SkyTracker STX-1-2000, Instruction Manual

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bulb into the lower bulb receiver. Rotate the bulb so that all three leads
of the threaded bulb ferrule start. Tighten until the spring pins of the
receiver engage the bulb. Apply one-quarter turn to the bulb. Do not
overtighten the bulb. Insert the upper bulb adapter pivot bolt/washer/
spring assembly into the center of the “spider” and engage the bolt a
few turns into the upper bulb adapter.
NOTE: If space appears inadequate to accomplish this joining of the
spherical pivot points, more space can be provided by adjusting the
Z focus screw in a clockwise direction, which moves the spider away
from the reflector.
9. The top adapter may have to be carefully rotated, so that the two
tapped holes on the adapter are symmetrically located with respect
to the two spider legs, which are located at a right angle (90 degrees
apart). Loosen the two clamp screw if required. This is necessary so
that the front power jumper cables can be properly attached. When
this positioning has been achieved, the upper bulb adapter attachment
bolt/spring assembly may be tightened.
The shoulder bolt should be
tightened until it bottoms. The clamp screws should be tightened if
necessary.
10. The front power jumper cables, which conduct power from the spider
to the upper bulb adapter, can now be attached. Make sure that the
cables are properly positioned within the shadow area of the upper
bulb adapter, so that they do not protrude into the light beam (which
will cause some loss of light and overheating of the cables). Make
sure all connections are tight.
11. Carefully replace the fiberglass lamphead cover assembly. Make cer
-
tain that the adjustment holes in the housing align to the frame. Make
sure that the window is clean, both inside and out.
The lamphouse is now ready for operation, pending final focusing and adjustment during
nighttime conditions.
8.1 FINAL FOCUS AND BEAM ALIGNMENT
Final focusing and beam alignment can only be properly accomplished outdoors during
nighttime operation.
After each lamphead has been placed into operation and allowed to warm up for
approximately five minutes, the beams can be adjusted and aligned as outlined in
the following section.
BULB INSTALLATION STEPS (continued)
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