Precor 9.25i Service manual
Contents
1. r SHARAT RATE CTAA ax m mm xn m wa mr maa ctr Total Calories Hart Baba Fanaa Score Page 7 9 25 9 251 Treadmill Procedure 2 3 Resetting All User Information This procedure completely resets the M9 25 user statistics All previously saved user information will be either reset to zero or changed to default values All odometers will be reset to zero If you want to save accumulated user information and odometer readings record the information before performing this procedure Note This procedure is not available on the 9 25i User stats must be reset individually per Procedure 2 4 Procedure 1 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker 2 With the PRECOR M9 25 or PRECOR 9 251 banner scrolling press the INCLINE A INCLINE v SPEED A and SPEED wkeys simultaneously and hold them for approximately five seconds or until zeros are displayed in the right display windows Release the keys 3 Watch the electronic display The right middle display window a b C d e Note Resets to all zeros then increments to 119 Resets to 1000 then increments to 1119 Resets to 2000 then increments to 2119 Resets to 3000 then increments to 3119 Displays the User ID prompt If the upper PCA or prom is replaced all user information will be re initialized Page 8 9 25 9 251 Treadmill Procedure 2 4 Resetting an Individual User2. on position Using an AC voltmeter monitor the voltage between terminals 1 and 2 red and white wires of the P2 connector Enter the manual program and press the INCLINE key The measurement should be approximately 120 Vac line voltage If the voltage is present and the lift motor moves normally skip to step 10 The voltage will only be present until such time as an error occurs If line voltage is not present skip to step 11 If line voltage is measured but the motor does not move replace the lift motor Monitor terminals 1 and 3 white and black wires of P2 Enter the manual program and press the INCLINE v key The measurement should be approximately 120 Vac line voltage If the voltage is present and the lift motor moves normally skip to step 12 The voltage will only be present until such time as an error occurs If line voltage is measured but the motor does not move replace the lift motor If line voltage is not present in both steps 9 and 10 there are three parts that could cause the problem There are not any good tests to check these parts other than substituting a known good part They are lower PCA ribbon cable and upper PCA Replace only one part at a time If the new part does not correct the problem replace the original part If you have performed all of the above tests and the lift system is still not functioning call Precor Technical Support Page 24 9 25 9 251 Treadmill Procedure 5 4 Troubleshooting th
3. co or significantly high or low replace the lift motor 5 If you have performed all of the above tests and an error still occurs when the lift motor operates there are three parts that could cause the problem There are not any good tests to check these parts other than substituting a known good part They are lower PCA ribbon cable and upper PCA Replace only one part at a time If the new part does not correct the problem replace the original part 6 Ifyou have performed all of the above tests and the lift system is still not functioning call Precor Technical Support 7 Set the treadmill circuit breaker in the off position Remove the F2 2 amp slow blow fuse from the lower PCA Measure the fuse with an ohmmeter The measurement should be 10 or less If the fuse is good re insert the fuse and skip to step 9 If the fuse is open significantly high replace the fuse Before operating the lift motor it is necessary to perform a continuity test on the lift motor Page 23 10 11 12 9 25 9 251 Treadmill Remove the P2 connector from the lower board Using an ohmmeter measure between terminals 1 and 3 of P2 between terminals 1 and 2 of P2 and between terminals 2 and 3 of P2 The measurements should be approximately 14 50 14 50 and 290 respectively If any of the measurements are significantly low replace the lift motor Re insert the P2 connector in the lower PCA Set the treadmill circuit breaker in the
