111 Canfield Avenue • Randolph, New Jersey 07869 • 1-800-LANDICE • FAX 973-927-0630 8700-Series Home and Commercial Treadmill Diagnostic and Service Manual 2001 This guide covers all 8700 series treadmills manufactured from 1993 – 2000. HOME TREADMILLS – 8700 SPRINT 1-4 / PRG / SST NOTE: Early HOME treadmills listed as: 8700R & 8700P are the same as the LTD models. The only difference was the warranty coverage.
Service Manual Ver M/C.
How to Use this Manual This manual is designed to help service technicians in the installation, maintenance, or repair of Landice 8700 model treadmills. It covers terminology, installation, tools needed, diagnostics, removal and replacement of parts, estimated time of repairs, warranty forms, wiring schematics, and recommended maintenance. If you find a problem not covered in this manual please call 1-800LANDICE to talk to a Landice Service Technician.
Landice Warranty and Policies PARTS Our policy requires that all defective parts be returned to Landice. All warranty parts will be billed to the dealer at dealer cost. Landice will credit this invoice upon receipt of defective parts. Landice will pay the freight to send out any defective parts. It is the dealer's responsibility to pay the freight to return the defective parts to Landice. If the defective parts are not returned within 30 days, payment of invoice is expected in full.
September 1, 2001 Treadmill Warranty Summary Landice Factory Warranty Summary Home Treadmills 07-15-1998 07-15-1996 07-15-1993 Lifetime Frame Lifetime Frame Lifetime Frame 5 Year Parts 3 Year Parts 2 Year Parts 1 Year Labor 1 Year Labor 1 Year Labor 8700LTD Limited Institutional Use Treadmills (120VAC) (In applications with under 5 hours usage per day) 09-01-1996 09-01-1993 3 Years Parts 1 Year Parts 1 Year Labor 1 Year Labor 8700 CLUB Treadmills (220VAC) 11-15-1996 11-15-1993 (Scheduled mainte
Recommended tools for servicing Landice treadmills 1. Deep socket set 3/8 drive with ratchet and extension: Must have 3/8, 7/16, 1 /2, 5/16, 9/16 socket. 2. Combination wrench set: Must have 3/8, 7/16, 1 /2, 5/16, 9/16 3. #1, 2, and 3 Philips head screwdriver (or electric screwdriver) 4. #1, 2, and 3 flat head screwdriver (or electric screwdriver) 5. Socket head cap screw wrench set/ multi Allen Wrench 6. Rubber mallet 7. Diagonal cutting pliers 8. Wire stripper 9. Wire crimping tool 10.
Important Operating Safety Instructions WARNING: Failure to observe the following operating instructions can result in serious injury! 1 If you are suffering from any illness, condition, or disability which affects your ability to run, walk or exercise, do not use this product without consulting your doctor first. 2 If you are suffering from any illness, condition, or disability which affects your ability to run, walk or exercise, do not use this product without supervision present.
DANGER To reduce the risk of electric shock, always unplug the treadmill from the electrical outlet immediately after using. Always unplug the treadmill before cleaning or removing the motor cover. WARNING To reduce the risk of burns, fire, electric shock, or injury to persons: 1 2 3 4 Treadmill should never be left unattended when plugged in. Unplug from outlet when not in use. Close supervision is necessary when this unit is used by or near children or disabled persons.
200 - 250 Volt Treadmills (15 Amp dedicated line) Treadmills marked 200-250 VAC are intended for use on a circuit having a nominal rating more than 120V and are factory-equipped with a specific cord and plug to permit connection to a proper electric circuit. Make sure the product is connected to an outlet having the same configuration as the plug. No adapter should be used with this product.
8700 Standard Membrane Models That Used This Membrane: 8700, 8700-R, 8700-LTD, 8700-LTD-VFX, 8700-CLUB, 8700-CLUB-VFX Production Time Frame: 1991-1999 Electronics: Standard 110V SCR (220V SCR for CLUB units), commercial motor pan. See Wiring Diagram. Settings Used In: Home and Commercial (LTD’s and CLUB’s) Key Features: Closed Loop Treadmill (w/ speed sensor), Safety Lanyard, 0.
8700 EP/PT Membrane Models That Used This Membrane: 8700EP, 8700-PT Production Time Frame: 1991-1993 Electronics: Standard 110V SCR (220V SCR for CLUB units), commercial motor pan. See Wiring Diagram. Settings Used In: Home and Commercial Key Features: Closed Loop Treadmill (w/ Speed sensor) Safety Lanyard, 0.5-11.0MPH Push Button Speed and Elevation Control, 10 Built In Programs, 4 User Programs, Wireless Heart Rate Control (Optional), LED Graphic Display.
