Home

Service Manual, 9.33i, 9.35i.fm

1. Length Width Height Running surface Motor Speed Incline Power Weight 9 33i 9 35i Treadmill 79 inches 201 cm 33 5 inches 85 cm 55 inches 140 cm 20 inches by 57 inches 51 cm by 145 cm 2 75 9 33i 3 0 9 35i hp continuous duty DC 0 5 to 11 mph 0 8 to 18 kph 10 mph is equivalent to a 6 minute mile 0 to 15 grade 120 Vac 50 60 Hz 20 amp 280 Ibs 127 kg Page 3 9 33i 9 351 Treadmill Procedure 2 1 Accessing the Hardware Validation Program The treadmill s diagnostic program consists of the following modes e Display Test Keyboard Test Heart Rate Test Lift Test Belt Speed Test Belt Power Test Procedure 1 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker 2 Refer to diagram 2 1 below and press keys STOP 5 1 7 6 5 7 6 1 sequentially On the 9 35i either the function keys or the numerical keypad may be used 3 The display will momentarily read DISPLAY TEST and then illuminate every LED on the display Check all LED positions to ensure that all of the LED s are functioning Press the ENTER key to continue Diagram 2 1 9 35i Display Key 3 Key 6 Key 1 Key 7 Key 2 f Numeric Keypad Key 4 Key 5 Page 4 9 33i 9 35i Treadmill The display will momentarily read KEYBOARD TEST The keyboard test will place two dots on the display for each key on the display including the numeric keypad Pressi
2. on position 11 check the calibration of the lift system by performing the following steps a Press the INCLINE a key until the console displays 15 incline b Press the INCLINE v key to return to 0 incline 12 Re install the hood per Procedure 6 11 Page 13 9 33i 9 35i Treadmill Procedure 4 2 Adjusting Drive Belt Tension 1 Set the treadmill circuit breaker in the off position and unplug the line cord from the wall outlet 2 Remove the hood 3 Place the drive belt tension gauge on the drive belt as shown in Diagram 4 2 Diagram 4 2 Drive Belt Tension Gauge 4 The gauge should read approximately 80 inch pounds The drive belt tension is acceptable if it is in the range of 70 to 90 inch pounds 5 If the drive belt tension is less than 70 or greater than 90 inch pounds slightly loosen the four drive motor mounting bolts The drive motor mounts on slotted holes allowing the drive motor to be move forward or rearward Move the drive motor forward or rearwards as required until the belt gauge reads approximately 80 inch pounds and tighten the four drive motor mounting bolts See Diagram 4 3 Momentarily remove the drive belt tension gauge from the drive belt Replace the drive belt tension gauge on the drive belt and re adjust the drive belt tension if necessary Torque the four drive motor mounting bolts to 180 inch pounds Page 14 9 33i 9 35i Treadmill 6 Re install the hood per Procedure 6 11 D
3. 25 inch pounds Page 31 10 11 9 33 9 351 Treadmill Feed the speed sensor connector through the grommet in the lower PCA bracket and insert it in the J3 connector of the lower PCA Slowly rotate the flywheel to ensure that the flywheel lobes do not contact the speed sensor Set the treadmill circuit breaker in the on position and check treadmill operation per Procedure 3 Page 32 9 33i 9 35i Treadmill Procedure 6 5 Replacing Drive Motor Set the treadmill circuit breaker in the off position and unplug the treadmill s line cord from the AC outlet Remove the hood The drive motor and flywheel are balanced as a matched pair Since the flywheel is balanced to a specific motor flywheels should not be removed from one and installed ona different motor If the drive motor is replaced the drive motor and flywheel should be replaced as a unit Remove the screws that fastens the speed sensor mounting bracket to the treadmill drive motor See Diagram 6 4 Move the speed sensor and bracket as far from the drive motor as possible Remove the blue and brown wires from the drive motor cooling fan 9 35 only Disconnect the red and black drive motor wires from the lower PCA Loosen the four drive motor mounting bolts See Diagram 4 3 Remove the drive belt from the drive motor pulley Remove the four bolts that fasten the drive motor to its mounting base Remove the drive motor from the treadmill Remove the four
4. and terminal 4 of J3 black wire on the lower PCA Slowly rotate the drive motor flywheel The voltage should read approximately 0 25 Vdc when a flywheel lobe is between the speed sensor legs and approximately 5 Vdc when a flywheel lobe is not between the speed sensor legs Diagram 5 3 Speed Sensor Mounting Flywheel Speed Lobe Sensor Drive Motor 2 Ifthe voltages in step 1 are correct go to step 5 If the voltage in step 1 is 0 Vdc or significantly low when a flywheel lobe is between the speed sensor legs continue with step 3 Page 22 9 33i 9 35i Treadmill Measure the voltage between terminal 1 of J3 red wire and terminal 4 of J3 black wire on the lower PCA see Diagram 5 2 The voltage should read approximately 5 Vdc If the voltage is missing or significantly low disconnect the speed sensor plug from the lower PCA Measure the voltage between pins 1 amp 4 of the J3 connector on the lower PCA If the voltage is approximately 5 Vdc replace the speed sensor If the voltage is missing or significantly low replace the lower logic PCA If at this point the speed sensor output is good but a speed error occurs replace the upper PCA If you have performed all of the above procedures and have been unable to correct the problem call Precor Customer Support Page 23 9 33i 9 35i Treadmill Procedure 5 4 Troubleshooting the External A C Power Source It is extremely important that any Pr
