Service Manual, 905e, 9.1, 9.10 Treadmill.fm
Contents
1. Turn the electronics housing assembly so that the display label is facing up Carefully move the electronics housing assembly until it can rest on the right handrail Diagram 6 4 Partial Layout of the Upper PCA Remove the ground lead of the wrist strap from the treadmill frame then remove the wrist strap from your arm Check the operation of the treadmill as described in Section Three of this appendix Stop the treadmill by placing the magnetic safety key in the OFF position then unplug the power cord from the wall outlet If the treadmill operates correctly THEN OTHERWISE Skip to Step 31 Continue with the next step If the electronic console displays incorrect data or if all of the display area is blank Page 25 905E 9 1 9 10 Treadmills THEN OTHERWISE Replace the upper PCA as described Continue with the next step in Procedure 6 1 of this appendix Re Installing the Upper PCA 18 19 20 21 22 Replace the screws that secure the upper electronic chassis to the electronics housing assembly Position the electronic console at its mounting position Replace the bolts and washers that secure the electronic console to the upper handrail clamp Position the crank handle at its mounting position Use the 1 8 allen wrench to tighten the set screws that secure the crank handle to the top of the lift jack Check the operation of the treadmill as described in Sect2. Screw Potentiometer Bracket C3 Starwasher Nut Pin Wheel Pressure Washer Spacer washer Lift Jack Collar Lift Column Page 37 905E 9 1 9 10 Treadmills 12 Pull the lift jack from the lift column and set it aside see Diagram 6 9 13 If you are removing the lift jack only THEN OTHERWISE Skip to Step 21 Continue with next step Removing and Replacing the Lift Column 14 Remove the ribbon cable using the appropriate procedure listed in Table 6 2 Table 6 2 Replacing the Ribbon Cable Procedures Procedure 6 3 905e Treadmills and 9 1 Treadmills Made Before September 14 1994 Procedure 6 4 9 10 Treadmills and 9 1 Treadmills Made After September 14 1994 15 Remove the fasteners that secure the upper handrail clamp to the lift column 16 Remove the bolts and washers that secure the lift column to the treadmill frame Diagram 6 9 Removing the Lift Jack from the Lift Column Lift Jack Lift Tube Lift Column Ribbon Cable Page 38 905E 9 1 9 10 Treadmills 17 Slide the lift column through the base of the treadmill frame 18 Position the new lift column at its mounting location 19 Replace the bolts and washers that secure the lift column to the treadmill frame Note If necessary use the rubber mallet to loosen the lift jack shaft from its mounting position 20 Replace the screws and washers that secure the upper handrail clamp
3. SPEED A SPEED V STOP and SCAN ENTER keys simultaneously Record the PROM version number and potentiometer increment number Page 13 10 11 12 13 14 15 16 17 18 19 20 905E 9 1 9 10 Treadmills Loosen the screw that secures the crank handle to the electronic console Remove the crank handle and set it aside Remove the bolts and washers that secure the electronic console to the upper handrail clamp Carefully move the electronic console with the ribbon cable still attached until it can rest on the right handrail The lift jack shaft and potentiometer are exposed Position the crank handle on the lift jack shaft and tighten the crank handle screw See Diagram 9 1 4 Watching the pin wheel slowly rotate the crank handle until the drive wheel is disengaged from the pinwheel If the PROM version number recorded in Step 9 is equal to or greater than 4 0 THEN OTHERWISE Rotate the pin wheel until the Rotate the pin wheel until the electronic console displays 18 electronic console displays 10 12 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet Loosen the crank handle screw and remove the crank handle from the electronic console Place the electronic console over the lift jack shaft and potentiometer Replace the two bolts and washers that secure the electronic console to the upper handrail clamp Position the crank handle at
4. cable into the cable channel at the bottom of the lift column Diagram 6 5 Ribbon Cable in the Cable Channel 18 Using a broom handle or other long narrow object press the ribbon cable into the cable channel that runs the length of the lift column Page 28 905E 9 1 9 10 Treadmills Note If the ribbon cable does not lay in the cable channel along the entire length of the lift column the cable may be caught and nicked or crimped by the floating bearings on the lift jack 19 With the treadmill on its right side insert the lift jack into the lift column Note If necessary use the rubber mallet to force the lift jack cross tube into its mounting position 20 Connect the ribbon cable to the lower PCA 21 Return the treadmill to an upright position Replacing the Lift Assembly Hardware Diagram 6 6 shows an exploded view of the lift assembly 22 Place the collar on the lift jack shaft so that the base of the collar is at the lower end of the shaft 23 Place the spacer washer and then a new pressure washer on the collar 24 Position an empty tube or pipe on the pressure washer and use the hammer to force the pressure washer spacer washer and collar further down on the lift jack shaft 25 Place the drive wheel on the lift jack shaft 26 Replace the screws that secure the potentiometer mounting bracket to the lift column 27 Position the drive wheel so that the top of the drive wheel is flush with the