8700 PT2 Membrane Models That Used This Membrane: 8700-PT2, 8700-CLUB-PT2 Production Time Frame: 1994-1998 Electronics: Standard 110V SCR (220V SCR for CLUB units), commercial motor pan. See Wiring Diagram. Settings Used In: Home and Commercial Key Features: Closed Loop Treadmill (w/ Speed sensor) Safety Lanyard, 0.5-11.0MPH Push Button Speed and Elevation Control, 9 Built In Programs, 4 User Programs, Wireless Heart Rate Control, SONAR ranging capability (Optional), LED Graphic Display.
8700 Programmable Membrane Models That Used This Membrane: 8700-PRG, 8700-PRG-VFX, 8700-CLUB-PRG Production Time Frame: 1996-1999 Electronics: 8700-PRG used Sprint-3 electronics, 8700-PRG-VFX used Sprint-4 electronics, 8700-CLUB-PRG used 220V PWM commercial motor pan. See Wiring Diagrams. Settings Used In: Home and Commercial (LTD’s and CLUB’s) Key Features: Closed Loop Treadmill (w/ speed sensor), Safety Lanyard, 0.5-12MPH Push Button Speed and Elevation Control, 4 Built In Programs, 2 User Programs.
Section 3 – Parts Identification M odel8700 Treadm illParts Item Treadbelt Treadbelt-XL SliderD eck (N on-VFX) SliderD eck - XL (N on-VFX) VFX Deck VFX Deck Spacer VFX D eck Slat VFX D eck Post VFX D eck Load W asher VFX Deck,FletW asher VFX D eck,Im pactAdjuster Drive M otor, 3 H P,110V Flyw heel M otorBracket Tension Screw M etalSpacer RubberSpacer H itch Pin Drive Belt M otorBrush, 110V M otor Brush H older M otorBrush Cap Foam Block Elevation Assem bly Elevation M otor,110V Elevation Potentiom eter
M em brane Panel-SPRINT3/4 M em brane Panel-8700PR G M em brane Panel-SST M em brane Panel- NM A (C RT,PRT) Velcro C ircle Velcro Strip D rive R ollerAssem bly Sheave,FrtR oller Take Up R ollerAssem bly DC Transform er,9V 110V ControlPanelFram e C ontrolPanelW /SonarHole BracketSonar Upright,Left U pright,R ight StablizerPlate C ontrolPanelEnd C ap,R ight ControlPanelEnd Cap ,Left Fram e R ail,Left Fram e R ail,R ight D ecal,Fram e,R ight Decale,Fram e,Left Side Fram eTop C over H arness,SPRIN T4 Upper H
W ireless Pulse O ption "Pulse Kit" Extender Kit R eceiver Kit Pulse Belt/Transm itter Pulse Receiver ExtenderC able RightAngle Adapter Isolation Leakage O ption Isolation Leakage O ption D ealerInstalled Traction Strip Cover,Side Fram e SIDE FR AM E XL Side R ail R ailClam p Cross Bar Cross Bar Foam H ardw are Kit M edicalR ail Foam M edical& R unners R ail Installation Charge,O ptionalRails 71017 M ISC 70074/M ISC 70072/70073 70074 71009 71010 M ISC M ISC 70005 70017 70052 70021 70051 1858 71020 70135
8700 COMERCIAL MOTOR PAN COMPONENTS
8700 COMMERCIAL LOWER WIRING SCHEMATIC
LED (light emitting diode) configurations: SCR lower board The SCR lower board is designed with diagnostic LED lights. The LED’s are color coded according to their specific function. Green indicates a properly operating treadmill; the green lights should always be ON when power is supplied to the treadmill. Yellow indicates a treadmill function. Red indicates a treadmill malfunction.
C. LIM (red) – The C.LIM or Current Limit LED should NEVER come on. This diagnostic light is used to determine the condition of the treadbelt and deck. The SCR board has a built-in amp meter. When the treadbelt belt and deck system wears, the amperage will increase. When this amperage reaches its max limit, the lower board will shut down its power (treadbelt will slow down / low torque) to the drive motor and the C.LIM LED will illuminate.
