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Life Fitness 4000 User's Manual

1. MOTOR NUT The distance should be preset at 6 25 inches 15 875 cm Position the new LIFT ACTUATOR ASSEMBLY in place and reverse Steps 1 through 7 to return all parts to their proper locations NOTE BE CAREFUL TO ROUTE WIRES OF THE LIFT ACTUATOR IN A MANNER WHICH WILL AVOID PINCHING OR DAMAGE TO WIRES BY MOVING PARTS USE WIRE TIES TO INSURE WIRES STAY SECURE 14 Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE DRIVE MOTOR BELT Tools Required Phillips screwdriver socket and ratchet set hex kev wrench set Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the VENT COVER To Step 3 Remove the MOTOR COVER See How To Step 4 It will now be necessary to relieve the tension of the STRIDING BELT to allow removal of the DRIVE MOTOR BELT from the FRONT ROLLER HELPFUL HINT REMOVE THE END CAPS AND MARK THE POSITION OF THE REAR ROLLER ON THE INSIDE OF THE MOUNTING BRACKET TO LOCATE ITS ORIGINAL PLACEMENT THIS WILL HELP WHEN RE TENSIONING THE STRIDING BELT Using a hex key wrench ALTERNATELY loosen the two TENSIONING SCREWS and WASHERS securing each side of the REAR ROLLER to the REAR ROLLER MOUNTING BRACKETS an EQUAL number of times counter clockwise until the STRIDING BELT is slackened enough to allow for partial removal of the FRONT ROLLER IMPORTANT EACH ADJUSTMENT MADE TO ONE SIDE OF THE REAR ROLLER SH
2. Life Fitness Model 4000 Treadmill PARTS IDENTIFICATION SN 558000 UP Overlav Bezel Console AK40 00058 0001 Eng Eng 40 00057 0001 Eng Met AK40 00058 0004 Frn Met AK40 00057 0004 R Frn Met Handlebar w Grips OK40 01092 0001 Mono Column OK40 01093 0001 Stop Key Clip AK40 00035 0000 Motor Shroud AK40 00037 0002 Handrail Tube OK40 01006 0001 Wheel OK40 01021 0000 Leg Leveler 0017 00009 0796 Life Fitness Model 4000 Treadmill PARTS IDENTIFICATION SN 558000 UP Extrusion RT OK40 01165 0001 Extrusion LT OK40 01165 0002 End Cap RT OK40 01086 0007 End Cap LT Tray w Heart Rate optional OK40 01086 0008 GK40 00002 0006 Trav optional OK40 01095 0001 Telemetry Receiver SK40 00045 0001 SKK Handrail Mount SS OK40 01034 0001 Display Cable AK36 00017 0000 Vent Cover ON OFF Switch Push Cap Kit AK40 00039 0001 AK40 00052 0000 GK45 00002 0008 Removable Safety Switch 0017 00032 0191 SECTION IV Life Fitness Model 4000 Treadmill PARTS IDENTIFICATION SN 558000 UP 055 86 0 50000 100 0 1 16 0 0000 100 JOWAOJSUBLL 6000 c0000 St39 HA Utd WIT 0000 t L0L0 0t5O 0000 22000 0t V Ajquiassy 19JJOH 10044 AQvZ ZHO9 AOZZ H Z000 000 07 NV 2 09 021 1000 55000 0 Ajquiassy xuis1eaH 1000 52000 0 A quiessy L J novz ZHOSINOZZ LO00 ZELLO OVHO
3. electrical outlet Step 2 Remove the VENT E m See How CONSOLE Step 3 ERES SCREW Remove the MOTOR COVER See How To DISPLAY CONSOLE Step 4 Remove the TRAY if equipped with the optional HEART RATE KIT See 12 PIN How TO CONNECTORS Step 5 WIRE HARNESS Remove the Displav Console See How AW 6 Ground vourself to the machine positioning an ANTI STATIC GROUNDING STRAP around vour wrist and attaching the other end alligator clip to a MOUNTING SCREW or a connecting GROUND WIRE SCREW Step 7 Tuck the 12 PIN CONNECTOR which was disconnected from the DISPLAY CONSOLE into the top of the MONOCOLUMN Withdraw the DISPLAY WIRE HARNESS from the MONOCOLUMN through the large hole at the base of the MONOCOLUMN Step 8 Unplug the 12 PIN CONNECTOR from the HEATSINK CONTROLLER BOARD ASSEMBLY Step 9 Feed the new DISPLAY WIRE HARNESS through the MONOCOLUMN from the large hole at the base of the MONOCOLUMN until it exits toward the user side of the HANDLEBAR ASSEMBLY which crosses the top of the MONOCOLUMN NOTE THE 12 PIN CONNECTOR OF THE DISPLAV WIRE HARNESS SHOULD EXIT THE TOP OF THE MONOCOLUMN ON THE USER SIDE OF THE HANDLEBAR CONNECTING BRACKET TO AVOID ANV WIRES BEING PINCHED OR DAMAGED BV THE DISPLAV CONSOLE UPON ASSEMBLV Step 10 Reverse Steps 1 through 8 to return all parts to their proper positions Replace anv WIRE TIES which mav have been cut to insu
4. of the OPTO SPEED SENSOR When lit the OPTO SPEED SENSOR is reading through a slot in the chopper wheel that is mounted on the motor When the LED is off the OPTO SPEED SENSOR is being blocked by a slot on the chopper wheel Normal function of the LED is that it flashes on and off as the drive motor turns during operation The fifth LED from the top will inform you if the unit is a 120v or a 220v unit When the LED is off the unit is 110v When the LED is on the unit is 220v The sixth LED from the top indicates the elevation HOME SWITCH When the LED is off the HOME SWITCH is engaged and the unit is at zero elevation When the LED is lit the HOME SWITCH is disengaged and the unit is at a non zero elevation The left bottom LED is the EMERGENCY STOP SWITCH condition When this LED is lit the EMERGENCY STOP SWITCH is engaged and the unit operates When the LED is off the EMERGENCY STOP SWITCH is disengaged and the unit will not run The right bottom LED informs you if the BLANK STATE is set to the ON or OFF position Continued SECTION ll Lifestride Model 4000 Treadmill DIAGNOSTIC MODE Continued TO TEST THE ELEVATION Press the INCLINE to elevate the treadmill Press the INCLINE to lower the unit A beeping will occur while the unit is being lowered and the home switch is activated To completelv lower the elevation set the incline to 0 The unit will continue to lower its elevation until
5. pinpointed the source of the problem turn to the appropriate How To section and review the proper procedures for removing replacing or adjusting a part The How sections are organized by replaceable part or assembly name and each page lists the Tools Required to complete that specific function Refer to Section IV to identify the proper name and number of the part you will now need to order to repair your machine A form to order by FAX has also been included in Section IV for your convenience To order a part call Life Fitness Customer Support Services any Monday through Friday from 8 00 AM to 6 00 PM C S T When you place a call in order to speed our response to your particular situation please have the following information available for the customer service phone technician who will be prepared to assist you 1 The Treadmill model type 4000 2 The serial number Located on the front crossbar between the two wheels Serial Number 3 The symptom of the problem you are experiencing 4 The part name and number you need to order When you receive your order review the appropriate How To section and follow the step by step procedures designed to help you install the part quickly and correctly If you have any questions or comments please phone mail or fax us at one of the numbers listed below EE Relv on it CUSTOMER SUPPORT SERVICES 10601 Belmont Avenue Franklin Park IL 60131 Phone 800 351 3737