5. diagnostic and setup features 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 Technical Diagrams and Parts Lists This section includes wiring diagrams exploded view diagrams and parts lists for the 905e 9 1 and 9 10 Treadmills Section Eight Troubleshooting Flow Charts This section allows you to troubleshoot malfunctions and find problems by analyzing and diagnosing treadmi
6. its mounting position Tighten the screw that secures the crank handle to the electronic console Note On units that have set screws securing the crank handle one of the set screws on the crank handle must face the flat area on the lift jack shaft Page 14 905E 9 1 9 10 Treadmills Diagram 4 2 Upper Lift Column Assembly Crank handle Lift Jack Potentiometer Pin Wheel Potentiometer Bracket Lift Column Page 15 905E 9 1 9 10 Treadmills Procedure 5 1 Troubleshooting the Keypad and Upper PCA 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 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 Set the circuit breaker in the on position Use a DVM set for DC volts and read between pin 3 of J1 and the each of the pins in Table 5 1 no keys pressed and Table 5 2 with the appropriate key pressed Table 5 1 Voltage Test
7. lift jack shaft opening in the potentiometer mounting bracket 28 Replace the lift potentiometer onto the potentiometer mounting bracket as described in Procedure 6 7 of this appendix 29 Using the cable tie connect the ribbon cable to the small hole in the potentiometer mounting bracket 30 Remove the tape from the upper part of the ribbon cable and connect the upper ribbon cable connector to the upper PCA 31 Replace the electronic console as described in Procedure 6 1 of this appendix Page 29 905E 9 1 9 10 Treadmills Diagram 6 6 Exploded view of Lift Assembly Set Screw Crank Handle I Potentiometer 5 Cable Tie Drive Wheel i l Screw Potentiometer Bracket lt D Starwasher Nut Pin Wheel ED Pressure Washer d j Spacer washer Lit Jack Collar Lift Column 32 Calibrate the lift assembly as described in Procedure 4 1 of this appendix 33 Check the operation of the treadmill as described in Section Three of this appendix Page 30 905E 9 1 9 10 Treadmills Procedure 6 4 Replacing the Ribbon Cable on 9 1 9 10 Treadmills Made After September 14 1994 Before you perform this procedure ensure that the ribbon cable is defective by connecting a spare ribbon cable to the upper PCA and lower PCA as described in Procedure 4 1 in the Residential Treadmill Service Manual Removing the Ribbon Cable 1 Place the mag
8. 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 18 905E 9 1 9 10 Treadmills 2 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 3 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 bre
9. the old potentiometer Caution Using the marking code you established above make sure each wire is connected to the correct terminal when you perform the following step 12 Place a 1 2 piece of heat shrinkable tubing onto each wire before wrapping the bare end of each wire around the terminals on the new potentiometer Page 40 905E 9 1 9 10 Treadmills Using the soldering iron melt a small piece of solder onto the junction formed by each wire and potentiometer terminal Slide a piece of shrinkable tubing over the soldered connection Using a new cable tie secure the three potentiometer wires to the potentiometer bracket Calibrate the lift assembly as described in Procedure 4 1 of this appendix Replace the electronic console and crank handle as described in Procedure 6 1 of this appendix Check the operation of the treadmill as described in Section Three of this appendix Page 41 905E 9 1 9 10 Treadmills Procedure 6 8 Replacing the Handrails Removing the Handrails 1 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet WARNING Before continuing with this procedure review the Warning and Caution statements listed in Section One of the Residential Treadmill Service Manual 2 Loosen the screws that secure the handrail to the upper handrail clamp 3 Remove the screws that secure the right lower handrail clamp to the treadmill frame and remove the right ha
10. to the lift column 21 Remove the ribbon cable using the appropriate procedure listed in Table 6 2 Replacing the Lift Jack and Lift Assembly Hardware 22 With the treadmill on its right side insert the lift jack into the lift column Note If necessary use the rubber mallet to force the lift jack cross tube into its mounting position 23 Return the treadmill to an upright position 24 Place the collar on the lift jack shaft so that the base of the collar is at the lower end of the shaft 25 Place the spacer washer and then a new pressure washer on the collar 26 Position an empty tube or pipe on the pressure washer and use the rubber mallet to force the pressure washer spacer washer and collar further down on the lift jack shaft 27 Place the drive wheel on the lift jack shaft 28 Using the phillips screwdriver replace the two screws that secure the potentiometer bracket to the lift column 29 Position the drive wheel so that the top of the drive wheel is flush with the lift jack shaft opening in the potentiometer bracket 30 Position the potentiometer at its mounting location 31 Thread the star washer and jam nut onto the potentiometer shaft Tighten the star washer and the jam nut with your fingers 32 Slide the pin wheel onto the potentiometer shaft 33 Calibrate the lift assembly as described in Procedure 4 1 of this appendix 34 Replace the electronic console and crank handle as described in Procedure 6
