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Drive Motor Replacement
3. Using a 1/8-inch Allen wrench, loosen the two set screws in the motor pulley.
4. Slide the motor towards the rear of the treadmill l to give slack to the motor drive belt.
5. Slip the drive belt off the motor pulley, then remove the pulley and the locking key.
6. Remove the four motor mount nuts, then lift the motor out of the treadmill and set I
aside. Mark it as the removed motor to avoid confusion with the replacement motor.
This completes motor removal procedures.
Install Replacement Motor
1. Set motor mount onto the four captive screws in the frame.
2. Fit the motor pulley over the motor shaft so that thither of the set screws is aligned
with the shaft’s keyway
3. Using a plastic hammer and a punch, tap the locking key into the keyway so that it’s
end protrudes about 1/16-inch past the inner face of the pulley.
4. Tighten the set screws that is over the keyway to hold the pulley in place, but do not
torque tightly at this time.
5. Place a 5/16-inch flat washer onto each mountain screw, then loosely turn a 5/16-
inch lock nut onto each screw.
6. Place the drive belt over the motor pulley, aligned with pulley surfaces.
7. Using a hand on each end of the motor, press motor towards the front of the
treadmill to tighten the belt.
8. Slightly tighten the four mounting nuts, just tight enough to hold the motor in place.
9. Check motor alignment relative to the running belt pulley. Hold the edge of a steel
straightedge against the outer face of the running belt pulley. The straightedge
should be flush against the outer face of the motor pulley. See Diagram B.
10. If the straightedge is not flush against the motor pulley, loosen motor-mount nuts,
adjust motor position so that it becomes flush, and then slightly retighten mounting
nuts.
5.3