4. console Make sure that each LED lights as the in formation corresponding to that LED is displayed on the electronic console Press the STOP key When the treadmill comes to a stop view the electronic console as the treadmill scans time speed distance and percent Press the INCLINE A key while viewing the electronic console Confirm that the running bed inclines and the incline display increments to fifteen percent as the INCLINE A key is pressed Press the INCLINE W key while viewing the electronic console Confirm that the running bed returns to a level position and the incline display decrements to zero percent as the INCLINE Y key is pressed Turn off the treadmill with the circuit breaker then unplug the treadmill from the wall outlet Page 16 9 25 9 251 Treadmill Procedure 4 1 Calibrating the Lift System WARNING Always turn off the circuit breaker and unplug the treadmill before you remove the treadmill hood Procedure 1 Remove the hood as described in Procedure 5 1 of the Residential Treadmill Service Manual Remove the lift motor from the treadmill as described in Procedure 6 4 of this appendix Place the treadmill upright Lay the motor in front of the treadmill Plug the lift motor connector to the lower PCA Connect the lift motor ground to the treadmill frame Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker Enter calibration mode by pressing and holding t
5. 9 25 9 251 Treadmill 9 25 9 25i Treadmill VVarning 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 2003 Precor Incorporated Unauthorized Reproduction and Distribution Prohibited By Law Page 1 9 25 9 251 Treadmill Section One Things you Should Know About This Appendix Section One Things You Should Know This section includes technical specifications and a procedure matrix Read this section as well as the Treadmill Owner s Manual before you perform the maintenance procedures in this manual Section Two Software Features Precor s 9 25 and 9 25i Treadmill is programmed with several diagnostic and setup feature
6. HERWISE The Smart Rate system is operating Continue with the next step correctly There is no need to continue with this procedure Re adjust the fit of the chest strap If the HEART RATE indicator still does not blink as described in Step 4 If the chest strap transmitter has a replaceable battery replace the battery If the HEART RATE indicator still does not blink as described in Step 4 THEN OTHERWISE Continue with the next step The Smart Rate system is operating correctly There is no need to continue with this procedure Page 21 9 25 9 251 Treadmill 6 Hold the Heart Rate Test Transmitter Precor part number 20045 101 near the display housing If the HEART RATE indicator on the electronic console blinks with the LED on the Smart Rate Test Generator THEN OTHERWISE The chest strap assembly is bad The heart rate receiver assembly is Wear a new chest strap assembly bad Replace the heart rate receiver as when you use the Smart Rate described in Procedure 5 4 of the System Residential Treadmill Service Manual 7 Press ENTER to return to the User ID Page 22 9 25 9 251 Treadmill Procedure 5 3 Troubleshooting the Lift System System Description The lift system is powered by a 120 Vac lift motor that uses two independent motors windings one operates the motor in an upward direction and one operates the motor in a downward direction The motor contains a 10 KQ or 1KQ potentiometer depending o
7. T and then the SPEED A key Hold both keys for 3 5 seconds then release On 9 25i treadmills press keys 4 5 6 7 sequentially Page 12 9 25 9 251 Treadmill 7 Use the SPEED A or SPEED v keys to select the alternate measurement standard 8 Press ENTER twice to return to the User ID prompt Page 13 9 25 9 251 Treadmill Procedure 2 7 Determining Software Version Numbers Software version numbers are invaluable for tracking and identifying problems and staying aware of changes to the operation and features of the product Procedure 1 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker 2 With the PRECOR M9 25 banner scrolling press the ENTER key On 9 25i treadmills with the PRECOR M9 25 banner scrolling press keys RESET 5 6 7 1 sequentially 3 On 9 25 treadmills note the version number displayed in the right middle display window The software version is not displayed in this procedure on 9 25i treadmulls Note If you cannot determine the software version number in this manner look at the label on the PROM mounted on the upper PCA The part number stamped on the PROM indicates the software version number Page 14 9 25 9 251 Treadmill Procedure 2 8 Documenting Software Problems When a problem is found with either the software or upper or lower PCA s record the information listed below If you isolated the problem to either the PROM upper PCA or lower PCA in
