CYBEX 900T Service Manual Download

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Summary of Contents for 900T

Page 1: ...presentations or warranties regarding the contents of this manual We reserve the right to revise this document at any time or to make changes to the product described within it without notice or obligation to notify any person of such revisions or changes 2001 Cybex International Inc All rights reserved Printed in United States of America 10 Trotter Drive Medway MA 02053 888 GO CYBEX 888 462 9239 ...

Page 2: ... e e e ...

Page 3: ...fax your order to 508 533 5383 or contact Cybex Customer Service at 888 462 9239 or 508 533 4300 To contact Cybex with comments about this manual you may send email to techpubs cybexintl com FCC Compliance Information WARNING Changes or modifications to this unit not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This equipment h...

Page 4: ...Pageii Cybex 900T Treadmill Service Manual e e ...

Page 5: ... Troubleshooting Diagnostic Test Mode 4 1 Diagnostic Menu 4 1 LED Functions 4 6 Motor Current Voltage 4 7 Speed Sensor Adjustment 4 9 Error Codes 4 10 Flow Charts 4 13 5 Removal Replacement Running Belt Deck 5 1 Drive Belt 5 4 Front Roller 5 4 Rear Roller 5 4 Drive Motor 5 5 Drive Motor Cleaning 5 8 Motor Brushes 5 12 Elevation Motor 5 14 Limit Switch Assembly 5 17 PWM Module 5 18 Display Board 5 ...

Page 6: ...Cybex 900T Treadmill Service Manual e e ...

Page 7: ...rn Material Autt1orization RMA 7 1 Damaged Parts 7 2 This treadmill is for use on a nominal 115 VAG 15 60 DANGER Improper connection of the equipment grounding conductor can result in a risk of electric shock Check with a qualified electrician or service provider if you are in doubt as to whether the treadmill is properly grounded Seek a qualified electrician to perform any modifications to the co...

Page 8: ... dizzy or experience pain at any time while exercising and consult your physician Use the treadmill handrails for support and to maintain balance Use caution when mounting and dismounting the treadmill Disconnect all power before servicing the treadmill Use a dedicated line when operating the treadmill Connect the treadmill to a properly grounded outlet only Do not operate electrically powered tre...

Page 9: ...ized Cybex dealer or other competent repair service Use Cybex factory parts when replacing parts on the treadmill Do not modify the treadmill in any way Do not use attachments unless recommended for the treadmill by Cybex Report any malfunctions damage or repairs to the facility Do not use the treadmill if you exceed 400 Ibs 181 kg This is the rated maximum user weight Front Pages About this Manua...

Page 10: ...moderate injury The caution decals used on the 900T are shown below To replace any worn or damaged labels do one of the following Visit eCybex com to shop for parts online or download the parts order form and fax your order to 508 533 5183 To speak with a customer service representative in most areas call 888 GO CYBEX or 888 462 9239 Otherwise call 508 533 4300 ...

Page 11: ...Voltage 4 7 Speed Sensor Adjustment 4 9 Error Codes 4 10 Flow Charts 4 13 5 Removal Replacement Running Belt Deck 5 1 Drive Belt 5 4 Front Roller 5 4 Rear Roller 5 4 Drive Motor 5 5 Drive Motor Cleaning 5 8 Motor Brushes 5 12 Elevation Motor 5 14 Limit Switch Assembly 5 17 PWM Module 5 18 Display Board 5 20 EPROM 5 21 Contact Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display 0vet1a...

Page 12: ...Page 1 5 Cybex 900T Treadmill service Manual e e ...

Page 13: ...21 Contact Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display Over1ays 5 26 Handrail Assembly 5 28 6 Diagrams Parts Ust 6 1 Exploded VieW 6 3 900T Schematic 6 4 7 Customer Service Contacting Service 7 1 Serial Number 7 1 Retum Material Authorization RMA 7 1 Damaged Parts 7 2 82 208 cm 33 84 cm 20 x 60 51 cm x 152 cm 350 Ibs 159 kg 0 5 to 12 4 mph 0 8 to 20 kph in 0 1 mph or 0 1 kph ...

