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Drive Motor Replacement
5. Recheck pulley alignment and belt tension.
6. When alignment and tension are correct, tighten all four motor mount nuts using a
socket torque wrench set at 75 inch-pounds.
7. Lock the motor adjustment screw by tightening the locking nut against the frame.
8. Loosen the set screw at the motor pulley, then recheck alignment.
9. Slide the pulley on the shaft until alignment is restored.
10. Check to see that the pulley locking key still extends about 1/16-inch past the inner
face of the pulley. Tighten the set screw over the keyway first, then tighten the other
set screw. Use a 1/8-inch Allen torque wrench set for 50 inch-pounds.
11. Recheck both tension and alignment. Check alignment while rotating the belt and
pulleys. Use a thickness gauge to measure any gap. If the gap between the outer
face of the pulley at its edge, and the straightedge, exceeds 0.007 inches, repeat
alignment procedures until that gap is reduced to less than 0.007 inches.
Reconnect Motor Wiring
1. Connect the gray sensor cable to the connector marked J3 on the left end of the
circuit board.
2. Press together connectors for the red wires, and then for the black wires.
3. Using a Philips-head screwdriver, secure the lug on the green wire to the ground
point on the frame, using the screw removed previously.
4. Using small wire ties, neatly tie together the four wires.
Replace Shroud
1. Release the shroud from the bungee cord that has held it to the handrail
gooseneck, and carefully slide the shroud downwards so that it rests on the
treadmill frame.
2. Match the screw hole in the lower front edge of the shroud with the mating hole in
the frame, then insert and star the Philips-head screw previously removed.
3. Press down on the side and front of the shroud to engage the Velcro strips on the
frame.
Tighten the screw to complete shroud-replacement .
5.5