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Inspect the pivot bolt area of the Axle-Gimbal junction for wear. Signs of excessive 
movement may indicate that the bolt has worn down. Another indication of wear is that 
the bolt, even when tightened properly, repeatedly comes loose. If this is the case, 
replace the bolt.

PROPER MAINTENANCE IS THE RESPONSIBILITY OF THE CUSTOMER!

HIGH WINDS: 

Trackers should be tied in horizontal position if high-wind events are 

anticipated. The Storm Collar can be used in conjunction with tie-down straps.

EXTREME COLD: 

In cold weather the fluid in the shocks thickens and can increase wake-up 

times. In very cold temperatures (< -10F°), trackers may cease to track. In these conditions 
we recommend tying the tracker in a fixed due-south position at the steepest tilt angle.

F-Series Tracker Troubleshooting

TRACKER SITS LEVEL, LEANS TO ONE SIDE, OR DOES NOT MOVE

1. Manually move tracker through its entire range of motion. Check for any mechanical 

interference, for example: wiring, tree branches, protruding bolts, etc. and correct if 
necessary. 

2. Check Shadow Plates for proper installation. The tracker 

will not

 work without them.

3. Be sure the Track Rack™ is pointing south (in the Northern Hemisphere) and the 

copper transfer tube is mounted on the south (lower) end of the frame, and is not 
crimped in any way.

4. Check for any wiring that may stop the Track Rack™ from turning freely. Also check if 

wiring and junction boxes, etc. are balanced about center axle.

5. A shock absorber might be sticking. On a calm sunny day remove the shocks at the 

Truss Tube. If it tracks without shocks, call Zomeworks. The shock may be defective.

6. The Track Rack™ moves when sunlight warms one canister which then forces liquid 

into the other canister. You may simulate the sunlight's effect by warming the lower 
canister with a hair dryer or carefully with a hand torch (alternately, the upper canister 
can be cooled with wet towels or water spray). Within 10 minutes the tracker should 
begin to rotate toward the cooler canister. If the tracker does not move, and you have 
checked the assembly for free movement, the Canisters may have lost their charge. 
Call Zomeworks tech support.

TRACKER IS SLOW TO WAKE UP

1. Check that your tracker is getting full, early morning sun shining underneath the 

framework. The wake-up fin (under the west-side canister) must see the sun.

2. Check that modules and electrical components are balanced over the center axle.
3. Check that bearings are lubricated and move easily. 

NOTE:

 If the Track Rack™ is 

installed in a corrosive climate, check the axle and bearings frequently for rust / 
corrosion.

4. The shock absorbers may be sticking when collapsed or extended. Remove the shock 

bolt at the Truss Tube and check the shock motion for “stick”. If the tracker wakes-up 

Summary of Contents for Track Rack UTRF-072

Page 1: ...UTRF 072 Track Rack Assembly Instructions 1011A Sawmill Road NW PO Box 25805 Albuquerque NM 87125 USA 505 242 5354 800 279 6342 FAX 505 243 5187 E mail zomework zomeworks com ZOMEWORKS...

Page 2: ...light conditions Choosing A Location Choose a location where the tracker will receive clear unobstructed light throughout the day Keep in mind that the sun rises and sets north of east and west in th...

Page 3: ...f the mounting pole Our recommended hole diameters and depths are based on typical soils For installations in sandy or muddy areas for tall mounting poles or for any situation different than what is d...

Page 4: ...r a MINIMUM of 36 hours before installing Track Rack Rack Assembly Instructions Attaching Gimbal to Pole Place Gimbal on top of pole Orient Gimbal so that 3 4 x 2 bolts are facing true south adjust fo...

Page 5: ...ide of the axle and the lock washer and hex nut on the opposite side When the rack is fully assembled the axle bolt must be tightened to approximately 100 120 ft lbs For the purposes of assembly it is...

Page 6: ...the Axle which will inhibit tracking Slide Truss Tube on to the north end of the Axle until the bearing is snug against the bushing and axle end cap Tighten set screws The Truss Tubes should be space...

Page 7: ...es are flush with the ends of the Truss Tube The correct orientation is with the tabs on the top side and the overhanging section of the tabs facing towards the middle of the rack See drawing Bolts sh...

Page 8: ...ng 3 8 round head square neck bolts The edges of the extrusion are different one side has a slot to accommodate standard 1 4 hex bolts and the other 5 16 hex bolts see diagram at right When installing...

Page 9: ...ware Now that the Extruded Rails have been marked slide the provided module mounting hardware 1 4 or 5 16 x 5 8 hex bolts into the tracks at the approximate mounting locations It is only necessary to...

Page 10: ...route the copper transfer tube along the underside of the module mounting rails Shock Absorber Installation The UTRF 072 comes with 4 Shock Absorbers Note These shocks are very stiff To extend the sh...

Page 11: ...anisters Using the 1 4 round head screws lock washers and wide flat washers provided install as shown Installing Storm Collar The Storm Collar offers additional protection from high wind storm events...

Page 12: ...e rack throughout the year adjust the tilt so that the sun hits the surface of the modules as close to a right angle as possible A good compromise is to adjust the rack to a tilt of latitude 10 or max...

Page 13: ...ped in any way 4 Check for any wiring that may stop the Track Rack from turning freely Also check if wiring and junction boxes etc are balanced about center axle 5 A shock absorber might be sticking O...

Page 14: ...tions 3 Photovoltaic modules should be mounted as shown in the module layout diagram and as described in the instructions Balance is critical 4 There must be a minimum of 2 from the edge of the solar...

Page 15: ...ate replacement part will be required to provide Zomeworks Corporation with a valid credit card number to be charged for the replacement part s Zomeworks Corporation will credit the valid card upon re...

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