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FOCUS AND X-Y ADJUSTMENT INSTRUCTIONS
7. Readjust the focus screw to set the desired beam spread.
8. Replace the front cowl reposition the lamp head and resecure the position locking fasteners.
Allow the blowers to operate for at least (15) minutes after extinguishing the arc. This measure is
required by the bulb manufacturer to comply with bulb warranty conditions.
In order to insure maximum bulb life, the following procedures should be followed every 75 - 100 hours
of operation.
If the fixture is used in a position other than pointed within 15% of vertical, the bulb should be rotated
1/3 of a turn to insure even deposition of the vaporized tungsten generated by the arc inside the bulb.
1. Refer to the instructions for removal and installation of the bulb noting all warnings.
2. Follow the disassembly procedure for a fixture with the bulb installed steps 1 thru 5.
3. When rotating the bulb for removal, continue LIGHTLY pressing rearward on the bulb. The threads
of the bulb will ride out of their current leads and drop into the next set of threads in the receiver
block. When this happens, you will feel the bulb drop down into the receiver block.
4. Immediately stop turning the bulb and reverse direction to screw the bulb in at the new
orientation.
5. Complete reinstalling the bulb per the bulb installation procedure.
Check the output power level of the system and readjust as necessary. Output may be increased to
maintain light output as the bulb ages, but output must remain below 10,000 watts (220 A.). SEE POWER
ADJUSTMENT PROCEDURES preceding.
10
(continued)
XENON BULB MAINTENANCE
BULB ROTATION
ADJUSTMENT PROCEDURES
POWER LEVEL ADJUSTMENT
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