Page 14: ...s optimized for lateral stability This is accomplished through the use of a 10 gauge steel frame and critically damped rear wheels The heavy gauge of the steel frame provides a rigid structure to transfer the landing shock to the damped wheels so that they can effectively absorb the impact e ...

Page 15: ...rflow can prevent adequate cooling that could shorten motor life Cleaning this area should be done as often as indicated in the Service Schedule WARNING Keep wet items away from inside parts of the treadmill Electrical shock could occur even if the treadmill is unplugged Avoid touching the wire connections at the end of the blue capacitor mounted on top of the aluminum box next to the drive belt F...

Page 16: ...the only part of the treadmill you should use a cleaning solution containing alcohol In addition the nickel plating on the 900T may become tarnished and blackened with time This may reduce sensitivity and interfere with the heart rate signal Use an emery cloth to remove the tarnish from the exposed nickel plating on the heart rate grips Running Belt Maintenance Belt and Deck Clean the belt and the...

Page 17: ...and the deck becomes exposed on the left use a wrench to tighten the bolt on the right side of the frame tighten about 1 2 of a turn clockwise and wait 30 seconds If the belt does not move back to the center of the treadmill make another adjustment to the Front Pages About this Manual i FCC Compliance Information i Table of Contents iii 1 Safety Important Voltage Information 1 1 Grounding Instruct...

Page 18: ...urfaces The running belt and deck should be checked periodically for any excessive wear In an effort to make sure that the running belt operates properly visually inspect the belt on a weekly basis to make sure that there are no tears or fraying in the belt material To inspect the edges of the belt it is necessary to remove the motor cover and plastic side rails Follow these steps Tools Required P...

Page 19: ...Run your hand under the belt on the top of the deck surface If you feel excessive ridges or cracks or if the deck feels grooved yet highly polished the deck should be flipped so that an unused surface faces the top If the deck is worn on both sides it should be replaced In time a worn belt and deck can cause high current draw and ultimately motor failure For instructions on replacing the belt and ...

Page 20: ...erfonned at the recommended intervals listed in the Service Schedule located in this chapter Measure the motor brushes and replace worn motor brushes Rotate flip and replace the running deck Replace the running belt Check the current draw Measure motor voltage at maximum speed with no load Refer to the 900T Service Manual for detailed procedures when completing the tasks listed above If you need t...

Page 21: ...4 Display Cable 5 25 Display 0vet1ays 5 26 Handrail Assembly 5 28 6Di11grams Parts List 6 1 Exploded VIeW 6 3 900T Schematic 6 4 7 Cl I8tomer Service Contacting Service 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged Parts 7 2 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x xx x x x x x x x x x x x x x xx x x x x x x x x...

Page 22: ...s Motor Current 3 moh 4 8 kohl Motor Voltage 12 4 moh 20 kohl without load with 160 Ibs load 72 kg Notes Total Miles Total Hours Motor Current 3 moh 4 8 koh Motor Voltage 12 4 moh 20 koh without load with 160 Ibs load 72 kg Notes Total Miles Kilometers Total Hours Motor Current 3 mDh 4 8 kohl Motor Voltage 12 4 moh 20 kohl without load with 160 Ibs load 72 kg Notes Cybex 900T Treadmill Service Man...

Page 23: ...l model number for which the chip is intended followed by the revision level of the main program Press Enter which returns the display to the test menu choices For example 900T rx xx Front Pages About this Manual i FCC Compliance Information i Table of Contents iii 1 Safety Important Voltage Information 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 Caution Decals 1 4 2 Technical...

Page 24: ...e motor s permanent magnets have weakened Cybex recommends that you check the motor voltage periodically The recommended intervals are shown in the Service Schedule in the Preventive Maintenance chapter See instructions under Motor Current and Voltage in this chapter ACTUAL SPEED displays actual speed in kilometers per hour minus the decimal point for example 1 mph 161 5 mph 805 10 mph 1610 12 4 m...

Page 25: ...Matrix panel NOTE Press Stop last because it will also cause you to exit test 5 and return to the diagnostic test menu If you locate a button that is not functioning properly the overlay can be replaced to correct the problem 6 DMD CABLE CHECK This test checks to see that the cable connecting the upper display board and the lower control board is functioning property If this cable is defective no ...

