Precor C556 Service Manual
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Precor C556 Service Manual

Precor C556 Service Manual

Elliptical fitness crosstrainer
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C556 Elliptical Fitness Crosstrainerl
C556 Elliptical Fitness Crosstrainer
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
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  • Page 1 C556 Elliptical Fitness Crosstrainer 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.

  • Page 2: Section One - Things You Should Know

    When servicing a C556 it is critical that you are aware of which version of C556 you are servicing. The differences in the versions may greatly impact service requirements and procedures. For convenience, the versions detailed below will be referred to as version 1 or version 2 in the reminder of this service manual.
  • Page 3 C556 Elliptical Fitness Crosstrainerl Caution statements are intended to prevent damage to the EFX as a result of the current activity. Caution statements included in this manual are listed below: • When it is necessary to lift or move the EFX, ensure that the EFX has adequate support and that you use proper lifting techniques.

  • Page 4: General Information

    • Do not use accessory attachments that are not recommended by the manufacturer-such attachments might cause injuries. General Information For the latest exploded view, part number and part pricing information, visit the Precor dealer website at “www.precor.com/Dealer”. Tools Required Multimeter...

  • Page 5: Section Two - Preventive Maintenance

    “Simple Green” is the only cleaning solution that has been tested and approved for use on the C556 ramps. Use of any other cleaner, may cause degradation of the ramp anodizing and void the ramp warranty. The use of an acid (citric) based cleaner will cause ramp anodizing damage and is not authorized by Precor.

  • Page 6: Quarterly Maintenance

    C556 Elliptical Fitness Crosstrainer Quarterly Maintenance Remove the rear covers. Check the step up and input belt alignment and tension as in Procedure 5.3. Replace the rear cover. On-Site Preventive Maintenance (Service Technician) When you are called to service a EFX, perform these preventive maintenance activities: •...

  • Page 7: Procedure 3.1 - Software Access Codes

    See Diagram 3.1. The C556 display does not utilize key positions #2 and #3, however, they must be counted to correctly locate keys #4 through #6. On the C556 display key #1 is the RESET key and key #4 is the QUICK START key.

  • Page 8: Procedure 3.2 - Accessing The Diagnostic Program

    The message HEART RATE TEST will be displayed followed by the unfiltered (U), filtered (F) and polar (P) heart rate readings if the heart rate option is installed in the C556 and a chest strap transmitter or a test transmitter is being used. If the heart rate option is not installed in the C556, the message NO HEART RATE RECEIVER will be displayed instead of the heart rate readings.

  • Page 9: Procedure 3.3 - Displaying The Odometer

    1392.5. Press the ENTER key to advance to total hours. The message HOURS will be displayed followed by the total number of hours that the C556 has been in use. Press the ENTER key to advance to software version.

  • Page 10: Procedure 3.4 - Club Settings

    C556 Elliptical Fitness Crosstrainer Procedure 3.4 - Club Settings Enter the club settings by pressing keys RESET,5,6,5,1,5,6,5, sequentially. The message SELECT LANGUAGE will be displayed followed by the currently selected keys to select the language preference. Press the ENTER language. Use the key to advance to units of measurement.

  • Page 11: Procedure 3.5 - Documenting Software Problems

    If you isolated the problem to either the PROM, upper PCA, or lower PCA, include the information you recorded with the malfunctioning PROM or PCA when you ship it to Precor. When a problem occurs, record the following information: •...
  • Page 12 Resistance Level 20. Operate the EFX for another 2–3 minutes. If the resistance of the C556 does not change or the EFX operation feels inconsistent with Resistance Levels 1 and 10, troubleshoot per Procedure 6.5. 10. Check the LED’s mounted on the upper PCA and the function keys displayed on the electronic console by performing Procedure 3.2.

  • Page 13: Procedure 5.1 - Measuring The Resistance Of An Eddy Current Magnet

    C556 Elliptical Fitness Crosstrainerl Procedure 5.1 - Measuring the Resistance of an Eddy Current Magnet Caution Remove power from the EFX before you measure magnet resistance. Procedure Set the on/off switch in the “off” position, then unplug the power cord from the wall outlet.

