KevinE Posted March 5, 2008 Share Posted March 5, 2008 We have a number of robe spot 150XT heads and they've become very blurred when projecting gobos. I've dusted the gobo wheels but the problem seems to be a deposit (fog fluid probably from the nightclub) of sticky brown ooze condensed inside the lens assembly. Does anyone know how to remove the lens (it screws out only so far) and then is it possible to dismantle the lens glasses and clean each individual piece? Link to comment Share on other sites More sharing options...
thewhirlwind Posted March 5, 2008 Share Posted March 5, 2008 We have a number of robe spot 150XT heads and they've become very blurred when projecting gobos. I've dusted the gobo wheels but the problem seems to be a deposit (fog fluid probably from the nightclub) of sticky brown ooze condensed inside the lens assembly. Does anyone know how to remove the lens (it screws out only so far) and then is it possible to dismantle the lens glasses and clean each individual piece? I think you can pull it off...the housing is rubbery and you have to prize the bottom off then it comes off. Link to comment Share on other sites More sharing options...
KevinE Posted March 6, 2008 Author Share Posted March 6, 2008 Yes, Ive already prised off the front rubber (the bit you turn to focus it) and the first lens falles out as though its only held in by the rubber...is this how it should be? I've been doing this whilst they're flown so far, in the semi-darkness; can the lens assembly itself be unscrewed from the fixture and taken out completely? It has some sort of rotational stop on it. I dont want to break anything! Kev Link to comment Share on other sites More sharing options...
Jamtastic3 Posted March 7, 2008 Share Posted March 7, 2008 I can't say for the heads you have but with the DJScan 250XT's you can screw off the focus lens and then you have to prize off the bottom lens. However, once you've done this, it breaks ther rubber seal and without enough friction, you might need to add some adhesive around the edge because as you screw the lens back on, it might pop off in the fixture. Link to comment Share on other sites More sharing options...
Robertwatson Posted March 9, 2008 Share Posted March 9, 2008 Ive got 150xt's and yes the lens on the front doesnt unscrew so you have to take the glass out and clean that then get a cotton bud for the lens inside. hope this helps Link to comment Share on other sites More sharing options...
Guest joewhite903 Posted March 10, 2008 Share Posted March 10, 2008 Hi there just had a look at the service manual and there is nothing in any off the diagrams about a stop, I know that with the the 250xt's its unscrews then gets very tight but can still be done and it the whole lens assembly should pop out watch for the mirror though. Joe Link to comment Share on other sites More sharing options...
KevinE Posted March 10, 2008 Author Share Posted March 10, 2008 No these are Moving Heads! I'm not about to force the units (I've got to do it in front of the customer) unless I have it on good authority to do so! And I dont want to pull everything apart in the semi-darkness and end up dropping the lens glass tinkle-tinkle down the ladders and onto the floor way, way below! I think I'll ring Robe and pester the poor engineer in the workshop. Link to comment Share on other sites More sharing options...
Guest joewhite903 Posted March 11, 2008 Share Posted March 11, 2008 Sorry my mistake ;) Link to comment Share on other sites More sharing options...
KevinE Posted March 17, 2008 Author Share Posted March 17, 2008 Just an update to this, I've chatted to the Robe service engineer who says the lens retaining frame has to be removed. The two halves of the head casing are removed, four screws are undone around the lens and the whole thing can be lifted out to be serviced at leisure in the workshop. The screws have nutlock compound on them and have to be loosened carefully to avoid chewing of the heads or shafts. In case anybody else wants to do it!! I should add that Robe have been very forthcoming with info and eager to help. Bear this in mind when making informed choices for any new purchase!!! Link to comment Share on other sites More sharing options...
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