Page 26: ...ks the CSAFE port located on the rear of the control panel console When you run this test the display will indicate either OK or CSAFE PORT CONNECTION OPEN To conduct this test properly the CSAFE test wire fixture needs to be plugged into the connector at the back of the console Without the connector in place the test will always read CSAFE PORT CONNECTION OPEN 8 CLEAR ERROR MESSAGE This test will...

Page 27: ... until you see the 16 EXIT DIAGNOSTICS message Press Enter to return the treadmill to its previous state before entering diagnostic mode Front Pages About this Manual i FCC Compliance Information i Table of Contents iii 1 Safety Important Voltage Information 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 caution Decals 1 4 2 Technical Specifications Specifications 2 1 Bioflex 2 2...

Page 28: ...e or is flashing this indicates that a problem exists in the transformer circuit and the PWM should be replaced Display LEOs The 900T display is equipped with 4 diagnostic LEOs to help determine an insufficient cable connection or a failed sub assembly LED 9 LED 9 is located in the upper left comer of the display facing the treadmill from the front just above the DMD wafer connector LED 9 is used ...

Page 29: ...The belt will move at 1 mph 1 6 kph You will see a number displayed which represents motor current in DC current D Without standing on the belt press the key to bring the speed of the treadmill up to 3 mph 4 8 kph At 3 mph 4 8 kph average current draw should be between 2 00 and 3 00 without anyone on the running belt E Now have a user walk on the belt at 3 mph 4 8 kph The maximum current draw with...

Page 30: ...u feel excessive ridges or cracks or if the deck feels grooved yet highly polished the deck should be flipped so that an unused surface faces the top If the deck is worn on both sides it should be replaced In time a worn belt and deck can cause high current draw and ultimately motor failure See Running Belt and Deck in the Removal and Replacement chapter of the Service Manual 6 Replace the side ra...

Page 31: ...two Phillips screws Sheave Gap _ Screw _ I llJ Figure 3 Front Pages About this Manual i FCC Compliance Information i Table of Contents iii 1 Safety Important Voltage Infonnation 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 Caution Decals 1 4 2 Technical Specifications Specmcations 2 1 Bioflex 2 2 3 Preventive Mamenance Rego Ja Maintenance Activities 3 1 Cleaning Your Treadmill ...

Page 32: ...technician To reach Cybex Customer Service from most areas call 888 GO CYBEX or 888 462 9239 Otherwise call 508 533 4300 or fax 508 533 5183 NOTE When recycling power wait for the display to go out before turning power back on The following list will help to explain the specific error messages ERR CODE 01 PWM Shutdown This condition will cause an abrupt shutdown of the belt as the motor control de...

Page 33: ...ent in the appropriate direction If the elevation moves in the correct direction cycling the power switch should correct this condition If near a limit and cycling the power switch causes the elevation to move further in the wrong direction the treadmill should be turned off and a service technician should be called Repeated occurrences of this error message should be addressed by a service techni...

Page 34: ...tion stored in non volatile memory NOVRAM such as the error log and user programs is different than that expected by the program stored in the EPROM The most likely cause of this error is a corrupted or failing EPROM If the EPROM is old replace it with the latest version This error can also occur by booting up the first time with a newer version EPROM In this case simply clear the error ERR CODE 1...

Page 35: ...s 5 26 Handrail Assembly 5 28 60iagrans Parts Ust 6 1 Exploded View 6 3 900T Schematic 6 4 7 Customer Service Contacting Service 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged Parts 7 2 Replace BELT DECK 0 or flip deck 10 unused SUlface Press STOP lWce 10 shut down Enter Diagnostics and check current draw see MoIor Current in chapter See TRIPPED BREAKER flowchart Replace BELT ...

Page 36: ...ecycle power Reset On Off switch to recycle power Cybex 900T Treadmill Service Manual In Diagnostics manually push run belt with foot one length of belt and check encoder count Speed Signal was lost for more than one second after the drive motor has successfully started Possible failures to create Error 2 Speed sensor PWM module Running deck Speed sensor cable Speed sensor adjustment Error 2 Belt ...