6. 0 Treadmill TABLE OF CONTENTS INTRODUCTION How to use this Service Manual TABLE OF CONTENTS SECTION I PAGE THEORY OF OPERATION 1 TROUBLESHOOTING GUIDES NO POWER DEE 2 NOISY TREADMILL i ee 3 SIRIDING BEL EE 4 UNIT RESETS 5 DISPLAY DOES NOT ILLUMINATE OR RESPOND TO INPBUT teen 6 UNIT WILL NOT 7 ERROR DISPLAY MESSAGES 8 HEART RATE DOES NOT 9 If Equipped with Optional Heart Rate Kit Tray SECTION II cS 1 4 SECTION III How To REMOVE AND REPLACE THE VENTEGOVER eodd todo c a a Aya po 1 MOTOR COMER i Su ON aN 2 DISPLAY GONSOLE LL BINT 3 HANDLEBAR AND HANDRAILS 2 4 DECK ANB STRIDING BELT 5 How To ADJUST AND TENSION THE STRIDING BELT 6 8 FRONT ROLLER ASSEMBLY nuir nee ee 9 REAR ROLE EER ASSEMBEY A EH 10 HEATSINK CONTROL BOARD AGGEMDI NV 11 12 DISPLAY WIRE HARNESS annann aen 13 LIFT ACTUATOR ASSEMBEY 14 DRIVE MOTOR BEL i a MO NA i tupra 15 16 DRIVE MOTQR ASSEMBLY A A a DD 17 18 LIBEESPRINGS AM NA A TO CO 19 TRAY Optional Heart Rate Kit nn nar 20 SECTION IV WIRING DIAGRAM RR 1 PARTS 2 4 COMMUNICATING BY 5 6 Life Fi
7. 425 cm which is the equivalent of 65 stretch Step 3 Adjust TRACKING Life Fitness Model 4000 Treadmill How To ADJUST AND TENSION THE STRIDING BELT Continued Tools Required Hex kev wrench set phillips screwdriver CAUTION DO NOT MOVE OR PLACE VOUR HANDS UNDER THE UNIT WHILE THE MACHINE IS PLUGGED INTO AN ELECTRICAL OUTLET ltis EXTREMELV important that the treadmill be correctiv leveled prior to anv tracking adjustments An unstable unit mav cause Striding Belt misalignment Tracking Centering an Existing or New Striding Belt Step 1 Locate the two belt TENSIONING BOLTS on each side of the REAR ROLLER MOUNTING BRACKETS The TENSIONING BOLTS are accessible from the holes provided in the ENDCAPS Step 2 Enter the Manual program and set the belt speed to run at 4 0 mph STRIDING BELT PIVOT POINT See EQUAL EQUAL A e ROLLER NOTE EACH ADJUSTMENT MADE TO ONE SIDE OF THE REAR ROLLER MUST BE MET WITH EQUAL AND OPPOSITE ADJUSTMENT TO THE OTHER SIDE OF THE REAR ROLLER TO MAINTAIN AN IDEAL BELT TENSION AT THE PIVOT POINT CAUTION DO NOT OVER TIGHTEN THE TENSIONING BOLTS WHILE MAKING BELT ADJUSTMENTS OVER TIGHTENING OF BOLTS MAV OVER STRETCH AND DAMAGE THE STRIDING BELT AS WELL AS PLACE AN UNNECESSARV LOAD ON THE REAR ROLLER BEARINGS BELT BELT DRIFTING DRIFTING RIGHT LEFT ff the STRIDING BELT has moved to t
8. BLESHOOTING GUIDE Svmptom ERROR DISPLAV MESSAGES Malfunction ERROR MESSAGES START UP Occurs when the Striding Belt upon start up will speed up at a high rate RUNNING Occurs at sudden change in Striding Belt Speed BELT MOVING Occurs at interruption in power or when machine is just plugged in OVER SPEED Striding Belt moving faster than commanded Probable Cause Bad connection to Opto Speed Sensor Misaligned or damaged Opto Speed Sensor Moving Striding Belt was suddenly stopped Bad connection to Opto Speed Sensor Misaligned or damaged Opto Speed Sensor Spike or interruption in power Bad connection or damaged Line Cord Faulty ON OFF switch Damaged Control Board Faulty Control Board Corrective Action Checkall electrical connections Adjust or replace Opto Speed Sensor Reset machine by turning power OFF and ON at ON OFF switch Check all electrical connections Adjust or replace Opto Speed Sensor Reset machine by turning power OFF and ON at ON OFF switch Check all electrical connections or replace Line Cord Replace switch Replace Control Board Replace Control Board For Assistance Call Life Fitness Customer Support Services 1 847 451 0036 or 1 800 351 3737 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Svmptom OPTIONAL HEARTRATE KIT DOES NOT RESPOND Malfunction Heart Rate system does not respond Probable Cause Heart Rate cab
9. D CAPS and set aside Step 4 Remove the REAR ROLLER from the machine See How To Step 5 Remove the FRONT ROLLER ASSEMBLY See How To STRIDING BELT FRONT ROLLER Step 6 Use a hex key wrench to loosen and remove the four SCREWS securing the top of the DECK to the FRAME ASSEMBLY Step 7 Remove the worn DECK and STRIDING BELT from the FRAME ASSEMBLY Step 8 Position a new DECK and STRIDING BELT in place and reverse Steps 1 through 6 to return all parts to their proper locations Refer to How to ADJUST AND TENSION THE STRIDING BELT for proper BELT tensioning instructions NOTE DO OVERTIGHTEN THE TENSIONING BOLTS TO AVOID DAMAGE THE STRIDING BELT AND THE ROLLER BEARINGS SECTION Life Fitness Model 4000 Treadmill How To ADJUST AND TENSION THE STRIDING BELT Tools Required Hex kev wrench set phillips screwdriver A REPLACING THE STRIDING BELT WITH A NEW STRIDING BELT CAUTION WHENEVER REMOVING OR REINSTALLING AN EXISTING STRIDING BELT DO NOT REMOVE OR LOOSEN THE FRONT ROLLER 1 After installing the new STRIDING BELT but prior to tensioning place two pieces of tape exactiv 38 5 inches 97 79 cm apart on both the right and left edges of the STRIDING BELT Tape 4 Places o 38 5 Inches gt Step 2 Alternately tighten the two TENSIONING BOLTS 1 4 turn clockwise each until the distance between the tapes is 38 75 inches 98
10. DOT ON THE HEART RATE MONITOR RECEIVER PLUGGED IN TO THE RECEPTACLE INSIDE THE TRAY SHOULD ALWAYS FACE TOWARD THE USER 20 Life Fitness Model 4000 Treadmill NOTES 21 SECTION Al NOILO3S EINEN AIWAD 3 51 Keelt 5 a ad K4opuo2as pei HOOT ZH 09 MOLDE V 5 01 8 OWA el OV Del SjouruJa 003504 SWNIHHAL NDISWA 052 Life Fitness Model 4000 Treadmill WIRING DIAGRAM lil 504 Z INN INN Ed ZH 09 OWA Del B HA U H 3 seen m LI xoig Z Ty SF wn ANRI sain 5m SNO ayoa TOHLNOQ 50 NW AND SUY 5 BA pub espo GH ma pei PET 22 8 x SOd v ad 55 47 lt lt gt NNOD 961 LN HOLON Lall SIE INA AND SOd ZI 4 won 961 IN per 0 per 5m O dg A VO 8846 DSN3S 1334S 10001300 gt f 311323 37104 E xpbiq pei me 05 001 NI AL s umog s dn bjo And peeds K un uo um Bux oJo7 pug vunten 031 AV lasla
