Page 3 - Life Fitness Model 4000 Treadmill; INTRODUCTION; HOW TO USE THIS SERVICE MANUAL; Section I
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 ServiceManual will instruct and guide you on the quickest, most efficient manner in which to approach the situatio...
Page 4 - FCC Warning - Possible Radio/Television Interference
FCC Warning - Possible Radio/Television Interference NOTE: This equipment has been tested and found to comply with the limits pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. Any changes or mo...
Page 5 - TABLE OF CONTENTS; SECTION I; THEORY OF OPERATION; SECTION II
Life Fitness Model 4000 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........................................................................................................................
Page 6 - Control Board
1 Life Fitness Model 4000 Treadmill THEORY OF OPERATION The operational functions of the Life Fitness Model 4000 Treadmill are accomplished by four main components: the Control Board , the Display Console , the Drive Motor and the Lift Actuator . The Treadmill user and the control board provide inpu...
Page 7 - TROUBLESHOOTING GUIDE; Malfunction; No Power; Insufficient power source
2 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Symptom: NO POWER Malfunction Probable Cause Corrective Action No Power On/off switch Turn unit On. Insufficient power source Plug treadmill into power source with properelectrical requirements. (See Operation Manual) Line cord improperly sea...
Page 8 - Popping sound
3 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Symptom: NOISY TREADMILL Malfunction Probable Cause Corrective Action Rubbing sound frombeneath machine Foreign objects may be stuckunder the machine Inspect underneath Belt and Machine. Removeany debris or accumulation. Rubbing sound fromStr...
Page 9 - Corrective Action; Striding Belt will not move
4 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Symptom: STRIDING BELT Malfunction Probable Cause Corrective Action Striding Belt will not move Insufficient power source Faulty Control Board Plug treadmill into power source with properelectrical requirements. (See OperationManual) Replace ...
Page 10 - Unit Resets Randomly
5 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Symptom: UNIT RESETS RANDOMLY Malfunction Probable Cause Corrective Action Unit Resets Randomly Insufficient Power Source Plug Treadmill into power source with properelectrical requirements. (See OperationalManual) Damaged Line Cord Replace L...
Page 11 - Insufficient power source.
6 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Symptom: DISPLAY DOES NOT ILLUMINATE OR RESPOND TO INPUT Malfunction Probable Cause Corrective Action Display will not illuminatewhen machine is turned on. Insufficient power source. Plug Treadmill into power source with properelectrical requ...
Page 12 - Unit will not elevate
7 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Symptom: UNIT WILL NOT ELEVATE Malfunction Probable Cause Corrective Action Unit will not elevate Line Cord is crossed over liftingassembly Check position of Line Cord placement. Faulty Lift Actuator (limits) Perform Lift Test (See Diagnostic...
Page 13 - START UP; Spike or interruption in power; OVER SPEED; Faulty Control Board
8 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Symptom: ERROR DISPLAY MESSAGES Malfunction Probable Cause Corrective Action ERROR MESSAGES: START UP (Occurs when the StridingBelt, upon start up, will speedup at a high rate) Bad connection to Opto SpeedSensor Check all electrical connectio...
Page 14 - Loose connection at Receiver
9 Life Fitness Model 4000 Treadmill TROUBLESHOOTING GUIDE Symptom: OPTIONAL HEARTRATE KIT DOES NOT RESPOND Malfunction Probable Cause Corrective Action Heart Rate system doesnot respond Heart Rate cable notconnected Check all electrical connections. Loose connection at Receiver Secure connection at ...
Page 16 - DIAGNOSTIC TESTS; Begin with the Treadmill turned; OFF; Continued
1 Life Fitness Model 4000 Treadmill DIAGNOSTIC TESTS This Section describes the test procedures for the Life Fitness 4000 Treadmill Display Console Board including theHeart Rate feature (operational only if equipped with the optional Heart Rate Kit Tray). Diagnostic procedures will test the Display ...
Page 17 - CHECK THE DISPLAY/KEYPAD FUNCTIONS
2 Life Fitness Model 4000 Treadmill DIAGNOSTIC TESTS ( Continued ) The SPEED τ key 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 SP...
Page 18 - ELEVATION TEST/ HOME SWITCH
3 Life Fitness Model 4000 Treadmill DIAGNOSTIC TESTS (Continued) The INCLINE τ key 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 holdi...
Page 19 - Lifestride Model 4000 Treadmill; DIAGNOSTIC MODE ENTRY; NOTE: Do not stand on the striding belt during power up.
4 Lifestride Model 4000 Treadmill DIAGNOSTIC MODE ENTRY (Continued) TO TEST THE ELEVATION : Press the INCLINE σ key to elevate the treadmill. Press the INCLINE τ key to lower the unit. A beeping will occur while the unit is being lowered and the home switch is activated. To completely lower the elev...
Page 20 - Monocolumn
1 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. Step 2 Use a phillips screwdriver to remove the two SCREWS securing the sides of t...
Page 23 - Phillips Screwdriver, hex key wrench set; switch and then unplug the unit from the electrical outlet.
4 Life Fitness Model 4000 Treadmill How To ... REMOVE AND REPLACE THE HANDLEBAR AND HANDRAILS Tools Required: Phillips Screwdriver, hex key 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 DISPLAY CONSOLE. (See “How To.....
Page 24 - DO NOT REPLACE ONE WITHOUT THE OTHER.
5 Life Fitness Model 4000 Treadmill How To ... REMOVE AND REPLACE THE DECK AND STRIDING BELT Tools Required: Phillips Screwdriver, socket set, hex key 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 “H...
Page 25 - Hex key wrench set, phillips screwdriver; A. REPLACING THE STRIDING BELT WITH A NEW STRIDING BELT; REMOVE OR LOOSEN THE FRONT ROLLER.
