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This topic comprises 3 pages: 1 2 3
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Author
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Topic: Simplex gate noise problem! -> OT AAIIs suck! No, JJs suck! No, AAIIs suck!
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Aaron Sisemore
Flaming Ribs beat Reeses Peanut Butter Cups any day!
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Posts: 3061
From: Rockwall TX USA
Registered: Sep 1999
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posted 07-01-2005 01:49 PM
OK, I am finally giving up and going to the forums on this one:
I have ten Simplex 1050's, 6 1980 models and 4 1985 models. The 1985 ones were converted from electric turrets to manual turrets, and the traps were retrofitted to accept standard Simplex aperture plates. All are 'straight gate' machines.
All ten have had the gates and traps completely disassembled, cleaned, and rebuilt with new rails, etc. before the theatre went into operation.
The problem is that there is a very annoying metallic 'clatter' coming from several of the gates as the projector runs with film in them (no clattering when running empty). This clatter is so loud that it can be clearly be heard in the auditorium, so much as to cause customers (and management) to complain.
I have tried loosening the gate tension, and futzing with the gate stop bolt as to try to stop the clatter, but alas, if I back it off to where the clatter finally begins to subside, one of two things happen: Either the picture becomes unfocusable on one side, or the image gets totally unsteady to the point of being unwatchable!
I have the upper management leaning on me HARD to get this corrected, and am running out of ideas!!!
What can I do?!?!? (Sorry, Brad, but 'Buy Kinotons' is not an acceptable answer in this situation)
-Aaron [ 07-04-2005, 08:38 AM: Message edited by: Adam Martin ]
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Monte L Fullmer
Film God
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Posts: 8367
From: Nampa, Idaho, USA
Registered: Nov 2004
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posted 07-01-2005 03:36 PM
Does those 1050 studio trap verions have that gate stop allen screw on the inboard side of the trap assembly?
That stop allen screw WILL travel inwards after many gate openings and closings causing the assembly to close too tight, pinching the film, rattling the intermittent assembly, gouging out sprocket holes, and shedding film.
Also, with flat trap and gate assemblies, the upper loop needs to be built a good half-inch higher than the curved gate variety. For if the upper loop is too small, it will chatter the top of the rails in the gate.
Check the the old XL manual and you'll see this stop allen screw. The way to adjust is if the intermittent shoes are swiveling under the intermittent sprocket, the gate is closing too tight. Adjust the screw to where the shoes touch the sprocket upon closing and "think" of swiveling under the sprocket.
-Monte
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