11. DRAILS Tools Required Phillips Screwdriver hex kev wrench set 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the DISPLAY CONSOLE See How To Step 3 Remove the two HEX KEY SCREWS securing the center of the foam padded HANDLEBAR to the top of the MONOCOLUMN Step 4 Loosen and remove the 2 top and the 2 1 2 bottom SCREWS securing the base of each of the two VERTICAL POSTS to the FOOT BRACKETS located on either side of the treadmill Step 5 Lift the entire HANDLEBAR HANDRAIL ASSEMBLY away from the machine and set it down on the floor Remove the SCREW securing each of the two VERTICAL POSTS to the foam padded HANDLEBARS and slide the POSTS from the HANDLEBARS Step 6 Replace the VERTICAL POST S or HANDLEBAR as desired and reverse Steps 1 through 5 to return all parts to their proper positions Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE DECK AND STRIDING BELT Tools Required Phillips Screwdriver socket set hex kev wrench set IMPORTANT THE DECK AND STRIDING BELT SHOULD ALWAVS BE REPLACED IN TANDEM DONOT REPLACE ONE WITHOUT THE OTHER 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the MOTOR COVER See How To Step 3 Use a phillips screwdriver to remove the three SCREWS securing each of the END CAPS to the Treadmill FRAME Remove the EN
12. Detach the SENSOR CABLE from the black retaining clip attached to the metal heat sink on the CONTROL BOARD ASSEMBLY Disconnect the SENSOR CABLE CONNECTOR from the CONTROL BOARD Note the orientation of the SENSOR CABLE CONNECTOR on the CONTROL BOARD for reference during installation Step 6 It will now be necessary to relieve the DRIVE MOTOR BELT tension by removing the LOCK NUT on the TENSIONING BOLT located next to the LIFT ACTUATOR NOTE IF A BELT TENSIONING GUAGE IS NOT AVAILABLE MARK THE CURRENT SETTING OF THE TENSIONING BOLT BY LOCATING A PIECE OF TAPE ON THE BOLT AGAINST THE BRACKET ON THE OPPOSITE SIDE OF THE LOCK NUT ALSO COUNT AND NOTE THE NUMBER OF TURNS REQUIRED TO REMOVE THE LOCK NUT THIS WILL AID IN PROPERLY TENSIONING THE DRIVE BELT DURING INSTALLATION Remove the 1 4 20 nylon insert LOCK NUT from the TENSIONING BOLT Pivot the MOTOR MOUNTING BRACKET rearward and remove the DRIVE MOTOR BELT from the MOTOR PULLEY Continued 17 SECTION Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE DRIVE MOTOR Continued Step 7 Remove the two DRIVE MOTOR ASSEMBLY mounting SCREWS securing the ASSEMBLY to the MOTOR MOUNTING BRACKET by using a 1 4 hex wrench Remove the DRIVE MOTOR ASSEMBLY from the unit Pivoting the MOTOR MOUNTING BRACKET may be required to remove the ASSEMBLY Step 8 Align the new DRIVE MOTOR ASSEMBLY with the MOTOR MOUNTING BRACKET Locate the new DRIVE MOTOR ASSEMBLY into position a
13. Eeer Rely on it Model 4000 Treadmill Customer Support Services SERVICE MANUAL 1998 Life Fitness a division of Brunswick Corporation All rights reserved All rights reserved Life Fitness Lifecycle Lifepulse and Flexdeck are registered trademarks and Heart Rate Zone Training Lifespring and RELY ON IT are trademarks of Brunswick Corporation Polar is a registered trademark of Polar Any use of these trademarks without the express written consent of Life Fitness or the corresponding companies is forbidden M051 00K40 A030 10 98 Life Fitness Model 4000 Treadmill INTRODUCTION HOW TO USE THIS SERVICE MANUAL In the unlikely event that an operating problem may occur with your Life Fitness model 4000 treadmill this Service Manual will instruct and guide you on the quickest most efficient manner in which to approach the situation This Service Manual has been separated into a total of Four Sections for quick reference o INTRODUCTION o TABLE OF CONTENTS Section I o THEORY OF OPERATION o TROUBLESHOOTING GUIDES Section Il o DIAGNOSTIC TESTS Section o MODEL 4000 How GUIDES Section IV o WIRING DIAGRAMS o PARTS IDENTIFICATION COMMUNICATING BY FAX If an operating problem should arise turn to the TROUBLESHOOTING GUIDES and attempt to isolate what is causing the malfunction The GUIDES are listed by symptoms and follow with suggestions as to the most probable cause of the problem Once you have
14. H to distribute wax onto Striding Belt Reposition the Lifesprings Replace Drive Motor Belt Check Drive Motor Pulley to insure Pulley is aligned with Front Roller Pulley Tighten the Set Screws to secure the Pulley into place Slacken Drive Belt tension See How To Remove and Replace the Drive Motor Belt Check Drive Motor Flywheel and Software for compatibilitv See Diagnostic Software Version Replace Drive Motor Perform Lift Test See Diagnostics Replace faultv Lift Actuator For Assistance Call Life Fitness Customer Support Services 1 847 451 0036 or 1 800 351 3737 SECTION I Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Svmptom STRIDING BELT Malfunction Striding Belt will not move Striding Belt hesitates upon start up or will not begin to turn on new machine Maximum speed reduced Striding belt comes in contact with End Caps Probable Cause Insufficient power source Faultv Control Board High amount of friction between Deck and Striding Belt Striding Belt Deck Malfunction e Deck laminate is worn through e Belt worn Line Voltage too low Striding Belt slips Drive Motor Belt slipping Unit is not level Striding Belt needs to be re tensioned Missing rubber spacer End Cap s distorted Striding Belt stretched or too long Corrective Action Plug treadmill into power source with proper electrical requirements See Operation Manual R
15. N ROD Step 4 Slide the DRIVE MOTOR PULLEY BELT from the FRONT ROLLER ASSEMBLY PULLEY Lift the worn FRONT ROLLER ASSEMBLY from the EXTRUSION BRACKETS and from within the STRIDING BELT to remove it from the unit Step 5 Locate the new FRONT ROLLER ASSEMBLY into position and reverse Steps 1 through 5 to return all parts to their proper locations Step 6 Refer to How To ADJUST AND TENSION THE STRIDING BELT for proper BELT tensioning instructions SECTION Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE REAR ROLLER Tools Required Socket and ratchet set hex kev wrench set 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the MOTOR COVER See How Step 3 Use a phillips screwdriver to remove the three SCREWS securing each of the END CAPS to the FRAME and set the END CAPS aside Step 4 REAR ROLLER Use a hex key wrench to loosen and remove the TENSIONING SCREW and WASHER securing each side of the REAR ROLLER to the REAR ROLLER MOUNTING BRACKETS SCREW HELPFUL HINT MARK THE POSITION OF THE REAR ROLLER ON THE INSIDE OF THE MOUNTING BRACKET TO LOCATE ITS ORIGINAL PLACEMENT THIS WILL HELP WHEN RE TENSIONING THE STRIDING BELT Step 5 Remove the worn REAR ROLLER STRIDING BELT from the machine Step 6 Position the new REAR ROLLER against the MOUNTING BRACKETS and use a hex key wrench to install the TENSIO