11. 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 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
12. 1 of this appendix Page 39 905E 9 1 9 10 Treadmills Procedure 6 7 Replacing the Lift Potentiometer Removing the Lift Potentiometer 1 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet 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 electronic console and crank handle as described in Procedure 6 1 of this appendix 3 Cut the cable tie that binds the potentiometer wires to the potentiometer bracket 4 Using the tape uniquely mark the three wires soldered to the potentiometer i Make a note of which wire goes to each of the terminals 5 Cut the three wires from the potentiometer terminals 6 Slide the pin wheel from the potentiometer shaft If necessary deflect the potentiometer bracket to allow the pin wheel to clear the end of the potentiometer shaft Set aside the pin wheel 7 Remove the jam nut and star washer securing the potentiometer to the potentiometer bracket see Diagram 6 8 Discard the potentiometer Replacing the Lift Potentiometer 8 Position the new potentiometer at its mounting location 9 Thread the star washer and jam nut onto the potentiometer shaft Tighten the washer and the nut with your fingers 10 Slide the pin wheel onto the potentiometer shaft 11 Strip 1 4 of insulation from each of the three wires cut from
13. 905E 9 1 9 10 Treadmills 905e 9 1 9 10 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 2003 Precor Incorporated Unauthorized Reproduction and Distribution Prohibited By Law Page 1 905E 9 1 9 10 Treadmills 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 appropriate treadmill owner s manual before you perform the maintenance procedures in this manual Section Two Software Features Precor s 905e 9 1 and 9 10 Treadmills are programmed with several
14. Electronic Console and Crank Handle Upper PCA or Keypad Wear an anti static device such as a wrist strap when you perform this procedure Anti static kits can be ordered from Precor Customer Service Precor part number 20024 101 Removing the Electronic Console 1 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet 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 crank handle and set it aside see Diagram 6 1 3 Remove the bolts and washers that secure the electronic console to the upper handrail clamp Diagram 6 1 Removing the Crank Handle 4 Disconnect the ribbon cable from the upper PCA see Diagram 6 2 5 If you are going to re install the electronic console without replacing either the upper PCA or display label and keypad Page 20 905E 9 1 9 10 Treadmills THEN OTHERWISE Set aside the electronic console Continue with the next step until maintenance operations are complete see Diagram 6 3 then skip to Step 24 6 If you are replacing the upper PCA THEN OTHERWISE Continue with the next step Skip to Step 16 Removing the Upper PCA The PROM U3 is mounted on the upper PCA If the PROM is malfunctioning you do not need to install the entire upper PCA Before you install a new PCA remove and replace th
15. PCA for eventual shipment to Precor Note When you package the lower PCA provide the information listed in Procedure 2 7 Replacing the Lower PCA 10 Position the lower PCA in the motor chassis groove 11 Thread the nuts onto the lower PCA mounting bolts Page 34 13 14 15 16 17 18 905E 9 1 9 10 Treadmills Inspect and adjust the target gap as described in Procedure 3 4 of the Residential Treadmill Service Manual Tighten the bolts and nuts that secure the lower PCA to the motor chassis Attach the ribbon cable to the lower PCA Connect the wires listed in Table 9 1 3 to the lower PCA Remove the ground lead of the wrist strap from the treadmill frame then remove the wrist strap from your arm Replace the hood as described in Procedure 5 1 of the Residential Treadmill Service Manual Check the operation of the treadmill as described in Section Three of this appendix Page 35 905E 9 1 9 10 Treadmills Procedure 6 6 Replacing the Lift Jack and Lift Column Many steps include letters in parentheses after component references These letters correlate to the call outs in Diagram 9 1 13 Diagram 9 1 13 is an exploded view of the 9 1 Treadmill lift assembly hardware Removing the Lift Assembly Hardware 1 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet WARNING Before continuing with this procedure review the Warning and Caution statements l
16. aker 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 2 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 ona 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 2 Ifan 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 19 905E 9 1 9 10 Treadmills Procedure 6 1 Replacing the
