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9.23, 9.27 Treadmill

20081-118

Page 1

9.23, 9.27 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.

© 2007 Precor Incorporated
Unauthorized Reproduction and Distribution Prohibited By Law

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Содержание 9.23

Страница 1: ...intain this product This document contains general product information software diagnostic procedures when available preventative maintenance procedures inspection and adjustment procedures troublesho...

Страница 2: ...cedures 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 variou...

Страница 3: ...s 194 3 cm Width 30 5 inches 77 5 cm Height 55 inches 140 cm Running surface 20 inches by 59 inches 51 cm by 149 9 cm Motor 2 75 hp continuous duty DC Speed 0 5 to 12 mph or 0 8 to 20 kph 10 mph is eq...

Страница 4: ...Vdc power supply and indicates the input to the power supply is receiving voltage UP The UP LED should illuminate when the incline is operating in the upward direction The UP LED indicates that operat...

Страница 5: ...seconds of replacing the safety key press the STOP INCLINE SPEED keys sequentially 2 The odometer in miles or kilometers will be displayed in the DISTANCE window of the display See Diagram 2 1 below...

Страница 6: ...on 4 Inc Limit will be displayed at the bottom of the display and the incline A D number will be displayed in the HEART RATE window As the incline is raised or lowered the A D number should track the...

Страница 7: ...test to ensure that every display segment is functioning This test will run continuously until you press the STOP key to halt the display test Console Sel 11 The display will indicate whether the cons...

Страница 8: ...the console Allow the internal power supply to discharge approximately 10 seconds and then replace the safety key on the console Within 2 seconds of replacing the safety key press the STOP INCLINE SP...

Страница 9: ...g information Model and serial number Provide the model number as accessed in Procedure 2 2 Program number running when the problem occurred A description of a What happened or failed to happen b The...

Страница 10: ...ge PRESS QUICKSTART OR PROGRAM 3 Place the treadmill in Manual Mode Adjust the speed of the running belt to 2 3 m p h Operate the treadmill for at least 5 minutes a Concentrate on the feel of the runn...

Страница 11: ...ning belt starts in motion the incline will always return to the 0 incline position unless it is already in the 0 incline position 4 Press the QUICKSTART key when the running belt starts the incline w...

Страница 12: ...ition 8 Swing the lift platform into its mounting position with the lift tube and fasten it with the bolt removed in step 2 9 Set the treadmill in its normal upright position Set the on off switch in...

Страница 13: ...rive belt tension is less than 70 or greater than 90 pounds slightly loosen the four drive motor mounting nuts The drive motor mounts on slotted holes allowing the drive motor to be move forward or re...

Страница 14: ...ill Page 14 Diagram 4 3 Drive Motor Mounting 6 Plug the AC power cord into the AC outlet and set the treadmill circuit breaker in the on position 7 Check treadmill operation per Section 3 Belt Tension...

Страница 15: ...pproximately 36 inches or 1 meter in length is required Fold the towel in half lengthwise lift the running belt up and insert the towel beneath the belt so that an end of towel extends on to each deck...

Страница 16: ...ds on the towel and push it up and down the length of the running deck several times to clean the deck 6 Remove the towel It is recommended that this procedure be performed frequently to extend the li...

Страница 17: ...e cable and data cable from the rear of the console Remove the six screws from the rear of the console remove the display face from the console rear cover See Diagram 5 1 The keypad connector JK6 on t...

Страница 18: ...the value of the internal potentiometer The lift motor is initially set at a known starting position calibration See Procedure 4 1 subsequent motor movement is tracked via the potentiometer resistanc...

Страница 19: ...is significantly high replace the incline motor per Procedure 6 1 8 Connect an AC voltmeter between terminal 2 white wire and terminal 3 black wire of the JK4 connector on the lower PCA Press the INCL...