Page 37: ...Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display OveI1ays 5 26 Handrail Assembly 5 28 60iagrarns Parts Ust 6 1 Exploded VieW 6 3 900T Schematic 6 4 7 Customer Service Contacting Service 7 1 Serial Number 7 1 Retum Material Authorization RMA 7 1 Damaged Parts 7 2 Replace SPEED SENSOR Replace P Mv1 MODULE or send Cybex for repair YES NO Reset On Off NO switch to recycle power Ensure...

Page 38: ...ossible failures to create Error 4 PWM module User created problem by forcefully pushing run belt usually while elevated Reset ERROR code and enter Diagnostics check Actual Speed in Dynamic Tests Replace PW Il I MODULE or send to Cybex for repair To enter Diagnostic Mode press 999 and then press Enter To exit Diagnostic Mode press Clear e e e ...

Page 39: ...tch Assembly 5 17 PWM Module 5 18 Display Board 5 20 EPROM 5 21 Contact Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display Overlays 5 26 Handrail Assembly 5 28 6 DiagIallis Parts Ust 6 1 Exploded VIeW 6 3 900T Schematic 6 4 7 Customer Service Contacting Service 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged Parts 7 2 1 Safety Important Voltage Information 1 1 Gr...

Page 40: ...oblem is resolved Problem exists in either LINE FILTER or PIII M MODULE or ON OFF SINITCH YES Replace PIII M MODULE Cybex 900T Treadmill Service Manual PWM module Low line voltage Faulty connection On off switch Capacitor Line filter Check to ensure the wires to the capacitor are connected to the correct polarity Error 8 Power Fault Possible failures to create Error 8 The drive motor supply was de...

Page 41: ...M Module 5 18 Display Board 5 20 EPROM 5 21 Contact Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display OveI1ays 5 26 Handrail Assembly 5 28 6 Diagrams Parts Ust 6 1 Exploded VIeW 6 3 900T SChematic 6 4 7 Customer Service Contacting 5ervice 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged Parts 7 2 1 Safety Important Voltage Information 1 1 Grounding Instructions 1...

Page 42: ...YES YES Replace ElEVATION BRAKE Replace ELEVATION MOTOR Cybex 900T Treadmill service Manual Check resistance of elevation motor PWM module Elevation encoder Elevation motor Possible failures to create Error 11 No movement is detected when the elevation motor is powered This could occur with or without slight elevation motor movement Error 11 No Elevation Speed Page 4 20 ...

Page 43: ...d 5 20 EPROM 5 21 Contact Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display Overlays 5 26 Handrail Assembly 5 28 6 Parts List 6 1 Exploded VieW 6 3 900T Schematic 6 4 7 Customer 5ervice Contacting Service 7 1 Serial Number 7 1 Retum Material Authorization RMA 7 1 Damaged Parts 7 2 Check wiring on limit switches If needed replace wiring hamess to left side limit switch YES NO Replac...

Page 44: ...dmill Service Manual Replace PVIIJI MODULE or send to Cybex for repair Elevation chain may be broken Drive gear may be loose Elevation motor running slow Possible failures to create Error 13 Elevation motor was driven for 60 seconds without stopping changing directions or reaching a limit Error 13 Elevation Time Limit Page 4 22 ...

Page 45: ...e 5 25 Display 0ver1ays 5 26 Handrail Assembly 5 28 6 Diagrams Parts List 6 1 Exploded VIeW 6 3 900T Schematic 6 4 7 Customer Service Contacting Service 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged Parts 7 2 1 Safety Important Voltage Information 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 Caution Decals 1 4 Replace PIM II MODULE or send to Cybex for rep...

Page 46: ... 900T Treadmill Service Manual To enter Diagnostic Mode press 999 and then press Enter To exit Diagnostic Mode press Clear In Diagnostics run test 6 DMD Cable Test Error 15 line Tick Loss The timing has been lost from the lower board power line sync This error code only shows up in the error log and will not interrupt the operation of the treadmill PWM module Display cable Line frequency out of sp...

Page 47: ...g s a Motor Brushes 5 12 Elevation Motor 5 14 Limit Switch Assembly 5 17 PWM Module 5 18 Display Board 5 20 EPROM 5 21 Contact Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display Overlays 5 26 Handrail Assembly 5 28 6 DiaglanlS Parts List 6 1 Exploded VIeW 6 3 900T Schematic 6 4 7 Customer Service Contacting 5ervice 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged ...