8. bration The lift calibration number indicates the physical position of the lift As lift is operated the lift calibration number will track the lifts physical position The lift calibration number will be used to initialize the lift Press the INCLINE keys while you watch the right display window see Diagram 2 1 The lift calibration number increments as the INCLINE A key is pressed and decrements as the INCLINE Y key is pressed Press ENTER to continue The third routine is the power bits display Power bits is a number that indicates the amount of time that power is applied to the drive motor duty cycle The power bit number reflects changes in speed and load Power bits and running belt speed will be displayed Notice the power bits number will increase or decrease as speed and or load is increased or decreased The power bit number can be used to determine treadmill loading Press ENTER to continue The fourth routine is the keypad test Seven dashed lines will appear on the display Each dash will correspond to a key on the display Press each key one at a time the corresponding dash will enlargen indicating the key that was pressed Use this test to determine if the keys are functioning properly Press the INCLINE v and SPEED A keys simultaneously to continue The fifth routine is the safety key test When the safety key is inserted SAFE ON is displayed in the right display window Remove the safety key from the upper display module whil
9. ch pin from the clevis pin that holds the top of the lift motor to the treadmill frame Remove the clevis pin from the top of the lift motor 6 Remove the e rings and lift pins that secure the lift motor nut to the lift platform Remove and set aside the lift motor Replacing the Lift Motor 7 Calibrate the treadmill as described in procedure 4 1 of this appendix 8 Line up the mounting holes at the top of the lift motor with the lift motor mounting holes on the treadmill frame 9 While an assistant holds the lift motor in place position the clevis pin through the top of the lift motor and the treadmill frame Push the hitch pin through the clevis pin 10 Replace the e rings and lift pins that secure the lift motor nut to the lift platform 11 Secure the ground wire to the lift motor ground stud 12 Connect the lift motor wiring assembly to the lower PCA 13 Check the operation of the treadmill as described in Section Three of this appendix then replace the hood Page 30 9 25 9 251 Treadmill Procedure 6 5 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
10. clude the information you recorded with the malfunctioning PROM or PCA when you ship it to Precor When a problem occurs record the following information Model and serial number Software version number Note Determine the version number as in Procedure 2 7 User and program number running when the problem occurred A description of a What happened or failed to happen 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 15 9 25 9 251 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 1 2 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 mph 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 Measure and log the AC input current under loaded and unloaded conditions c Observe the LEDs on the electronic
11. e External A C Power Source It is extremely important that any Precor 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
12. e the lift motor nut to the lift platform Note It is not necessary to remove the lift motor when you remove the lift platform 4 Remove the e rings from the ends of the lift platform shaft Slide the shaft away from the lift platform and treadmill frame 5 Remove the wheels from the lift platform Mount the wheels on the new lift platform Replacing the Lift Platform 6 With the treadmill still on its left side position the lift platform at its mounting position 7 Slide the lift platform shaft into the lift platform and treadmill frame 8 Replace the e rings on the ends of the lift platform shaft 9 Replace the e rings and lift pins that secure the lift motor nut to the lift platform 10 Return the treadmill to an upright position 11 Check the operation of the treadmill as described in Section Three of this appendix then replace the hood Page 29 9 25 9 251 Treadmill Procedure 6 4 Replacing the Lift Motor WARNING Always turn off the circuit breaker and unplug the treadmill before you remove the treadmill hood Removing the Lift Motor 1 Remove the hood 2 Disconnect the lift motor wiring assembly from the lower PCA 3 Remove the ground wire from the lift motor ground stud Note Place a drop cloth under the treadmill to protect the flooring and to ensure that the treadmill handrails are not scratched or damaged when you perform the next step 4 Place the treadmill on its right side 5 Remove the hit
