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C556 Self Powered Elliptical Fitness Crosstrainerl

Page 29

Procedure 7.3 - Replacing the Lower PCA

Removing the Lower PCA 

1.

Remove the rear cover and disconnect the red battery lead from terminal M6 of the lower 
PCA.

WARNING

Before continuing with this procedure, review the Warning and Caution statements listed in 
Section One, Things You Should Know.

2.

Remove the rear cover per Procedure 7.19.

3.

Attach the wrist strap to your arm, then connect the ground lead of the wrist strap to the EFX 
frame.

4.

Disconnect the all of cables and wiring from the lower PCA.

5.

Remove the four screws that secure the lower PCA to the drive unit upright, see Diagram 
7.3.

Diagram 7.3 - Lower PCA

Содержание C556

Страница 1: ...required to repair and maintain this product This document contains general product information software diagnostic procedures when available preventative maintenance procedures inspection and adjustm...

Страница 2: ...ther be necessary to either equip the unit with the optional external power supply or have an assistant pedal on the unit while voltage measurements are being taken Because of the danger of working on...

Страница 3: ...s damaged in any way exercise extreme caution while operating and checking the EFX When operating the EFX do not wear loose clothing Do not wear shoes with heels or leather soles Check the soles of yo...

Страница 4: ...lean the EFX s frame covers stairarms stairarm ramps and stairarm wheels using water or Simple Green Wipe the surface of the electronic console with a damp sponge or soft cloth Dry with a clean towel...

Страница 5: ...ance activities Perform the software diagnostics Check LED and keypad function Record the odometer reading Check speed sensor function is the stride rate displayed when the unit is in operation If not...

Страница 6: ...e delay between key presses is short If too much time is taken between key presses the access procedure will be aborted If the access is aborted it will be necessary to start over from the beginning S...

Страница 7: ...key is functioning Check each key in this manner including the numeric keyboard Press and hold the ENTER key for 2 seconds to advance to the heart rate test 6 The message HEART RATE TEST will be disp...

Страница 8: ...number of hours that the C556 has been in use Press the ENTER key to advance to software version 7 The message SOFTWARE VERSION will be displayed followed by the software versions of the upper and lo...

Страница 9: ...asurement Use the and keys to select either U S Standard or METRIC measurements Press the ENTER key to advance to maximum workout time 6 The message SET MAX WORKOUT TIME will be displayed followed by...

Страница 10: ...p it to Precor When a problem occurs record the following information Model and serial number Software version number Note Look at the PROM mounted on the upper PCA A label on the PROM indicates the s...

Страница 11: ...alert for unusual rubbing hitting grinding or squeaking noises 5 If the EFX makes unusual noises or the electronic display does not change appropriately troubleshoot per Section 6 6 Press the RESISTAN...

Страница 12: ...at will conveniently read up to 50 3 Remove the three generator output leads from the lower PCA brown from terminal M3 blue from terminal M4 and violet from terminal M4 4 With an ohmmeter read between...

Страница 13: ...s and mounting bracket may be extremely hot 2 Remove the three screws that fasten the load resistor assembly and shield to the frame upright Rotate the load resistor assembly 180 degrees and set it on...

Страница 14: ...nue with step 7 6 Place a 20030 108 or equivalent belt gauge on the generator belt as shown in Diagram 5 3 Diagram 5 3 Generator Belt Tension Measurement 7 The belt gauge should read 60 lbs If the gen...

Страница 15: ...the belt tension should be set 20 lbs higher than the previous readings Therefore a new input pulley belt should be tensioned to 120 lbs and a new generator belt should be tensioned to 80 lbs Over ti...

Страница 16: ...e Warning and Caution statements listed in Section One Things You Should Know 10 Attach the anti static wrist strap to your arm then connect the ground lead of the wrist strap to the units frame 11 Re...

Страница 17: ...the four mounting screws removed in step 4 Trouble shoot the lower interconnect cable starting with step 9 Troubleshooting the Lower Interconnect Cable 17 Disconnect the lower interconnect cable from...

Страница 18: ...d of the wrist strap to the units frame 2 If the EFX powers up and functions normally until a particular key s is pressed skip to step 12 3 If a key depressed message is immediately displayed when the...

Страница 19: ...the diagnostics program per procedure 3 2 If the key s necessary to access the diagnostic program is not functioning skip to step 14 12 Test the keypad per Procedure 3 2 step 4 13 If all of the keys...