Страница 20: ...onnections on the incline potentiometer to ensure they are securely connected to the incline potentiometer Refer to Diagram 5 3 Diagram 5 3 Incline Potentiometer 16 Repeat the three ohmmeter measureme...

Страница 21: ...4 Speed Sensor 2 Remove the treadmill s hood 3 Remove the JK2 connector from the lower PCA Refer to Diagram 5 2 4 With an ohmmeter measure between the two pins on the JK2 connector and slowly push th...

Страница 22: ...itch per Procedure 6 7 5 Ensure that the safety key magnet is operating the reed switch in the console If the reed switch is not activated the display will not illuminate See Procedure 5 5 6 Remove th...

Страница 23: ...functioning correctly continue with step 12 12 Set the on off switch in the off position and remove the AC power from the AC outlet Referring to Diagram 5 2 remove the fuse from the lower PCA With an...

Страница 24: ...am 5 2 15 Set the on off switch in the on position Repeat the measurement in step 14 If the reading is still 0 Vdc or significantly low replace the lower PCA If the reading is now correct the problem...

Страница 25: ...with the safety key removed from the console The readings should be approximately 0 with the safety key installed and open with the safety key removed 4 If the readings in step 3 are incorrect replac...

Страница 26: ...anual program at 1 mph 5 With a DC voltmeter measure between the T3 M terminal and the T4 M terminal on the lower PCA The reading should be approximately 12 Vdc If the voltage is absent or significant...

Страница 27: ...9 23 9 27 Treadmill 20081 118 Page 27 lower PCA per Procedure 6 3...

Страница 28: ...r PCA per Procedure 6 10 13 If the display does not indicate that the speed should be increasing when the SPEED key is pressed bypass the data cable with a known good data cable It is not necessary to...

Страница 29: ...ircuit breaker with a capacity of less than 15 amps the A C circuit must be corrected to be a 15 amp dedicated circuit before any reliable troubleshooting can be performed on the treadmill More import...

Страница 30: ...ircuit breaker If the circuit breaker is greater than 15 amps the circuit breaker should be replaced with a 15 amp circuit breaker If the circuit breaker is less than 15 amps the circuit breaker must...

Страница 31: ...ill provide you with a benchmark reading to account for your individual weight Because the A C input current reading will pulse between a high value during foot plant and a low reading between foot pl...

Страница 32: ...4 If the peak A C current readings are greater than on a new running belt and deck combination but not approaching 20 amperes the reading will give you an indication of the running belt and deck comb...

Страница 33: ...its upper mounting bracket 7 Remove the incline motor from the treadmill 8 Set the replacement incline motor at its mounting position and fasten it to its upper mounting bracket with the hardware rem...

Страница 34: ...ot allow the incline motor s lift tube to rotate The incline motor may require calibration if the incline motor s lift tube has rotated 4 Remove the two bolts that fasten the lift platform to the fram...

Страница 35: ...removed in step 5 9 Set the replacement lift platform in its mounting position and fasten it with the hardware removed in step 4 10 Fasten the incline motor s lift tube to the lift platform with the h...

Страница 36: ...sten the lower PCA to the frame and remove the lower PCA from the treadmill 6 Set the replacement lower PCA at its mounting position and fasten it with the hardware removed in step 5 7 Connect the JK1...

Страница 37: ...rews and remove the speed sensor from the treadmill Diagram 6 3 Speed Sensor 6 Set the replacement speed sensor at its mounting position and fasten it with the hardware removed in step 5 7 Dress the s...

Страница 38: ...d black drive motor wires from the lower PCA and green yellow wire from its frame ground Diagram 6 4 Drive Motor Mounting 5 Loosen the four drive motor mounting nuts See Diagram 6 4 Loosen the drive b...

Страница 39: ...to the T4 M terminal of the lower PCA the red wire removed in step 4 to the T3 M terminal of the lower PCA and the green yellow lead to its frame ground termination 10 Dress the drive motor wires and...