13. e you watch the right display window SAFE OFF is displayed Replace the safety key and press ENTER to continue The sixth routine is the heart rate test When a chest strap transmitter or test transmitter is used the heart rate will be displayed Press ENTER to continue The last routine is the circuit breaker trip test This test checks the ability of the treadmill to trip the circuit breaker under software control If the STOP key is pressed the trip signal will be sent to the circuit breaker and the circuit will trip shutting off the treadmill If you do not wish to trip the circuit breaker press the ENTER key to exit the diagnostic program Page 4 Diagram 2 1 Display Housing 9 25 r alan itib m r batoriy at onnar marud betree if you Tee hinto dzzy sto Wren Met inus ardstce cutotre ENTER P USER LD WEIGHT AGE PROGRAM L WE 855 CARBIOWASCULAR oe tS MART RATE 7 A STOP INCLINE CONTROL HOLD TO RESET CAUTION Foutecord of Safety Key under handiebarwhen attaching clip tp cbthing 9 25 9 251 Treadmill PACE SPEED DISTANCE INCLINE TOTAL CALORIES HEARTRATE FITHESS SCORE V A I L Bee QUICKSTART Page 5 9 25 9 251 Treadmill Procedure 2 2 Accessing the 9 25i Treadmill s Diagnostic Program Procedure 10 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker The diagnostic program provide s
14. eturn to the User ID prompt Diagram 2 4 Error Code Log Err 22 1 Page 11 9 25 9 251 Treadmill Procedure 2 6 Selecting United States Standard or Metric Units Selecting United States standard units causes data to be displayed in feet miles and pounds Metric data is displayed in meters kilograms and kilometers Procedure 1 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker 2 Choose one IF THEN You wish to verify the measurement Continue with the next step standard the treadmill is currently using before you change the standard You wish to change the measurement Skip to Step 5 standard the treadmill is using Checking the Measurement Standard 3 Press ENTER until the WEIGHT indicator light appears 4 Watch the number displayed in the left display window while you press the SPEED A key five or six times Note If the treadmill is using United States standard units the numbers in the left display window are repeatable multiples of 5 such as 160 165 170 175 etc Otherwise the treadmill is using metric units Changing the Measurement Standard 5 Press and hold STOP to return the PRECOR M9 45 banner Note On 9 25 treadmills releasing the QUICK START key before the SPEED A key when you perform the next step may cause the selected measurement standard to change to the alternate measurement standard 6 On 9 25treadmills press the QUICK STAR
15. for a 20 amp circuit Page 25 9 25 9 251 Treadmill The circuit 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 a
16. he ENTER key or press keys 4 5 1 7 6 5 7 6 1 sequentially Use the INCLINE keys to set the Calibration Number to 20 Place 3 8 bolts in a mounting hole on the plastic nut and the top mounting hole of the lift motor Place a ruler next to both left or both right edges of the bolts Turn the drive screw until the distance between the bolts is 4 00 inches 1 16 see Diagram 4 1 Note 1 16 is 1 2 of a revolution of the drive screw 9 Hold the white plastic nut on the drive screw Press the INCLINE keys until the plastic nut clears the lift motor housing Note The white plastic nut must not rotate while you are pressing the INCLINE keys 10 Exit the Calibration Mode by pressing ENTER twice 11 Turn off the treadmill with the circuit breaker then unplug the treadmill from the wall outlet Page 17 9 25 9 251 Treadmill Diagram 4 1 Lift Motor Calibration Note When you perform the next step keep the white plastic nut in the same relative position to the drive screw If necessary though you may turn the drive screw 1 2 of a revolution 12 Mount the lift motor on the treadmill as described in Procedure 6 4 of this appendix 13 Check the operation of the treadmill as described in Section Three of this appendix Page 18 9 25 9 251 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 uppe
17. he new fan onto the motor shaft If you are installing a new motor on the treadmill push the fan onto the shaft of the new motor 4 Replace the hood Page 27 9 25 9 251 Treadmill Procedure 6 2 Replacing the Speed Sensor WARNING Always turn off the circuit breaker and unplug the treadmill before you remove the treadmill hood Removing the Speed Sensor 1 Remove the hood 2 Disconnect the speed sensor cable from the lower PCA 3 Remove the nut that secures the speed sensor to the speed sensor bracket Set aside the speed sensor Replacing the Speed Sensor 4 Position the speed sensor next to the speed sensor bracket Install the nut that screws the sensor to the bracket 5 Connect the speed sensor cable to the lower PCA 6 Inspect and adjust the gap between the speed sensor and the target as described in Procedure 3 4 of the Residential Treadmill Service Manual 7 Check the operation of the treadmill as described in Section Three of this appendix then replace the hood Page 28 9 25 9 251 Treadmill Procedure 6 3 Replacing the Lift Platform WARNING Always turn off the circuit breaker and unplug the treadmill before you remove the treadmill hood Removing the Lift Platform 1 Remove the hood 2 Place the treadmill on its left side Note To avoid scratching or marring the treadmill put a drop cloth underneath the treadmill when you perform Step 2 3 Remove the e rings and lift pins that secur