8700 HOME SST VFX, PRG VFX, SPRINT VFX CLOSED LOOP (SPEED SENSOR)
8700 SST, PRG and SPRINT VFX TREADMILL All VFX treadmills utilize CLOSED LOOP speed control. All treadmills listed as VFX in the warranty database use a speed sensor.
LED LIGHTS ON PWM The PWM lower board is designed with two diagnostic LED lights. The LED’s are color coded according to their specific function. LED 1 (red) – This indicates a high current draw similar to the C.LIM LED on our SCR lower control board. LED 1 will only light if there is high current being used due to a possible worn out treadbelt and deck system or it can also light if the IR pot is out of adjustment. The IR pot controls how the PWM board reacts to varying loads (users’ weights).
LED (light emitting diode) configurations: RELAY BOARD The RELAY board is designed with diagnostic LED lights. The LED’s are color coded according to their specific function. Green indicates a properly operating treadmill; the green lights should always be ON when power is supplied to the treadmill. Yellow indicates a treadmill function. Red indicates a treadmill malfunction.
8700 SST, PRG and SPRINT 3, NON VFX TREADMILL All NON VFX treadmills utilize OPEN LOOP speed control and no relay boards.
8700 SPRINT 2 Safety lanyard, speed control dial (not push button), KBWT-110 SCR motor control
8700 SPRINT 1 – LOWER WIRING SCHEMATIC NO safety key, speed control dial (not push button), KBLC-118 Motor Control Board
8700 SPRINT 1&2 UPPER WIRING SCHEMATIC
Section 4- Servicing Landice Treadmills 29 Definitions 12 VDC POWER SUPPLY (Transformer) This transformer converts AC power to DC power. It provides low voltage current for the upper display board. This component is found on treadmills with PWM motor control boards. It is incorporated into the SCR motor control boards. CAPACITOR Stores energy to smooth out voltage to drive motor. Used with SCR motor control boards. CHOKE (Inductor) Acts like a filter to smooth out voltage to drive motor.
SIDE FRAME COVERS These sit on top of the frame rails and keep deck in place. They also form the base for the traction strip. IR POTENTIOMETER The IR Pot is located on the PWM motor control board and is used to adjust the time it takes the PWM to react to a load or amperage spike. It normally requires adjustment if the motor feels like its surging. MEMBRANE PANEL This takes information from the display membrane keys and transmits it to upper display board via the ribbon cable.
TREADBELT This is the surface the user walks on. It rides over the deck and rollers. UPPER DISPLAY BOARD This controls information from the Membrane panel and Face Plate. It then transmits it to the relay board on Home models and the SCR on Club or LTD models. UPRIGHTS One on either side, they house the wire harness, the upper display, the cross member and the handrails. UPPER WIRE HARNESS Transmits data from lower electronics to upper electronics. VFX SYSTEM Shock-absorbing Deck.
Testing Components 12 VDC POWER SUPPLY Measure across the input terminals for AC line voltage (120/220VAC). Measure across the output wires for DC voltage (9.0VDC to 18.0VDC is acceptable). If you confirm proper input voltage (AC) and have no output voltage (DC) the DC power supply must be replaced. Drive Motor: Generation Test – all Landice drive motors (110 & 220) are direct current or DC. A DC drive motor can produce (generate) a DC voltage when it’s manually rotated.
ELEVATION MOTOR Using your voltmeter measure the input voltage (AC) to the elevation motor. Secure the black (negative) meter probe to a good chassis ground. Place the red meter probe on the RED wire in the elevation harness. Press the elevation DOWN key and you should get 120 /220VAC. Place the red meter probe on the BLACK wire in the elevation harness. Press the elevation UP key and you should get 120/220VAC. If the elevation motor is getting the proper AC voltage in but does not turn, replace it.
terminals with your voltmeter. You should measure 120/220VAC across these terminals. The DC voltage comes out of the SCR board (going to the drive motor) across two output terminals marked MTR+ and MTR-. Confirm DC voltage out by measuring across these two terminals with your voltmeter. You should measure 90/180VDC output. If the SCR board is getting the proper AC voltage in but does not supply any DC voltage out, it must be replaced. RELAY BOARD The relay board runs on AC voltage.
Common Symptoms Symptom: Treadbelt feels like it’s slipping or grabbing when walked on. Possible Cause: Loose drive belt or treadbelt. Adjust as per manual. Remember to adjust only till slipping stops. DO NOT OVERTIGHTEN Possible Cause: Worn treadbelt and/or deck. If treadbelt or deck is worn it will cause excessive friction and the user will feel like belt is slipping or grabbing. 1. Reach hand under front of treadbelt and see if deck feels rough, grooved, or if you see bare wood.