Page 48: ...nostic Mode press 999 and then press Enter To exit Diagnostic Mode press Clear Remove back cover of Display and check LED 11 to see if it flashes to indicate data received by the Display from the PWJI Module Error 17 No Lower Board No information is received from the lower board at power up This error code only shows up in the error log and will not interrupt the operation of the treadmill Display...

Page 49: ... CSAFE Board 5 24 Display Cable 5 25 Display Overlays 5 26 Handrail Assembly 5 28 6 Diagrams Parts Ust 6 1 Exploded VieW 6 3 900T Schematic 6 4 7 Customer 5ervice Contacting Service 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged Parts 7 2 1 Safety Important Voltage Information 1 1 Grounding Instructions 1 1 Important safety Instructions 1 2 Caution Decals 1 4 Replace DISPLAY P...

Page 50: ...Iv1 MODULE or send to t Cybex for repair Remove PVIIv1 cover and check LED 1 in PVIIv1 module to see if it is lit indicating 5VDC supply to display Check LED 9 on the display board near the waffer connector from the PVIIv1 module Possible failures to cause no display PWM module Display cable Display board No LEDs on the display light up after turning the on off switch to the on position The displa...

Page 51: ...hooting Diagnostic Test Mode 4 1 Diagnostic Menu 4 1 LED Functions 4 6 Motor Current Voltage 4 7 Speed Sensor Adjustment 4 9 Error Codes 4 10 Flow Charts 4 13 5 Removal Replacement Running Belt Deck 5 1 Drive Belt 5 4 Front Roller 5 4 Rear Roller 5 4 Drive Motor 5 5 Drive Motor Cleaning 5 8 Motor Brushes 5 12 Elevation Motor 5 14 Umit Switch Assembly 5 17 PWM Module 5 18 Display Board 5 20 EPROM 5...

Page 52: ...this problem are as follows listed in the order of probability e Replace Display OVERLAY Enter diagnostics and run overlay test and check elevation control buttons 1 0 enter Diagnostic Mode press 999 and then press Enter To exit Diagnostic Mode press Clear Cybex 900T Treadmill Service Manual Possible failures to cause no elevation up Limit switch Elevation motor PWM module Elevation sensor Elevati...

Page 53: ...To exit Diagnostic Mode press Clear Front Pages About this Manual i FCC Compliance Information i Table of Contents iii 1 Safety Important Voltage Information 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 Caution Decals 1 4 2 Technical Specifications Specifications 2 1 Bioflex 2 2 3 Preventive Maintenance RegUar Maintenance Activities 3 1 Cleaning YourTreadmill 3 1 Running Belt M...

Page 54: ...O Off switch to recycle power Reinstall 2 motor leads into green PII M comector Reset On Off switch to recycle power Troubleshoot DRIVE MOTOR MOTOR BRUSHES Replace as needed Reset On Off switch to recyde power Tum power off and remove 2 molor leads from green connector 011 PII M and unplug elevation from PII M Tum power back 011 Tripped Breaker Page 4 32 ...

Page 55: ...lay Cable 5 25 Display Overlays 5 26 Handrail Assembly 5 28 6 Diagrams Parts Ust 6 1 Exploded VIeW 6 3 900T Schematic 6 4 7 Customer Service Contacting Service 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged Parts 7 2 I Screws j Figure 1 ve the motor cover A Using a flat head screw driver remove the hex head screw on the top of each side rail toward the front of the treadmill S...

Page 56: ...eadmill Service Manual A Using a 3 4 socket wrench loosen and remove the two rear roller bolts See Figure 3 Loosen each bolt evenly making sure not to loosen either bolt too many turns before moving to the other bolt Remove the bolts washers springs and nuts and set them aside B Lift one side of the rear roller and slide the roller out of the running belt 5 Loosen the deck 4 Remove the rear roller...

Page 57: ...odes 4 10 Row Charts 4 13 5 Removal Replacement RLnling Belt Deck 5 1 Drive Belt 5 4 Front Roller 5 4 Rear Roller 5 4 Drive Motor 5 5 Drive Motor Cleaning 5 8 Motor Brushes 5 12 Elevation Motor 5 14 Umit Switch Assembly 5 17 PWM Module 5 18 Display Board 5 20 EPROM 5 21 Contact Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display Overlays 5 26 Handrail Assembly 5 28 6 Diagrams Parts U...

