Mailinglist Archives:
Infrared
Panorama
Photo-3D
Tech-3D
Sell-3D
MF3D

Notice
This mailinglist archive is frozen since May 2001, i.e. it will stay online but will not be updated.
<-- Date Index --> <-- Thread Index --> [Author Index]

Re: Slow projector fans - Lubrication?


  • From: P3D Bill Davis <bd3d@xxxxxxxxxxxxx>
  • Subject: Re: Slow projector fans - Lubrication?
  • Date: Tue, 17 Jun 1997 21:31:30 -0400

>The motor feels hot after a while

Just a thought: Is the projector the only item plugged in to that circuit?
Is this the same projector that you tested the 750 w bulbs in and couldn't
detect a significant increase in output?  Also the one with the 20-foot
vacuum cleaner cord?  The problem *might* be too much draw for the size of
the supply line.  1000 (or 1500) watts of lamps, plus whatever draw from an
old motor, plus a 20 foot cord....  If I'm not mistaken, this could
exacerbate an existing motor problem.

Or am I just advertising my ignorance to the list again? 

You mentioned a three-position switch.  Do you turn the motor on first, let
it come up to speed then turn on the lamps?

One other point to mention regarding oil.  When I rebuilt Bill Ewald's
push-button projector, I put a drop or two of oil in the fan motor.  When I
then turned it on, it proceeded to deposit a fine spray of oil all over the
bulbs, condensers, etc.  More hours cleaning...   


Best regards,
Bill Davis
mailto:bd3d@xxxxxxxxxxxxx



------------------------------