5. Tighten drive roller until star washer bites into aluminum frame, start treadmill, and adjust tracking. If belt is straight then put on motor cover. If belt is still not straight, go to #6. 6. If there is improvement and there is still room to move drive roller adjustment bolt, continue to adjust until fixed. 7.
IR POTENTIOMETER ADJUSTMENTS, PWM ONLY: IR = I (amperage) R (resistance) The IR potentiometer that is located next to the MAX speed potentiometer on the PWM motor control board is used to adjust the time it takes the pwm to react to a load or amperage spike. When the user steps onto the treadbelt a load is introduced to the system which creates an amperage spike. The pwm board senses this amperage spike and reacts by feeding more power to the drive motor.
Speed Calibration: SPRINT 4/PRG/SST CLOSED LOOP (speed sensor) 1. Enter the O.L.S. Mode (Open Loop Speed) by pressing “FAST” and “START” simultaneously. 2. Adjust the max speed first. Bring the set speed to 12mph. Let actual speed stabilize. 3. Adjust the MAX potentiometer on the pwm motor control board accordingly. CW = increase speed / CCW = decrease speed. The actual speed will be displayed in the center display window. 4. Decrease set speed to 1.0mph. Let actual speed stabilize.
Removal and Replacement of Components 1. Before beginning any removal or replacement of components unplug power cord from wall. 2. Make a note of serial number, model (L7, L8, Home, LTD, or Club) and type (Sport, Pro, Cardio, CRT, or Executive). Landice tracks all information from this serial number and it must be given when requesting parts or technical assistance. 3. Always remove one component at a time to test for problems and to simplify replacement. POWER CORD (LINE CORD) 1. Unplug from wall.
12 VDC TRANSFORMER REPLACEMENT (HOME TREADMILLS ONLY) Observe the proper polarity when installing a new DC power transformer. Catastrophic damage can occur to the upper display board electronics if the DC polarity is reversed. 1. If your DC transformer has color coded fast-on (push on) connectors: Blue - negative (-) Red - positive (+) 2. If your DC transformer has non color coded fast-on (push on) connectors: Black Wire (smooth) - negative (-) Black Wire (ribbed) - positive (+) 3.
MEMBRANE PANEL 1. Remove control panel end caps from upright assembly. 2. Remove membrane panel and display board assembly by releasing Velcro. 3. Disconnect upper wire harness from display board. 4. Remove screws securing display to membrane panel. 5. Install new membrane panel. FACE PLATE (Replaces membrane panel on SPRINT 3 ONLY) 1. Remove control panel end caps from upright assembly. 2. Remove faceplate panel and display board assembly by releasing Velcro. 3.
ELEVATION MOTOR 1. Remove Elevation Motor. A. Remove all weight from the elevation assembly by placing a suitably strong object under the under motor pan (toolbox) so that the wheels are in the air. B. Disconnect elevation motor harness from lower board or lower harness. C. Disconnect the elevation motor nut from the elevation assembly. To do this, loosen the two (2) ¼-20 screws and slide two (2) ¼” diameter pins out. (Step 1C) D.
ELEVATION POTENTIOMETER P/N #71013 ELEVATION MOTOR P/N #70088 110volt P/N #70126 220volt ADJUSTMENT SHAFT ELEVATION NUT NOTE: ELONGATED BRACKET HOLES ARE FOR POTENTIOMETER FINE ADJUSTMENT. To Enter Diagnostic Mode: Turn off the treadmill. SPRINT-1 & 2 (Press DISPLAY & turn Knob to the ON position simultaneously) SPRINT-3 & 4 (Press DISPLAY & START simultaneously) SST & PRG (Press UP & START simultaneously) CLUB & LTD (Press DISPLAY & START simultaneously) To calibrate the potentiometer 1.
ELEVATION LEG ASSEMBLY 1. Remove plastic motor cover. 2. Remove set screws (2) holding elevation motor to elevation leg assembly. 3. Remove elevation pins from elevation gear nut. 4. Carefully turn treadmill onto its side to gain access to elevation leg mounting brackets. 5. Remove screws from mounting brackets (2 on each side) and remove leg assembly. Note: On re-assembly be sure to lubricate brackets with grease. 6. Reverse to install. TREADBELT UNPLUG TREADMILL! 1. Remove rear roller.