Страница 40: ...ircuit breaker and then sidewise to remove the circuit breaker from the mounting plate refer to Diagram 6 5 Diagram 6 5 Circuit Breaker 5 Press the replacement circuit breaker into its mounting hole u...

Страница 41: ...res from the on off switch 4 Depress the four clips on the on off switch two on each side and push the on off switch out the bottom of the treadmill Refer to Diagram 6 6 Diagram 6 6 On Off Switch 5 Or...

Страница 42: ...wire from the AC power cord to the lower right hand terminal of the on off switch the red wire from the circuit breaker to the upper left hand terminal of the on off switch and the red black wire fro...

Страница 43: ...spring to disengage from the brush holder and slide out of the brush holder 5 Disconnect the brush connector and remove the brush from the brush holder 6 Slide the replacement brush into the brush ho...

Страница 44: ...er 6 Disconnect the safety switch connector JK7 from the upper PCA Remove the two screws that fasten the safety switch to the display face Remove the safety switch cable from the safety switch 7 Set t...

Страница 45: ...backplate to the rear of the console and remove the console from the backplate Refer to Diagram 6 9 Diagram 6 9 Console Rear View 4 Disconnect the data cable and heart rate cable 9 27 only from the co...

Страница 46: ...safety switch cable to the JK7 connector and the user 1 2 keypad cable to the JK10 connector of the upper PCA 11 Set the console rear cover in its mounting position on the display face and fasten it...

Страница 47: ...pad cable from the JK6 the safety key cable from the JK7 connector and the user 1 2 keypad cable from the JK10 connector on the upper PCA 7 Remove the four screws that fasten the upper PCA to the disp...

Страница 48: ...ing out of the upper and lower ends of the targa upright Remove the data cable from the string and discard the data cable 7 Tie the lower end of the string onto the replacement data cable Carefully dr...

Страница 49: ...unning belt may be over tensioned Over tensioning the belt will lead to premature running belt wear premature driver roller bearing failure and premature take up roller bearing failure 1 Place two run...

Страница 50: ...ced on it in step 6 aligns with the front edge of the drive roller shaft Steps 8 and 9 should place the drive roller into its original position and should now be square to the treadmill frame 11 Slowl...

Страница 51: ...hand mounting bolt counter clockwise until the drifting stops If the belt drifts to the left slowly turn the right hand mounting bolt counter clockwise until the drifting stops Only a very small adjus...

Страница 52: ...emature running belt wear premature driver roller bearing failure and premature take up roller bearing failure 1 Place two running belt gauges on each side of the running belt being sure that the gaug...

Страница 53: ...til the drifting stops If the belt drifts to the left slowly turn the left hand mounting bolt clockwise until the drifting stops Only a very small adjustment should be required 1 8 to 1 4 turn 12 Incr...

Страница 54: ...sided decks must be replaced 1 Remove the end caps from the rear of treadmill to expose the take up roller mounting bolts Remove the treadmill s motor cover 2 If applicable remove the finger guard fro...

Страница 55: ...ert is flush with the deck surface Repeat this procedure with the remaining five inserts 9 Using a clean dry cloth wipe the top surface of the deck clean of any dirt dust or debris Set the replacement...

Страница 56: ...justing the take up roller mounting bolts as described in step 21 21 If the belt drifts to the right slowly turn the right hand mounting bolt clockwise until the drifting stops If the belt drifts to t...

Страница 57: ...er PCA JK7 JK5 JK6 JK10 JK8 Safety Switch HHHR Grips Keypad User 1 2 Keypad Lower PCA JK1 JK2 JK4 T1 AC1 T2 AC2 T3 M T4 M Up Down Com W W BK W BK BK BK W R BK R W BK R W BK G Y G Y G Y Circuit Breaker...

Страница 58: ...9 23 9 27 Treadmill Page 58 Diagram 7 2 Block Diagram...

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