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Precor c944 Скачать руководство пользователя страница 37

C944 Treadmill

Page 37

Replacing the Lift Platform

6.

With the treadmill still on its left side, position the lift platform at its mounting position.

7.

Replace the two bolts and nuts that secure the lift platform to the treadmill frame.

Note:

The original nuts used to mount the lift platform are Kep nuts, which do not require a separate
washer. If you do not use Kep nuts to mount the lift platform, use washers when you mount the
lift platform to the treadmill frame.

8.

Replace the bolt that connects the actuator block to the lift platform.

9.

Replace the lower bolt and nut that secure the lift motor to the treadmill frame.

10. Check the operation of the treadmill as described in Section Three of this appendix.

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Содержание c944

Страница 1: ...s product This document contains general product information software diagnostic procedures when available preventative maintenance procedures inspection and adjustment procedures troubleshooting proc...

Страница 2: ...rocedures 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 vari...

Страница 3: ...inches 72 cm Height 44 inches 112 cm Running surface 53 inches by 18 inches 135 cm by 46 cm Motor 2 hp continuous duty DC 120 Vac and 240 Vac models Speed 0 5 to 12 mph 0 8 to 19 kph 10 mph is equiva...

Страница 4: ...the LED test progresses This test is programmed to display the following LED illumination sequence a Every LED on the left display window illuminates simultaneously b The lower row of the display wind...

Страница 5: ...roll by Note The following diagnostic test automatically searches for the upper and lower limit switches and the zero sense switch It also detects a non functional non moving lift 6 Watch the electron...

Страница 6: ...ss ENTER to exit this mode Note The following mode allows manual control of the motor speed while displaying the power bits It is useful in determining if the system is having difficulties running the...

Страница 7: ...the center dot SPEED Expands the third dot from the right SPEED Expands the second dot from the right QUICK START CHANGE Expands the far right dot 13 If the left display window column illuminates app...

Страница 8: ...he mileage Procedure 1 Plug the power cord into the wall outlet then turn on the treadmill with the circuit breaker 2 With the PRECOR C944 banner scrolling press the INCLINE and SPEED keys simultaneou...

Страница 9: ...is club selection is used to limit the maximum workout time the treadmill may be used during a workout The time may range from a minimum of 10 minutes to an absolute maxi mum of 240 minutes The defaul...

Страница 10: ...cted units to change if the INCLINE UP key is released before the CHANGE key Selecting Maximum Workout Speed For PWM treadmills the maximum workout speed limit is between either 1 and 12 MPH or 1 and...

Страница 11: ...problem occurs record the following information Model and serial number Software version number Note Determine the version number of the PROM as described in Procedure 2 1 or by looking at the label o...

Страница 12: ...ut current under loaded and unloaded con ditions On PWM units log the power bits under loaded and unloaded conditions c Observe the LEDs on the electronic console Make sure that each LED lights as the...

Страница 13: ...stance between the floor and the top of the front and back ends of the side rail see Diagram 4 1 Note The distance between the floor and the top of the front end of the side rail should be 9 inches 3...

Страница 14: ...E key until the the front and back treadmill front and back treadmill measurements measurements are equal then are equal then press RESET press RESET 8 Turn off the treadmill with the circuit breaker...

Страница 15: ...en power is applied to the treadmill the wires connected to the upper and lower limit switches carry 110 volts or 220 volts if you are servicing a 220 volt treadmill Turn off the treadmill and unplug...

Страница 16: ...be actuated if the center of the wheel is slightly above or slightly below the widest point of the switch actuator However for best results adjust the position of the zero sense switch as described i...

Страница 17: ...n continue with then continue with the next step the next step 14 Tighten the socket head bolts and washers that secure the switch bracket to the lift platform see Diagram 4 2 15 Replace the hood 16 C...

Страница 18: ...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...

Страница 19: ...adings match those listed in Tables 5 1 and 5 2 and one or more keys do not function replace the upper PCA 8 If the voltage readings in Table 5 1 are incorrect disconnect the keypad cable from the key...

Страница 20: ...magnet mounted in the hub passes the hall effect sensor once per motor revolution The hall effect sensor send one pulse to the lift control system per revolution The system knows how far the lift tra...

Страница 21: ...are not any adequate means of troubleshooting these components other than substituting known good components Replace only one component at a time If the component that you replaced does not correct th...

