Technical questions about your Treadmill
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By Stan Saryhin
#218 IR Calibration
NOTE: This procedure is required after replacing the lower control board or the drive motor.

Tools Required
• Phillips head screwdriver
• Plastic (or non-conductive), flat head screwdriver

1. Please read instructions' thoroughly before performing this procedure.

2. Remove the motor cover.
A. Using a Phillips head screwdriver, loosen three screws on each motor cover side (left and right). See Figure 2.
B. Lift the motor cover center up and off the treadmill. The screws will stay in place. See Figure 2.

3. Perform the IR compensation procedure.
A. Enter Test Mode by pressing and holding down any key on the display while turning the power switch to the on (I) position. When the key is released "PRO" and the software revision "rx.x" are shown on the display.
B. While standing on the ground, press Start and then press the Speed Up key once to set the treadmill speed to 1.0 mph (1.6 kph).
! WARNING: Do not touch components on the lower board. A charge can remain after unplugging the power cord and turning off the treadmill.
! CAUTION: The belt will be jerky during the next step. Hold the handrail to support yourself.
c. Hold on to the handrails as you step on the running belt, begin walking and notice how the belt feels, (the belt may surge, vibrate or slack). NOTE: If the belt doesn't need to be adjusted skip to step 4A.
D. Pull up on the lower board shield. It will snap out. NOTE: Newer versions of the shield will have a hole directly over the IR compensation. If you have the new shield, place the plastic screwdriver through the hole to adjust the IR compensation instead"of
removing the shield.
E. Locate the control called "IR COMP" on the lower board. NOTE: 00 NOT use a metal screwdriver. 00 NOT adjust the other two controls that look identical to the IR COMP control
F. Using a plastic small flat head screwdriver, turn the IR control slightly in one direction as
follows:
• Turn clockwise to remove the slack from the belt
• Turn counter-clockwise to remove the vibration or surging from the belt
G. Retest by walking on the belt and adjusting the IR COMP control until the running belt does not surge, vibrate or feel too slack. NOTE: You should not be able to stop the belt with your feet easily.
H. Press Stop.
I. Place the lower board shield into position (if applicable) and snap it in.

4. Secure the motor cover
A. Lower the motor cover into position. See Figure 1.
B. Using a Phillips head screwdriver, tighten the three sQrews on each side. NOTE: Be sure the screws are catching the center motor cover's holes.

SPEED CALIBRATION
NOTE: This procedure is required after replacing the upper display board, the lower control board"or the drive motor. If you've replaced the lower board, perform the IR Compensation procedure first, then the Speed Calibration procedure.

1. Calibrate the speed.
A. Stay off the running belt during this procedure.
!CAUTION: During this procedure STAY OFF THE RUNNING BELT! Stand with your feet on the two steps.
To enter Test Mode press and hold down any key on the display while turning the power switch to the on (I) position. When all keys are released "PRO" and the software revision" "rx.x" are shown on the display. To exit Test Mode press Stop.
B. In Test Mode press and hold the Quick Start key for three seconds. The display will show "CAL" then "SAV", "CAL". The running belt will accelerate and when completed the display will show "PRO". Press ·Stop to exit Test Mode. NOTE: This procedure should be completed after replacing the upper display board, the lower control board or the drive motor. If you press Stop during this procedure the calibration will not be stored. Exiting Test Mode while the belt is moving may generate an error condition.