shutter blades.

Make sure that you carefully clean the shutter blades. Turn it so the flat part is facing the retaining ring.Īfter removing the retaining ring, you should be able to remove the front of the shutter, which is the decorative plate, the shutter-speed selector ring and possibly one other piece.įlush the slow-speed escapement with a mix of lighter fluid and graphite. You usually have to rotate a small screw that has a portion of one side of the head removed. If this is a Pronto(r) shutter, remove the retaining ring. You should be able to unscrew the front group. Remove those, then remove the facing ring. There should be three tiny grub screws around the lens' facing ring. As I recall, it's a fairly straightforward fix.

Vito prontor svs shutter repair manual free download pdf