17. amp Hold the potentiometer cable away from the slot as you slide the ribbon cable into place Hold the electronic console over the lift column Connect the ribbon cable to the upper PCA Position the electronic console on the upper handrail clamp Replace the bolts and washers that secure the electronic console to the upper handrail clamp Position the crank handle at its mounting position and use the 1 8 allen wrench to tighten the set screws that secure the crank handle to the top of the lift jack Using the cable ties secure the ribbon cable to the cable tie mounts on the lift column Note Refer to Diagram 6 7 when you perform the next step Diagram 6 7 Attaching the Lift Column Trim to the Lift Column Upper handrail Clamp Electronic Console Lift Column Trim Ribbon Cable Litt Column Page 32 905E 9 1 9 10 Treadmills 18 Attach the lift column trim by following the steps listed below a Position the trim so that the notched end points up b Insert the base of the trim through the opening in the hood c Raise the trim until the notched end of the trim touches the underside of the upper handrail clamp Be careful to maintain the vertical alignment of the trim with the lift column CAUTION Make sure that the ribbon cable is situated in the trim s center slot before you perform the following step d While maintaining alignment attach the trim by pressing firmly against the lift col umn unti
18. appendix Calibrating the Lift Assembly When the treadmill is in calibration mode and the SPEED A key is selected the treadmill speed will increase twice as fast as it does when the treadmill is in a normal operating mode Procedure 1 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker Note Diagram 9 1 1 displays the 905e Treadmill electronic console The 9 1 Treadmill electronic console is shown in Diagram 9 1 2 The 9 10 Treadmill electronic console is shown in Diagram 9 1 3 2 With the Enter Your Weight banner scrolling press and hold the SPEED A key SPEED Y key STOP and SCAN ENTER keys simultaneously 3 The electronic console displays the version number of the PROM mounted on the upper PCA Record the PROM version number 4 Following the version number a horizontal line sweeps from top to bottom and then a vertical line sweeps from right to left The lines check the LED s mounted on the upper PCA 5 After the horizontal and vertical LED test lines the electronic console displays the potentiometer increment number Note If the PROM version number displayed earlier in this procedure is equal to or greater than 4 0 the potentiometer increment number should be 18 0 incline if the PROM version number is less than 4 0 the potentiometer number should be between 10 and 12 9 0 incline If the electronic console does not display these increment numbers the lif
19. e PROM U3 as described in Procedure 6 2 of this appendix 7 Remove the screws that secure the electronic chassis to the electronics housing assembly Note The electronics housing assembly is the frame that holds together the electronic console components The electronics housing assembly consists of the electronics housing magnet keeper ACTIVATE label OFF label control panel spacer and crank housing label These components are shipped from Precor as a single unit Diagram 6 2 Disconnecting the Ribbon Cable 8 Attach the wrist strap to your arm then connect the ground lead of the wrist strap to the treadmill frame 9 Carefully disconnect the keypad from the upper PCA 10 Remove the screws that secure the upper PCA to the electronics housing assembly Page 21 905E 9 1 9 10 Treadmills Note Notice the position of the ribbon cable connector on the upper PCA When you replace the upper PCA mount it in the same manner 11 Note Set aside the defective upper PCA for eventual shipment to Precor Customer Service When you package the upper PCA document the problem as described in Procedure 2 7 of this appendix Diagram 6 3 Removing the Electronic Console Replacing the Upper PCA 12 13 14 15 16 Position the new upper PCA at its mounting location Install the screws that secure the PCA to the electronics housing assembly Reconnect the keypad to the upper PCA Remove the ground l
20. ead of the wrist strap from the treadmill frame then remove the wrist strap from your arm Replace the screws that secure the upper electronic chassis to the electronics housing assembly If you are replacing the display label and keypad Page 22 905E 9 1 9 10 Treadmills THEN OTHERWISE Continue with the next step Carefully connect the keypad f to the upper PCA then skip to Step 24 Removing the Display Label and Keypad The keypad and display label are attached to the electronics housing assembly with adhesive If the display label is removed a new display label and keypad must be pressed to the electronics housing assembly If the electronics housing assembly must be replaced press a new keypad and display label onto the new electronics housing assembly 17 Remove the window spacer display label and keypad from the electronics housing assembly 18 Remove as much of the old adhesive as possible Ensure that any remaining adhesive is firmly bonded to the mounting location 19 Clean the electronics housing assembly with a mild detergent Remove the detergent with a damp cloth Replacing the Display Label and Keypad 20 Remove the adhesive cover from the back of the new keypad then carefully position the keypad on the electronics housing assembly Press the keypad firmly 21 Remove the adhesive cover from the back of the new display label Carefully position the display label on the electronics housing as