5. approximately 1 KQ If either reading is open or very high resistance replace the lift motor per Procedure 6 1 If you have performed all of the procedures above and have been unable to correct the problem call Precor customer service Set the treadmill s circuit breaker in the off position and remove the AC line cord from the AC outlet Remove the lift motor connector from the J1 connector on the lower PCA Visually inspect the lift motor connector for broken frayed or improperly crimped connections Using an ohmmeter read the resistance between terminals 1 amp 4 3 amp 4 and 1 8 3 The readings should be approximately 12 0 12 0 and 24 Q respectively If the reading is significantly low replace the lift motor per Procedure 6 1 Page 20 9 33i 9 35i Treadmill If the resistance readings in step 13 are normal replace the lower logic PCA per Procedure 6 3 If you have performed all of the procedures above and have been unable to correct the problem call Precor customer service Set the treadmill s circuit breaker in the off position and remove the AC line cord from the AC outlet Remove the lift motor connector from the J7 connector on the lower logic PCA Visually inspect the lift motor connector for broken or improperly crimped connections Using an ohmmeter measure between terminals 1 amp 3 1 amp 2 and 2 amp 3 of the lift motor connector Terminals 1 and 3 should read approximately 1 KQ The sum of the two
6. capable of safely handing 20 amps If the A C wiring is under sized it must be replaced with wire capable of safely handling 20 amps Please refer to local electrical codes when determining the appropriate wire size for a 20 amp circuit Both the hot leads feed several A C outlets Both hot leads must be removed from treadmill s A C outlet and two new hot leads from the treadmill s A C outlet to the circuit breaker must be added A licensed electrician may use the followings hints to determine if an A C service is dedicated 1 If on a 120 Vac system the A C distribution panel contains more circuit breakers than neutral leads the system has shared neutral leads and is not dedicated If an A C outlet 120 or 240 Vac has multiple hot and or neutral leads it is not a dedicated If either of the above conditions exist the system is not dedicated However absence of the above conditions does not necessarily mean that the system is dedicated If any doubt exists about A C systems dedication point to point tracing of the A C wiring may be the only way to prove system dedication Page 25 9 33i 9 35i Treadmill Procedure 6 1 Replacing the Lift Motor Note The replacement lift motor must be calibrated prior to installation The defective lift motor is then removed and the calibrated replacement lift motor is installed 1 2 10 11 12 If the incline is at 0 skip to step 3 Set the treadmill circu
7. on the electronic console Make sure that each LED lights as the in formation corresponding to that LED is displayed on the electronic console If during step 1c squeaking noises associated with the running deck were heard check the lubrication of the running deck studs If necessary apply silicon grease to all of the running deck studs Press the STOP key When the treadmill comes to a stop view the electronic console as the treadmill scans time speed distance and percent of lift Press the INCLINE A key while viewing the electronic console Confirm that the running bed inclines and the incline display increments to 15 as the INCLINE A key is pressed Press the INCLINE Wkey while viewing the electronic console Confirm that the running bed returns to a level position and the incline display decrements to 0 as the INCLINE W key is pressed Turn off the treadmill with the circuit breaker then unplug the treadmill from the wall outlet Page 11 9 33i 9 351 Treadmill Procedure 4 1 Calibrating the Lift Motor Set the treadmill circuit breaker in the off position and unplug the line cord from the wall outlet 2 Remove the hood Place the treadmill on it s right side Remove hitch and clevis pins that secure the lift tube to the lift platform Diagram 4 1 Lift Motor Mounting La 17001pm lil ve 04 Drive Screw 7001042814 4064 101 gnii 05000 NEDIN l ia bmm set Mas 1 OH 8 OFF i
8. readings between terminals 2 8 3 and 1 amp 2 should total approximately 1 KO If either reading is open or very high resistance replace the lift motor per Procedure 6 1 If the resistance measurements in step 16 are normal the problem may be either the lower logic PCA or the upper PCA Replace the lower logic PCA If the problem persists reinstall the original lower logic PCA and replace the upper PCA If you have performed all of the procedures above and have been unable to correct the problem call Precor customer service Page 21 9 33i 9 35i Treadmill Procedure 5 3 Troubleshooting the Speed Sensor Note The speed sensor is a hall effect sensor that emits a pulse when a flywheel lobe passes between it s transmitter and receiver The speed control circuit processes the pulse train emitted by the speed sensor The speed sensor signal is a real time representation of the operating speed of the treadmill The speed control circuit compares the real time speed speed sensor output with the speed that it expects the treadmill to be operating at and acts accordingly to control treadmill speed or initiate an error code sequence if necessary Typically if a problem exists with the speed sensor the drive motor will operate perhaps only briefly before a speed related error occurs errors 20 26 1 Set the treadmill circuit breaker in the on position Using a DC voltmeter measure the voltage between terminal 3 of J3 green wire
9. treadmill circuit breaker in the off position Remove the AC line cord from the AC outlet 2 Remove the treadmill hood Carefully lay the treadmill on it s right side 3 Remove the hitch pin and clevis pin that fastens the lift motor tube to the lift platform While the lift tube is not fastened to the lift platform care must be taken to not allow the lift tube to rotate If the lift tube rotates the lift motor must be re calibrated per Procedure 4 1 4 Using a punch or stout screwdriver press the lift platform mounting pins toward the treadmill frame and out of the lift platform Remove the lift platform from the treadmill Diagram 6 1 Lift Platform Mounting Pin Lift Platform Mounting Pin 5 With a screwdriver or similar tool carefully pry the forward end of the aluminum treadmill frame trim away from the treadmill frame see Diagram 6 2 6 Using a flat bladed tool reach under the treadmill trim and press the lift platform mounting pin into the lift platform Replace the hitch pin in the lift platform mounting pin Press the treadmill frame trim back into place 7 Hold the lift platform against the bottom of the treadmill and carefully roll the treadmill back into an upright position Carefully lay the treadmill on its left side and repeat the procedure in step 6 Page 27 9 33i 9 35i Treadmill Diagram 6 2 Treadmill Frame Trim l Frame Trim Lift Platform Mounting Pin Front gt 8 Check