Страница 22: ...re approximately 0 Vdc when the switch is not operated and approximately 5 Vdc when the switch is operated If the operated voltage is 0 Vdc or significantly low remove both blue wires from the zero se...

Страница 23: ...measure the voltage between terminal 1 of J5 red wire and terminal 3 of J5 white wire on the lower PCA Slowly rotate the drive motor flywheel The voltage should read approximately 5 Vdc as a flywheel...

Страница 24: ...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...

Страница 25: ...rcuit 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 b...

Страница 26: ...from the lift motor capacitor but leave the remaining red wire connected to the capacitor terminal 3 Remove the black lift motor lead from the lift motor capacitor but leave the remaining black wire...

Страница 27: ...C944 Treadmill Page 27 Diagram 6 1 Exploded view of the Lift Motor with Rotation Sensor Lift Motor Rotation Sensor Mounting Bracket Rotation Sensor Magnet Hub Magnet...

Страница 28: ...19 14 Remove the screw and washer that secure the rotation sensor to the sensor bracket see Diagram 6 1 15 Position the revolution sensor at its mounting location 16 Position the screw and washer tha...

Страница 29: ...ll frame 26 Return the treadmill to an upright position 27 Connect the black lift motor lead to the terminal of the lift motor capacitor that already has a black wire 28 Connect the red lift motor lea...

Страница 30: ...it switch or Step 9 to remove the zero sense switch Removing the Upper Limit Switch WARNING When power is applied to the treadmill the wires connected to the upper and lower limit switches carry high...

Страница 31: ...to the switch bracket see Diagram 4 2 8 If you are removing the zero sense switch THEN OTHERWISE Continue with the next step Skip to Step 11 Removing the Zero Sense Switch 9 Carefully remove the blue...

Страница 32: ...aside the actuator block 15 Slide the actuator shaft from the switch bracket 16 If you are removing the switch bracket THEN OTHERWISE Continue with the next step Skip to Step 20 Removing and Replacing...

Страница 33: ...tep 35 to replace the zero sense switch Replacing the Upper Lift Limit Switch 27 Position the limit switch at its mounting location 28 Replace the screws and washers that secure the limit switch to th...

Страница 34: ...its mounting location 36 Replace the screws and washers that secure the limit switch to the switch bracket 37 Connect the blue wires disconnected in Step 9 to the switch terminals 38 Calibrate the li...

Страница 35: ...from the mounting bracket Replacing the Lift Motor Capacitor 5 Position the lift motor capacitor in the capacitor mounting bracket Note Wire length and wire assembly configuration may limit the mounti...

Страница 36: ...admill put a drop cloth underneath the treadmill when you perform Step 2 2 Place the treadmill on its left side 3 Remove the lower bolt and nut that secure the lift motor to the lift platform Note It...

Страница 37: ...uts used to mount the lift platform are Kep nuts which do not require a separate washer If you do not use Kep nuts to mount the lift platform use washers when you mount the lift platform to the treadm...

Страница 38: ...4 Each of these packages should be removed with a proper IC removal tool see the illustrations below 4 The IC s may inserted into their socket by hand by carefully aligning the notch on the IC with th...

Страница 39: ...C944 Treadmill Page 39 Wiring Diagram 7 1 C944 SCR 120 Vac J9...

Страница 40: ...C944 Treadmill Page 40 Block Diagram 7 2 C944 SCR 120 Vac...

Страница 41: ...C944 Treadmill Page 41 Wiring Diagram 7 3 C944 SCR 240 Vac Snubber Black Black J3 J4 J1 J5 J2 J6 Blue Blue Brown...

Страница 42: ...C944 Treadmill Page 42 Block Diagram 7 4 C944 SCR 240 Vac...

Страница 43: ...C944 Treadmill Page 43 Wiring Diagram 7 5 C944 PWM 120 Vac F1 Lift Fuse 2A Slow Blow...

Страница 44: ...C944 Treadmill Page 44 Block Diagram 7 6 C944 PWM 120 Vac...

Страница 45: ...C944 Treadmill Page 45 Wiring Diagram 7 7 C944 PWM 240 Vac F1 Lift Fuse 2A Slow Blow...

Страница 46: ...C944 Treadmill Page 46 Block Diagram 7 8 C944 PWM 240 Vac...

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