21. he screws that secure the handrail to the upper handrail clamp 15 Plug the power cord into the wall outlet Use the item numbers listed in Table 9 1 5 and the exploded view diagram shown in Diagram 9 1 16 to locate and identify 905e Treadmill components Page 43 905E 9 1 9 10 Treadmills Diagram 7 1 Wiring Diagram 905e 9 1 9 10 Lower PCA F1 System Fuse Yellow 1 4 A mp Power Cord Brown Black AGL Load Ling Circuit Breaker AC N Blue White Black Inductor Red Capacitor Red Drive Motor Ribbon Potentiometer Cable Page 44 905E 9 1 9 10 Treadmills VOd7 uo pajyunow eKeojoudg wip H8 dwy oz ua dwe yj Y 91489 Ionuoo YOS uoqqn punog 1034p ss019 0197 punog eKeojoud punois OA S SGA S SQA S din Jayesig 1InoJ1io uonduoseg uld e v7 OD 10 O DAS Jejyouonuejod 103007 Aejdsiq OUD yms un peedg euyjou peeds Ajejes wold oL OL Wo4 vodn suonos uuoo ejqe uoqqn Sinupeei O16 L6 3S06 2MOO Rd a Pal Diagram 7 2 Block Diagram 905e 9 1 9 10 Treadmills Page 45
22. ill from the wall outlet Page 12 905E 9 1 9 10 Treadmills Procedure 4 1 Calibrating the Lift Assembly Procedure 1 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 Turn the crank handle in the negative direction until the crank handle will no longer move without using excessive force Note Do not overtighten the crank handle 3 Press the SCAN key then view the electronic console as the treadmill scans time speed distance and percent 4 Ifthe electronic console displays zero percent THEN OTHERWISE Continue with the next step Skip to Step 8 5 Turn the crank handle in the positive direction until the crank handle will no longer move without using excessive force 6 Press the SCAN key then view the electronic console as the treadmill scans time speed distance and percent 7 Ifthe electronic console displays ten percent THEN OTHERWISE The lift mechanism is calibrated Continue with the next step correctly place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet Note When you perform the next step the electronic console will display the PROM version number check the LED s that make up the electronic console display and display the potentiometer increment number 8 9 With the Enter Your Weight banner scrolling and the incline at minimum zero percent press and hold the
23. ion Three of this appendix Page 26 905E 9 1 9 10 Treadmills Procedure 6 3 Replacing the Ribbon Cable on 905e 9 1 Treadmills Made Before September 14 1994 Removing and replacing the ribbon cable is a procedure that takes a significant amount of time to accomplish Before performing this procedure ensure that the ribbon cable is defective by connecting a spare ribbon cable to the upper PCA and lower PCA as described in Procedure 4 1 of the Residential Treadmill Service Manual Removing the Ribbon Cable 1 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet 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 electronic console as described in Procedure 6 1 of this appendix 3 Remove the lift potentiometer from the potentiometer mounting bracket as described in Procedure 6 7 of this appendix 4 Position the crank handle on the lift jack shaft and tighten the screw 5 Rotate the crank handle in the negative direction until the pressure washer breaks Note You will hear a loud popping sound when the pressure washer breaks 6 Loosen the crank handle screw and remove the crank handle from the electronic console 7 Remove the broken pressure washer and the spacer washer from the lift jack shaft 8 Remove the screws that secure the potentiometer mounting bracket
24. isted in Section One of the Residential Treadmill Service Manual 2 Remove the electronic console and crank handle as described in Procedure 6 1 of this appendix 3 Slide the pin wheel from the potentiometer shaft If necessary deflect the potentiometer bracket to allow the pin wheel to clear the end of the potentiometer shaft Set aside the pin wheel 4 Remove the jam nut and star washer securing the potentiometer to the potentiometer bracket 5 Position the crank handle on the lift jack shaft and use the 1 8 allen wrench to tighten one set screw 6 Rotate the crank handle in the negative direction until the pressure washer breaks Note You will hear a loud popping sound when the pressure washer breaks 7 Loosen the crank handle set screw and remove the crank handle from the lift jack 8 Remove the broken pressure washer and spacer washer from the lift jack shaft 9 Remove the screws that secure the potentiometer bracket to the lift column 10 Slide the drive wheel from the lift jack shaft Set the drive wheel aside until maintenance operations are complete 11 Place the treadmill on its right side Page 36 905E 9 1 9 10 Treadmills Note Place a drop cloth under the treadmill to protect the flooring and to ensure that the treadmill handrail is not scratched or damaged Diagram 6 8 Exploded View of the Lift Assembly Set Screw Crank Handle Potentiometer 2 Cable Tie Drive Wheel
25. k treadmill operation at the end of a maintenance procedure and when it is necessary to ensure that the treadmill is operating properly Procedure 1 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 Adjust the speed of the running belt to 2 3 m p h 3 Operate the treadmill for at least 5 minutes 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 Measure and log the AC input current under loaded and unloaded conditions Press the SCAN key while observing the LED s on the electronic console Make sure that each LED lights as the information corresponding to that LED is displayed on the electronic console 4 Press the STOP key When the treadmill comes to a stop press the SCAN key and view the electronic console as the treadmill scans time speed distance and percent 5 Turn the crank handle in the positive direction while viewing the electronic console Confirm that the running bed inclines and the incline display increments to ten percent as the crank handle is turned 6 Turnthe crank handle in the negative direction 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 crank handle is turned 7 Place the magnetic safety key in the OFF position then unplug the treadm