10. treadmill operation per Procedure 3 Page 28 9 33i 9 35i Treadmill Procedure 6 3 Replacing the Lower PCA 3 Set the treadmill circuit breaker in the off position Remove the AC line cord from the AC outlet Disconnect the lower PCA drive motor connector from the drive motor Disconnect Both lift motor connectors the speed sensor connector the drive motor fan connectors the lower PCA fan connector and the AC input wires from the lower PCA Remove both lower PCA mounting screws and remove the lower PCA See Diagram 6 3 Diagram 6 3 Lower PCA Grommet Lower PCA Mounting Screws Set the replacement lower PCA in its mounting position and fasten it with the screws removed in step 3 Torque the lower PCA mounting screws to 120 inch pounds The AC input wires are the blue and brown wires AC line filter on the front dress panel Connect the brown AC input wire to the M2 terminal and the blue AC input wire to the M1 terminal of the lower PCA Connect the brown drive motor fan wire to terminal M4 and the blue drive motor fan wire to the M5 terminal on the lower PCA Connect the black and red drive motor wires to the mating black and red connectors on the lower PCA Feed the speed sensor connector through the grommet in the lower PCA bracket and insert it in the J3 connector of the lower PCA Feed the lower PCA fan r connector through the grommet in the lower PCA bracket and insert it in the J4 connector of the
11. 9 33i 9 35i Treadmill 9 331 9 351 Treadmill Warning This service manual is for use by Precor trained service providers only If you are not a Precor Trained Servicer you must not attempt to service any Precor Product Call your dealer for service This document contains information required to perform the majority of troubleshooting and replacement procedures required to repair and maintain this product This document contains general product information software diagnostic procedures when available preventative maintenance procedures inspection and adjustment procedures troubleshooting procedures replacement procedures and electrical block and wiring diagrams To move directly to a procedure click the appropriate procedure in the bookmark section to the left of this page You may drag the separator bar between this page and the bookmark section to change the size of the page being viewed 2005 Precor Incorporated Unauthorized Reproduction and Distribution Prohibited By Law Page 1 9 33i 9 35i Treadmill Section One Things you Should Know About This Appendix Section One Things You Should Know This section includes technical specifications Read this section as well as the 9 33i or 9 351 Treadmill Owner s Manual before you perform the maintenance procedures in this manual Section Two Software Features Precor treadmills are programmed with several diagnostic and setup features This section contains
12. MY 8245 1 D MADI 18 Taiwaji ml 6182 Serial Ho IU c 5 2 i Lift Tube Page 12 9 33i 9 35i Treadmill 4 Plug the power cord into the wall outlet set the treadmill circuit breaker in the on position 5 Press keys RESET 5 1 7 6 5 7 6 1 sequentially to enter the diagnostics routine Refer to Procedure 2 1 and advance to the lift test When the lift calibration number is displayed on the console use the INCLINE a or INCLINE v key to set the lift calibration number to 20 CAUTION While running the lift motor in the diagnostics mode it is possible to operate the lift motor beyond it s normal range of motion When you perform the next step care must be taken not to jam the lift tube against the motor frame 6 Press the RESET key to exit the diagnostics mode 7 Setthe treadmill circuit breaker in the off position unplug the line cord from the wall outlet 8 Rotate the lift tube clockwise by hand as far as possible Then rotate the lift tube counter clockwise until the distance from the top of the lift tube to the lift motor is 1 inch See Diagram 4 1 While rotating the lift tube be sure the lift motor drive screw does not rotate If the drive screw is rotated return to step 4 and repeat steps 4 through 7 9 Replace the clevis and hitch pins removed in step 3 Return the treadmill to an upright position 10 Plug the line cord into the wall outlet set the treadmill circuit breaker in the
13. ecor treadmill be connected to and operated on a dedicated 20 amp A C circuit A 20 amp dedicated circuit is defined as a circuit fed by a 20 amp circuit breaker that feeds a single load A treadmill operating from a non dedicated circuit or a circuit breaker of less than 20 amps capacity will not have the necessary power available to operate normally under higher load conditions The lack of available power can cause any number of symptoms ranging from numerous intermittent seemingly inexplicable error conditions poor speed control or tripping the house circuit breaker If any of the above symptoms exist the external A C circuit must be checked and confirmed to be a 20 amp dedicated circuit before troubleshooting the treadmill In addition the A C voltage must be checked Nominal A C operating voltage on 120 Vac circuits is 105 Vac to 120 Vac Nominal A C operating voltage on 240 Vac circuits is 208 Vac to 240 Vac For operator safety considerations and to minimize electrostatic discharge conditions the A C frame ground continuity must also be verified to be a low resistance connection to the A C distribution ground bar Important If the A C circuit feeding a treadmill is found to be a non dedicated circuit or a circuit equipped with a circuit breaker with a capacity of less than 20 amps the A C circuit must be corrected to be a 20 amp dedicated circuit before any reliable troubleshooting can be performed on the treadmill More impo
