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Author Topic: ? on Pro Ball. 35 framing knob problem Cory Johnson Film Handler Posts: 46 From: La Crosse, WI USA Registered: Aug 1999 posted 12-06-1999 11:04 AM                     We have all Pro Ball. 35 projectors (don't yell at me, they are not my decision). On one of the projectors, the framing knob has "loosened" up and you can feel the vibration from the projector unless the knob is positioned just right. It will not creep the focus out (yet) by itself, but the knob will vibrate noticiably. Is there something on the Pro 35 that you can adjust to tighten the framing? I am guessing this is just a premature sign that the intermit. is going out (if I remember right, the framing rod is connected directly to the intermit. on the 35). I just wanted some input as it is the projector for the largest house and I really don't want it breaking down in the next month or so. Thanks. Cory (I really hate Pro35s. They are loud, break constantly and leak oil like crazy...) thxdude@hotmail.com  |  IP: Logged Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 12-06-1999 12:02 PM                     There is large set screw with a locking nut on the back wall under the shutter that puts pressure on the shaft to stop creeping It sound like the coupler is ready to be replaced We have lots of Pro35's up here and usually they give very little grief  |  IP: Logged Chris Erwin Expert Film Handler Posts: 195 From: Olive Hill,KY Registered: Oct 1999 posted 12-06-1999 11:34 PM                     I agree it sounds like the coupler. I have heard from techs that this is made of nylon and wears after little use. Have a trusted tech to come up with a remedy on that coupler. --Chris  |  IP: Logged Rick Long Jedi Master Film Handler Posts: 759 From: Toronto, Ontario, Canada Registered: Nov 1999 posted 12-07-1999 12:06 AM                     Gord's right. OK, you're gonna need a 3/4" wrench and a right-angled slot screwdriver. Looking into the projector from the non-threading side, find the large nut on the rear between the shutter and the mechanism. With the projector NOT running (trust me on this one), loosen (counter-clockwise) the nut. In the hole in this nut, you will find a slot of a large screw. Tighten the screw clock-wise about 1/4 turn, then re-tighten the big nut. With the projector not running, the framer should feel rather stiff; if not repeat the proceedure 'till it does.  |  IP: Logged

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