Page 58: ...s around the drive pulley and the front roller before attaching the front roller There will be some slack in the drive belt until step 10 B is complete Front Roller 10 Attach the front roller A With the drive belt around the drive pulley and the front roller loosely attach the two bolts and four washers that fasten the front roller to the front end assembly See Figure 6 Tighten each of the two bol...

Page 59: ...stments in the Preventive Maintenance chapter Then continue with step 15 15 Attach the motor cover A Lower the motor cover in position and install the two Phillips head screws that hold it in place Drive Motor NOTE This procedure will cover the drive motor and motor cleaning Tools Required Phillips head screwdriver Flat head screwdriver small tipped 3 8 Socket wrench 7 16 Wrench 1 2 Socket wrench ...

Page 60: ...sing a 3 8 socket wrench remove the two screws and two washers that hold each limit switch bracket to the front panel Set the screws washers and limit switch assemblies aside See Figure 8 B Using a 1 2 socket wrench remove the two screws from the top of the front panel See Figure 8 C Using a 7 16 wrench remove the two nuts and washers that hold the mounting plate to the front panel See Figure 8 D ...

Page 61: ... Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display OveI1ays 5 26 Handrail Assembly 5 28 6 Diagrams Parts List 6 1 Exploded VieW 6 3 900T Schematic 6 4 7 Customer Service Contacting Service 7 1 Serial Number 7 1 Retum Material Authorization RMA 7 1 Damaged Parts 7 2 Set Screw 9I I I I I Mounting Plate I I I I m 1 Flywheel I I I m I I m If I I If I I I tf I I Shaft I I I Speed Sensor Assem...

Page 62: ...ews that hold the speed sensor bracket on to the side of the motor Transfer the speed sensor assembly to the new motor and install it in the same orientation See Figure 9 See Speed Sensor Adjustment in the Troubleshooting chapter for gap information if necessary NOTE Use caution while removing the speed sensor bracket The extemal motor brush spring may pop out of the holder making it difficult to ...

Page 63: ...rel Lead VVires Front End Bell Jcommutator t Brush Caps 2 Fan Shroud Screws 3 Figure 11 Front Pages About this Manual i FCC Compliance Information i Table of Contents iii 1 Safety Important Voltage Infoonation 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 Caution Decals 1 4 2 Technical Specifications Specifications 2 1 Bioflex 2 2 3 Preventive Mair1teNn e Reglia Mantenance Activ...

Page 64: ...refurbished and new motors for replacement B Use a dry cloth to loosen and wipe away dirt and brush dust from around the brush holder area and inside the lead end bell Brush dust can be loosened from the brush holder area by lightly filing the surfaces See Figure 12 If there is excess dust you may use a vacuum Lead End Bell Figure 12 8 Assemble the drive motor A Attach the lead end bell with the f...

Page 65: ...t hold the motor to the mounting plate A Carefully lower the drive motor in position Place the drive belt loosely around the drive pulley NOTE The drive motor lead wires are black and white When connecting the drive motor wires be sure that the black wire is inserted into the slot labeled 3 and the white wire into the slot labeled 4 E Place each brush in its brush holder and carefully push the spr...

Page 66: ...l check the positive brush for cracks or chips It is not necessary to remove the drive motor in order to reach the motor brushes You can get at the lower brush from undemeath the treadmill Tools Required Phillips head screwdriver or hex key for some models Large flat head screwdriver or brush cap tool part number FS 12263 I WARNING Keep wet items away from inside parts of the treadmill Electrical ...

Page 67: ...pitted or blackened on one edge Too many of these indicate a worn commutator and the motor should be replaced The commutator may be cleaned with narrow commutator stone if carbon build up is present File down the stone if it won t fit in the brush holder hole Brush dust can be loosened from the brush holder area by lightly filing the surfaces Dirt and brush dust inside the drive motor can cause a ...