Drive Roller/Front Roller 1. Release all treadbelt tension. 9/16" bolts on rear roller. 2. Remove drive belt from drive motor. Release tension on drive motor tensioning hook (7/16" nut located underside of motor pan). Pivot motor towards treadbelt and slide drive-belt off. 3. Remove (2) Philips Head or (2) Hex Head screws securing drive roller to treadmill frame. 4. Remove roller. 5.
NOISES Many times a treadmill will tell you what’s wrong with it by the noises it makes. We strongly recommend the use of an automotive stethoscope. Service Tip: Treadmill making noise but can’t tell from where. Solution: Must isolate all moving parts. 1) Unplug treadmill. 2) Disconnect Drive Belt. 3) Turn treadmill on, listen for noise. a)If noise is not present proceed to next step. b)If noise is present, drive motor must be source. 4) *Reconnect the Drive Belt and loosen the Treadbelt completely.
6. Is there excess Slip Cote? If you see Slip Cote oozing from sides of belt or off end of deck remove belt and wipe down deck, belt, and rollers. 7. Is it a commercial treadmill? Landice uses a stiffer belt on Club models to increase treadbelt life. These stiffer belts make more noise and are considered normal. 8. On older machines check that the Treadbelt and deck are not worn excessively and making noise. We recommend the replacement of both deck and belt if either is worn. 9.
Visual Clues The following is a breakdown of things to look for when troubleshooting these components. Decks- Check for wood showing through black phenolic. Check for ridges or cupping of deck especially in front middle of deck. Both of these indicate that deck should be replaced or reversed if other side is unused. Drive Motors1. Motor Brushesa. Are they worn past ½”? If so, replace brushes. b.
Voltage Tests Variance in voltage affects treadmill performance. Here is how to trace the voltage into and out of the 8700 series treadmill. Confirm incoming voltage: 120/220 VAC where the line cord attaches to treadmill. It could be; relay board, lower SCR board, terminal block or lower harness. Confirm 12-17 VDC (plug into outlet) output voltage from DC transformer (HOME MILLS ONLY) Confirm 12-17 VDC between Black and Green wires on main wire harness.
Diagnostic Guide Error Codes LS or L5- Loss of signal. See Flowchart for LS pages 55,56,62,63 OS or O5- An OS or 05 error indicates a treadmill Over Speed condition. This occurs when the actual treadbelt speed is faster than the desired selected speed. There is a potential for this to occur under the following circumstances: 1. User weight is over 200 lbs., treadmill elevation is set between 10% and 15% grade, and selected speed is set between .5mph and 3.0mph. 2.
8700 Series Treadmill Diagnostic Troubleshooting Guide 8700 8700 LTD CLUB
Configuration Mode STEP 1) Turn machine off, press "UP" and "START" at the same time, and let go. STEP 2) To select between English (mph) and Metric (kph) units, press the "DISPLAY" button. To enable/disable the pulse option, press "PAUSE". The pulse LED will light when enabled.(*Must purchase Wireless Pulse Option #71017) The left hand digit in the speed window should display "I" ( your programs will not work if it reads "P") Change the "P" to "I" by pressing the "FAST" button.
TREADMILL MAINTENANCE TREADBELT TRACKING, TENSIONING AND MAINTENANCE DANGER !! Lethal voltages and moving parts capable of causing serious injury are exposed when the drive housing cover is removed. Under no circumstances should drive housing cover be removed except by a Landice factory authorized technician or under supervision of a Landice technical representative. TREADBELT TRACKING The treadbelt is TRACKED by means of two adjustment bolts (9/16" wrench) located at rear of treadmill.
Upper display fails to light when START is pressed. 4.1 4.2 Plug Treadmill into wall outlet. Is green +12V lamp on the motor control board lit? NO YES 1. No power from outlet. 2. Loose wire from line cord to motor control board. 3. Blown SLOW-BLOW fuse on motor control board. Part # MDA-20 (110V), MDA-15 (220V) 4. Failed motor control board. Part # 70080 (110V), 70081 (220V) 4.3 Press START button on membrane panel. 4.4 Is green +5V lamp on the motor control board lit? NO 1.
Display lights up; TREADBELT DOES NOT MOVE “L5 / LS ERROR” 5.1 Plug Treadmill into wall outlet and press START. 5.2 Is red SERIAL lamp on the motor control board lit? YES 1. Check wiring harness connection between upper and lower board. Part # 70083 2. Replace display board. Part # 70076 NO 5.3 Enter Open Loop Speed mode: WARNING: NEVER STAND ON THE TREADBELT IN THIS MODE. 1. Turn off the treadmill. 2. Press FAST and START simultaneously and release both buttons once the display lights up. 3.