18. in 4 of J3 5 Vdc 500 mVdc Pin 5 of J3 5 Vdc 500 mVdc Pin 7 of J3 5 Vdc 500 mVdc Pin 8 of J3 5 Vdc 500 mVdc Pin 9 of J3 5 Vdc 500 mVdc Pin 10 of J3 5 Vdc 500 mVdc Table 5 2 Voltage Test Points Function Keys Pressed 10 11 12 13 14 Place the positive At the display The voltmeter should voltmeter lead on enclosure press read between Pin 3 of J3 ENTER 0 Vdc and 500 mVdc Pin 4 of J3 INCLINE DOWN 0 Vdc and 500 mVdc Pin 5 of J3 INCLINE UP 0 Vdc and 500 mVdc Pin 7 of J3 STOP 0 Vdc and 500 mVdc Pin 8 of J3 SPEED DOWN 0 Vdc and 500 mVdc Pin 9 of J3 SPEED UP 0 Vdc and 500 mVdc Pin 10 of J3 QUICK START 0 Vdc and 500 mVdc If the voltage readings match those listed in Tables 5 1 and 5 2 and one or more keys do not function replace the upper PCA If the voltage readings in Table 5 1 are incorrect disconnect the keypad cable from the key pad connector and repeat the voltage measuremnts in 5 1 If the voltage readings are now correct replace the display housing keypad If the voltage readings are still incorrect replace the upper PCA If the voltage readings in Table 5 1 are correct and one or more voltage readings in Table 5 2 are incorrect replace the display housing keypad Set the circuit breaker in the off position If necessary carefully re connect the keypad cable to the keypad connector Remove the ground lead of the wrist strap from the treadmill frame then remove the wrist st
19. ix different routines to aid it testing and trouble diagnosis For the purpose of accessing the various software routines including the diagnostics program the display housing keys are hypothetically numbered 1 to 7 from left to right With the PRECOR M9 25i banner scrolling press keys RESET 5 1 7 6 5 7 6 1 sequentially See Diagram 2 2 The first routine is the LED display test The routine will light every LED on the display as the test proceeds It is necessary to watch the display to see if an LED does not light The second routine is lift calibration The lift calibration number indicates the physical position of the lift As lift is operated the lift calibration number will track the lifts physical position The lift calibration number will be used to initialize the lift Press the INCLINE keys while you watch the right display window see Diagram 2 2 The lift calibration number increments as the INCLINE A key is pressed and decrements as the INCLINE v key is pressed Press ENTER to continue The third routine is the power bits display Power bits is a number that indicates the amount of time that power is applied to the drive motor duty cycle The power bit number reflects changes in speed and load Power bits and running belt speed will be displayed Notice the power bits number will increase or decrease as speed and or load is increased or decreased The power bit number can be used to determine treadmill loading Press ENTER to c
20. l Specifications Length 67 inches 170 cm Width 28 5 inches at handrails 71 cm 25 inches at base 63 5 cm Height 44 inches Running surface 51 inches by 17 inches 130 cm by 43 cm Motor 1 7 hp continuous duty Speed 0 5 to 10 mph 0 8 to 16 kph 10 mph is equivalent to a 6 minute mile Incline 0 to 15 grade Power 50 60Hz 120v AC Weight 193 Ibs 87 kg Shipping Weight Electronic Specifications 4 user identifications in memory Programs Manual 2 Interval 1 minute rest 1 minute work 1 minute rest 2 minute work 5 Preprogrammed courses 2 Custom courses Weight Loss Fitness Test Heart Rate Display Readouts Time Distance miles or kilometers Speed mph or kph Incline Calories Heart rate Fitness score Smart rate 233 Ibs 105 kg Page 3 9 25 9 251 Treadmill Procedure 2 1 Accessing the 9 25 Treadmill s Diagnostic Program Procedure 10 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker The diagnostic program provide six different routines to aid it testing and trouble diagnosis With the PRECOR M9 25 banner scrolling press and hold ENTER until the software version number is displayed in the right display windows The first routine is the LED display test The routine will light every LED on the display as the test proceeds It is necessary to watch the display to see if an LED does not light The second routine is lift cali
21. mp 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 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 af 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 26 9 25 9 251 Treadmill Procedure 6 1 Replacing the Fan WARNING Always turn off the circuit breaker and unplug the treadmill before you remove the treadmill hood Removing and Replacing the Fan 1 Remove the hood 2 Remove the fan from the motor shaft 3 Push t