16. NING SCREWS and WASHERS by alternately turning the SCREWS clockwise an equal number of turns until the STRIDING BELT is snug but not overstretched against the REAR ROLLER IMPORTANT EACH ADJUSTMENT MADE TO ONE SIDE OF THE REAR ROLLER SHOULD BE MET WITH AN EQUAL ADJUSTMENT TO THE OTHER SIDE OF THE ROLLER TO MAINTAIN AN IDEAL BELT TENSION AT THE CENTER PIVOT POINT OF THE ROLLER Step 7 Reverse Steps 1 through 3 to return all parts to their proper positions and refer to How To ADJUST AND TENSION THE STRIDING BELT for proper BELT tensioning instructions 10 Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE HEATSINK CONTROL BOARD ASSEMBLV Tools Required Phillips Screwdriver socket and ratchet set hex kev wrench set WARNING FAILURE TO OBSERVE SAFE PROCEDURES WHEN SERVICING THIS UNIT COULD RESULT IN INJURV FROM ELECTRICAL SHOCK Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the VENT COVER See To Step 3 Remove the MOTOR COVER See How To Step 4 Ground yourself to the machine by positioning an ANTI STATIC GROUNDING STRAP around your wrist and attaching the other end alligator clip to a MOUNTING SCREW or a connecting GROUND WIRE SCREW Step 5 Unplug the six CONNECTORS shown in the illustration from the HEATSINK CONTROL BOARD ASSEMBLY NOTE A MOMENT TO NOTE THE LOCATIONS OF THE CONNECTORS PRI
17. OF THE MOTOR HOUSING DURING TENSIONING Connect the three DRIVE MOTOR lead wires to the proper DRIVE MOTOR TERMINALS See Step 4 Attach the new SENSOR CABLE to the black retaining clip Connect the SENSOR CABLE CONNECTOR to the CONTROL BOARD terminal Install a new WIRE TIE to secure the SENSOR CABLE and the three DRIVE MOTOR LEAD WIRES in the same location from which the previous WIRE TIE was removed Step 13 Manually rotate the DRIVE MOTOR SHAFT Check that all wiring is adequately dressed to clear rotating components Redress wiring if required Step 14 Reverse Steps 1 through 3 to return all parts to their proper positions 18 Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE LIFESPRINGS Tools Required Phillips screwdriver socket and ratchet set hex kev wrench set 1 Turn the power OFF the on off switch and then unplug the unit from the electrical outlet Step 2 Remove the MOTOR COVER See How To Step 3 Remove the DECK and STRIDING BELT See How To Step 4 Insert a hex key wrench into the access hole located on of the LIFESPRING Loosen and remove the SCREW through the access hole Step 5 Lift the entire LIFESPRING ANTI ROTATION CLIP ASSEMBLY from the machine Slide the worn LIFESPRING out of the ANTI ROTATION CLIP and replace with a new LIFESPRING Step 6 Reposition the LIFESPRING ANTI ROTATION CLIP ASSEMBLY in place taking note that the lower lip of t
18. OR TO UNPLUGGING THEM FROM THE CONTROL BOARD CAPACITOR SHOWN REMOVED TO SHOW DETAIL PROTECTIVE COVE 2 i HEATSINK Mi CONTROL BOARD ASSEMBLV MOUNTING SCREW MOUNTING SCREW Continued Life Fitness Model 4000 Treadmill 11 SECTION How To REMOVE AND REPLACE THE HEATSINK CONTROL BOARD ASSEMBLY Continued Step 6 Use a socket wrench to loosen and remove the two SCREWS securing the GROUNDING WIRES to the HEATSINK CONTROL BOARD ASSEMBLY Step 7 Lift off the PROTECTIVE COVER from the top of the CAPACITOR Remove the POSITIVE and NEGATIVE WIRE CONNECTORS leading from the DRIVE MOTOR ASSEMBLY to the CAPACITOR NOTE THE CAPACITOR IS POLARIZED RED BLACK Step 8 Remove the two MOUNTING SCREWS securing the HEATSINK CONTROL BOARD ASSEMBLY to the MOTOR PAN Step 9 Carefully lift the malfunctioning HEATSINK CONTROL BOARD ASSEMBLY from the machine and set aside Step 10 Place the new HEATSINK CONTROL BOARD ASSEMBLY into position and reverse Steps 1 through 8 to return all parts to their proper locations 12 Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE DISPLAV WIRE HARNESS Tools Required Phillips Screwdriver socket and ratchet set hex kev wrench set WARNING FAILURE TO OBSERVE SAFE PROCEDURES WHEN SERVICING THIS UNIT COULD RESULT IN INJURV FROM ELECTRICAL SHOCK Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the
19. OULD BE MET WITH AN EQUAL ADJUSTMENT TO THE OTHER SIDE OF THE REAR ROLLER TO MAINTAIN AN IDEAL STRIDING BELT TENSION AT THE CENTER PIVOT POINT OF THE REAR ROLLER UPON RE TENSIONING Continued Life Fitness Model 4000 Treadmill 15 SECTION III How To REMOVE AND REPLACE THE DRIVE MOTOR BELT Continued Step 5 Liftthe FRONT ROLLER ASSEMBLY from the EXTRUSION BRACKETS and position the FRONT ROLLER within the STRIDING BELT to allow for removal of the DRIVE MOTOR BELT from the DRIVE MOTOR and FRONT ROLLER PULLEVS Step 6 Position a new DRIVE MOTOR BELT over the DRIVE MOTOR and FRONT ROLLER PULLEVS taking note to properlv align the ribs within the grooves of the PULLEVS Relocate the FRONT ROLLER back into operating position Step 7 Use a hex kev wrench to tighten the TENSIONING SCREWS and WASHERS at the REAR ROLLER bv ALTERNATELY turning the SCREWS clockwise an EQUAL number of times each until the STRIDING BELT is snug but not overstretched against the REAR ROLLER Step 8 Check the tension of the DRIVE BELT using a BELT TENSIONING GUAGE Belt tension 100 16 5 Ib The DRIVE BELT tension can be adjusted by loosening or tightening the LOCK NUT of the TENSIONING BOLT located next to the LIFT ACTUATOR Step 9 Reverse Steps 1 through 4 to return all parts to their proper positions and refer to How To ADJUST AND TENSION THE STRIDING BELT for proper BELT tensioning instructions CHECKING THE DRIVE BELT PULLEY ALIGNMENT I