Display lights up, treadmill moves; speed will not increase; "L5" error. 6.1 Press START button. 6.2 Is yellow SPD lamp on the motor control board lit? 1. Disconnect the speed sensor from the motor control board. 2. Is the yellow SPD lamp on the motor control board still lit? YES NO NO 6.3 Replace motor control board. Part # 70080 (110V), 70081 (220V) Is speed sensor aligned squarely and within a credit card's thickness from the flywheel? YES 6.4 1. Check speed sensor wires. 2.
Display lights up; fails to respond to other buttons. 7.1 Place the treadmill in Diagnostic Mode: 1. Remove the saftey lanyard. 2. Turnoff the treadmill. 3. Hold the DISPLAY and START key simultaneously and then release them as soon as the display lights up. Do all the lights flash on, then off, and then show "PASS" on the display? YES NO 7.2 Press each button one at a time. Confirm that the appropriate code is shown on the display for each button.
Elevation system failure; "PO" error. 8.1 Place the treadmill in Diagnostic Mode: 1. Remove the saftey lanyard. 2. Turnoff the treadmill. 3. Hold the DISPLAY and START key simultaneously and then release them as soon as the display lights up. YES Is the red GRADE lamp on the motor control board lit? Grade pot out of calibration or failed. Recalibrate pot. Go to page 9. P/N 71013 NO 8.
ELEVATION POTENTIOMETER CALIBRATION ELE VA T IO N PO T E N T IO ME TE R P/N #7 1013 E LEVA TIO N MO TO R P/N # 70088 11 0vo lt P/N # 70126 22 0vo lt AD JU S T M E N T SH AF T E L EVAT I O N N U T N O T E: ELO N G A TED BR AC KET HO LES AR E FO R PO T EN T IO M ET E R F IN E AD J US TM E N T . Enter Diagnostic Mode: 1. Press OFF to turn treadmill off. 2. Hold START and DISPLAY at the same time, then release the buttons when the treadmill lights up. Calibrate the elevation potentiometer: 1.
8700 Series HOME Treadmill Diagnostic Troubleshooting Guide 8700 SPRINT 4 –VFX (S/N 7-36898 AND UP) 8700 SST – VFX (S/N 7-43807 AND UP) 8700 PRG – VFX (S/N 7-43825 AND UP)
SYMPTOM Upper display board fails to light when START is pressed. 4.1 Is the AC PWR light on the relay board lit? NO YES 4.2 Is the VDC light on the relay board lit? NO YES 1.Plug a lamp into the wall outlet to confirm it is live. 2.Check line cord condition and connections. 3.Unplug treadmill and use a multimeter to check the fuse. If it is bad, swap with a spare MDA-20 fuse. 4.Plug in treadmill and use a multimeter to check for 120VAC across HOT and NEUT terminals of relay board. 1.
SYMPTOM Display lights up, treadbelt moves,speed will not increase,L5 error. 5.1 Check speed sensor alignment. It should be within 1/16" of the flywheel and parallel to the flywheel. Is it out of position? YES Adjust speed sensor: 1.Use 1/2" wrench and loosen the two lock nuts securing sensor to it's bracket. 2. Adjust sensor gap to 1/16". 3. Tighten lock nuts. YES Repair or replace speed sensor / harness assembly. Part# 71007 YES Repair or replace upper harness. Part# 70211 NO 5.
SYMPTOM Display lights up,treadbelt does not move,L5 error. 6.1 1.Press FAST & START simultaneously. 2.Press FAST until 2.0mph is displayed. Does the four digit display window read SAFE? YES Attach the safety lanyard. NO 6.2 Is the green LED2 light on the pwm motor control board lit? NO Is the green BELTSW light on the relay board lit? NO 1. Check blue (L1) and white (L2) wires from relay board to motor YES control board. 2. Replace relay board. Part #70213 YES 1.
SYMPTOM Elevation system not functioning or PO (Pot Out) error code displayed in the two digit speed window. 7.1 Enter the DIAGNOSTIC MODE. (See pages 12, 13, or 14) Does the elevation system work properly? Proceed with recalibrating elevation potentiometer, page 8. YES NO Unplug 6 pin elevation motor connector from relay board. Which button or direction seems to have the problem? UP 7.2 DOWN Hold the DOWN button on the treadmill.