  • Page 14: Procedure 5.2 - Inspecting And Adjusting Belt Alignment And Tension

    C556 Elliptical Fitness Crosstrainer Procedure 5.2 - Inspecting and Adjusting Belt Alignment and Tension Procedure Set the on/off switch 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, Things You Should Know.
  • Page 15 Tension Bolt Tension Bolt 14. Place a belt gauge (Precor part # 20030-117 or equivalent) in the middle of the step up belt and the center of the belt span (see Diagram 5.2). Lay a straight edge along the length of the belt and beside the belt gauge.
  • Page 16 C556 Elliptical Fitness Crosstrainer Diagram 5.2 - Measuring Belt tension 20 lbs 1/4” 16. If the locking tabs on the right and left tension bolts have not been straightened, use pliers to bend the locking tabs out of the way so that the bolts can be turned.
  • Page 17 C556 Elliptical Fitness Crosstrainerl 21. Using your finger, press in on the center of the lower span of the input belt. Compare the pressure required to deflect the input belt to the pressure required to deflect the step up belt.

  • Page 18: Procedure 6.1 - Troubleshooting The Lower And Upper Interconnect Cables

    C556 Elliptical Fitness Crosstrainer Procedure 6.1 - Troubleshooting the Lower and Upper Interconnect Cables Anti-static kits can be ordered from Precor (part number 20024-101). Troubleshooting the Upper Interconnect Cable Set the on/off switch in the “off” position. WARNING Before continuing with this procedure, review the Warning and Caution statements listed in Section One, Things You Should Know.
  • Page 19 Procedure 4. 14. Replace the lower PCA shield, rear cover (Procedure 7.1) and the main column cover (Procedure 7.27). If the unit still does function correctly, contact Precor Technical Support. Page 19...

  • Page 20: Procedure 6.2 - Troubleshooting The Keypad And Upper Pca

    C556 Elliptical Fitness Crosstrainer Procedure 6.2 - Troubleshooting the Keypad and Upper PCA If the function keys on the electronic console are unresponsive, the problem may be either the upper PCA or keypad. The keys on this unit are touch sensitive keys. It is necessary to use the keypad diagnostics to troubleshoot the key functions.

  • Page 21: Keypad Connector

    C556 Elliptical Fitness Crosstrainerl Diagram 6.3 - Upper PCA & Keypad Upper PCA Keypad Connector Keypad Set the on/off switch in the “on” position. If a “key depressed” message is immediately displayed when the EFX is powered up, replace the upper PCA.

  • Page 22: Procedure 6.3 - Upper Display Does Not Illuminate

    C556 Elliptical Fitness Crosstrainer Procedure 6.3 - Upper Display does not Illuminate Set the on/off switch in the “off” position, unplug the line cord from the wall outlet. Attach the anti-static wrist strap to your arm, then connect the ground lead of the wrist strap to the units frame.
  • Page 23 C556 Elliptical Fitness Crosstrainerl 18. Set the on/off switch in the “on” position. Repeat step 15. If the reading is still significantly low, replace the lower PCA. If the reading is now good, the problem is either one of the interconnect cables or the upper PCA.

  • Page 24: Circuit Description

    C556 Elliptical Fitness Crosstrainer Procedure 6.4 - Troubleshooting the Speed Sensor Circuit Description The speed sensor is a hall effect sensor. A magnet is mounted on the right hand crankarm and passes the hall effect sensor once per revolution. The output from the speed sensor is a 5 Vdc square wave, the frequency of which indicates the operating speed.
  • Page 25 C556 Elliptical Fitness Crosstrainerl Repeat the measurement in step 5 at terminals 1 and 2 of J8 on the lower PCA. If the voltage is missing or significantly low, replace the speed sensor assembly. If you have performed all of the above tests and the stride rate is not displayed when the unit is operated, there are three parts that could cause the problem.
  • Page 26 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 there is still no resistance, call Precor Technical Support.
  • Page 27 C556 Elliptical Fitness Crosstrainerl If the voltage is still significantly high or low, 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.
  • Page 28 C556 Elliptical Fitness Crosstrainer Procedure 6.6 - Troubleshooting Hand Held Heart Rate Circuit Description The hand held heart rate system is actually a dual system, that is, it can accept a heart rate signal from either the hand held heart rate contacts on the unit’s handlebar or from a Polar heart rate chest strap transmitter.
  • Page 29 C556 Elliptical Fitness Crosstrainerl Set the on/off switch in the “off” position and remove the display housing. Verify the internal chest strap setting is set as shown in Diagram 6.4. Verify that a ferrite bead is installed on the heart rate PCA to upper PCA cable.
  • Page 30 C556 Elliptical Fitness Crosstrainer 15. Set the on/off switch in the “off” position. Refer to Diagram 6.4 for the following measurements. With an ohmmeter measure between the “lower right contact” pin on the J1 connector and the lower right hand held heart rate contact on the handlebar. The reading should be 1 Ω...
  • Page 31 C556 Elliptical Fitness Crosstrainerl 25. Set the on/off switch in the “off” position, and remove the spare jumper from J14 of the heart rate PCA. Re-locate all potential sources of radiation. Set the on/off switch in the “on” position and repeat the procedure in step 6.

