UTR-20 Assembly Instructions

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Step 9: Panel installation:
Diagram 9
• Remove the ¼” Stainless steel module mounting hardware bag from the main hardware bag and fasten one
side of the center solar panel, or if there are two panels then choose which to fasten first, to the top rail as
shown in Diagram 9. When choosing the solar panel mounting holes, choose the holes that are 32” or less,
center to center. There should also be at least 2” between the edge of the solar panels and the canisters
to prevent inadvertent shading.
• Loosen the 5/16”x 3” bolts on the top rail U-brackets and slide the canisters and bottom rail away from the
top rail until the J-clips on the bottom rail align with the second set of mounting holes on the solar panel.
This should be done by grasping each canister by the south end and pulling south.
• Re-tighten the 5/16” x 3” bolts on the top rail U-brackets and finish fastening the solar panel to the bottom
rail. You may also fasten the remaining panels to both of the mounting rails.
• You can now fully tighten all of the U-bracket bolts.
• After all bolts have been tightened and all solar panels installed, loosen the shaft collar and slide down the
axle so that it just rests on the bottom rail bearing and tighten.
• One word of warning, the solar panels MUST be equally spaced from the center-line of the tracker in order
to track the sun correctly.