SkyTracker STX-1-2000 - Page 25

BULB INSTALLATION STEPS
1. Place the lamphead in the upright vertical position.
2. Remove the housing and set aside.
3. Remove the two 1/4-20 bolts that secure the power jumper cables to
the upper bulb adapter (Figure 9, Item 8). Remove the central bolt.,
washer, and spring assembly that secures the front bulb adapter to the
anode support “spider” (Figure 9, Item 7).
 4. Inspectreectorforcleanliness;cleanifnecessary.
5. Carefully remove xenon bulb from shipping container and remove
protective cover. (Save the container and packing for future shipping
purposes.) Use caution to handle the bulb only from the metal end
xtures,notallowingngercontactwiththequartzenvelope.Finger
oils or other foreign material on the quartz envelope can lead to rapid,
premature failure. If accidentally touched and contaminated, carefully
clean the quartz envelope with tissue moistened with alcohol and then
wipe dry with a clean, dry, lint-free tissue.
6. Inspect the upper bulb adapter and end pins of the lamp to make sure
that these contact areas are clean and free of corrosion, oxidation or
any contaminant which could cause a high resistance electrical joint.
Make sure that the clamp screws on the upper bulb adapter are loos-
ened and that the upper bulb adapter will slide freely over the front
anode (+) end of the bulb.
7. After sliding the top bulb adapter onto the anode (+) end of the bulb,
carefully turn the two components upside down and hold the adapter
with the bulb vertically. Then tighten the clamp screws. This will insure
that no bending force is applied to the quartz bulb vessel, which could
cause an accidental and dangerous bursting if stressed. Tighten the
screws carefully, a little at a time, alternating back and forth between
each clamp screw until they are completely tight, alternating back
and forth between each clamp screw until they are completely tight
and no further screw rotation is possible using moderate force. Care-
fully check to be sure that the bulb end is not loose within the top bulb
adapter clamp.
8. Hold the bulb and upper bulb adapter subassembly carefully by the
adapter (continue using caution not to touch or contaminate the quartz
lamp envelope). Lower the lamp carefully through the hole in the cen-
terofthereector,usingcautionnottonickordamagethereectoror
bump any portion of the bulb. Carefully insert the cathode end of the
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