20. PEED INCLINE 0 294 50 11 31 01 41 800 735 3867 ATLANTIC PLACE STOP KEY HERE LIFE FITNESS USA SECTION ll Life Fitness Model 4000 Treadmill DIAGNOSTIC TESTS Continued The SPEED 7 kev is used for the following testing information CHECK THE DISPLAY KEYPAD FUNCTIONS REVIEW STATISTICS IDENTIFY SOFTWARE VERSION Use the ENTER key to advance through the test Power up the unit while holding the SPEED key All LED s on the display console will light Press ENTER once and the console will begin to scroll through lighting LED s individually Press ENTER second time and this will bring you to the keypad test By pressing each of the six keys a pattern of LED s will light This verifies that each of the keys is responding as intended Press ENTER a third time and the word STATS will appear in the display readout Pressing the SPEED key will scroll you through the individual statistics To scroll back through the statistics press the SPEED o key 1st press DISTANCE LED lit miles in hundreds 2nd press TIME LED lit motor on time in seconds 3rd press INCLINE LED lit lift motor run time 1 8 of a second 4th press CAL HR LED lit percentage of elevation and time percentage of elevation usage 5th press SPEED LED lit current limiter activation Press ENTER a fourth time and this will give you the s
21. TES SECTION IV
22. Toll Free or 847 451 0036 FAX 800 216 8893 Toll Free or 847 288 3702 Warning Possible Radio Television Interference NOTE This equipment has been tested and found to comply with the limits pursuant to Part 15 of the rules These limits are designed to provide reasonable protection against harmful interference in a residential installation Any changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that the interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on you are encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the space between the equipment and the receiver Connect the equipment to an outlet on a different circuit than that to which the receiver is connected Consult an exercise equipment dealer or an experienced radio TV technician for help Vou are cautioned that anv changes or modifications to this equipment could void vour product warrantv Life Fitness Model 400
23. Treadmill TROUBLESHOOTING GUIDE Svmptom DISPLAV DOES NOT ILLUMINATE OR RESPOND TO INPUT Malfunction Probable Cause Display will not illuminate Insufficient power source when machine is turned on Loose connection at Display Console or Control Board Faulty Control Board Faulty Display Console Corrective Action Plug Treadmill into power source with proper electrical requirements See Operation Manual Secure connections at Display Console and Control Board With a volt meter check cable voltage at P1 Console cable for 8v DC pin 2 positive pin 8 negative Replace Display Console For Assistance Call Life Fitness Customer Support Services 1 847 451 0036 or 1 800 351 3737 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Malfunction Unit will not elevate Unit jammed at top of elevation Symptom UNIT WILL NOT ELEVATE Probable Cause Corrective Action Line Cord is crossed over lifting Check position of Line Cord placement assembly Faulty Lift Actuator limits Perform Lift Test See Diagnostics Defective Lift Actuator Replace Lift Actuator Faulty Control Board Replace Control Board Faulty Home Switch Perform Lift Home Switch Test Defective Home Switch Replace Home Switch Faulty Control Board Replace Control Board For Assistance Call Life Fitness Customer Support Services 1 847 451 0036 or 1 800 351 3737 SECTION I Life Fitness Model 4000 Treadmill TROU
24. ction at outlet Replace line cord See Display Console symptom For Assistance Call Life Fitness Customer Support Services 1 847 451 0036 or 1 800 351 3737 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Malfunction Rubbing sound from beneath machine Rubbing sound from Striding Belt Popping sound Squeaking noise Groaning sound heard from front of machine Loud Groaning sound heard from front of machine while elevating Probable Cause Foreign objects may be stuck under the machine Striding Belt not tracking properly Striding Belt is rubbing on extrusion or roller pulley Striding Belt is rubbing on belt guide Insufficient break in period Wax accumulation on rear roller Lifesprings may be out of alignment Drive Motor Belt may be worn or damaged Drive Motor Pulley shifted Drive Motor Belt over tensioned Weak Drive Motor Drive Motor Software Faulty Drive Motor Faulty Lift Actuator Symptom NOISY TREADMILL Corrective Action Inspect underneath Belt and Machine Remove any debris or accumulation Adjust Striding Belt tracking See How To Adjust and Tension the Striding Belt Center Striding Belt See How To Adjust and Tension the Striding Belt Center Striding Belt See How To Adjust and Tension the Striding Belt A new Deck and Striding Belt will require a break in period of approx 20 hours Run machine at 4 to 5 MP
25. d the display will automatically act as a screen saver and shut off after 4 minutes of non use Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE VENT COVER Tools Required Phillips Screwdriver Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Monocolumn Motor Cover Vent Cover Screws Step 2 Use a phillips screwdriver to remove the two SCREWS securing the sides of the VENT COVER to the MOTOR COVER Step 3 Grasp the VENT COVER in the center and pull away from the MOTOR COVER to disengage the two snap down CLIPS located on the inside center of the VENT COVER Step 4 Position the new VENT COVER into place and reverse steps 1 through 3 to return all parts to their proper locations SECTION Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE MOTOR COVER Tools Required Phillips Screwdriver hex kev wrench set Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the VENT COVER See How MONOCOLUMN VENT COVER SCREWS FIBERBOARD WEDGE RETAINING PLATE Step 3 Use a phillips screwdriver to remove the SCREW securing the RETAINING PLATE and FIBERBOARD WEDGE in place on the MONOCOLUMN Step 4 Remove the four SCREWS securing the MOTOR COVER in place against the Treadmill FRAME Lift the MOTOR COVER from the machine Step 5 Place the new MOTOR COVER in p
