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Simplex X-L: Difference between revisions
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Added "Cleaning" section
JesseCrooks (talk | contribs) (Added "Maintenance" section, added instructions for pad roller adjustments / cleaning) |
JesseCrooks (talk | contribs) (Added "Cleaning" section) |
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First set the framing mechanism to the center of its travel. Rotate through the entire range of motion to determine the center. Then, from the operator side, press firmly on the framing handle to compress the framing shaft friction spring until the framing gear disengages from the idler gear. Rotate until the word “Frame” reads level, and release to reengage the framing gear. | First set the framing mechanism to the center of its travel. Rotate through the entire range of motion to determine the center. Then, from the operator side, press firmly on the framing handle to compress the framing shaft friction spring until the framing gear disengages from the idler gear. Rotate until the word “Frame” reads level, and release to reengage the framing gear. | ||
==Cleaning== | |||
===Regular Cleaning=== | |||
Between each reel clean all film bearing surfaces, especially the gate and trap. | |||
*Remove the gate and wipe it down with a cloth. Make sure to remove any deposits on the curved runners. Remove heavy deposits with your fingernail or another soft material. Do NOT scrape it off with metal. Brush out both sides of the intermittent pad shoe. It can be hard to see dirt in this area, and cleaning it every time will prevent it from accumulating. Check for any dirt accumulation elsewhere (including inside the gate) and clean as necessary. | |||
*Wipe down the tension bands, and brush out the hard-to-reach surfaces of the trap, including the lateral guide rollers, taking care to clean the inboard edge of the trap where dirt is hard to see. | |||
*Wipe down all rollers. Hold a clean section of cloth against the roller and spin it. Repeat with a fresh section of cloth until the cloth comes up clean. Use a toothbrush on any heavy deposits. | |||
*Check for dirt and emulsion build-in on the sprockets, and brush them off as necessary. | |||
*Wipe out any accumulated oil. Check around the intermittent, at the base of the projector head where oil tends to pool, and anywhere else that oil tends to seep into the operator side. | |||
===Deep Cleaning=== | |||
The projector should be deep cleaned on a regular basis. The frequency required will depend on factors such as the number of prints being run (and how dirty they are), the length of the time the projector sits idle between shows, and the amount of oil the projector leaks. | |||
*Remove the lens and aperture plate if present. Remove and clean the gate and set it aside. | |||
*Remove the trap. It is seated on two posts on the main main casting and held in place by a captive screw located between the framing aperture and the picture aperture. Loosen the screw, and pull the trap towards you. You can place one finger through the framing aperture for better control. With the trap removed, clean all surfaces, including the back (lamp side) of the trap. Wipe off any oil that has accumulated on the inboard end. Leave the trap out while you continue cleaning. (Note that when reinstalling the trap, you should partially open the fire shutter using the fire shutter reset button to ensure that the trap doesn’t bind against the fire shutter. Lift the fire shutter until the trap is seated on its posts and then release. After reinstalling the trap, open and close the fire shutter to ensure that it is moving freely.) | |||
*Remove the spot sight box. It is mounted on two shafts. On some versions, the entire upper shaft is removed, while on other versions there are removable knurled nuts on both the upper and lower shafts. | |||
*Remove the lower rear cover. It is held in place by three hex screws. One is located at the top of the cover (formerly hidden by the spot sight box) and the other two are at the base of the cover on the lamp side. | |||
*With the gate, trap, spot sight box, and lower rear cover removed, you have much greater access to the interior of the film compartment, especially the area around the intermittent. Manually advance the mechanism to rotate the shutter in order to access different areas for cleaning. Rotate the framing mechanism through its range of travel in order to reach different sections, and to access the recessed areas around the intermittent sprocket from different angles. Likewise, open and close the gate mechanism (with the gate removed) to expose different areas for cleaning. | |||
*For better access, it may be helpful to remove the film strippers, especially the stripper beneath the intermittent sprocket. That is a spot where dirt tends to accumulate, and it is difficult to access for cleaning. When reinstalling, make sure the stripper isn’t binding against the sprocket, but it should be close enough for the end of the stripper to be below the base of the sprocket teeth. | |||
*For a major cleaning, also remove the pad roller assemblies. They will be easier to clean outside of the projector, and removing them will provide much easier access to the deeper areas. | |||
*Clean the back of everything (sprockets, rollers, roller arms). Just because you can’t see it doesn’t mean you can’t clean it! | |||
==Maintenance== | ==Maintenance== | ||