Sears 30427 0 Service Manual
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0
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 ........................................................................ 4
Description................................................................................ 5
A E
LECTRICAL CONFIGURATION ....................................... 5
1. Sears 30427 0 Treadmill components........................... 5
B GENERAL INFORMATION................................................. 6
1. Console ......................................................................... 6
2. Main controller.............................................................. 6
3. Treadmill motor ............................................................ 6
4. Incline motor................................................................. 6
Operation................................................................................... 8
A W
INDOW DISPLAY MODE ............................................... 8
1. OFF Mode..................................................................... 8
2. READY Mode .............................................................. 8
3. SLEEP Mode ................................................................ 8
4. RUN Mode.................................................................... 8
5. FOLDING MODE ........................................................ 8
B F
UNCTION ........................................................................ 9
1. SPEED .......................................................................... 9
2. INCLINE....................................................................... 9
3. TIME............................................................................. 9
4. laps .............................................................................. 10
5. DISTANCE................................................................. 10
6. CALORIES................................................................. 10
7. PULSE ........................................................................ 10
8. AUTO-FOLDING....................................................... 11
C F
UNCTION BUTTON IN MAIN MODE ............................. 12
1. READY MODE .......................................................... 12
2. RUN MODE ............................................................... 13
D C
ALIBRATION PROCEDURE ........................................... 14
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1. Calibration................................................................... 14
2. VERIFYING Calibration ............................................ 15
Troubleshooting ...................................................................... 16
1. General........................................................................ 16
2. Troubleshooting .......................................................... 17
Diagrams and Schematics....................................................... 25
APPENDIX A......................................................................... 29
1. TREADBELT ADJUSTMENT .................................. 29
APPENDIX B ......................................................................... 31
1. TREADMILL LUBRICATION ................................. 31
APPENDIX C ......................................................................... 32
1. RESET SWITCH RESETTING ................................. 32
APPENDIX D......................................................................... 33
1. FUSE REPLACEMENT............................................. 33
APPENDIX E ......................................................................... 34
1. SPEED SENSOR ADJUSTMENT............................. 34
2. SERVICE QUESTIONS............................................. 34
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Table of Contents...................................................................... 1
Table of Figures ........................................................................ 4
Description................................................................................ 5
A E
LECTRICAL CONFIGURATION ....................................... 5
1. Sears 30427 0 Treadmill components........................... 5
B GENERAL INFORMATION................................................. 6
1. Console ......................................................................... 6
2. Main controller.............................................................. 6
3. Treadmill motor ............................................................ 6
4. Incline motor................................................................. 6
Operation................................................................................... 8
A W
INDOW DISPLAY MODE ............................................... 8
1. OFF Mode..................................................................... 8
2. READY Mode .............................................................. 8
3. SLEEP Mode ................................................................ 8
4. RUN Mode.................................................................... 8
5. FOLDING MODE ........................................................ 8
B F
UNCTION ........................................................................ 9
1. SPEED .......................................................................... 9
2. INCLINE....................................................................... 9
3. TIME............................................................................. 9
4. laps .............................................................................. 10
5. DISTANCE................................................................. 10
6. CALORIES................................................................. 10
7. PULSE ........................................................................ 10
8. AUTO-FOLDING....................................................... 11
C F
UNCTION BUTTON IN MAIN MODE ............................. 12
1. READY MODE .......................................................... 12
2. RUN MODE ............................................................... 13
D CALIBRATION PROCEDURE ........................................... 14
1. Calibration................................................................... 14
2. VERIFYING Calibration ............................................ 15
Troubleshooting ...................................................................... 16
1. General........................................................................ 16
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2. Troubleshooting .......................................................... 17
Diagrams and Schematics....................................................... 25
APPENDIX A......................................................................... 29
1. TREADBELT ADJUSTMENT .................................. 29
APPENDIX B ......................................................................... 31
1. TREADMILL LUBRICATION ................................. 31
APPENDIX C ......................................................................... 32
1. RESET SWITCH RESETTING ................................. 32
APPENDIX D......................................................................... 33
1. FUSE REPLACEMENT............................................. 33
APPENDIX E ......................................................................... 34
1. SPEED SENSOR ADJUSTMENT............................. 34
2. SERVICE QUESTIONS............................................. 34
TABLE OF FIGURES
Figure 1 Operational Flowchart............................................... 7
Figure 2 Console Layout........................................................ 25
Figure 3 Mechanical Layout .................................................. 25
Figure 4 Main Controller information & voltages................. 26
Figure 5 Function JK1 connector on Main Controller........... 26
Figure 6 Wiring Diagram....................................................... 27
Figure 7 Schematic Diagram ................................................. 28
Figure 8 If Treadbelt slips...................................................... 29
Figure 9 If tread belt shifts too far to the Right ..................... 29
Figure 10 If tread belt shifts too far to the Left...................... 30
Figure 11 Resetting Reset switch........................................... 32
Figure 12 Fuse replacement................................................... 33
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DESCRIPTION
A ELECTRICAL CONFIGURATION
Note: Electrical servicing of this treadmill is limited to board
level replacement.
1. SEARS 30427 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 - 90 volt D.C. motor that
powers the main running belt.
e) Incline motor:
An AC reversing motor that sets the incline of the treadmill.
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B GENERAL INFORMATION
1. CONSOLE
a) Contains touch controls and 7 segment LED windows
Display
2. MAIN CONTROLLER
a) Contains power supply and control circuits
3. TREADMILL MOTOR
a) Variable speed reversing 0-90 volt DC motor. Has three
wires, red, black and green.
If there is DC voltage on the Red wire (M+) the
treadmill motor will turn clockwise.
If there is DC voltage on the Black wire (M-) the
treadmill motor will turn counter-clockwise.
The higher the voltage the faster the motor turns.
The greed wire is neutral.
4. INCLINE MOTOR
a) Reversing 110V AC motor.
Has three wires, red, black and green.
If there is AC voltage on the Red wire (DOWN) the
incline motor will increase the incline.
If there is AC voltage on the Black wire (UP) the
incline motor will decrease the incline.
The green wire is neutral.
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NO
YES
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 all windows will
appear blank.
2. READY MODE
a) When the treadmill is ON and the SAFETY KEY is inserted
on the console, the LED display’s all windows for 1 second,
the dot matrix will show “Press user WEIGHT” and
TIME/LAPS window displays 155.0bls.
3. SLEEP MODE
a) In SLEEP Mode, if “START” or “MODE” are pressed then
the treadmill enters READY Mode.
4. RUN MODE
a) In RUN Mode, pressing the “OFF” button and removing the
SAFETY KEY will cause the treadmill stop instantly and
enter OFF Mode.
5. FOLDING MODE
a) If treadmill is not used, user can fold it by using auto-
folding.
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B FUNCTION
1. SPEED
a) Displays the current speed in Miles per hour.
b) DISPLAY range is 0.0 to 99.9 mph.
c) WORK range is 1.0 to 12.0 mph.
d) Press “FAST” or ”SLOW” to adjust speed, each increment
and decrement is 0.1 mph.
2. INCLINE
a) Displays the incline position from 0 to 10.
b) DISPLAY range is 0 to 999.
c) WORK range is 0 to 10.
d) INCLINE preset value is 0 to 10.
e) Press “UP” or “ DOWN ” to adjust incline, each increment
and decrement is 1.
3. TIME
a) TIME divides in to COUNT UP and COUNT DOWN.
System preset is COUNT UP, if user set 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 setting range is 90:00 to 00:00.
e) When TIME is set, the count will go to zero.
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