26. eplace Control Board Start unit with no one on it at 3 5 mph and 5 or greater incline Step on to the Belt while it is moving and walk for 4 to 5 minutes Replace Striding Belt and Deck Plug the Treadmill into a power source with the proper electrical requirements Adjust Striding Belt Tension See How To See How To Remove and Replace the Drive Motor Belt for proper Drive Motor Belt tensioning instructions Adjust rear leveling legs See Operation Manual Adjust Striding Belt Tension See How To Replace rubber spacer between Frame and End Cap Replace End Cap s Replace Deck and Striding Belt For Assistance Call Life Fitness Customer Support Services 1 847 451 0036 or 1 800 351 3737 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Malfunction Unit Resets Randomly Symptom UNIT RESETS RANDOMLY Probable Cause Insufficient Power Source Damaged Line Cord Line Cord improperly seated in electrical outlet Low AC line voltage Loose connections Corrective Action Plug Treadmill into power source with proper electrical requirements See Operational Manual Replace Line Cord Secure connection at electrical outlet Too many items tied into AC line Use a different circuit line outlet Check and secure all connectors For Assistance Call Life Fitness Customer Support Services 1 847 451 0036 or 1 800 351 3737 SECTION I Life Fitness Model 4000
27. he ANTI ROTATION CLIP rests against the FRAME of the Treadmill Secure the ASSEMBLY in place with the SCREW Step 7 SCREW LIFESPRING ANTI ROTATION CLIP TREADMILL FRAME Reverse Steps 1 through 3 to return all parts to their proper locations Refer to How To Adjust and Tension the Striding Belt for proper STRIDING BELT tensioning instructions 19 SECTION Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE TRAY Optional Heart Rate Kit Tools Required Phillips screwdriver Step 1 Turn the power OFF by unplugging the unit at the electrical outlet Step 2 Remove the two SCREWS located on the underside of the TRAY which are securing the TRAY to the DISPLAY CONSOLE Hold on to the TRAY during this procedure to prevent the TRAY from falling and possibly damaging the WIRE HARNESS Step 3 Swing the TRAY slowly away from the back of the DISPLAY CONSOLE while the extended arms of the TRAY continue to rest on the HANDLEBARS of the treadmill Step 4 Unplug the 3 PIN CONNECTOR of the Heart Rate Monitor Receiver HARNESS located within the TRAY from the matching 3 PIN CONNECTOR on the back of the DISPLAY CONSOLE Step 5 Swing the TRAY down while lifting the DISPLAY CONSOLE TRAY extended arms of the TRAY from the HANDLEBARS and remove from the machine Reverse Steps 1 through 4 to replace the TRAY and restore all parts to their original positions NOTE THE RED
28. he right ff the STRIDING BELT has moved to the left turn turn the right TENSION BOLT 1 4 turn clock wise the left TENSION BOLT 1 4 turn clock wise and the and the left TENSION BOLT 1 4 turn counter right TENSION BOLT 1 4 turn counter clockwise to clockwise to start the STRIDING BELT tracking start the STRIDING BELT tracking back to the back to the center of the REAR ROLLER center of the REAR ROLLER Continued Life Fitness Model 4000 Treadmill SECTION III How To ADJUST AND TENSION THE STRIDING BELT Continued Tools Required Hex kev wrench set phillips screwdriver Step 3 Repeat adjustments until the STRIDING BELT appears centered Allow the machine to continue running for several minutes to observe if the tracking remains stabilized CAUTION DO NOT MOVE OR PLACE VOUR HANDS UNDER THE UNIT WHILE THE MACHINE IS PLUGGED INTO AN ELECTRICAL OUTLET ltis EXTREMELV important that the treadmill be correctiv leveled prior to anv tracking adjustments An unstable unit mav cause Striding Belt misalignment Tensioning an Existing Striding Belt Step 1 Locate the two BELT TENSIONING BOLTS on each side of the REAR ROLLER MOUNTING BRACKETS The TENSIONING BOLTS are accessible from the holes provided in the ENDCAPS Step 2 Enter the Manual program and run unit for five minutes at 5 0 mph DO NOT runon the BELT Step 3 Using the speed decrease button V bring the STRIDING BELT speed down to 2 mph With the STRIDING BELT speed at 2
29. le not connected Loose connection at Receiver Loose connection at Console User error User may have an unusual heart beat Faulty Transmitter and or Receiver Heart Rate kit Faulty Display Console Outside noise Cross talk Corrective Action Check all electrical connections Secure connection at Receiver Secure connection at Console and Handlebar Check Heart Rate kit operating instructions Have different people try Transmitter chest strap Replace Transmitter and or Receiver Heart Rate kit Replace Display Console Move unitto another location For Assistance Call Life Fitness Customer Support Services 1 847 451 0036 or 1 800 351 3737 SECTION I Life Fitness Model 4000 Treadmill NOTES 10 Life Fitness Model 4000 Treadmill DIAGNOSTIC TESTS PURPOSE This Section describes the test procedures for the Life Fitness 4000 Treadmill Displav Console Board including the Heart Rate feature operational only if equipped with the optional Heart Rate Kit Tray SCOPE Diagnostic procedures will test the Display Console Board as used in the final Treadmill assembly These procedures will insure proper functioning of the Console LED s Keys and Displays as well as identify the Console version PROCEDURE Begin with the Treadmill turned OFF Hold the designated key during power up to enter into the chosen Diagnostic Menu TIME CALORIES DISTANCE V V V O CH O INCLINE CALORIES HOUR S
30. mph tightly grasp the HANDRAILS and attempt to stall the STRIDING BELT If the STRIDING BELT slips continue to Step 4 if it does not slip the tension is correct Step 4 Stop the treadmill and alternatelv turn the STRIDING BELT TENSIONING BOLTS 1 4 turn clock wise to tension NOT exceeding one full turn See Tracking Centering an Existing or New Striding Belt on previous page Repeat Step 3 Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE FRONT ROLLER ASSEMBLV Tools Required Phillips screwdriver socket set hex kev wrench set Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the MOTOR COVER See How To Step 3 It will now be necessary to relieve the tension on the STRIDING BELT by accessing the TENSIONING BOLTS from the rear ENDCAPS IMPORTANT EACH ADJUSTMENT MADE TO ONE SIDE OF THE REAR ROLLER MUST BE MET WITH AN EQUAL ADJUSTMENT TO THE OTHER SIDE OF THE ROLLER TO MAINTAIN AN IDEAL BELT TENSION AT THE PIVOT POINT HELPFUL HINT MARK THE POSITION OF THE REAR ROLLER ON THE INSIDE OF THE MOUNTING BRACKET TO LOCATE ITS ORIGINAL PLACEMENT THIS WILL HELP WHEN RE TENSIONING THE STRIDING BELT Use a hex kev wrench to alternatelv turn the STRIDING BELT TENSIONING BOLTS 1 4 turn each counter clockwise until the STRIDING BELT is slackened enough to allow for removal of the FRONT ROLLER in the next Step EXTRUSION BRACKET TENSIO