ELEVATION POTENTIOMETER CALIBRATION ELEVATION POTENTIOMETER P/N #71013 ELEVATION MOTOR P/N #70088 110volt P/N #70126 220volt ADJUSTMENT SHAFT ELEVATION NUT NOTE: ELONGATED BRACKET HOLES ARE FOR POTENTIOMETER FINE ADJUSTMENT. Enter Diagnostic Mode: 2. Power up treadmill in Diagnostic Mode: Sprint – Press DISPLAY & START simultaneously. SST & PRG – Press MANUAL & START simultaneously. Calibrate the elevation potentiometer: 1. Visually confirm treadmill is level. (0% grade) 2.
8700 Series HOME Treadmill Diagnostic Troubleshooting Guide 8700 SPRINT 3 8700 PRG 8700 SST
"8700 Sprint 3" Treadmill Display Board - New Design The 8700 Sprint 3 will consist of a new display board mounted in the upright. It will communicate to the high power relays and KBWT motor control board located at the bottom of the treadmill via 12-conductor, 22-gage cable. Motor Control: A DC motor mounted in the lower motor pan shall be controlled by an "off the shelf" motor controller manufactured by KB electronics - specifically KBWT-110.
Reed Switch A read switch mounted on the display board shall be used to detect the presence of a magnet attached to a safety lanyard. In the event the magnet is removed. The four-digit display shall read "SAFE" and power to be removed from all relays. Mechanical Buttons.
8700 Series HOME Treadmill Diagnostic Troubleshooting Guide 8700 8700 SPRINT 1 SPRINT 2
SYMPTOM Upper Display does not light up. Check position of Safety Key.* YES Check for 120 VAC between points 13 and 14 on terminal block. YES NO AC 1. Check fuse on motor control board, replace if necessary A. Check 20 amp in-line fuse (Mounted to motor pan) * 2. Check for loose connections on terminal block,damaged line cord or wall outlet for voltage. Check for 9 VDC between points NO 5 and 6 on terminal block. 6 and 7 on terminal block.
* Applies to Sprint 2 Only. SYMPTOM Display erratic; speed and elevation controls work. Does the display function normally, except for an incorrect (or unchanging) YES Re - calibrate elevation potentiometer according to the instructions in appendix 2. If the potentiometer cannot be re - calibrated, replace the pot. (#71013) YES Check display button, located on upper display, for operation. Make sure it has unobstructed movement.
SYMPTOM Display lights up,treadbelt does not turn. Does the relay "click" when 1. Check On / Off switch on speed control panel. NO the treadmill is switched on? YES 2. Check wiring between On / Off switch and relay(wiring harness) 3. Replace relay. Check for 120 VAC between L1 and L2 terminals on the motor control board. YES Disconnect the P1, P2 and P3 wires from the motor control board.Check between P1 and P3 for 5000 ohms resistance.
YES 1. Check wiring between motor control board,filter choke and drive motor. 2. Check for broken choke or shorted capacitor. 3. Check voltage going to motor directly at points 3 and 4 on terminal block. Check voltage output on the KB-TSM at points A+ and A-. If motor has input voltage but does not turn, Check brushes / replace motor. ( Drive Motor #70014) *Applies to Sprint 2 Only.
2. 120 VAC between (yellow) and (white) wires when the "DOWN"switch is engaged,and 0 VAC when the switch is disengaged. YES NO incorr ect readin gs Replace elevation motor. 1. check elevation switch for continuity. 2. check wiring.
MAX MIN IR CL STEP 2: Turn machine on, increase speed until 1.2 mph shows on display, then slowly decrease speed just until the display shows exactly 1.0 mph. STEP 3: Adjust "MIN" pot on KBLC-118 until belt speed is between 0.95 - 1.00 mph using a tachometer OR 8.8 - 9.3 rpm counting belt revolutions. STEP 4: Turn speed up to 8.8 mph ( on display ), then slowly increase speed just until display shows exactly 9.0 mph. STEP 5: Adjust "MAX" pot on the KBLC-118 until the belt speed is between 8.95 - 9.
