Quinton MedTrack CR60 Service Manual page 40

Warning!
4-12 Repair/Replacement and Calibration
3. Disconnect the wire connector on the drive board on the AC Drive
Module.
4. Follow the procedure to remove the grade motor chain (see
"Replacing the Grade Motor Chain" on page 4-13).
5. Remove the four 7/16 in. hex head bolts that attach the grade motor to
the headframe, then remove the motor.
6. Install a new grade motor, following steps 3-4 in reverse. Use a
straight edge to align the motor sprocket with the pinion shaft chain
sprocket.
7. Restore power to the treadmill and test the new grade motor.
High voltage is present when the treadmill is plugged into
a power source. Secure loose hair, clothing, and jewelry
before working near rotating machinery.
Verify that:
a. the treadmill operates over the full range of 0-15% grade.
b. there is no binding when it moves up or down.
c. the chain is aligned correctly. A popping sound in the chain
indicates that it is misaligned.
8. If no other service is required, replace the treadmill hood as described
in step 10, page 4-5.
Grade Motor
Grade Motor Bolts
1/4-20 x 1.25L
Flat Washer
Kep Nut Far Side
MedTrack CR60 Rehabilitation Treadmill Service Manual