Страница 20: ...must be inspected by an electrician 5 Troubleshoot the generator per Procedure 6 4 6 If the generator was found to be good the problem will be in either the lower PCA upper PCA or the upper to lower...

Страница 21: ...roubleshoot the upper to lower PCA interconnect cables per Procedure 6 1 11 If the upper to lower interconnect cables are found to be good replace the upper PCA 12 If you have performed all of the abo...

Страница 22: ...asurements are being taken Because of the danger of working on the unit while it is in motion using the optional external power supply is strongly recommended 1 Perform the generator resistance test p...

Страница 23: ...chest strap signal is not being received the system will accept the hand held signal Note There are four typical failure modes for the hand held chest strap heart rate system They are 1 hand held is n...

Страница 24: ...so that it no longer affects the heart rate PCA Televisions cell phones Cardio theatre receivers etc are possible sources of radiated energy 12 Set the on off switch in the off position and remove th...

Страница 25: ...heart rate PCA 19 If 5 Vdc is not present remove the connector from J4 of the heart rate PCA Measure between the ground and 5 Vdc pins of the connector just removed from the heart rate PCA for 5 Vdc I...

Страница 26: ...upper mid point cover Remove two screws that fasten the lower mid point cover Remove both halves of the cover and the split gasket See Diagram 7 1 Diagram 7 1 Mid Point Cover 27 Fit the two replacemen...

Страница 27: ...Section One Things You Should Know 2 Attach the anti static wrist strap to your arm then connect the ground lead of the wrist strap to the units frame 3 Remove the four screws that secure the display...

Страница 28: ...nect the keyboard cable to the upper PCA 10 Reconnect the upper interconnect cable to the upper PCA 11 Remove the ground lead of the wrist strap from the EFX frame then remove the wrist strap from you...

Страница 29: ...nuing with this procedure review the Warning and Caution statements listed in Section One Things You Should Know 2 Remove the rear cover per Procedure 7 19 3 Attach the wrist strap to your arm then co...

Страница 30: ...The 3 conductor cable from the generator as follows brown to AC1 blue to AC2 and violet to AC3 Connect the green yellow frame ground wire to M8 From the battery connect the red wire to M6 and the bla...

Страница 31: ...r and lower interconnect cables are connected at the mid point of the main column Remove the mid point column cover per Procedure 7 1 6 Disconnect the upper interconnect cable from the mid point conne...

Страница 32: ...2 Tape the replacement interconnect cable to the old interconnect cable at the lower PCA end of the old interconnect cable 14 Carefully pull the old interconnect cable out of the mid point access hole...

Страница 33: ...of the rear cover 2 Remove the stairarm assembly as described in Procedure 7 12 steps 2 to 4 Note Notice the position of the two crank arms When the crankarms are replaced they must be positioned so t...

Страница 34: ...the input pulley shaft Torque the nut to 300 in lbs 7 Replace the stairarm assembly as described in Procedure 7 12 steps 11 to 12 8 If you are replacing both crankarm assemblies repeat steps 6 and 7 f...

Страница 35: ...t of the drive unit 7 Remove the input pulley belt Set the replacement input pulley belt in it s mounting position on the step up pulley assembly 8 Set the step up pulley assembly with the generator a...

Страница 36: ...th both the generator and input belts out of the drive unit 7 Remove the generator belt Set the replacement generator belt in it s mounting position on the step up pulley assembly 8 Set the step up pu...

Страница 37: ...es as described in Procedure 7 12 steps 2 to 4 3 Remove the crankarm assemblies as described in Procedure 7 5 steps 2 to 5 4 Remove the input pulley assembly mounting nuts 2 per pillow block bearing 5...

Страница 38: ...t or dead blow hammer tap the other pillow block bearing until the edge of the pillow block bearing is parallel with the edge of the frame upright Replace the nuts in the other pillow block bearing an...

Страница 39: ...generator belts as described below a Straighten the locking tabs and turn the left and right tension bolts counterclockwise until tension is removed from the both belts See Diagram 5 2 b Remove both t...

Страница 40: ...e right and left wheel should be replaced Additionaly two new wheel covers 43702 504 will be required accomodate larger wheel mounting bolts 3 The wheel assembly is provided as an assembly that includ...

Страница 41: ...rd the bolts and the wheel Replacement wheel mounting bolts are furnished with the replacement wheel 8 Install the replacement wheel assembly in the wheel cover Install and hand tighten the two wheel...

