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REMOVE THE REAR COVER PLATE by pulling on the center section of the three
retaining pins to release the plate. This will provide an opening to grasp when removing the lamp
housing. Tighten securely the vertical tilt locking lever on the yoke. Remove the six screws attaching
the housing to the base and loosen the one at top and front of the house. Slide the housing back and off
the base for easy access to the bulb support.
ASSEMBLE THE BULB before installing it in the lamphouse. Keep fingers off quartz
envelope. Remove the two knurled nuts from both ends of the bulb. Screw the front bulb extension
(Part No. 41116) on the end of the bulb which has the evacuation or seal tip. This will place the seal
away from the reflector and towards the front of the lamphouse. The best light is obtained with the
envelope seal tip to the front of the lamphouse. Place the terminal on the end of the front bulb lead (with
the banana plug) against the end of the bulb extension #41116. Use one of the knurled nuts to secure the
lead to the extension. Make sure the connections are tight, being careful not to put any strain or finger
prints on the bulb envelope. The other knurled nut is not required; keep it for future use if needed.
PLACE THE END of the bulb without the lead through the center hole in the reflector,
into the rear support collet. Loosen the small allen head screw in the collet so the metal end cap of the
bulb can be fully inserted into the collet. Tighten the set screw firmly against the bulb's end cap to ensure
a good electrical contact.
THE OTHER END of the bulb (with the extension and lead) must be positioned so it will
seat at the bottom and center of the "Y" in the front support yoke. Insert the banana plug into the
receptacle on the air duct.
SLIDE THE HOUSING back onto the base; note the sides of the housing should be
inserted into the slots on the base. Do not replace the rear cover plate until the bulb alignment procedure
(following) has been completed. Slide the cover under the top screw and replace the six screws along
the bottom of the housing.
PLUG THE AC LEAD CORD from the power supply into any grounded three-wire, 15
ampere, 120 volt outlet. Set the circuit breaker on the rear of the power supply case to the "ON" or
"RESET" position. Press the green "ON" switch at either the power supply or at the lamphouse and the
bulb will ignite.
ALLOW THE BULB to heat up for two or three minutes to reach full brightness, then
proceed with the following instructions for alignment of the bulb with the reflector.
BULB INSTALLATION AND OPERATION
575/005
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