22. n manufacturer driven by the motor that indicates lift position AC power to operate the lift motor is provided by a pair of triacs One triac provides power to the up winding of the lift motor and the other triac provides power to the down winding of the lift motor The triacs are controlled either manually or by software control from the upper PCA 1 lif the lift motor will not move skip to step 7 If the lift motor moves and an error occurs continue with step 2 2 Access the diagnostics program per Procedure 3 2 and proceed to the lift calibration portion of the diagnostics program If the lift calibration number is 0 or 255 skip to step 3 Operate the lift if the lift calibration number does not increment as the lift moves skip to step 3 If the calibration number increments as the lift moves recalibrate the lift per Procedure 5 3 If recalibration does not correct the problem continue with step 3 3 Set the treadmill circuit breaker in the off position Using an ohmmeter measure between terminal 4 white wire and terminal 6 orange wire of the P2 connector on the lower PCA The measurement should be approximately 10 KO or 1KQ If the measurement is open co or significantly high or low replace the lift motor 4 Using an ohmmeter measure between terminals 4 and 5 of P2 and measure between 5 and 6 of P2 on the lower PCA The two measurements should total approximately 10 KO or 1KQ If the measurement is open
23. ontinue The fourth routine is the key pad test Seven dashed lines will appear on the display Each dash will correspond to a key on the display Press each key one at a time the corresponding dash will enlargen indicating the key that was pressed Use this test to determine if the keys are functioning properly Press the INCLINE v and SPEED v keys simultaneously to continue The fifth routine is the safety key test When the safety key is inserted SAFE ON is displayed in the right display window Remove the safety key from the upper display module while you watch the right display window SAFE OFF is displayed Replace the safety key and press ENTER to continue The sixth routine is the heart rate test When a chest strap transmitter or test transmitter is used the heart rate will be displayed Press ENTER to continue Page 6 9 25 9 251 Treadmill 11 The last routine is the circuit breaker trip test This test checks the ability of the treadmill to trip the circuit breaker under software control If the STOP key is pressed the trip signal will be sent to the circuit breaker and the circuit will trip shutting off the treadmill If you do not wish to trip the circuit breaker press the ENTER key to exit the diagnostic program Diagram 2 2 Display Housing 9 25i WD Buza Pepe Tra Peco Piti Epi Cee m Kuu K amp Tim U pr l 2 mimi H Ra ru Bi rt
24. pin dual in line package DIP28 and a forty four pin square package PLCC44 Each of these packages should be removed with a proper 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 DIP28 Notch Page 31 9 25 9 251 Treadmill Wiring Diagram 7 3 9 25 9 25 Lower PCA Power Cord Circuit Breaker Ribbon Cable wle BKI 2 Ferrite Bead BK Speed Sensor Capacitor Upper PCA BK Drive Motor Page 32 9 25 9 251 Treadmill Block Diagram 7 4 9 25 9 251 a v 107 Pa HNH punossy 1044005 YOS SSOID 002 SGA S an wi IGA S umop dn din 0 9 p snun uondu s q uono uuoo lqe uoqq u v d a c 5 u G 5 o 053 06 punolg 92 punog s
25. r PCA or keypad This troubleshooting procedure gives you the information you need to determine which of these components is malfunctioning 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 Residential Treadmill Service Manual 2 Remove the screws that secure the upper display assembly to the upper handrail Carefully pull some excess interconnect cable out from the targa upright Rotate the display housing so that the rear of the upper PCA is facing upward and set the display housing on the upper handrail 3 Attach the wrist strap to your arm then connect the ground lead of the wrist strap to the treadmill frame Set the voltmeter to a range that will conveniently read 6 Vdc Diagram 5 1 Upper PCA Component Layout c 5 S000 0000006 OO J2 P L J1 25 1 4 Set the voltmeter to a range that will conveniently read 6 Vdc 5 Set the circuit breaker in the on position 6 Usea DVM set for DC volts and read between pin 6 of J3 and the each of the pins in Table 5 1 no keys pressed and Table 5 2 with the appropriate key pressed Page 19 9 25 9 251 Treadmill Table 5 1 Voltage Test Points Function Keys Not Pressed Place the positive lead of the The voltmeter should read voltmeter on Pin 3 of J3 5 Vdc 500 mVdc P
