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This topic comprises 2 pages: 1 2
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Author
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Topic: Simplex XL Problem
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Paul G. Thompson
The Weenie Man
Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 03-14-2001 06:01 PM
Obvoiusly, you have a major problem. If the intermitttent is walking itself with a clankity noise, the movement itself might be getting ready to cease up on you. Roll the projector through BY HAND and see if you can find a definate bind when the intermittent indexes and makes a pull-down cycle. If it does, I think the movement is very ill. There are some other things that will cause the movement to walk, but lets look at the obvious first. Something can be going to hell in the compensator, too. Steve Guttag posted something about walking intermittent movements several months ago, and he said this:
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<<Another cause of wondering framing, though it doesn't sound like it in this case, is the shutter compensator...if it is vibrating..the compensator can "tap" on the intermittent case and cause it to rotate. A really bad compensator can walk the framing around in about 15 seconds.>> <<Yes the shutter compensator is driven off the G-1803 but the shutter compensator has it's framing rod and roller (P-1479 and P-1480 respectively) riding on the intermittent framing cam (P-1708). Depending on the strength of the P-1705 clips and the vibration transmitted through the framing rod (from a vibrating compensator), the framing rod will actually push the cam around.>>
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I kind of wish more fellows would post what they did to clear the problems with the equipment. What Steve said above about a walking intermittent could also be your problem if the movement is ok. By the way, is the shutter clanging on the housing? If you have a sprung cover, it can do that - and it could send one helluva shock through the gear train.
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Randy Stankey
Film God
Posts: 6539
From: Erie, Pennsylvania
Registered: Jun 99
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posted 03-14-2001 08:32 PM
It's pretty hard to describe noises over the computer like this, but can you characterize it a little better? Clank? clunk? chatter? rattle? knock? or even "Meep! Meep!...Zip-Dang!" (Sorry, I couldn't resist that one!  )If it's a "rattle" or a "knocking" sound, similar to the sound a car engine might make when it's "deiseling", your intermittent is probably about to shit the bed. How's your image steadiness? If it's getting jittery, that's another sign. Seeing as it's now Wednesday night, you could call-in for a replacement to be shipped overnight. It will go out tomorrow afternoon and with luck it'll be there Friday morning. If it IS a bad intermittent and you wait another day the thing could die on you in the middle of a show on Friday night! You won't be able to call-in for a replacement until Monday at the EARLIEST! That means you'll be off-screen until AT LEAST Tuesday! Don't let your managers stone wall you on this one! Do your best to confirm this diagnosis right now!
Yes, your managers will whine about having to spend $1,000+. Tell them to look at it this way: You're going to HAVE to spend this $1,000 no matter what. (Assuming it is the intermittent.) How would they like to make that $2,000? That's what they are going to LOSE if that projector is down for the weekend!
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Pat Moore
Master Film Handler
Posts: 363
Registered: Mar 2000
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posted 03-14-2001 09:58 PM
Hi Don; Couple obvious questions I'm sure you looked at, but here's the drill. Certainly appears to be intermittent-related.Oil in the projector is one thing. Is it being pumped and sprayed around? You should also be able to see the drip of oil from the catch tube assembly down into the intermittent. Was the machine serviced in any way recently? Any film breaks or wrap-ups lately? Is the noise present with film, or without film as well? The projector still feels smooth turning over by hand. When the intermittent sprocket is in the locked position, is there any play in the sprocket? There should be virtually no play in the direction of rotation, or laterally -- side-to-side. The description of the noise (thanks to Randy's help) made me first think of the intermittent flywheel being loose. There are two screws that hold it on. If they are loose, you can't just tighten them. The position of the flywheel on the shaft positions the cam properly. Excessive play laterally on the camshaft will cause all kinds of ugly noise. If the screws are tight, there should be virtually no play. Keep us advised and good luck. Feel free to call the factory in Omaha, we can help. Pat
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Paul G. Thompson
The Weenie Man
Posts: 4718
From: Mount Vernon WA USA
Registered: Nov 2000
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posted 03-15-2001 09:58 PM
Mark, if you were talking about the Strand in Manitowoc, what is in there for equipment, I don't know. In 1983, it had Motiograph AA's there. Ah, yes - again the good old days. I remember as a kid, the Strand had the 9-cent Saturdays. All the Gene Autry, Roy Rogers, The Cisco Kid, and Tom Mix you could handle. They even had 4 cartoons! Saturdays was always a big day for us kids in the late 40's and very early early 50's. It was a sell-out every Saturday. It went dark for a long time, then re-opened. What it is doing today, I don't know, but I'll find out. The old Empire theater on 18th and Marshall street is now an electronic supply house, The Mikadow is a little church, and the Capitol is now a performing Arts Center. (You pushed a green button when you mentioned Manitowoc)  I just found out IT IS STILL RUNNING!
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Don Anderson
Master Film Handler
Posts: 312
From: West Bend, WI, USA
Registered: Mar 2000
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posted 03-15-2001 10:27 PM
You guys are unbelievable! Manitowoc, oh my gosh. No, I don't think the Strand has the Motiographs anymore. I know that Bob had offered me a pair of them awhile back. I'm assuming that's the ones. I have yet to get them in my possession. I'm not sure what projectors are in use up there, as I have never stopped by the theatre. Its a drive from WB. I've only seen pictures of the outside. Mark - Bob and John don't surf the net, at least they never talk about it. But I did touch base with John last week and mentioned the Backdoor at the Capitol. Had him laughing, and coughing at the same time. He said to say hi to ya Mark. I took the intermittent movement out tonight. It is damaged, well a gear is totally worn inside it. One of my old school buddies showed me what was damaged on it, and gave me a quick lesson on oil changing, greasing the motor, etc. No, don't get the idea the that there was no oil. It was oiled. The small gear was just worn out, he called it something, but the type of gear slips my mind at the moment. He worked there back in the mid 90s, and did maintenence and all. In fact, he replaced the same movement in our upstairs booth. Part arrives tomorrow. Wanna guess what I'll do doing on Friday???? Thanks everyone for your help. I'll buy ya a beer if you're ever in the area. We only had to turn away 4 people who wanted to see Crouching Tiger tonight. The movie has pretty well run its course.
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