26. l the hook and loop pads fasten securely to each other 19 Replace the hood as described in Procedure 5 1 of the Residential Treadmill Service Manual 20 Check the operation of the treadmill as described in Section Three of the Residential Treadmill Service Manual Page 33 905E 9 1 9 10 Treadmills Procedure 6 5 Replacing the Lower PCA Removing the Lower PCA 1 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 Incline the treadmill to its maximum elevation 3 Stop the treadmill by placing the magnetic safety key in the OFF position then unplug the power cord from the wall outlet WARNING Before continuing with this procedure review the Warning and Caution statements listed in Section One of the Residential Treadmill Service Manual 4 Liftthe hood as described in Procedure 5 1 of the Residential Treadmill Service Manual 5 Attach the anti static wrist strap to your arm then connect the ground lead of the wrist strap to the treadmill frame 6 Disconnect the ribbon cable from the lower PCA 7 Disconnect the wires listed in Table 6 1 from the lower PCA connectors Table 6 1 Wires Connected to the Lower PCA Wire Color Lower PCA Connector Red M Black M Brown AC L Blue White AC N 8 Remove the bolts and nuts that secure the lower PCA to the motor mounting chassis 9 Remove the lower PCA from the motor chassis groove Set aside the lower
27. ll operation and trouble symptoms Section Nine Service Bulletins and Engineering Change Notices If you receive Service Bulletins or Engineering Change Notices about 905e 9 1 and 9 10 Treadmills place them in this section 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 Technical Specifications Length Width Height Running surface Motor Speed Incline Power Weight Shipping weight 905E 9 1 9 10 Treadmills 67 5 inches 26 75 inches 43 5 inches 51 inches by 17 inches 1 5 hp continuous duty DC 905e Treadmills Software Version 1 4 or Less 0 3 to 6 mph in 2 mph increments 905e Treadmills Software Version Greater Than 1 4 0 5 to 8 mph in 2 mph increments 9 1 Treadmills 0 5 to 8 mph in 10 mph increments 9 10 Treadmills 0 5 to 9 mph in 10 mph increments 0 to 10 50 60Hz 120v AC 195 Ibs 280 Ibs Page 3 905E 9 1 9 10 Treadmills Procedure 2 1 905e 9 1 and 9 10 Calibration Mode Placing the 905e 9 1 and 9 10 Treadmills in Calibration Mode causes the software to perform the following operations 1 Display the PROM version number 2 Check the LED s mounted on the upper PCA and Display the potentiometer increment number Place the treadmill in Calibration Mode before calibrating the lift assembly The steps in this procedure are included in Procedure 4 1 of this
28. ndrail from its mounting position 4 Repeat Step 3 for the left handrail 5 If you are removing the upper handrail clamp as well as the handrails THEN OTHERWISE Continue with next step Skip to Step 10 Removing the Upper Handrail Assembly 6 Remove the electronic console as described in Procedure 6 1 of this appendix 7 Remove the screws and washers that secure the upper handrail clamp to the lift column Replacing the Upper Handrail Assembly 8 Position the upper handrail assembly at its mounting location Secure the screws and washers that mount the upper handrail clamp to the lift column 9 Replace the electronic console as described in Procedure 6 1 of this appendix Note Do not tighten the screws that secure the electronic enclosure to the upper handrail assembly Replacing the Handrails 10 Place the end of the right handrail tube against the plastic cradle Note Sit the end of the handrail tube on the projecting ledge of the cradle Page 42 905E 9 1 9 10 Treadmills 11 Insert the right handrail into the upper handrail clamp until the foam just touches the clamp Note When you position the lower handrail clamp make sure that the clamp is lined up with the mounting holes on the treadmill frame 12 Position the right lower handrail clamp at its mounting location Replace the screws that secure the clamp to the treadmill frame 13 Repeat Steps 11 through 13 for the left handrail clamp 14 Tighten t
29. netic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 Incline the treadmill to its maximum elevation 3 Stop the treadmill by placing the magnetic safety key in the OFF position then unplug the power cord from the wall outlet WARNING Before continuing with this procedure review the Warning and Caution statements listed in Section One of the Residential Treadmill Service Manual 4 Liftthe hood as described in Procedure 5 1 of the Residential Treadmill Service Manual 5 Disconnect the ribbon cable from the lower PCA 6 Remove the set screws that secure the crank handle to the top of the lift jack Remove the crank handle and set it aside 7 Remove the bolts and washers that secure the electronic console to the upper handrail clamp 8 Disconnect the ribbon cable from the upper PCA Set aside the electronic console until you are ready to replace the ribbon cable 9 Grasp the top and lower ends of the lift column trim Firmly pull the trim away from the lift column 10 Outthe cable ties that secure the ribbon cable to the cable tie mounts on the lift column Replacing the Ribbon Cable 11 Remove the old cable ties then push new ties through the cable tie mounts on the lift column 12 Connect the ribbon cable the lower PCA Page 31 13 14 15 16 17 905E 9 1 9 10 Treadmills Slide the connector and ribbon cable through the slot on the upper handrail cl
