Sears C249 30533 0 Service Manual
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WARNING:
ALWAYS UNPLUG THE TREADMILL FROM THE ELECTRICAL
OUTLET BEFORE SERVICING THE UNIT.
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TABLE OF CONTENTS
Table of Contents....................................................................1
Table of Figures......................................................................3
Description .............................................................................4
A ELECTRICAL CONFIGURATION......................................4
1. C249 30684 0 Treadmill componen ts..........................4
B GENERAL INFORMATION ...............................................5
1. Console.......................................................................5
2. Main controller............................................................5
3. Treadmill motor ..........................................................5
4. incline motor...............................................................5
Operation................................................................................7
A WINDOW DISPLAY MODE..............................................7
1. OFF Mode...................................................................7
2. READY Mode.............................................................7
3. SLEEP Mode ..............................................................7
4. RUN Mode..................................................................7
B FUNCTION......................................................................8
1. SPEED........................................................................8
2. TIME..........................................................................8
3. DISTANCE.................................................................8
4. CALORIES.................................................................9
5. INCLINE ....................................................................9
6. PULSE........................................................................9
C FUNCTION BUTTON IN MAIN MODE ............................10
1. READY MODE........................................................10
2. SLEEP MODE........................ !
3. RUN MODE.............................................................10
D SPEED INCLINE CALIBRATION.....................................12
1. SPEED AND INCLINE Calibrat ion PROCEDURE ..12
2. SURVEY Calib ration.............. !
Troubl eshootin g....................................................................13
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1. General .....................................................................13
2. Troubleshooting Matrix.............................................14
3. controller debugging form......................................... 22
Diagrams and Schematics.....................................................23
APPENDIX A...................................................................... 27
1. TREADBELT ADJUSTMENT................................. 27
APPENDIX B ......................................................................29
1. TREADMILL LUBRICATION................................ 29
APPENDIX C ......................................................................30
1. RESET SWITCH RESETTING................................ 30
APPENDIX D...................................................................... 31
1. FUSE REPLACEMENT........................................... 31
APPENDIX E.......................................................................32
1. SPEED SENSOR ADJUSTM ENT............................ 32
2. SERVICE QUESTIONS........................................... 32
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TABLE OF FIGURES
Figure 1 Operational Flowchart..............................................6
Figure 2 Console Layout......................................................23
Figure 3 Mech anical Layout.................................................23
Figure 4 Main Controller information & vo ltages .. .. .. .. ...... ...24
Figure 5 Funct ion JK1 connector on Main Controller...... .. .. .24
Figure 6 Wiring Diagram.....................................................25
Figure 7 Schematic Diagram................................................26
Figure 8 If Treadbel t slips....................................................27
Figure 9 If tread belt shif ts too far to the Right.....................27
Figure 10 If tread belt shif ts too far to the Left.....................28
Figure 11 Res etting Reset switch .........................................30
Figure 12 Fus e repl acement .................................................31
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DESCRIPTION
A ELECTRICAL CONFIGURATION
Note: Electrical servicing of this treadmill is limited to board
level replacement.
1. C249 30533 0 TREADMILL COMPONENTS
a) Safety key:
Magnetic key that fits in the Console to activate all
functions.
b) Console:
Interface that controls all functions of the treadmill.
c) Main controller:
A circuit board that incorporates the DC power supply and
takes input from the console and sends out appropriate
voltages that control the treadmill functions.
d) Treadmill motor:
A variable speed, reversing 0 - 110 volt D.C. motor that
powers the main running belt.
e) Incline motor:
An AC reversing motor that seta the incline of the treadmill.
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B GENERAL INFORMATION
1. CONSOLE
a) Contains touch controls and LCD Display.
2. MAIN CONTROLLER
a) Contains power supply and control circuits.