  • Page 32: Procedure 7.1 - Replacing The Mid-Point Cover

    C556 Elliptical Fitness Crosstrainer Procedure 7.1 - Replacing the Mid-Point Cover Set the on/off switch 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, Things You Should Know.

  • Page 33: Procedure 7.2 - Replacing The Display Enclosure Or Upper Pca

    Procedure 7.2 - Replacing the Display Enclosure or Upper PCA Anti-static kits (part number 20024-101) can be ordered from Precor. The keyboard is part of the display housing front panel. If the keyboard is not functioning properly, replace the display housing front panel.

  • Page 34: Keyboard Connector

    C556 Elliptical Fitness Crosstrainer Diagram 7.2 - Display Housing Front Panel, Rear View Upper PCA Interconnect Cable Connector Keyboard Connector Position the upper PCA at its mounting location on the display housing front panel (refer to Diagram 7.2). Replace and tighten the upper PCA mounting screws.

  • Page 35: Procedure 7.3 - Replacing The Lower Pca

    C556 Elliptical Fitness Crosstrainerl Procedure 7.3 - Replacing the Lower PCA Removing the Lower PCA Set the on/off switch in the ”off” position. WARNING Before continuing with this procedure, review the Warning and Caution statements listed in Section One, Things You Should Know.
  • Page 36 11. Remove the ground lead of the wrist strap from the EFX frame, then remove the wrist strap from your arm. 12. Re-install the rear cover, then check the operation of the C556 as described in Section Four. Page 36...

  • Page 37: Procedure 7.4 - Replacing The Upper And/Or Lower Interconnect Cables

    C556 Elliptical Fitness Crosstrainerl Procedure 7.4 - Replacing the Upper and/or Lower Interconnect Cables Before you install a new interconnect cable, ensure that the interconnect cable is defective as described in Procedure 6.1. Procedure Set the on/off switch in the “off” position.
  • Page 38 C556 Elliptical Fitness Crosstrainer Replacing the Lower Interconnect Cable 11. Remove the rear cover. Remove the shield from the lower PCA. Disconnect the interconnect cable from the lower PCA (connector J5). See Diagram 7.3. 12. The upper and lower interconnect cables are connected at the mid-point of the main column.
  • Page 39 C556 Elliptical Fitness Crosstrainerl Procedure 7.5 - Replacing the Power Entry Module (Units manufactured before 10-16-2000) Removing the Power Entry Module Set the on/off switch in the off position, then unplug the power cord from the wall outlet and from the EFX.
  • Page 40 C556 Elliptical Fitness Crosstrainer Note the orientation of the power entry module. The new module must be positioned with the same orientation. Remove the screws that secure the power entry module to the power entry module mounting bracket. Replacing the Power Entry Module Position the new power entry module at its entry position.
  • Page 41 C556 Elliptical Fitness Crosstrainerl Procedure 7.6 - Replacing the Line Filter Removing the Line Filter Set the on/off switch 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, Things You Should Know.
  • Page 42 C556 Elliptical Fitness Crosstrainer Procedure 7.7 - Replacing the ON/OFF Switch Removing the ON/OFF Switch Set the on/off switch 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, Things You Should Know.
  • Page 43 C556 Elliptical Fitness Crosstrainerl Procedure 7.8 - Replacing a Crankarm Assembly Removing a Crankarm Assembly Set the on/off switch 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, Things You Should Know.
  • Page 44 C556 Elliptical Fitness Crosstrainer The crankarm removed from the right hand side has a magnet in a recess on the lower backside of the crankarm. The magnet is held in the crankarm by it’s magnetism. Remove the magnet either by prying it out with a thin bladed screwdriver or by placing a heavy piece of steel near the magnet and allowing the it to adhere to the heavy piece of steel.
  • Page 45 C556 Elliptical Fitness Crosstrainerl Procedure 7.9 - Replacing the Input Pulley Belt Set the on/off switch 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, Things You Should Know.
  • Page 46 C556 Elliptical Fitness Crosstrainer Procedure 7.9 - Replacing the Step-Up Pulley Belt Set the on/off switch 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, Things You Should Know.
  • Page 47 C556 Elliptical Fitness Crosstrainerl Procedure 7.11 - Replacing the Input Drive Assembly Set the on/off switch 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, Things You Should Know.
  • Page 48 C556 Elliptical Fitness Crosstrainer Remove the input drive assembly. Slide both belts off of the ends of the input drive assembly. 10. Hold the replacement input drive assembly at it’s mounting position and slide the input belt over and past the pillow block bearing on the left side of the input drive assembly. Slide the step belt over and beyond the pillow block bearing on the right side of the input drive assembly.
  • Page 49 C556 Elliptical Fitness Crosstrainerl 15. Replace the crankarms per Procedure 7.7. The crankarms must be parallel to the frame uprights. See Diagram 7.6. If necessary loosen the four drive unit mounting bolts, align the drive unit and torque the drive unit mounting bolts to 500 inch pounds.
  • Page 50 C556 Elliptical Fitness Crosstrainer Procedure 7.12 - Replacing the Step-Up Pulley Assembly Set the on/off switch 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, Things You Should Know.
  • Page 51 C556 Elliptical Fitness Crosstrainerl Procedure 7.13 - Replacing the Speed Sensor Assembly Removing the Speed Sensor Assembly Set the on off/off switch 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, Things You Should Know.
  • Page 52 C556 Elliptical Fitness Crosstrainer Replace mounting nut that secures the speed sensor to the frame. Reconnect the speed sensor cable to the lower PCA. Re-install the rear cover, then check the operation of the C546 as described in Section Four.
  • Page 53 C556 Elliptical Fitness Crosstrainerl Procedure 7.14 - Replacing the Eddy Current Magnet Assembly Removing the Magnet Assembly Set the on/off switch 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, Things You Should Know.
  • Page 54 C556 Elliptical Fitness Crosstrainer Check that the eddy current disk is centered between the “legs” of the eddy current magnet. If not, loosen the centering bolts, see Diagram 7.9, and center the eddy current magnet on the eddy current disk. Torque the centering bolts to 150 inch pounds.