Display” button to switch the treadmill on. Use the "SELECT DISPLAY" button to switch into elevation mode (both the "TIME" and "DISTANCE" LED’s will be lit). STEP 3: Lower the treadmill until it is level (o% elevation). STEP 4: Turn the elevation potentiometer until "168" (* 153 Sprint 2) shows in the display.
maintenance of their treadmills. The following illustrates how to tension the Treadbelt and Drive Belt. Check Drive Belt tension Drive Belts are pretensioned before the treadmill leaves the factory. Adjustments are ONLY necessary when Drive Belt is slipping during use. To test for tightness: 1. Remove motor cover. 2. With mill running at 2mph walk on treadbelt. 3. If Drive Belt is moving front roller with no slippage then drive belt is correctly tensioned.
speeds (2-3 mph) until you are comfortable making adjustments. Faster speeds will cause the adjustments to take effect quicker (5-6 mph). 78 Example: Treadbelt tracks to the right: a. Turn treadmill on, and bring speed up to 4.0 mph. b. Using a 9/16" wrench, tighten the right-hand adjustment bolt 1/4" turn. c. Loosen the left-hand adjustment bolt 1/4" turn. d. Let Treadbelt stabilize (rotate for 30 seconds) and readjust if necessary.
Commercial Treadmills Once a week 1. Wipe down display with soft cotton cloth and mild soap and water. Cloth should be damp not wet. Once a week or as needed. 2. Wipe down handrails and traction strips with soft cotton cloth and mild soap and water. Cloth should be damp not wet. Once a week or as needed. 3. Vacuum or wipe down the Deck area between treadbelt and frame. Once a week. Once a Month 1. Take off Motor cover and vacuum. 2. Slide clean towel under Treadbelt and wipe deck and under the belt.
brush to remove dirt trapped in treadbelt surface. A damp (not wet!) sponge can be used to finish the cleaning process. Institutional drive motor maintenance Yearly Institutional Maintenance: Replace the Drive Motor Brushes. Failure to do so will result in premature Drive Motor failure. 1. Unplug Treadmill. 2. Remove Motor Brush caps (2). 3. Remove Motor Brushes and inspect. They should be replaced if 1/4 inch or less.
5V LED Definition Picture Troubleshooting 20 18 54 12 VDC Power Supply Definition Picture Removal/Replacement Troubleshooting Testing 29 21-22 40 61 32, 49, 70 Capacitor Definition Picture Removal/Replacement Troubleshooting Wiring CE Error Code 29 17-18 39 55 18 50 Choke (Inductor) Definition Picture Removal/Replacement Troubleshooting Wiring 29 17-18 39 55 18 Components Definitions Parts list Testing 29-31 14-16 32-34 Definition Removal/Replacement 29 44 Deck Display Panels 10-13 Drive
Picture(Motor Pan) Removal/Replacement Testing Troubleshooting 17, 21 41 32 47-48 Drive Motor Brushes Maintenance Removal/Replacement Troubleshooting 32 41 35, 36, 47, 55, 63 Drive Roller w/Sheave Definition Removal/Replacement Troubleshooting 29 45 35, 46, 77 Elevation Leg Assembly Definition Picture Removal/Replacement 29 42 44 Elevation Motor Calibration Definition Picture Removal/Replacement Testing Troubleshooting Wiring 43, 59, 64, 65 29 17, 21, 42, 43, 42 33 20, 47, 48, 58, 73, 75 18, 22 El
Fuses 54, 61, 70 IR Potentiometer Definition Adjustments Troubleshooting L5 (LS) Error Code Troubleshooting 30, 37 37, 74 36 50 55, 56, 62, 63 LED LIGHTS SCR PWM RELAY Maintenance 19-20 23 24 53, 78, 79 Membrane Panel Definition Picture Removal/Replacement Testing Troubleshooting 30 10, 11, 12, 13 41 33 57 Noises 46-48 O5 (OS) Error Code 50 Parts List 14-16 PO Error Code 20, 33, 50 Power Cord (Line Cord) Removal/Replacement Troubleshooting 39 36, 49 PWM Motor Control Board Definition
Testing Troubleshooting Wiring 34 24, 61, 63 22 Safety Lanyard Definition Troubleshooting 30 52, 57, 68, 70 SCR Motor Control Board Definition LED Lights Picture Removal/Replacement Testing Troubleshooting Wiring 30 19-20 17 39 33-34 54, 55, 56, 58 18 SlipCote Lubricant Definition Use Troubleshooting Speed Calibration 30 78-79 46 38 Speed Sensor Definition Picture Testing Troubleshooting Wiring 30 17, 21 34 50, 56, 62, 67 18, 22 Take Up Roller Definition Removal/Replacement Troubleshooting 30 44
Testing 34 Uprights (Frame) Definition 31 Upper Wire Harness Definition Troubleshooting 31 49, 54, 61, 70 Voltage Specifications Testing 7-9 49 85