14. ect the line cord s blue wire from the line filter Remove the line cord s strain relief mounting nut and remove the line cord Remove the mounting nut from the replacement line cord and feed the replacement line cord through the treadmill dress panel Fasten the line cord to the circuit breaker mounting plate with the nut removed in the previous step Connect the line cord s brown wire to the circuit breaker per Diagram 6 5 Connect the line cord s blue wire to the line filter per Diagram 6 5 Connect the line cord s ground wire green yellow wire to the treadmill dress panel with the hardware removed in step 3 Set the dress panel in its mounting position hand start the four mounting bolts and the sheet metal screw removed in step 2 Torque the four dress panel bolts to 120 inch pounds Torque the sheet metal screw to 90 inch pounds Replace the hood per Procedure 6 11 Check treadmill operation per Section 3 Page 38 9 33 9 35i Treadmill Procedure 6 09 Replacing the Drive Motor Brushes 4 Set the treadmill circuit breaker in the off position and unplug the treadmill s line cord from the AC outlet Remove the hood Remove the screws that retain the drive motor brush cover Carefully remove the heavy paper cover from the brush access opening Disconnect the brush wire from the tab on the brush housing Remove the brush spring by depressing the tab on the brush spring Remove the brush from it s b
15. f the lift motor operates but creates a lift error error 40 or 42 go to step 16 If the lift motor will not move continue with step 2 2 Set the treadmill s circuit breaker in the off position and remove the AC line cord from the AC outlet 3 Remove the F2 Lift AC fuse from the lower PCA Using an ohmmeter check the resistance of the F2 fuse See Diagram 5 2 The fuse should measure approximately 0 1 Q or less If the fuse is open or high resistance replace the fuse Diagram 5 2 Lower PCA J1 Connector Fuse F2 J3 Connector J7 Connector Page 19 10 11 12 13 9 33i 9 35i Treadmill Insert the treadmill s line in the AC outlet and set the circuit breaker in the on position Set the treadmill in the manual program and press the LIFT A key If the lift motor operates normally test treadmill operation per Section 3 If the lift motor still does not operate retest the lift fuse per steps 2 amp 3 If the fuse is open again continue with step 13 If the fuse is good continue with step 5 Connect an AC voltmeter between terminals 1 amp 4 of the J1 connector See Diagram 5 2 Set the treadmill in the manual program and press the LIFT A key The AC voltmeter should read AC line voltage 120 Vac and the red UP LED should illuminate Note that the AC line voltage reading will only be present before an error condition is displayed If the F2 fuse is good and the UP LED illuminates and the AC voltme
16. gram Page 17 9 33 9 35i Treadmill 16 If one or more keys do not function correctly either the keypad display housing or upper PCA could be defective Replace the display and repeat step 14 If the display housing did not correct the problem re install the original display housing and replace the upper PCA 17 If you have performed all of the procedures above and have been unable to correct the problem call Precor customer service Page 18 9 33i 9 35i Treadmill Procedure 5 2 Troubleshooting the Lift System Lift System Description The lift system on these units consists of an AC line voltage driven lift motor 120 Vac and an internal 1 KQ potentiometer for lift position identification The lift motor contains two motor windings one to operate the motor in an upward direction and the other to operate the motor in a downward direction As the lift motor is operated the motor also rotates the potentiometer via an internal gear system Therefore the position of the lift system can be determined by monitoring the value of the internal potentiometer The lift motor is initially set at a known starting position calibration See Procedure 4 1 subsequent motor movement is tracked via the potentiometer resistance reading Note All resistance measurements must be performed with power removed from the treadmill Performing resistance measurements with voltage applied may damage your ohmmeter Procedure 1 I
17. hood mount 7 Hand start the two front hood mounting bolts Torque all four hood mounting bolts to 120 inch pounds Page 41 9 33i 9 351 Treadmill Procedure 6 11 Replacing the PROM Anti static kits part number 20024 101 can be ordered from Precor 1 The PROM and the associated printed circuit assembly PCA are static sensitive Anti static devices must be used and all anti static precautions must be followed during this procedure Remove the printed circuit assembly per its associated procedure Currently we are using two styles of IC software packages they are a 28 pin dual in line package DIP28 and a forty four pin square package PLCC44 Each of these packages should be removed with a r IC removal tool see the illustrations below PLCC44 removal tool DIP28 removal tool The IC s may inserted into their socket by hand by carefully aligning the notch on the IC with the notch on the IC socket and carefully pressing the IC into its socket See the illustrations below for the alignment notches Care must be taken that the IC legs on a DIP28 are all aligned in the socket to prevent the legs from bending when inserted The PLCC44 IC must be carefully aligned squarely in its socket or it will not insert Do not force the IC into its socket If it does not insert easily remove the it and re align it in its socket sisjefsl aha ea CISK V1 02 LWA B Q 32 00 SC PCA Page 42 9 33i 9 35i Treadmi