  • Page 55: Procedure 7.15 - Replacing A Wheel Assembly

    C556 Elliptical Fitness Crosstrainerl Procedure 7.15 - Replacing a Wheel Assembly Procedure Set the on/off switch in the “off” position, then unplug the power cord from the wall outlet. On February 2, 2004 the wheel assembly was modified to a wheel assembly utilizing larger bearings and a larger mounting bolts.
  • Page 56 C556 Elliptical Fitness Crosstrainer Plug the power cord into the wall outlet, set the on/off switch in the “on” position and thoroughly test the operation of the wheel assemblies. Remove the two wheel axle bolts from the wheel. Discard the bolts and the wheel.

  • Page 57: Procedure 7.16 - Replacing A Stairarm Pedal

    C556 Elliptical Fitness Crosstrainerl Procedure 7.16 - Replacing a Stairarm Pedal Set the on/off switch in the “off” position, then unplug the power cord from the wall outlet Loosen and remove the two bolts that fasten the stairarm pedal onto the stairarm.

  • Page 58: Procedure 7.17 - Replacing A Stairarm

    C556 Elliptical Fitness Crosstrainer Procedure 7.17 - Replacing a Stairarm Set the on/off switch in the “off” position, then unplug the power cord from the wall outlet. Remove the three bolts that fasten the pivot arm connector to the stairarm. See Diagram 7.11.
  • Page 59 C556 Elliptical Fitness Crosstrainerl 10. Install the wheel assembly on the replacement stairarm. Install and hand tighten the four the four screws removed in step 9. Torque the screws to 70 inch pounds. 11. Slide the replacement stairarm onto the crankarm. Replace the retaining clip removed in step 4.

  • Page 60: Procedure 7.18 - Replacing A Ramp Assembly

    C556 Elliptical Fitness Crosstrainer Procedure 7.18 - Replacing a Ramp Assembly Procedure Set the on/off switch in the “off” position, then unplug the power cord from the wall outlet. Remove the three bolts that fasten each pivot arm connector to the stairarm. See Diagram 7.9.
  • Page 61 C556 Elliptical Fitness Crosstrainerl Diagram 7.13 - Front Ramp Mounting Ramp End Cap Mounting Bolt Remove the ramp from the EFX. Slide the ramp end cap into the ramp assembly. Fasten the ramp end cap with the screws removed in step 4.