Page 68: ...ng 999 then press Enter B Display the error codes by pressing forward backward and scrolling to Test 9 You ll be able to view all error codes recorded up to 16 on the display Make a note of the errors and refer to the manual for the interpretation of these errors Likely brush error codes are errors 2 4 6 or 1 C Clear the entire error log by pressing to scroll to Test 10 then press Enter D Exit Dia...

Page 69: ...ties See Figure 10 c Loosen and remove the two bolts that fasten the mounting plate to the treadmill base See Figure 15 D Loosen and remove the four bolts that fasten the elevation motor to the mounting plate See Figure 15 E Slide the motor toward the front of the treadmill to create slack in the chain Remove the chain from the drive gear See Figure 15 Front Pages About this Manual i FCC Complianc...

Page 70: ...ift and remove the elevation motor from the treadmill 6 Attach the elevation motor e e o Shaft Gear Chain Set Screws Key c Partially tighten the four screws that fasten the elevation motor to the motor mounting plate Leave them loose until step F D Place the chain around the drive gear and the shaft gear E Attach the two screws that fasten the mounting plate to the treadmill base F Fully tighten t...

Page 71: ...el to the off 0 position Front Pages About this Manual i FCC Compliance Information i Table of Contents iii 1 Safety Important Voltage Infoonation 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 Caution Decals 1 4 2 Technical Specifications Specifications 2 1 Bioflex 2 2 3 Preventive RegUcw Maintenance Activities 3 1 Cleaning Your Treadmill 3 1 Running Belt Maintenance 3 2 Other P...

Page 72: ...hat fasten the motor cover to the frame B Lift the motor cover and remove it from the treadmill Set the cover and screws aside 3 Remove the PWM module A Unplug the four connectors from the PWM module elevation optical pick up cable display cable jumper elevation power cable and the bulk head connector See Figure 17 B Using a Phillips head screwdriver remove the three screws that hold the cover to ...

Page 73: ...the front roller and two between the PWM module and the drive motor D Plug the four connectors into the PWM module elevation optical pick up cable display cable jumper elevation power cable and the bulk head connector E Place the cover to the PWM module in position and using a Phillips head screwdriver tighten the three screws that hold the cover to the PWM module Set the cover and screws aside 5 ...

Page 74: ...ounding strap This eliminates the potential voltage static difference between you and the equipment you are working on Display Board 3 Remove the display board A While wearing an ESD strap disconnect all five cables from the display board the display cable the CSAFE cable the ribbon cable the contact heart rate cable and the ground terminal See Figure 18 Figure 18 Tools Required Phillips head scre...

Page 75: ...static electricity While handling parts undemeath the console cover use an ESD Electro Static Discharge grounding strap This eliminates the potential voltage static difference between you and the equipment you are working on Front Pages About this Manual i FCC Compliance Infoonation i Table of Contents iii 1 Safety Important Voltage Information 1 1 Grounding Instructions 1 1 Important Safety Instr...

Page 76: ... where pin 1 is located is usually indicated by a notch or a small half circle that is etched out of one end of the chip 5 Attach the console back A While being sure not to pinch any cables attach the console back to the console with the eight Phillips head screws Contact Heart Rate Board Tools Required Phillips head screwdriver ESD grounding strap 1 Turn the power off A Turn the main power switch...

Page 77: ...itch Assembly 5 17 PWM Module 5 18 Display Board 5 20 EPROM 5 21 Contact Heart Rate Board 5 22 CSAFE Board 5 24 Display Cable 5 25 Display Overlays 5 26 Handrail Assembly 5 28 6 Diagrams Parts Ust 6 1 Exploded VIeW 6 3 900T Schematic 6 4 7 Customer Service Contacting Service 7 1 Serial Number 7 1 Return Material Authorization RMA 7 1 Damaged Parts 7 2 1 Safety Important Voltage Information 1 1 Gro...

Page 78: ...atic Discharge grounding strap This eliminates the potential voltage static difference between you and the equipment you are working on 3 Remove the CSAFE board A While wearing an ESD strap unscrew the three Phillips head screws holding the CSAFE board in place B Disconnect the 4 pin CSAFE cable that branches off from the display cable See Figure 19 4 Attach the CSAFE board A Place the CSAFE board...