18. iagram 4 3 Drive Belt Adjustment Drive Motor Mounting Bolt 7 Plug the line cord into the wall outlet and set the treadmill circuit breaker in the on position 8 Check treadmill operation per Section 3 Page 15 9 33i 9 35i Treadmill Procedure 5 1 Troubleshooting the Keypad and Upper PCA If the function keys on the electronic console are unresponsive the problem may be either the upper PCA or keypad The keys on this unit are touch sensitive keys It is necessary to use the keypad diagnostics to troubleshoot the key functions Procedure 1 Set the circuit breaker in the off position WARNING Before continuing with this procedure review the Warning and Caution statements listed in Section One of the Commercial Treadmill Service Manual 2 Ifthe treadmill powers up and functions normally until a particular key s is pressed skip to step 13 3 If an Error 5 key depressed message is immediately displayed when the treadmill is powered up continue with the next step 4 This condition may be caused by either the keypad or upper PCA Set the circuit breaker in the off position Reach under the display console and disconnect the interconnect cable See Diagram 5 1 Diagram 5 1 Display Console Bottom View Interconnect A Cable Display Housing Screws Interconnect Cable A Interconnect Block 5 Remove the four screws that fastens the display housing front panel to the display conso
19. ircuit breaker Press the keys STOP 6 5 sequentially The display will momentarily read ODOMETER The treadmill s odometer will be displayed as 1234567 MPH or 1234567 KPH Note The odometer data is stored in non volatile memory on the upper PCA If the upper PCA is replaced the odometer data will be lost Press the ENTER key to proceed to the hour meter display The display will momentarily read HOUR METER The operating time of the unit will be displayed as 12345 HOURS The operating time is defined as total amount of time that the unit has operated in program modes with the drive motor running The hour meter is also used to provide the time stamp for the error code log Press the ENTER key to proceed to the software version display The display will momentarily read SW VERSION The a W keys will scroll through the software versions The software versions will be displayed as UPPER APP SOFTWARE XX X UPPER BOOT SOFTWARE and LOWER SOFTWARE XX X Press the ENTER key to proceed to the error log The error log will store up to 10 error conditions The errors are logged with the most recent error in position one When a new error condition occurs each existing error is pushed down one position in log If there was an error in position 10 when a new error was logged the error that was in position 10 will be lost Page 7 13 14 15 16 9 33i 9 35i Treadmill Each error in the log will show the
20. it breaker in the on position Press the QUICK START to start the running belt Use the INCLINE w key to lower the incline to 0 Set the treadmill circuit breaker in the off position and remove the AC line cord from the AC outlet Disconnect the lift motor plugs from J1 and J7 connectors of the lower logic PCA See Diagram 5 2 Remove the lift motor s green frame ground wire from the lift motor support bracket Lay the replacement lift motor on the floor in front of the treadmill and connect it s two plugs to the J1 8 J7 connectors of the lower logic PCA Calibrate the lift motor per Procedure 4 1 steps 4 7 Lay the treadmill on either its left or right side as convenient Remove the hitch and clevis pins from the top and bottom of the lift motor Remove the lift motor from the treadmill Set the calibrated lift motor in its mounting position Replace the upper clevis and hitch pins Replace the lower clevis and hitch pins It may be necessary to slightly rotate the lift tube to align it so that the clevis pin may be inserted To align the hole in the lift tube rotate it in the direction that will cause the least amount of rotation to make alignment possible Route the lift motor cables to the lower PCA Plug the lift motor plugs into the J1 amp J7 connectors on the lower logic PCA Check treadmill operation per Procedure 3 Page 26 9 33i 9 35i Treadmill Procedure 6 2 Replacing the Lift Platform 1 Set the
21. le These screws are located on the rear of the display console Page 16 7 10 11 12 13 14 15 9 33i 9 35i Treadmill Carefully lift the display housing front panel off of the display housing backing plate Disconnect the interconnect cable heart rate cable and stop switch cable from the upper PCA Disconnect the keypad cable from the upper PCA See Diagram 5 2 Heart rate Connector CSAFE Connector Keypad Cable Interconnect Cable Connector Stop Switch Connector Holding the display housing by the plastic portions do not handle the upper PCA or keypad PCA reconnect the interconnect cable to the upper PCA Set the circuit breaker in the on position If a key depressed message is immediately displayed when the treadmill is powered up replace the upper PCA If a key depressed message is not displayed when the treadmill is powered up replace the display housing front panel The display housing front panel is equipped with the keypad If you have performed all of the procedures above and have been unable to correct the problem call Precor customer service Access the diagnostics program per procedure 2 1 If the key s necessary to access the diagnostic program is not functioning skip to step 14 Test the keypad per Procedure 2 1 step 6 If all of the keys test good the problem may be user error or a key function that is normally disabled during a particular user pro
22. ll Wiring Diagram 7 1 9 33i 9 35 PA HR PCA Keypad J4 J1 1J1 2 J1 3 J1 4 Upper PCA ai je es B J5 ES al BK Line ek mA ne a ae ik i BR BK Circuit Breaker Cord Note 1 HR PCA term J1 1 is connected to the left bottom grip J1 2 to the left top grip J1 3 to the right top grip and J1 4 to the right bottom grip Page 43 9 33i 9 35i Treadmill UNIEJ JI JAB ZEA TO Hay drap Deny AUG i SEG A Addng AD IPA OSL JAKA gt hod NA ETE oz au pasds SAL AJM H cha LIES 3 Sa es Wa 4H we H MI l WA fees me S UE kw ji aise Sls poet ED SEA NPE HA cm ware HH Joge yay EMD a qama dope TITTI VId IEH HESH orl Su lt u Block Diagram 7 2 9 33i 9 351 HOndIseq J009 Eiseq sapoiq Bum UB yadi IMLUPESAL MAd IGE6 ETB Page 44
