UTR-20 Assembly Instructions

17
Step 11: Balancing the Tracker:
• The Tracker MUST be balanced above its pivot axis.
• Adjust the tracker to the seasonal adjustment required for your area and season.
• Carefully watch the tracker during its normal operation. At the end of its rotation the tracker should just
come to rest on the bumper bolt.
• With the counterweights at their lowest location on the counterweight bar, the tracker may not rotate in its
full arc throughout the day.
• If the tracker stops short of the bumper bolt, move the counterweights up the counterweight bar an inch or
two until the tracker just rests on the bumper bolt.
• If the weights are moved too far up the counterweight bar, the tracker may become top heavy and will not
track correctly. A top-heavy tracker will constantly hunt for and overshoot the sun.
Step 12: Seasonal Adjustment:
• In such installations where the tracker is in a remote location then the tracker should be set at your latitude
year round. To do this, adjust tracker to face the sun at mid-day on or around the 20
th
of March.
• If the tracker is installed in a location that would allow multiple seasonal adjustments then follow the steps
below.
° In March position the tracker 15 degrees above your latitude and leave at this setting until September.
° In September reposition the tracker to 15 degrees below your latitude and leave at this setting until
March.
• See Diagram 12 for seasonal adjustment positions.
5°
20° 30°
45°
Diagram 12
• GO BACK AND MAKE SURE ALL BOLTS AND SCREWS ARE TIGHTENED.
• ZOMEWORKS ALSO RECOMMENDS GREASING THE ENTIRE BARE-METAL PORTION OF
THE AXLE WITH A HEAVY DUTY GREASE TO PREVENT THE ONSET OF CORROSION.