Page 79: ... place D Pull the display cable out of the left upright 5 Connect the display cable A Connect the display cable into the display board See Figure 18 B Straighten out the cable and drop it down the left upright Front Pages About this Manual i FCC Compliance Infoonation i Table of Contents iii 1 Safety Important Voltage Information 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 Cau...

Page 80: ...hillips head screws Display Overlays NOTE This procedure will cover the lower display overlay The upper display overlay is removed and replaced the same way except that there is no ribbon cable slot silicone and ground tab Tools Required Phillips head screwdriver ESD grounding strap 5 16 socket wrench Razor blade 1 Turn the power off A Turn the main power switch in the front panel to the off 0 pos...

Page 81: ...Attach the console back A While being sure not to pinch any cables attach the console back to the console with the eight Phillips head screws Front Pages About this Manual i FCC Compliance Information i Table of Contents iii 1 Safety Important Voltage Infoonation 1 1 Grounding Instructions 1 1 Important Safety Instructions 1 2 Caution Decals 1 4 2 Technical Specifications Specifications 2 1 Biofle...

Page 82: ... console back cover A Remove the eight Phillips head screws that hold the back cover to the console NOTE The display board is susceptible to damage from a discharge of static electricity While handling parts underneath the console cover use an ESD Electro Static Discharge grounding strap This eliminates the potential voltage static difference between you and the equipment you are working on 3 Remo...

Page 83: ...tions 1 2 Caution Decals 1 4 2 Technical Specifications Specifications 2 1 Bioflex 2 2 3 Preventive Maintenance RegUar Maintenance Activities 3 1 Cleaning Your Treadmill 3 1 Running Belt Maintenance 3 2 Other Preventive Maintenance 3 6 Service Schedule 3 7 Log Sheet 3 8 4 TI OUbIeshooUlg Diagnostic Test Mode 4 1 Diagnostic Menu 4 1 LED Functions 4 6 Motor Current Voltage 4 7 Speed Sensor Adjustmen...

Page 84: ...Page 5 30 Cybex 900T Treadmill Service Manual e e ...

Page 85: ... Hex Head Bolt 38 1 AL 10975 Roller Assy Rear 3 39 2 HS 00261 Bolt 1 2 13 x 5 5 Hex Head 40 2 HB 00188 Bushing Thrust 50 41 2 HX 11049 Spring 1 00 Rear Roller Tensioning 42 2 HW 00590 Bushing 1 2 Nylon Rear Roller Bolt 43 2 HX 13771 Retaining Ring 44 1 BD 10981 Belt Running 20 75 x 127 50 45 1 AF 12163 Panel Front End 46 1 HX 14821 Brake Elevation 90 VDC 47 1 DE 10288 Label Belt Caution Grey 48 1 ...

Page 86: ...o Inlet Jumper 69 1 HS 00219 Screw Set 5 16 18 x 3 8 Blk 12AWG 70 1 FW 09392 Flywheel Drive Motor NS AW 12210 Cable Switch to Inlet Jumper 71 1 MR 13575 Motor 3 0 HP 18OV Double Shaft Gm 12AWG 72 1 HX 11593 Key ANSI Square 3 16 x 1 3 16 NS AW 12212 Cable Switch to Inlet Jumper 73 1 AF 12175 Base Drive Motor 3 0 HP Wht 12AWG 74 4 HN 00117 Nut 1 4 20 Hex STL Zinc NS 1 WR 13966 Cord Power 12 230V 60H...

Page 87: ... e e e Cybex 900T Treadmill Service Manual p a ge 6 3 __ ...

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Page 89: ...ny item that is defective 2 Provide the technician with a detailed description of the problem you are having or the defect in the item you wish to return 3 Provide the model and serial number of your treadmill The serial number is located on the front panel of your treadmill The serial number begins with a letter for example R09 1 013311 00 Front Pages About this Manual i FCC Compliance Informatio...

Page 90: ...ies etc Apparent Damage Upon receipt of your shipment check all boxes carefully Any damage seen with a visual check must be noted on the freight bill and signed by the carrier s agent Failure to do so will result in the carrier s refusal to honor your damage claim The carrier will provide you with the required forms for filing such claims Concealed Damage Damage not seen with a visual check upon r...

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Summary of Contents for 900T

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CYBEX 900T, Service Manual

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