23. lower PCA Page 29 10 11 12 13 14 9 331 9 351 Treadmill Feed the three pin lift motor connector through the grommet in the lower PCA bracket and insert it in the J7 connector of the lower PCA Insert the large lift motor connector in the J1 connector of the lower PCA Dress all of the above wiring into the appropriate wire clips along their routing Insert the AC line cord from the AC outlet Set the treadmill circuit breaker in the on position Check treadmill operation per Procedure 3 Page 30 9 33i 9 351 Treadmill Procedure 6 4 Replacing the Speed Sensor 1 Set the treadmill circuit breaker in the off position Remove the AC line cord from the AC outlet 2 Disconnect the plug from the J3 connector on the lower PCA 3 Rotate the flywheel so that the speed sensor is between flywheel lobes 4 Remove the screws that fastens the speed sensor mounting bracket to the treadmill drive motor See Diagram 6 4 Diagram 6 4 Speed Sensor Mounting Speed Sensor Speed Sensor Mounting Screw Bracket Mounting Screw Mounting Bracket 5 Remove the mounting bracket from the drive motor 6 Remove the two screws that fasten the speed sensor to the bracket 7 Mount the replacement speed sensor on the mounting bracket with the screws removed in step 6 Torque the screws to 8 inch pounds 8 Mount the bracket on the drive motor with the screws removed in step 4 Torque the mounting screws to
24. ng a key will cause the upper of the two dots associated with the key to go out Test all of the keys in this manner Tug on the safety key lanyard to ensure that the STOP key is activated Press and hold the ENTER key to proceed to the heart rate test The display will momentarily read HEART RATE TEST The heart rate test will display the heart rate being received during this test from either a chest strap transmitter or test transmitter Three heart rate values will be displayed They will be prefixed U for unfiltered F for filtered and P for Polar filtering The Polar filtered heart rate will also appear in the normal heart rate display since Polar filtering is the filtering used during normal operation The right most red LED in the smart rate display will flash each time a heart beat is detected Note If there is not a heart rate receiver installed or there is a bad or intermittent connection between the heart rate receiver and the upper PCA the messages in step 9 will be replaced by the message NO HEART RATE RECEIVER Press the ENTER key to proceed to the lift test The display will momentarily read LIFT TEST Two numbers will be displayed the percent of lift and A D number related to the current lift position The A D analog to digital number represents the lift potentiometer reading The A D number will be in the range of 0 to 255 The lift may be operated using the INCLINE keys The incline percen
25. odometer reading in miles and the time hour meter when the error occurred The errors are displayed as 1 ER20 1234567 MI 12345 HRS The arrows keys will allow you to scroll through the log When the first unused position is reached in the log the message NO MORE ERRORS will be displayed When the QUICK START key is held for 2 seconds the message HOLD TO CLEAR ERRORS will be displayed If the QUICK START key is held for an additional 2 seconds the message CLEARED will be displayed When the QUICK START key is released the message NO MORE ERRORS will be displayed and all error are erased from the log Press the STOP or ENTER key to exit the information display Page 8 9 33 9 35i Treadmill Procedure 2 3 Accessing the User Parameter Program This procedure allows you to change the following settings e Set Measurement Units e Enable Disable Password Set User Name Procedure 1 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker 2 Press keys STOP 5 6 7 1 sequentially 3 The display will momentarily read SELECT UNITS 4 The currently selected measurement unit will then be displayed 5 Use the a v keys to toggle between U S STANDARD and METRIC 6 Press the ENTER key to select the currently displayed measurement unit 7 The display will momentarily read PASSWORD 8 Usethe a v keys to select either PASSWORD ENABLED or PASSWORD DISABLED 9 Press the STOP or ENTER key to e
26. ram 6 5 Treadmill Dress Panel Rear View Circuit Breaker Brown Wire Brown Wire l Line Filter Line Cord Brown Wire Blue Wire Green Yellow Wire Line Cord AC Line Filter Blue Wire Line Cord Green Yellow Wire 3 Disconnect both brown wires from the circuit breaker 4 Note the orientation of the circuit breaker in the dress panel The replacement circuit breaker must be mounted in the same orientation Remove the circuit breaker mounting screws Remove the circuit breaker from the treadmill 5 Setthe replacement circuit breaker in its mounting position When viewed from the front the circuit breaker labeling should be with OFF on the right hand side Fasten the circuit breaker to the treadmill dress panel using the screws removed in step 4 6 Connect the brown wires from the line cord and AC line filter as shown in Diagram 6 5 7 Set the dress panel in its mounting position hand start the four mounting bolts and the sheet metal screw removed in step 2 Torque the four dress panel bolts to 120 inch pounds Torque the sheet metal screw to 90 inch pounds 8 Replace the hood per Procedure 6 11 Page 35 9 33 9 35i Treadmill 9 Check treadmill operation per Section 3 Page 36 9 33i 9 35i Treadmill Procedure 6 7 Replacing the Line Filter Set the treadmill circuit breaker in the off position and unplug the treadmill s line cord from the AC outlet Remove the sheet metal screw that is approximately in