30. nual 2 Loosen the set screws that secure the crank handle to the top of the lift jack Remove the crank handle and set it aside 3 Remove the bolts and washers that secure the electronic console to the upper handrail clamp 4 Remove the screws that secure the upper electronic chassis to the electronics housing assembly 5 Attach the wrist strap to your arm then connect the ground lead of the wrist strap to the treadmill frame 6 Carefully disconnect the keypad from the upper PCA 7 Remove the screws that secure the upper PCA to the electronics housing assembly Keep the ribbon cable connected to the upper PCA Removing and Replacing the PROM U3 Keep the new PROM in its protective packaging until you are ready to insert it into the chip socket Caution Notice the orientation notch on the PROM U3 The new PROM must be positioned with the same notch orientation Replacing the PROM backwards will destroy the PROM 8 Using the chip puller remove the PROM U3 from the upper PCA see Diagram 6 4 9 Carefully insert the new PROM with the correct software version number in the chip socket Take care not to bend the legs of the PROM Page 24 905E 9 1 9 10 Treadmills Note The software version number is labeled on the PROM U3 Position the upper PCA at its mounting location then replace the screws that secure the upper PCA to the electronics housing assembly Carefully connect the keypad to the upper PCA
31. re the display enclosure to the display plate Check the operation of the treadmill as described in Section Three of this appendix Page 17 905E 9 1 9 10 Treadmills Procedure 5 2 Troubleshooting the 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
32. rmation in the units of the measurement standard selected Changing to the alternate measurement standard after your workout has started will cause invalid data to be displayed For this reason change the measurement standard only after turning ON the treadmill Procedure The measurement standard must be changed within five seconds of turning on the treadmill 1 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 With the Enter Your Weight banner scrolling press and hold the SPEED A and SCAN ENTER keys simultaneously until the Press A for MPH amp miles or V for KPH amp kilometers message scrolls across the screen 3 Use the SPEED A or SPEED V key to select the measurement standard Note When the treadmill is turned off or unplugged it will remember the last measurement standard selected Page 7 905E 9 1 9 10 Treadmills Procedure 2 4 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 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 With the Enter Your Weight banner scrolling press and hold the SPEED A key SPEED Y key STOP and SCAN ENTER keys simultaneously 3 Note the software version number displayed on the electronic console Note If
33. s Function Keys Not Pressed Place the positive lead of the voltmeter on Pin 1 of J1 Pin 4 of J1 Pin 5 of J1 Pin 2 of J1 The voltmeter should read 5 Vdc 500 mVdc 5 Vdc 500 mVdc 5 Vdc 500 mVdc 5 Vdc 500 mVdc Table 5 2 Voltage Tests Function Keys Pressed Place the positive lead Press key of the voltmeter on Pin 1 of J1 STOP Pin 4 of J1 SPEED Y Pin 5 of J1 SPEEDA Pin 2 of J1 SCANA The voltmeter should read 0 Vdc and 500 mVdc 0 Vdc and 500 mVdc 0 Vdc and 500 mVdc 0 Vdc and 500 mVdc Page 16 905E 9 1 9 10 Treadmills 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 measurements 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 strap from your arm Position the display enclosure on the display plate Install the screws that secu
34. sembly then press the label firmly Note The window spacer separates the upper PCA from the adhesive side of the display label 22 Turn over the electronics housing assembly then position the window spacer on the open area of the electronics housing assembly 23 Carefully connect the keypad to the upper PCA Replacing the Electronic Console 24 Connect the ribbon cable to the upper PCA 25 Position the electronic console at its mounting position 26 Replace the bolts and washers that secure the electronic console to the upper handrail clamp 27 Position the crank handle at its mounting position Use the 1 8 allen wrench to tighten the set screws that secure the crank handle to the top of the lift jack 28 Check the operation of the treadmill as described in Section Three of this appendix Page 23 905E 9 1 9 10 Treadmills Procedure 6 2 Replacing the PROM This procedure gives you the instructions for removing and replacing the PROM U3 mounted on the upper PCA Wear an anti static device such as a wrist strap when you perform this procedure Anti static kits can be ordered from Precor Customer Service Precor part number 20024 101 Dismounting the Upper PCA 1 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet WARNING Before continuing with this procedure review the Warning and Caution statements listed in Section One of the Residential Treadmill Service Ma
