How to Change the Bulb in Sawyer Slide Projectors
Before the advent of digital projection, many businesses used slide projectors for presentations. These projectors accepted slides that held a mounted piece of 35mm film with an image. Although relatively few slides are being created today, many business either work with old images or have libraries of slides from their history. Viewing those slides typically requires projecting them with a slide projector. Just like a modern digital projector, slide projectors use special bulbs that periodically burn out and need replacement.
Rotate your projector's power switch to the "Off" position and unplug it from the wall.
Place your fingertips under the ridge on the top cover of the projector and rotate it upward to expose the projector's internal components. If the projector's power switch is facing you, the ridge will be located on the long side of the projector to the left of the panel facing you.
Put on a soft, lint-free glove and rest your hand near the bulb without touching it to ensure that it is cool. If it is not cool, wait for it to cool. The bulb will be a glass unit that may have its top painted black, gold or blue. Some bulbs will look more like old-fashioned television or radio tubes than traditional incandescent bulbs.
Grasp the bulb and pull it straight up to remove it from the projector. It should come out relatively easily, and you will not need to twist it.
Gently place the new bulb in the area where you just removed the old bulb. If it does not immediately go into its connectors, rotate it until its pins line up with the holes in the socket. Once it is correctly oriented, press down to insert it fully. The bulb will only go in the right way, so use a little bit of pressure, but do not force it.
Replace the cover.
Wearing a lint-free cloth glove while handling the bulb will protect it from oils on your hands.
Most Sawyer projectors for the U.S. market will run cooler with a 400-watt DAT/DAK bulb. DYY/EGH bulbs cost more but last longer and maintain their light output better.
Do not touch the bulb if it is hot; you could seriously injure yourself.