27. rtantly a non dedicated circuit may constitute a safety hazard to the treadmill operator 120 Vac Systems 120 Vac distribution systems utilize a single pole circuit breaker hot lead and a neutral lead connected to a common neutral ground bar The A C safety ground green wire is connected to a separate ground bar in the distribution system The most common problems found are 1 the circuit is fed by a circuit breaker of less than 20 amp capacity 2 the circuit breaker correctly feeds a single A C outlet but the neutral is common between several A C outlets and 3 both the hot and neutral leads feed several A C outlets The appropriate correction action or actions see below must be followed if any of the above conditions exist Corrective actions should only be undertaken by a licensed electrician 1 The circuit breaker feeding the treadmill is not a 20 amp circuit breaker If the circuit breaker is greater than 20 amps the circuit breaker should be replaced with a 20 amp circuit breaker If the circuit breaker is less than 20 amps the circuit breaker must be replaced with a 20 amp circuit breaker and the wiring from the A C distribution must be capable of safely handing 20 amps If the A C wiring is under sized it must be replaced with wire capable of safely handling 20 amps Please refer to local electrical codes when determining the appropriate wire size for a 20 amp circuit Page 24 9 33i 9 35i Treadmill The circ
28. rush holder See Diagram 6 6 Diagram 6 6 Drive Motor Brush Brush Brush Spring Slide the replacement brush into the brush holder Be sure that the angled edge of the brush is oriented so that the brush face makes full contact with the motor commutator Reinstall the brush spring and connect the brush wire to the tab on the brush holder Replace the heavy paper cover in the brush access opening Replace the brush cover and fasten it with the screws removed in step 3 Repeat 3 8 with remaining drive motor brush Page 39 9 33i 9 35i Treadmill 9 Replace the hood per Procedure 6 11 10 Check treadmill operation per Procedure 3 Page 40 9 33i 9 35i Treadmill Procedure 6 10 Removing and Replacing the Hood 1 Set the treadmill circuit breaker in the off position and unplug the treadmill s line cord from the AC outlet 2 Remove the four bolts that mount the hood the treadmill Note that only two front bolts utilize flat washers 3 Remove the hood from the treadmill 4 The rear hood mounting nuts are mounted in slots and are able to float Diagram 6 7 Rear Hood Mounts Rear Hood Mount 5 Setthe replacement hood in its mounting position Using a thin bladed screwdriver or similar tool into one of the rear hood mounting holes and use the screw diver to align the hood mounting nut with the hole in the hood Hand start one of the rear hood mounting bolts 6 Repeat step 5 for remaining rear
29. screws that fasten the drive motor cooling fan onto the drive motor Remove the fan from the drive motor 9 35 only Mount the drive motor cooling fan onto the replacement drive motor with the screws removed in step 7 Torque the fan mounting screws to 25 inch pounds Set the drive motor in it s mounting position Replace and hand tighten the drive motor mounting screws removed in step 6 Set the drive belt in place on the drive motor pulley Tension the drive belt and mount the drive motor per Procedure 4 2 steps 3 5 Connect the brown and blue fan wires to the drive motor cooling fan The blue and brown wires can be connected to either terminal 9 35 only Connect the black and red drive motor wires to the mating black and red connectors on the lower PCA Set the sped sensor and mounting bracket in position on the drive motor and fasten with the screws removed in step 3 Torque the mounting screws to 25 inch pounds Re install the hood per Procedure 6 11 Page 33 9 33i 9 35i Treadmill 16 Check treadmill operation per Procedure 3 Page 34 9 33i 9 35i Treadmill Procedure 6 6 Replacing the Circuit Breaker 1 Set the treadmill circuit breaker in the off position and unplug the treadmill s line cord from the AC outlet 2 Remove the sheet metal screw that is approximately in the center of the treadmill dress panel Remove the four bolts that fasten the treadmill dress panel to the treadmill Diag
30. tage and A D numbers will change accordingly The A D reading will be used later in this service manual to calibrate the lift Press the ENTER key to proceed to the belt speed test The display will momentarily read BELT SPEED TEST The speed of the running belt is controlled by the SPEED keys during this test The following values are displayed time that the running belt has operated during this test current in amps through the drive motor belt speed in MPH and power bits PWM value This test is valuable in diagnosing treadmill load conditions such as running bed and or running belt condition As load is increased the speed is kept at a constant value as set via the SPEED keys and the current and power bits will vary proportionately to the load Page 5 9 33i 9 35i Treadmill 20 It is suggested that you perform this test on a treadmill known to be in excellent operating condition Note the values displayed at a fixed speed such as 3 MPH and your body weight Those values may then be used to benchmark the operation of treadmills you are diagnosing 21 Press the Stop or ENTER key to exit the diagnostics routine Page 6 9 33i 9 35i Treadmill Procedure 2 2 Accessing the Information Display Program The information display will access the following data Odometer Hour meter Software version Error log Procedure Plug the power cord into the wall outlet then turn on the treadmill with the c
31. ter does not read the presence of AC line voltage replace the lower logic PCA per Procedure 6 3 If the UP LED does not illuminate and the display indicates that the lift should be moving upward replace the upper PCA per Procedure 6 8 If the AC voltmeter reads the presence of AC line voltage and an error 40 is displayed go to step 10 If the AC voltmeter reads the presence of AC line voltage and an error 42 is displayed continue with step 11 Set the treadmill s circuit breaker in the off position and remove the AC line cord from the AC outlet Remove the lift motor connector from the J1 connector on the lower PCA Visually inspect the lift motor connector for broken or improperly crimped connections Using an ohmmeter read the resistance between terminals 1 amp 4 and between terminals 3 amp 4 Both readings should be approximately 12 If either reading is open or very high resistance replace the lift motor per Procedure 6 1 Set the treadmill s circuit breaker in the off position and remove the AC line cord from the AC outlet Remove the lift motor connector from the J7 connector on the lower PCA Visually inspect the lift motor connector for broken or improperly crimped connections Using an ohmmeter measure between terminals 1 8 3 1 amp 2 and 2 amp 3 of the lift motor connector Terminals 1 and 3 should read approximately 1 KQ The sum of the two readings between terminals 2 amp 3 and 1 amp 2 should total