31. nd secure IN PLACE with the two SCREWS Support the DRIVE MOTOR ASSEMBLY with one hand beneath it while inserting the SCREWS with the other hand Install the DRIVE MOTOR BELT onto the DRIVE MOTOR PULLEY Be sure the DRIVE BELT properly engages all ribs on both the DRIVE MOTOR and the FRONT ROLLER PULLEYS Step 9 Check that the SHAFT KEY located on the DRIVE MOTOR SHAFT is properly seated within one of the four KEY slots in the PLASTIC FAN and that the PLASTIC FAN rests against the shoulder in the MOTOR SHAFT Reposition the SHAFT KEY and FAN as required if they are not properly aligned DRIVE MOTOR SHAFT Step 10 Use a STRAIGHT EDGE to align the flat sides of the DRIVE MOTOR PULLEY and the FRONT ROLLER PULLEY The faces of the two PULLEYS should be in SET SCREW line coplanar If the PULLEYS are not aligned loosen e gt the two SET SCREWS on the DRIVE MOTOR PULLEY gt and adjust as necessarv aligned recheck the SHAFT KEY and PLASTIC FAN positions per Step 9 above and tighten the two DRIVE MOTOR PULLEY SET SCREWS Step 11 DRIVE MOTOR PULLEV Install the 1 4 20 nylon insert LOCK NUT onto the TENSIONING BOLT and if available use a belt tensioning gauge to tension the DRIVE MOTOR BELT to 100 Ib 5 Ib Step 12 NOTE IF A GAUGE IS NOT AVAILABLE RE INSTALL THE LOCK NUT BY TURNING IT THE SAME NUMBER OF TIMES IT WAS TURNED ON REMOVAL BE SURE THE TENSIONING BOLT IS POSITIONED PROPERLY IN THE SLOT AT THE FRONT
32. oftware version of the treadmill For example the display reads 4 3EE1 translates to 3 SOFTWARE VERSION ENGLISH MEASUREMENT MILES ENGLISH LANGUAGE 120V Emm Press ENTER a fifth time and UNITS appears in the displav readout Pressing the SPEED kev will change the unit of measure from english to Press ENTER a sixth time and LANG appears in the displav readout Pressing the SPEED c kev enables vou to change from english to a foreign language Vou can go back to the start at anv time in this test mode bv pressing the CLEAR PAUSE kev Continued Life Fitness Model 4000 Treadmill DIAGNOSTIC TESTS Continued The INCLINE 7 kev is used for the following testing information ELEVATION TEST HOME SWITCH SPEED MODE OPERATION HEARTRATE MODE OPERATION if equipped with optional heart rate kit BLANKING ON OFF Power up the unit while holding down the INCLINE key The display console will read TEST MODE Upon initial entry into the test mode the two columns of the program profile window will have one to two LED ss lit The first three LED s from the top of the left column are related to jumpers which are not applicable to any of the test modes 545 e e NOT USED JUMPERS lt R31 USED R30 NOT USED OPTO SPEED SENSOR NOT USED 110V 220V NOT USED 110 ELEVATION NOT USED HOME SWITCH EMERGENCV BLANKING STOP SWITCH ON OFF The fourth LED from the top indicates the condition
33. ors the keypad and safety switches It determines the drive motor and lift actuator actions to suit the chosen Life Fitness aerobic training program and it also accommodates the optional heart rate receiver The drive motor is the component responsible for moving the striding belt The speed sensor located on the drive motor sends pulses through the control board to the display console which converts them to the striding belt speed The display console adjusts the power to the drive motor to maintain a constant speed to the striding belt resulting in a more comfortable feel The lift actuator is the component responsible for raising and lowering the incline level of the Treadmill The displav console through the control board will raise and lower the lift actuator for the appropriate amount of time and incline required bv a specific command The Home lift limit switch signals the displav console when the lift actuator is at 0 incline The lift actuator also has its own internal built in limit switches SECTION I Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Svmptom NO POWER Malfunction Probable Cause No Power On off switch Insufficient power source Line cord improperly seated in electrical outlet Damaged line cord Faulty Display Console Corrective Action Turn unit On Plug treadmill into power source with proper electrical requirements See Operation Manual Inspect power conne
34. osition and reverse Steps 1 through 4 to return all parts to their proper locations Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE DISPLAV CONSOLE Tools Required Phillips Screwdriver Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the TRAY if equipped with the optional HEART RATE kit See Step 3 Use a phillips screwdriver to remove the two SCREWS securing the extended neck of the DISPLAY CONSOLE to the front and back of the MONOCOLUMN BACK OF DISPLAY CONSOLE SCREW DISPLAY CONSOLE 12 PIN CONNECTORS Step 4 Carefully lift the worn DISPLAY CONSOLE up from the MONOCOLUMN and unplug the 12 PIN CONNECTOR of the WIRE HARNESS from the back of the DISPLAY CONSOLE Step 5 Plug the 12 PIN CONNECTOR of the WIRE HARNESS protruding from the top of the MONOCOLUMN into the corresponding PC BOARD CONNECTOR located on the back of the new DISPLAY CONSOLE Once connected feed the excess CABLE of the WIRE HARNESS back into the top of the MONOCOLUMN and lower the DISPLAY CONSOLE into position on the MONOCOLUMN Secure the extended neck of the DISPLAY CONSOLE to the front and back of the MONOCOLUMN with the two SCREWS Step 6 Plug the unit into an electrical outlet and turn the power ON at the ON OFF switch to resume operation SECTION Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE THE HANDLEBAR AND HAN
