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Author Topic: Shaking Vic 5 Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 10-15-2009 02:39 AM                     I usually draw a white line between the shutter and the locking plaque after the first rough adjustment. This helps understanding how much I'm moving the shutter when I loose the screws. If you don't have a reference, when you loose the screws you do not realize that the shutter has moved a bit. And do not tight the belts AFTER setting the shutter, do it before!  |  IP: Logged Dominic Espinosa Phenomenal Film Handler Posts: 1172 From: California, U.S.A. Registered: Jan 2004 posted 10-15-2009 07:10 PM                     Well, after much fanfare our machine is in much better shape. There still seems to be a small bit of latterral instability in the image that I haven't tracked the source of yet but it's SIGNIFICANTLY better than it was. I am concerned because it's unstable still that the intermittent may have been only a symptom and not the true cause. And I am concerned the new one will become bad sooner rather than later in the same way.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 10-15-2009 08:10 PM                     Which version of gate and trap do you have  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 10-16-2009 02:48 AM                     I don't think that there was the possibility to damage the intermittent of a V5 by external factors...  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 10-16-2009 09:58 PM                     An intermitent can be damaged by external factors by objects hitting the sprocket film pile ups  |  IP: Logged Damien Taylor Master Film Handler Posts: 493 From: Perth, Western Australia Registered: Apr 2007 posted 10-16-2009 10:24 PM                     A toothbrush has found its way somewhere it should not be while the projector is running.  |  IP: Logged Marco Giustini Film God Posts: 2713 From: Reading, UK Registered: Nov 2007 posted 10-17-2009 04:55 AM                     Sure, I mean that Dominc is concerned about a hidden cause (belt, runners...) that could damage this new intermittent unit as well. Check that the roller under the intermittent sprocket is not pressing hard against the intermittent sprocket itself. It has a stop on the back and it should be set so as the roller does not touch the print.  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 10-17-2009 12:23 PM                     If there is a eccentric idler it can put a pulsing stress on the movenents bearing on the drive side  |  IP: Logged Dominic Espinosa Phenomenal Film Handler Posts: 1172 From: California, U.S.A. Registered: Jan 2004 posted 01-12-2010 11:16 PM                     Gordon, Haven't been on this machine for a while. Was running digital in this house. All I can tell so far is that it's a straight gate. I'll check later tonight for a part #.  |  IP: Logged Phil Blake Jedi Master Film Handler Posts: 558 From: esperance western australia Registered: Nov 2003 posted 01-16-2010 01:19 AM                        and i have discovered that not all intermittents are made equal... our of my 3 vic 5's one was very noisy ,hammering and unstable image. i removed the assembley and took it apart on the bench ( i can hear the techs groaning) after carefull inspection found the maltese cross to be binding on its shaft , i gently cleaned the shaft with very fine wet and dry paper , reassembled everything , now that machine runs the best out of my 3 it is so quiet now. phil  |  IP: Logged Demetris Thoupis Phenomenal Film Handler Posts: 1240 From: Aradippou, Larnaca, Cyprus Registered: Apr 2001 posted 01-16-2010 02:01 AM                     Oil in the intermittent should be periodicaly changed at 500 hours to reduce the possibility of the oil thickenning and becoming a residue on the maltese cross pin. Unfortunately most ppl thing the projectors are meant to run forever without any maintenance or very little. The way I do it and never had a V5 fail is to do this Change intermittent oil every 500 Hours 1st year in operation rotate Belts and intermittent sprocket so they both rotate the oposite way. Thorough clean of projector. Re-Grease the shutter assembly 2nd year in operation change belts and intermittent sprocket completely. If it is a curved gate change the springs. Re-Grease the shutter assembly. And 3rd year in operation I ususally make a very thorough clean of all parts by completely removing them and putting them back together. It is a time consuming process but its worth it and also redo the procedures for year 1 in operation and make the cycle over again. Demetris  |  IP: Logged Dominic Espinosa Phenomenal Film Handler Posts: 1172 From: California, U.S.A. Registered: Jan 2004 posted 02-05-2010 11:46 PM                     Well, after much ado we did the simple thing: swapped out the gate/trap assembly. It's strange because most of the components in the old assembly had been replaced by another tech in attempt to steady the image. No more shake and much quieter now.  |  IP: Logged Demetris Thoupis Phenomenal Film Handler Posts: 1240 From: Aradippou, Larnaca, Cyprus Registered: Apr 2001 posted 02-06-2010 12:00 AM                     I serviced an extremely shaky V4 the past few weeks. Even though the Intermittent did improve it, it was the gate trap that solved the shaking to 0. Keep that in mind. Demetris  |  IP: Logged Louis Bornwasser Film God Posts: 4441 From: prospect ky usa Registered: Mar 2005 posted 02-06-2010 10:19 AM                        V5 shaking? Don't they all shake? I am only kidding a little bit. I saw V5 intermittents being built at the factory in Milan. The ones that were adjusted were fine. The other 96% caused belt oscillations enough to require constant shutter drive gear replacement. Rebuild or at least adjust all of them. Louis  |  IP: Logged

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