35. splayed on the electronic console enter power bit mode by pressing the SPEED W key Note When you remove your finger from the SPEED Y key the number of power bits will be displayed Power bits are directly related to the drive motor input signal The power bit number represents a combination of requested speed and actual load Page 10 905E 9 1 9 10 Treadmills Procedure 2 7 Documenting Software Problems When a problem is found with either the PROM 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 include the information with the malfunctioning PROM or PCA when you ship it to Precor Customer Service When a problem occurs record the following information Model and serial number Software version number Note Determine the version number of the PROM mounted on the upper PCA as described in Procedure 2 4 of this appendix User and program number running when the problem occurred Adescription of What happened or failed to happen The action taken by the user just before the problem occurred 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 11 905E 9 1 9 10 Treadmills Section Three Checking Treadmill Operation This section provides you with a quick method of checking treadmill operation Chec
36. t assembly is not calibrated correctly Go to Procedure 4 1 of this appendix 6 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet Page 4 905E 9 1 9 10 Treadmills 9 1 Electronic Console CALTON 9 10 Electronic Console Page 5 905E 9 1 9 10 Treadmills Procedure 2 2 Displaying the Odometer This procedure allows you to display the number of miles logged on the treadmill Total miles logged on the treadmill is different from workout time Workout time is displayed as described in the owners manuals provided with the 905e 9 1 and 9 10 Treadmills Procedure 1 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 With the Enter Your Weight banner scrolling press the STOP key the SPEED W key and then the SPEED A key sequentially Note After you perform Step 2 the electronic console displays the number of miles logged on the treadmill 3 Place the magnetic safety key in the OFF position then unplug the treadmill from the wall outlet Page 6 905E 9 1 9 10 Treadmills Procedure 2 3 Selecting United States Standard or Metric Units Selecting United States standard units causes information to be displayed in feet and pounds Information is displayed in meters and kilograms if metric units are selected After you have selected a measurement standard the software compiles and records workout info
37. to the lift column 9 Slide the drive wheel from the lift jack shaft Set the drive wheel aside until maintenance operations are complete 10 Setthe treadmill on its right side 11 Disconnect the ribbon cable from the lower PCA 12 Strike the lift jack shaft with the rubber mallet until the lift jack shaft is loosened from its mounting position Note Even with the lift jack shaft loosened the collar may remain lodged in the top of the lift column If Page 27 905E 9 1 9 10 Treadmills this occurs use the flat head screwdriver and rubber mallet to force the collar from its mounting position 13 Pull the lift jack from the lift column and set it aside Note If necessary hammer the lift jack shaft to loosen the lift jack from its mounting position 14 Remove the old ribbon cable from the ribbon cable channel in the lift column Pull the ribbon cable out of the lift column Replacing the Ribbon Cable 15 With the treadmill still on its right side feed the new ribbon cable into the top of the lift column until only 6 8 inches of cable are hanging out of the top of the lift column Fold the top of the ribbon cable over the top edge of the lift column and use the tape to secure the cable to the side of the lift column that faces the floor 16 Place the ribbon cable into the cable channel at the top of the lift column see Diagram 6 5 17 Pull the lower end of the ribbon cable until the cable is taut and place the ribbon
38. you cannot determine the software version number in this manner look at the PROM U3 mounted on the upper PCA A label on U3 indicates the software version number and the treadmill model number of the PROM Page 8 905E 9 1 9 10 Treadmills Procedure 2 5 Checking the LED s Mounted on the Upper PCA Procedure 1 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 With the Enter Your Weight banner scrolling press and hold the SPEED A key SPEED Y key STOP and SCAN ENTER keys simultaneously 3 After the software version number is displayed on the electronic console watch the illuminated lines sweep from top to bottom and then right to left Note The lines check the LED s mounted on the upper PCA If the lines are broken when they sweep across the electronic console one or more of the LED chips DS1 DS2 DS3 DS4 or DS5 is defective Replace the defective LED chip as described in Procedure 6 2 of this appendix Page 9 905E 9 1 9 10 Treadmills Procedure 2 6 Placing the 905e 9 1 and 9 10 Treadmills in Power Bit Mode Procedure 1 Place the magnetic safety key in the ACTIVATE position then turn on the treadmill with the circuit breaker 2 With the Enter Your Weight banner scrolling press and hold the SPEED A key SPEED Y key STOP and SCAN ENTER keys simultaneously 3 Watch the electronic console When the potentiometer increment number is di
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