Sears treadmill How to lubricate the running belt – How to adjust the bet tension

Sears treadmill - Sears Canada  - 30750 - 30727 -  How to lubricate the running belt – How to adjust the bet tension – How to check the motor function -  How to access engineering mode

Sears Canada  - 30750 - 30727

Treadmill Lubrication 30727 Only
EVERY 6 MONTHS OR 150 MILES
It is necessary to lubricate your treadmill running deck every six months or 150 miles to maintain optimal performance of your treadmill. Once the treadmill reaches 150 miles, the console will prompt you to lubricate the treadmill.
# Turn off the treadmill with the on/off switch, then unplug the power cord at the wall outlet.
# Loosen both the rear roller bolts. (For best results, place two removable marks on both sides of the frame and note roller position). Once the belt is loosened, take the bottle of lubricant and apply it to the entire top surface of the running deck. Tighten both rear roller bolts (matching up the marks for proper position) to original position. After you have applied lubricant, plug in the power cord, insert the safety
key, start the treadmill and walk on the belt for two minutes to spread the lubricant.
# Lubricate the air shocks with Teflon based spray.
# Once lubrication is complete, reset the console by pressing and holding ‘STOP’ and Speed (s) buttons for 5 seconds.

Tensioning and Aligning the Running Belt

If you can feel a slipping sensation when running on the treadmill, the running belt must be tightened. In most cases, the belt has stretched from use, causing the belt to slip. This is a normal and common adjustment. Make sure that the unit is turned off and not running. To eliminate this slipping, tension both the rear roller bolts with the appropriate sized Allen wrench, turning both the left and right bolt 1/4 TURN as shown below. Try the treadmill again to check for slipping. Repeat if necessary, but NEVER TURN the roller bolts more than 1/4 turn at a time.

1. If the running belt moves rapidly to one side when performing the next step, press the Stop button immediately.

3 Turn on the treadmill. With the treadmill speed between 3-4mph, stand behind the treadmill and watch the movement of the running belt. 

DO NOT STAND ON THE TREADMILL AND DO NOT TOUCH THE TREADMILL WHILE PERFORMING THIS PROCEDURE. 

As you watch the running belt, make sure that the belt runs without moving from one side to the other and that the belt is centered between the side rails.
2.If the running belt is not tracking properly, follow the procedures below:
# If the running belt tracks to the left, turn the left roller bolt clockwise 1/4 of a turn, keeping the belt tension in mind. Over-tightening the running belt may cause damage to the running belt and roller bearings.
# If the running belt tracks to the right, turn the right roller bolt clockwise 1/4 of a turn, keeping the belt tension in mind. Over-tightening the running belt may cause damage to the running belt and roller bearings.

Treadmill Diagnostic Process

Proper supplying power to treadmill
# Make sure the treadmill is not on an extension cord, surge protector or GFCI circuit. Extension cords and surge protectors create energy loss, which prevents proper voltage from being supplied to the treadmill.
# Make sure the treadmill is on a dedicated circuit. Horizon Fitness recommends a 20 amp dedicated circuit, but a 15 amp dedicated circuit may be sufficient.
# Make sure that proper voltage is being supplied from the wall outlet.

# Disconnect the treadmill power cord from the wall outlet. Using an AC voltmeter, verify that the proper AC voltage is present at the wall outlet. Nominal 120 volts AC may vary between approximately 105 volts AC and 135 volts AC. If the AC voltage is missing or incorrect, check the AC service or consult an electrician.

Proper Wiring
# Verify that all wires are secure and attached in the correct position.
# Verify that there aren’t any pinches or cuts in any of the wires, especially the console cable connecting from the motor control board to the upper board. Replace any wires that are pinched or cut.

Proper Motor Function
# Verify that the treadmill is properly lubricated and drive motor is operating at the proper amperage rating. To verify the current draw, place a clamp meter around the red motor wire.

Remove the brush covers on the drive motor and inspect the brushes and the motor commutator for any uneven wear. If the surface of the motor brush is pitted, rough, has burn marks, or the commutator has a black residue on it, replace the motor.

Proper Speed Calibration
# To ensure proper belt speed and proper calibration use engineering mode to verify that machine is running in MPH not KM.
# Auto-calibrate the machine from engineering mode if the belt speed is erratic or the belt speed does not correspond to what is displayed on the console.
Resetting the Incline Motor after replacing the Motor Control Board
Tools Required:
# Phillips Screwdriver
# 17mm Socket
# 17mm Combination Wrench
Procedure:
1. Turn off power to the treadmill and unplug power cord from wall outlet.
2. Replace the Motor Control Board.
3. Fold treadmill into locked position.
4. Undo bolt that attaches the elevation tube to the bottom of the machine (F1).

5. Power up the machine and let the incline spin freely in the tube until it reaches its “zero” position, and then turn power off.

6. Spin shaft manually until it is almost flush with the incline motor casing and only about 1 thread is visible (F2).
7. Reinsert bolt and power up the machine.
8. Test the incline function and calibrate the unit.

Engineering Mode

1. Turn the treadmill power to ON.
2. Place the safety key in position on the console.
3. Simultaneously press and hold (for about three seconds) the incline “+”  and speed “-” buttons.
4. The console should beep three times and ENG0 (EN90) should be displayed in the time window, “ENGINEERING MENU” scrolls in matrix or is static in the text box.