6 Life Fitness Model 4000 Treadmill How To ... ADJUST AND TENSION THE STRIDING BELT Tools Required: Hex key wrench set, phillips screwdriver A. REPLACING THE STRIDING BELT WITH A NEW STRIDING BELT Step 1 After installing the new STRIDING BELT, but prior to tensioning, place two pieces of tape exactl...
Page 26 - It is; EXTREMELY; An unstable unit may cause Striding Belt misalignment.; Tracking (Centering) an Existing or New Striding Belt; PLUGGED INTO AN ELECTRICAL OUTLET.; right
7 Life Fitness Model 4000 Treadmill How To... ADJUST AND TENSION THE STRIDING BELT (Continued) Tools Required: Hex key wrench set, phillips screwdriver It is EXTREMELY important that the treadmill be correctly leveled prior to any tracking adjustments. An unstable unit may cause Striding Belt misali...
Page 27 - Tensioning an Existing Striding Belt; DO NOT
8 How To... ADJUST AND TENSION THE STRIDING BELT (Continued) Tools Required: Hex key wrench set, phillips screwdriver Step 3 Repeat adjustments until the STRIDING BELT appears centered. Allow the machine to continue running forseveral minutes to observe if the tracking remains stabilized. It is EXTR...
Page 28 - MOUNTING BRACKET TO LOCATE ITS ORIGINAL PLACEMENT.
9 Life Fitness Model 4000 Treadmill How To... REMOVE AND REPLACE THE FRONT ROLLER ASSEMBLY Tools Required: Phillips screwdriver, socket set, hex key 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...
Page 29 - Tools Required
10 Life Fitness Model 4000 Treadmill How To ... REMOVE AND REPLACE THE REAR ROLLER Tools Required Socket and ratchet set, hex key 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 Use a...
Page 30 - HEATSINK CONTROL BOARD ASSEMBLY; Phillips Screwdriver, socket and ratchet set, hex key wrench set; THEM FROM THE CONTROL BOARD.
11 Life Fitness Model 4000 Treadmill How To ... REMOVE AND REPLACE THE HEATSINK CONTROL BOARD ASSEMBLY Tools Required: Phillips Screwdriver, socket and ratchet set, hex key wrench set WARNING: FAILURE TO OBSERVE SAFE PROCEDURES WHEN SERVICING THIS UNIT COULD RESULT IN INJURY FROM ELECTRICAL SHOCK St...
Page 34 - INSIDE OF THE MOUNTING BRACKET TO LOCATE ITS ORIGINAL PLACEMENT.; WITH AN EQUAL ADJUSTMENT TO THE OTHER SIDE OF THE REAR ROLLER TO
15 Life Fitness Model 4000 Treadmill How To ... REMOVE AND REPLACE THE DRIVE MOTOR BELT Tools Required: Phillips screwdriver, socket and ratchet set, hex key 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. (...
Page 35 - CHECKING THE DRIVE BELT PULLEY ALIGNMENT:
16 How To ... REMOVE AND REPLACE THE DRIVE MOTOR BELT ( Continued ) Step 5 Lift the 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 FRONTROLLER PULLEYS. Step 6 Position a ne...
Page 36 - Phillips screwdriver, socket and ratchet set, hex key wrench set
17 Life Fitness Model 4000 Treadmill How To ... REMOVE AND REPLACE DRIVE MOTOR Tools Required: Phillips screwdriver, socket and ratchet set, hex key 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 ...
Page 38 - switch
19 Life Fitness Model 4000 Treadmill How To ... REMOVE AND REPLACE THE LIFESPRINGS Tools Required: Phillips screwdriver, socket and ratchet set, hex key wrench set Step 1 Turn the power OFF at the on/off switch and then unplug the unit from theelectrical outlet. Step 2 Remove the MOTOR COVER.(See “H...
Page 39 - Phillips screwdriver
20 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 atthe electrical outlet. Step 2 Remove the two SCREWS located on theunderside of the TRAY which are securing t...
Page 41 - WIRING DIAGRAM
1 Life Fitness Model 4000 Treadmill WIRING DIAGRAM Life Fitness Model 4000 Treadmill
Page 42 - PARTS IDENTIFICATION
2 PARTS IDENTIFICATION SN # 558000 - UP Leg Leveler0017-00009-0796 WheelOK40-01021-0000 Motor ShroudAK40-00037-0002 Console AssemblyAK40-00057-0001(R) Eng/Met AK40-00057-0004(R) Frn/Met Overlay BezelAK40-00058-0001 Eng/EngAK40-00058-0004 Frn/Met Handlebar w/GripsOK40-01092-0001 Handrail TubeOK40-010...
Page 45 - COMMUNICATING BY FAX
5 Life Fitness Model 4000 Treadmill COMMUNICATING BY FAX If you would like to submit a parts order, or if you need helptroubleshooting a problem, we have included, for your convenience,a FAX form on the following page. Simply make a copy (or copies) ofthe FAX sheet and fill in the necessary informat...
Page 46 - PARTS ORDER; PRODUCT TROUBLESHOOTING; PRODUCT TROUBLESHOOTING; CUSTOMER SUPPORT SERVICES
6 CUSTOMER SUPPORT SERVICES PARTS ORDER ( IF BOTH SALE PLEASE INDICATE ) PRODUCT TROUBLESHOOTING WARRANTY NAME: CUSTOMER NO: DATE: PHONE: FAX: CONTACT NAME: METHOD OF SHIPMENT: 1 DAY 2 DAY GROUND PARTS ORDER FORM ITEM NO. PART NUMBER DESCRIPTION QUANTITY 1 2 3 4 5 6 PRODUCT TROUBLESHOOTING PRODUCT N...