35. re the WIRE HARNESS is secure and will not be damaged bv moving parts Life Fitness Model 4000 Treadmill 13 SECTION How To REMOVE AND REPLACE THE LIFT ACTUATOR ASSEMBLV Tools Required Phillips screwdriver standard screwdriver hex kev wrench set WARNING FAILURE TO OBSERVE SAFE PROCEDURES WHEN SERVICING THIS UNIT COULD RESULT IN INJURV FROM ELECTRICAL SHOCK Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the VENT COVER See How To Step 3 Remove the MOTOR COVER See How To Step 4 Ground yourself to the machine by positioning an ANTI STATIC GROUNDING STRAP around your wrist and attaching the other end alligator clip to a MOUNTING SCREW or a connecting GROUND WIRE SCREW LIFT ACTUATOR LIFT MOTOR NUT D Ge Ze k PIN CLIP EN aw BOLT 5 LIFT FRAME ASSEMBLV Unplug the LIFT ACTUATOR P4 from the HEATSINK CONTROLLER BOARD ASSEMBLY Step 6 Disconnect the large LIFT MOTOR NUT from the pins holding it to the LIFT FRAME ASSEMBLY by removing the two HAIR PIN CLIPS and PUSH BOLTS Step 7 Remove the HAIR PIN CLIP and CLEVIS PIN securing the unthreaded end of the LIFT ACTUATOR to the FRAME Step 8 Carefully lift the malfunctioning LIFT ACTUATOR and remove it from the machine Step 9 Check the new LIFT ACTUATOR distance from the top of the threaded post to the center of the hole in the LIFT
36. t is a good practice to check the alignment of the DRIVE MOTOR BELT PULLEY and the FRONT ROLLER PULLEY whenever servicing or replacing the DRIVE MOTOR BELT With the power switch OFF and the machine unplugged from the electrical outlet lay a straightedge flat against the outside of the FRONT ROLLER PULLEY and the DRIVE MOTOR PULLEY The flat faces of the two PULLEYS should be in line coplanar If the PULLEVS are not in line loosen the two DRIVE MOTOR PULLEY SET SCREWS and adjust the DRIVE MOTOR PULLEY on the MOTOR SHAFT accordingly Tighten the SET SCREWS to secure the PULLEY into position 16 Life Fitness Model 4000 Treadmill How To REMOVE AND REPLACE DRIVE MOTOR Tools Required Phillips screwdriver socket and ratchet set hex kev wrench set Step 1 Turn the power OFF at the ON OFF switch and then unplug the unit from the electrical outlet Step 2 Remove the VENT COVER See How Step 3 Remove the MOTOR COVER See How To Step 4 Cut the WIRE TIE that secures the three DRIVE MOTOR ASSEMBLY lead wires and the SENSOR CABLE at the MOTOR HOUSING Note the location of this WIRE TIE for replacement later Disconnect the three DRIVE MOTOR lead wires from the MOTOR TERMINALS Note lead wire positions for reference during installation Orientation Black Green Red clockwise when facing FLYWHEEL NUT DRIVE MOTOR PULLEY TENSIONROD N MOTOR MOUNTING SCREW 2 PULLEY HEATSINK BOARD Step 5
37. the home switch or internal limit switch is engaged SPEED MODE Press anv speed kev to enter the speed mode The displav will present two numbers The left side number represents the actual speed The right side number represents the relative power applied to the motor The unit will supplv a fixed amount of power to the drive motor in the speed mode HEART RATE MODE if equipped with optional heart rate kit The user must have the heart rate transmitter and receiver attached in their proper positions for the heart rate to display By pressing ENTER the users heart rate will appear on the display s readout INCLINE o KEY Power up the unit while holding down the INCLINE c key NOTE Do not stand on the striding belt during power up The striding belt will begin to move at 5 mph Grasp the handlebar and begin walking on the striding belt Walk forward taking the smallest steps possible This test will indicate the power draw on the treadmill The average amount is 8 to 12 and will varv according to the technician s weight Excessivelv high numbers indicate a newer non broken in striding belt or a very old worn belt BLANKING MODE The display console is factory set to stay lit when the treadmill is not in use To turn the display console ON or OFF power up the unit while holding down the CLEAR key Repeating this action will act as a toggle between ON and OFF When the BLANKINGi is in the OFF mode the display will read DISPLAY OFF an
38. tness Model 4000 Treadmill THEORV OF OPERATION The operational functions of the Life Fitness Model 4000 Treadmill are accomplished bv four main components the Control Board the Displav Console the Drive Motor and the Lift Actuator The Treadmill user and the control board provide input to the displav console The displav console then determines the appropriate action to be taken and passes low level signals to the control board The control board converts low level signals to high level signals and forwards them to the drive motor and the lift actuator to execute the requested command All of the Intelligence within the Treadmill is located in the display console Control Board The control board provides power for the Treadmill acts as an interface between the displav console drive motor and lift actuator and also acts as an additional interface between the speed sensing and lift limit switches The drive motor trigger lift actuator time and direction and safetv power relav signals are received from the displav console and routed through the control board to execute a command Speed sensing and lift limit signals are also passed through the control board to the displav console Display Console The display console is the user interface that allows selection from the various programs and options offered by the Treadmill The display console provides all of the Intelligence within the Treadmill controls the information displays and monit
39. x zH09 02 L 0000 Z L LO OPHO 10JENJOV WIT 0000 1010 0740 19jjOH Je9H 0000 1 000 0t51V A0bZ ZHOS AOZZ 2000 LG000 0t5IV 1osu s Jeondo 44110 0 ee ce SE ZHO9 A0Z L L000 LG000 0t 1S 000 9201 0 0740 Aiquiessy SAHQ SHOAL Life Fitness Model 4000 Treadmill COMMUNICATING BV FAX If vou would like to submit a parts order or if vou need help troubleshooting a problem we have included for vour convenience a FAX form on the following page Simplv make a copv or copies of the FAX sheet and fill in the necessarv information Vou mav FAX us at any time 24 hours a day to either of the numbers shown A Life Fitness service representative will process your order or respond to your problem as quickly as possible SECTION IV PARTS ORDER IF BOTH SALE PLEASE INDICATE PRODUCT TROUBLESHOOTING warranty S CUSTOMER SUPPORT SERVICES eee METHOD 5 C 1 DAY C 2 DAY C GROUND PARTS ORDER FORM 1 PRODUCT TROUBLESHOOTING PRODUCT NAME SERIAL NO DETAILED DESCRIPTION OF PROBLEM PRODUCT NAME SERIAL NO DETAILED DESCRIPTION OF PROBLEM TIME RECEIVED TIME COMPLETED TECHNICIAN NAME 7223 CUSIOMER SIPPORT SERVICES 10601 W Belmont Ave Franklin ParkIL 60131 PHONE 800 351 3737 Toll Free or 847 451 0036 FAX 800 216 8893 Toll Free or 847 288 3702 Life Fitness Model 4000 Treadmill NO

Life Fitness 4000 User's Manual

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