3. TREADMILL MOTOR
a) Variable speed reversing 0-110 volt DC motor.
b) Has three wires red, black and green.
c) If there is DC voltage on the Red wire (M+) the treadmill
motor will turn clockwise.
d) If there is DC voltage on the Black wire (M-) the treadmill
motor will turn counter-clockwise.
e) The higher the voltage the faster the motor turns.
f) The green wire is ground.
4. INCLINE MOTOR
a) Reversing 110 V AC motor.
b) Have four wires, red, black, white and green.
c) Has three 3PIN cables of position sensor.
d) If there is AC voltage on the Red wire (UP) the incline motor
will increase the incline.
e) If there is AC voltage on the Black wire (DOWN) the incline
motor will decrease the incline.
f) The white wire (COM) is neutral.
g) The green wire is ground.
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Figure 1 Operational Flowchart
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OPERATION
A WINDOW DISPLAY MODE
1. OFF MODE
a) When user doesn’t insert the SAFETY KEY on the console, the
treadmill enters the OFF Mode and the dot matrix will display”
please install safety key to start ”
2. READY MODE
a) When the treadmill is on and the safety key is inserted in
console, the dot matrix will display ” SELECT PROGRAM ”
b) TIME, DISTANCE and CALORIES Valu es will all be sa ved
when RUN Mode enters READY Mode.
c) In READY Mode, if user doesn’t press any button for 5
minutes it will then enter SLEEP Mode.
d) Press START button to start treadmill on manual mode.
3. SLEEP MODE
a) In SLEEP Mode, when any button is pressed then the treadmill
enters READY Mode.
4. RUN MODE
a) In RUN Mode, pressing the “STOP” button and removing the
SAFETY KEY will cause the treadmill stop instantly and enter
OFF Mode.
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B FUNCTION
1. SPEED
a) SPEED and DISTANCE value displa y in sa me window and
pressing “MODE” button will toggle between them.
b) DISPLAY range is 0.0 to 99.9 KPH/MPH.
c) WOR K range is 1.0 to 10 MPH.
d) Press “FAST” or ”SLOW” to adjust speed, each increment and
decrement is 0.1MPH/KPM.
2. TIME
a) TIME is either CO UNT UP or CO UNT DOW N. System preset
is COUNT UP; if user sets the time then timer is COUNT
DOWN.
b) DISPLAY range is 0:00 to 99:59.
c) WORK range is 0:00 to 99:59.
d) COUNT DOWN setup range is 10:00 to 99:00.
e) When TIME is set, the count will go to zero.
f) In RUN Mode, press “STOP” button to save value of time and
enter “RUN Mode” again that value will continue count up
time.
3. DISTANCE
a) DISTANCE is either COUNT UP or COUNT DOWN. System
preset is COUNT UP; if us er sets the time then timer is
COUNT DOWN.
b) DISPLAY range is 0.00 to 99.99.
c) WORK range is 0.00 to 99.99.
d) COUNT DOWN setup range is 0.10 to 99.90.
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e) In RU N Mode, press the “STOP” button the DISTANCE value
will still display and save all data. If RUN Mode is entered, the
distance will count up again.
4. CALORIES
a) CALORIES divides into COUNT UP and COUNT DOWN.
System preset is COUNT UP; if user sets the time then timer is
COUNT DOWN.
b) DISPLAY range is 0.0 to 999.9.
c) WORK range is 0.0 to 999.9.
d) COUNT DOWN setup range is 1.0 to 999.0.
e) In RUN Mode, press the “STOP” button to sa ve value of
distance and entering “RUN Mode” again that value will
continue count up time.
5. INCLINE
a) Press ”UP” or ”DOWN” to adjus t incline, each increment and
decrement is 1.
b) DISPLAY range is 0 to 999.
c) WORK range is 0 to 10.
d) INCLINE preset value is 0 to 10.
6. PULSE
a) Display the heart beat by usi ng hand pulse or receiver, if use
receiver. Then a chest belt must be worn.
b) DISPLAY range is 0 to 999.
c) WORK range is 40 to 220.
d) If the treadmill doesn’t have a signal for 8 seconds then value
will become “P”.
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