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Redding, CA 96003
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Setup a SECO Precise GPS Antenna Tripod

Tech Tip Number: 13
Created: January 1, 2001

1. Carry the tripod by the carrying handle to the point you want to set up over.

2. Hold handle in the left hand and with the right hand pop open the center pole Surloc and extend the center pole to its stop and then lock Surloc. If this is difficult to do standing, lay the tripod on the ground. The objective is to extend the center pole with minimal stress. For proper calibration the arrow must line up with the split in the Surloc also, if desired, install lock pin in its hole to guarantee no slipping

3. Now with center pole extended and locked, held horizontal and balanced slowly raise the tripod horizontally until you can turn it vertical and set the point down, with control, on the ground point. Now it is balanced and easy to work with. The objective is not to bend, or hit the center pole in any fashion. The straightness of the center pole is critical for accuracy.

4. Extend one leg at a time, starting with the Surloc unlock and fully extend then lock. Then use the quick release . Walking around the tripod extend each leg and spread as necessary. On the third leg do not lock the lock knob until final leveling is complete. The Surlocs are always fully extended and locked.

5. To level, stand between the two quick release legs, hold the quick release handles, squeeze and move the legs, watching the circular vial until it is centered or close to centered.

6. Final leveling can be achieved by moving, one at a time, the quick release legs. This gives the user more fine movement control. This is done by holding the quick release with one hand and holding the tube that comes out with the other hand. Now looking at the circular vial move the leg up or down until the vial is centered or is in line with the other leg. Go to the other leg and repeat until centered.

7. After centering is complete lock the third leg with the lock knob. You are now level and over the point.

8. Circular vial adjustment can be checked after leveling by simply rotating the center pole 180 degrees. If bubble does not stay within the circle, adjustment is necessary. See adjustment section.

BREAKDOWN INSTRUCTIONS:

1. Any leg first. Collapse the upper section fully and lock.

2. Next unlock the Surloc on the lower section, lift the outer leg up and place in hole in keeper plate, rotate leg until foot cleat is close to the center pole and lock Surloc. This leg should now be held firmly in place.

3. Repeat 1. And 2. with the other two legs.

4. Remember to let the center pole and balance help you manage the weight.

5. Now lift the tripod straight up and carefully turn horizontal. Now you can lay the tripod on the ground and collapse the center pole. Or standing you can collapse the center pole. Again the objective is not to bend the center pole.

ADJUSTMENT OF THE CIRCULAR VIAL:

1. Set up and center bubble as precisely as possible.

2. Rotate center pole 180 degrees. If bubble goes out of the black circle adjustment is necessary.

3. Move quick release legs until bubble is half way between position one and position two.

4. With a 2.5 mm allen wrench turn adjusting screws until bubble is centered. Recommended procedure is to tighten the screw that is most in line with the bubble. Caution: very small movements work best.

5. Repeat until bubble stays within circle.

SurLoc(tm) is a trademark of SECO Manufacturing

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