Страница 42: ...e two bolts that fasten the stairarm pedal onto the stairarm 2 Remove the stairarm pedal from the stairarm 3 Set the replacement stairarm pedal at it s mounting position on the stairarm 4 Install and...

Страница 43: ...the rear cover per Procedure 7 19 4 Remove the retaining clip that fastens the stairarm onto the crankarm Slide the stairarm off of the crankarm 5 Loosen and remove the two bolts that fasten the stair...

Страница 44: ...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 ret...

Страница 45: ...arm See Diagram 7 7 3 Rotate both stairarms to the rear of the unit 4 Remove the screws that fasten the ramp end cap to the ramp assembly Slide the ramp end cap out of the ramp assembly and rotate the...

Страница 46: ...the rear mounting bolts and the two front bottom mounting bolts Torque the rear mounting bolts to 120 inch pounds Torque the two front bottom mounting bolts to 100 inch pounds 10 Rotate both stairarm...

Страница 47: ...ws that fasten the handlebar to the upper pivot arm Diagram 7 10 Handlebar Mounting 2 Set the replacement handlebar in it s mounting position Hand start the four mounting screws Center the handlebar i...

Страница 48: ...ve the retaining ring that fastens the lower pivot arm to the pivot arm connector Diagram 7 11 Pivot Arm Connector 3 Remove the stairarm connector Remove the wave washer from the pivot arm connector 4...

Страница 49: ...ns the lower pivot arm to the stairarm connector See Diagram 7 12 2 Remove the bolt that fastens the lower pivot arm to the upper pivot arm Diagram 7 12 Pivot Arms 3 Remove the lower pivot arm 4 Slide...

Страница 50: ...he upper pivot arm The bearing shaft will be very tight a long handled socket wrench with a 7 16 hex key will be necessary for removal See Diagram 7 13 Diagram 7 13 Upper Pivot Arm 3 Remove the upper...

Страница 51: ...e in the lower front of the upper main column and extract the interconnect cables 4 Disconnect the upper interconnect cable from the mid point connector See Diagram 7 14 Diagram 7 14 Upper Main Column...

Страница 52: ...interconnect cable out of the access hole at the bottom of the upper main column as shown in Diagram 7 14 9 Set the upper main column at it s mounting position hand start the four mounting bolts remov...

Страница 53: ...oving the top cover See Diagram 7 16 remove the two phillip screws that fasten the top cover section to the frame upright Remove three screws that fasten the top cover section to the rear cover suppor...

Страница 54: ...ront cover section to the frame 8 Set the top cover section in it s mounting position replace and tighten the two phillips screws that fasten the top cover section to the frame upright See Diagram 7 1...

Страница 55: ...of the resistors 4 Remove the screw that fastens one of the load resistor clips to the mounting bracket Remove the resistor s being replaced 5 Slide the replacement resistor into its mounting position...

Страница 56: ...n step 2 8 Route the load resistor wires into the slots at the top of the frame upright This will keep the wires away from all moving parts such as the stairarms 9 Reconnect the red battery lead remov...

Страница 57: ...nerator Mounting 5 Remove the four mounting bolts that fasten the generator to the frame remove the generator belt from the generator Remove the generator adjustment bolt from the generator See Diagra...

Страница 58: ...elt tension is correct torque the four generator mounting bolts to 150 inch pounds Securely tighten the forward nut on the adjustment bolt 9 Reconnect the red battery lead removed in step 1 and replac...

Страница 59: ...nd J4 connectors from the lower PCA 4 While supporting the lower PCA and battery assembly remove the four screws that fasten the battery bracket to the frame upright 5 Swing the lower PCA and battery...

Страница 60: ...ry assembly to the frame upright with the screws removed in step 4 9 Reconnect the J3 and J4 connectors to the lower PCA 10 Reconnect the green yellow frame ground wire to terminal M8 of the lower PCA...

Страница 61: ...power input jack mounting plate Remove the power input jack from the power input jack mounting plate 6 Fasten the replacement power input jack to the power input mounting with the mounting nut provide...

Страница 62: ...uare package PLCC44 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...

Страница 63: ...C556 Self Powered Elliptical Fitness Crosstrainerl Page 63 Wiring Diagram 8 1 C556 Self Powered 20 Ohm 300W Load Resistor...

Страница 64: ...C556 Self Powered Elliptical Fitness Crosstrainer Page 64 Block Diagram 8 2 C556 Self Powered...

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