32. the center of the treadmill dress panel Remove the four bolts that fasten the treadmill dress panel to the treadmill Disconnect all of the wiring from the line filter Remove the mounting hardware that fastens the line filter to the treadmill dress panel Set the replacement line filter in it s mounting position the side with three terminals must face the circuit breaker Fasten the line filter to the treadmill dress panel with the mounting hardware removed in step 4 Connect the wiring to the line filter per Diagram 6 10 Replace the AC line filter wiring as shown in Diagram 6 5 Set the dress panel in its mounting position hand start the four mounting bolts and the sheet metal screw removed in step 2 Torque the four dress panel bolts to 120 inch pounds Torque the sheet metal screw to 90 inch pounds Replace the hood per Procedure 6 11 Check treadmill operation per Section 3 Page 37 9 33i 9 35i Treadmill Procedure 6 8 Replacing the Line Cord 10 11 12 Set the treadmill circuit breaker in the off position and unplug the treadmill s line cord from the AC outlet Remove the sheet metal screw that is approximately in the center of the treadmill dress panel Remove the four bolts that fasten the treadmill dress panel to the treadmill Remove the nut that fastens the line cord s ground wire green yellow wire to the dress panel Disconnect the line cord s brown wire from the circuit breaker Disconn
33. the procedures you need to access the diagnostic features on this treadmill Section Three Checking Treadmill Operation This section provides you with a quick way of checking treadmill operation Check treadmill operation at the end of a maintenance procedure and when it is necessary to ensure that the treadmill is operating properly Section Four Inspection and Adjustment Procedures Perform inspection procedures when a trouble symptom points to a particular problem and after removing and replacing major components Many maintenance problems can be fixed by adjusting various treadmill components This section also provides you with the step by step procedures required to make these adjustments Section Five Troubleshooting Procedures The diagnostic and troubleshooting procedures contained in this section should be performed when it is necessary to isolate a problem to a particular component Section Six Replacement Procedures When a treadmill component must be replaced go to this section and follow the step by step procedures required to remove and replace the component Section Seven Technical Diagrams and Parts Lists This section includes wiring diagrams and block diagrams for the 9 33i and 9 35i Treadmill General Information For the latest exploded view diagram part number and part pricing information visit the Precor dealer website at www precor com connection Page 2 Technical Specifications Physical Specifications
34. uit breaker correctly feeds a single A C outlet but the neutral is common between several A C outlets The common neutral lead must be removed from treadmill s A C outlet and a new neutral lead from the treadmill s A C outlet to the A C neutral distribution bar must be added Both the hot and neutral leads feed several A C outlets Both the common neutral and hot leads must be removed from treadmill s A C outlet and a new neutral lead and hot lead from the treadmill s A C outlet to the A C neutral distribution bar and circuit breaker must be added 240 Vac Systems 240 Vac distribution systems utilize a double pole circuit breaker two hot leads The A C safety ground green wire is connected to a ground bar in the distribution system The most common problems found are 1 the circuit is fed by a circuit breaker of less than 20 amp capacity and 2 both the hot leads feed several A C outlets The appropriate correction action or actions see below must be followed if any of the above conditions exist Corrective actions should only be undertaken by a licensed electrician 1 The circuit breaker feeding the treadmill is not a 20 amp circuit breaker If the circuit breaker is greater than 20 amps the circuit breaker should be replaced with a 20 amp circuit breaker If the circuit breaker is less than 20 amps the circuit breaker must be replaced with a 20 amp circuit breaker and the wiring from the A C distribution must be
35. xit the program Page 9 9 33i 9 35i Treadmill Procedure 2 4 Documenting Software Problems When a problem is found with the software in the upper or lower PCA record the information listed below When a problem occurs record the following information Model and serial number Software version number Program number running when the problem occurred A description of a What happened or failed to happen b The action taken by the user just before the problem occurred c Problem related information such as how far into the program the problem occurred the work level being used when the problem occurred etc The frequency of occurrence Page 10 9 33i 9 35i Treadmill Section Three Checking Treadmill Operation This section provides you with a quick method of checking treadmill operation Check treadmill operation at the end of a maintenance procedure and when it is necessary to ensure that the treadmill is operating properly Procedure 4 5 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker Place the treadmill in Manual Mode Adjust the speed of the running belt to 2 3 m p h Operate the treadmill for at least 5 minutes a Concentrate on the feel of the running belt and the sound of the drive motor and rollers Be on the alert for unusual noises smells or vibrations b Log the power bits under loaded and unloaded conditions c Observe the LED s

Service Manual, 9.33i, 9.35i.fm

Contents

Download Pdf Manuals

Related Search

Related Contents