  • Page 62: Procedure 7.19 - Replacing A Handlebar

    C556 Elliptical Fitness Crosstrainer Procedure 7.19 - Replacing a Handlebar Set the on/off switch in the “off” position, then unplug the power cord from the wall outlet. Remove the four screws that fasten the handlebar to the upper pivot arm.
  • Page 63 C556 Elliptical Fitness Crosstrainerl Procedure 7.20 - Replacing the Stub Tensioner Set the on/off switch 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, Things You Should Know.
  • Page 64 C556 Elliptical Fitness Crosstrainer Procedure 7.21 - Replacing a Pivot Arm Connector Set the on/off switch 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, Things You Should Know.
  • Page 65 C556 Elliptical Fitness Crosstrainerl Procedure 7.22 - Replacing a Lower Pivot Arm Set the on/off switch 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, Things You Should Know.
  • Page 66 C556 Elliptical Fitness Crosstrainer Procedure 7.23 - Replacing an Upper Pivot Arm or Bearings Set the on/off switch 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, Things You Should Know.
  • Page 67 C556 Elliptical Fitness Crosstrainerl Diagram 7.19 - Upper Pivot Arm Components Lower Mounting Bolt Lower End Tolerance Upper End Ring Roller Bearing Wave Washer Retaining Ring Needle/Roller Bearing Assembly Retaining Ring The bearing in the lower end of the upper pivot arm is replaceable. The bearings in the upper end of the upper pivot arm are not field replaceable.
  • Page 68 C556 Elliptical Fitness Crosstrainer Procedure 7.24 - Replacing the Upper Main Column Set the on/off switch 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, Things You Should Know.
  • Page 69 C556 Elliptical Fitness Crosstrainerl Draw the upper interconnect cable out of the access hole at the bottom of the upper main column as shown in Diagram 7.20. 10. Set the upper main column at it’s mounting position, hand start the four mounting bolts removed in step 5.
  • Page 70 C556 Elliptical Fitness Crosstrainer Procedure 7.25 - Replace the Rear Cover For version 1 units continue with step 2. For version 2 units skip to step 9. Set the on/off switch in the “off” position, then unplug the power cord from the wall outlet.
  • Page 71 C556 Elliptical Fitness Crosstrainerl Set the on/off switch in the “off” position, then unplug the power cord from the A.C. outlet. 10. The rear cover is a four piece cover; front, top, left and right sections. If the front cover section is being removed, the frame cover must also be removed (See Diagram 7.22).
  • Page 72 C556 Elliptical Fitness Crosstrainer Diagram 7.23 - Top Cover Section (with right & left cover sections removed) Top Cover Section Mounting Screw Front Cover Frame Section Upright 15. If all four cover sections have been removed, first replace the frame cover and front cover section, then the top cover section and then the left and right cover sections as described below.
  • Page 73 C556 Elliptical Fitness Crosstrainerl Procedure 7.26 - Replacing a Power Entry Module (Units manufactured after 10-15-2000) Procedure Note: The power entry module on this EFX is a multifunction unit. It functions as a power entry module, A.C. line fuse holder, on/off switch and A.C.ine filter.
  • Page 74 C556 Elliptical Fitness Crosstrainer module with the screws removed in step 4. Replace the wires removed in step 3. Connect the blue wire to terminal D and the brown wire to terminal A of the power entry module. Replace the cover per Procedure 7.1.
  • Page 75 C556 Elliptical Fitness Crosstrainerl Procedure 7.27 - Replacing a Power Entry Module Fuse Procedure Set the on/off switch in the off position. Remove the A.C. line cord from the A.C. outlet and from the power entry module. Using a thin bladed screwdriver, carefully pry the fuse access door open (See Diagram 7.25).
  • Page 76 C556 Elliptical Fitness Crosstrainer Set the on/off switch in the on position and test the EFX per Section Four. Page 76...
  • Page 77 C556 Elliptical Fitness Crosstrainerl Procedure 7.28- Replacing the PROM Anti-static kits (part number 20024-101) can be ordered from Precor. 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.
  • Page 78 C556 Elliptical Fitness Crosstrainer Wiring Diagram 8.1 - C556 120 Vac Units manufactured before 10-16-2000 Power Entry Module Units manufactured after 10-15-2000 Speed Sensor Page 78...
  • Page 79 C556 Elliptical Fitness Crosstrainerl Block Diagram 8.2 - C556 120 Vac Page 79...
  • Page 80 C556 Elliptical Fitness Crosstrainer Wiring Diagram 8.3 - C556 240 Vac Units manfactured before 10-16-2000 Units manufactured after 10-15-2000 Power Entry Module Speed Sensor Page 80...
  • Page 81 C556 Elliptical Fitness Crosstrainerl Block Diagram 8.4 - C556 240 Vac Page 81...

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