26. rap from your arm Position the display enclosure on the display plate Install the screws that secure the display enclosure to the display plate Check the operation of the treadmill as described in Section Three of this appendix Page 20 9 25 9 251 Treadmill Procedure 5 2 Troubleshooting the Heart Rate System If the HEART RATE indicator does not blink with your heart beat when you perform Procedure 2 1 the problem may be either the heart rate receiver assembly or the chest strap assembly This troubleshooting procedure gives you the information you need to determine which of these components is malfunctioning Procedure 1 If you are referring to this procedure because the HEART RATE indicator did not blink properly when you performed Procedure 2 1 THEN OTHERWISE Skip to Step 6 Continue with the next step Plug the power cord into the wall outlet then turn on the treadmill with the ON OFF switch If necessary use conductive spray Precor part number 37364 101 to ensure good contact between the chest strap transmitter and the user put on the heart rate chest strap transmitter Enter the diagnostics program per Procedure 2 1 or 2 2 Proceed to the heart rate test portion of the diagnostics program HArt will be displayed in the right display window when the heart rate routine is accessed If the HEART RATE indicator blinks with your heart beat and the heart rate information displayed is correct THEN OT
27. reliable troubleshooting can be performed on the treadmill More importantly 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
28. s This section contains 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 Wiring and Block Diagrams This section includes wiring and block diagrams 9 25 and 9 25i treadmill General Information For the latest exploded view part number and part pricing information visit the Precor dealer website at www precor com Dealer Page 2 9 25 9 251 Treadmill Technical Specifications Physica
29. s Information This procedure resets accumulated user information and odometer readings for an individual User ID All previously saved user information for a selected User ID will be either reset to zero or changed to default values The odometer reading for the selected User ID will be reset to zero Procedure 1 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker 2 With the PRECOR M9 25 or PRECOR 9 251 banner scrolling press any key 3 At the User ID prompt select the User 105 to be reset using the SPEED A or INCLINE a and SPEED v or INCLINE v keys 4 Press the STOP and QUICKSTART keys together and hold them for approximately two seconds or until the right middle display window displays one of the numbers sets in Procedure 2 2 step 3a 3b 3c or 3d 5 If you do not observe the values listed in Procedure 2 2 step 3b 3c or 3d THEN OTHERWISE Replace the upper PCA as described in This procedure is complete Procedure 5 2 of the Residential Treadmill Service Manual Note If the upper PCA is replaced all user information will be re initialized Page 9 9 25 9 251 Treadmill Procedure 2 5 Displaying the Treadmill Odometer and Error Code Log Procedure 1 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker 2 With the PRECOR M9 25 banner scrolling press the ENTER SPEED wand SPEED A keys simultaneously Contin
30. ue to hold the keys until the message TREADMILL ODOMETER scrolls across the left display window On 9 25i treadmills press keys RESET 6 5 sequentially Note The right display window displays total miles or kilometers on the treadmill see Diagram 2 3 The top display window shows the most significant bits of the number the lower display window shows the least significant bits of the number The number displayed is 102 187 723 in miles or kilometers 3 Press ENTER twice to return to the User ID prompt Diagram 2 3 Odometer Reading For the Treadmill Page 10 9 25 9 251 Treadmill 4 Press ENTER The error buffer is displayed and scrolls across the left display window see Diagram 2 4 The most recent error condition will be displayed in position 1 and the oldest error will be displayed in position 5 When an error is added to a full log the new error will be inserted in position 1 and all other logs will be pushed down one position The error that was in position 5 will be lost 5 Use the SPEED v or INCLINE v and SPEED A or INCLINE A keys to move through the error code log 6 Once you have completed the diagnosis and repair of the treadmill it is generally desirable to clear the error code log Then any subsequent error that are logged will be known to be new error conditions To clear the error code log press the QUICK START and STOP keys simultaneously Or press ENTER to retain the current error information and r
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