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3.3
AZIMUTH TRACKER UNPACKING AND SETUP
Refer to Figure 3.3.
1.
Open the Azimuth Tracker box, remove the Tracker, and inspect it for damage.
2.
Mount the Tracker onto the Tripod and secure it with the bolts provided.
3.
Remove the front and rear covers from the Tracker, and note the spare fuses and mounting
bolts taped to the inside wall of the Tracker.
4.
Locate the Safety Switch, which can be found inside the Tracker housing, mounted on the
diagonal support bar.
The purpose of the Safety Switch is to prevent damage to the Power and Communications
Cables by removing power from the drive motor in the event that the Tracker attempts to
rotate too far.
This Switch is activated by a steel cable and a nylon cord which tighten as the Tracker
rotates.
5.
Check the Safety Switch as follows, taking care not to break the nylon cord:
Rotate the Tracker slowly until the black blocking mechanism mounted to the large circular
disk is positioned within the Sensor, which is mounted beneath the Safety Switch, This is
the "reference" position of the Tracker.
Ensure that the Tracker will rotate a full 360° in a CCW direction, and 90° in a CW direction
from this reference position without activating the Safety Switch or breaking the nylon string.
Leave the Tracker such that the blocker is a few degrees CCW from the sensor.
6.
Connect the AC Power Cable to the 120V / 230V connector on the underside of the Tracker (
the green Power Indicator will remain off) - if it comes on, push the Power Switch to turn the
power indicator lamp off.
7.
Rotate the Tracker a few degrees and note that it is relatively easy to turn when power is off.
8.
Press the Tracker Power Switch to turn power ON, and observe that the green Power
Indicator Illuminates.
9.
Attempt to rotate the Tracker again, and note that it is much more difficult to turn with holding
torque on the motor.
10. Activate the Safety Switch manually by pushing the toggle to the right (BE CAREFUL, AS
THERE IS 120V OR 230V INSIDE THE TRACKER HOUSING), and note that the Power
Indicator remains illuminated, but now the Tracker turns easily again.
11. Deactivate the Safety Switch, and turn the Tracker Power Switch OFF.
3.4
MOUNTING THE BREWER
Refer to Figure 3.3.
1.
Place the Brewer on top of the Tracker. The Brewer Power Switch should be directly above
the Tracker Power Switch, and the three bolts protruding from the top of the Tracker mate to
the three tapered holes in the bottom of the Brewer - these three bolts form a kinematic
mount for the Brewer Optical Assembly.
2.
Secure the Brewer to the four Tracker mounting fixings with the bolts provided in the Basic
Spares Kit - there are spare bolts taped to the inside wall of the Tracker.
3.
When securing the Brewer to the Tracker, start the bolts by hand to ensure that no cross-
threading occurs before using the Allen Wrench included in the Basic Spares Kit to do the
MKIII OPERATOR'S MANUAL
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