Precor 9.17 Appendix Download Page 42

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917, 917si Treadmillr

Page 42

Block Diagram 7.2 - 917 and 917si (120 Vac)

Summary of Contents for 9.17

Page 1: ...in this product This document contains general product information software diagnostic procedures when available preventative maintenance procedures inspection and adjustment procedures troubleshootin...

Page 2: ...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 ca...

Page 3: ...nuous duty Speed 1 0 to 10 mph 1 6 to 16 kph 10 mph is equivalent to a 6 minute mile Incline 0 to 10 grade Power 120 Vac 50 60 Hz 240 Vac 50 60 Hz Weight 150 lbs 68 kg Shipping weight 160bs 75 6 kg EL...

Page 4: ...fective Press the SELECT key to continue 4 After the LED test the electronic console displays the potentiometer increment number 5 Verify that the running bed inclines and declines as the INCLINE or I...

Page 5: ...chest strap transmitter or test transmitter Press the SELECT to select U F or P heart rate mode U is unfiltered mode F is filtered mode and P is Polar mode The unfiltered mode will display an unmodif...

Page 6: ...ed on the treadmill Press the STOP key to continue 4 The total number of hours the treadmill drive motor has been operating will be displayed Press the STOP key to continue 5 The software version will...

Page 7: ...standard the software compiles and records workout information in the units of the measurement standard selected Changing to the alternate measurement standard after your workout has started will cau...

Page 8: ...M 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 User and program number running when the pro...

Page 9: ...r running belt or drive belt slippage unusual noises smells or vibrations c Measure and log the AC input current under loaded and unloaded conditions 4 Press the INCLINE key while viewing the electron...

Page 10: ...lift motor tube See Diagram 4 1 Diagram 4 1 Lift Platform 3 Plug the AC line cord into an AC outlet and set the circuit breaker in the on position 4 Connect a digital multimeter set for DC volts betwe...

Page 11: ...w does not turn as you turn the lift tube If the drive screw turns the resistance reading in step 5 will change The ohmmeter must reads 98 after the lift tube has been threaded into position Re insert...

Page 12: ...t tube and the lift motor is 6 3 4 inches 1 8 inch See Diagram 4 2 Be sure that the lift motor drive screw does not turn as you turn the lift tube If the drive screw turns the potentiometer increment...

Page 13: ...nual part 20081 101 may be used to tension and track the 917 or 917si treadmill with a few exceptions 2 The drive roller on the 917 and 917si is a fixed mount The drive roller is not moveable or adjus...

Page 14: ...just far enough out of the right side of the running belt to expose the drive belt 3 Place a belt gauge Precor part 20030 117 or equivalent in the middle of the drive belt and in the center of the bel...

Page 15: ...drive belt tension bolt more than 16 pounds counterclockwise until the belt tensioning gauge reads 14 16 pounds 1 2 deflection 4 When the belt tension is correctly set tighten the jam nut to lock the...

Page 16: ...nts 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...

Page 17: ...PEED 0 Vdc and 500 mVdc 7 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 8 If the voltage readings in Table 5 1 are incorre...

Page 18: ...ing 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...

Page 19: ...Pin 9 of J3 SPEED 0 Vdc and 500 mVdc Pin 10 of J3 QUICK START 0 Vdc and 500 mVdc 7 If the voltage readings match those listed in Tables 5 1 and 5 2 and one or more keys do not function replace the up...

Page 20: ...tion does not correct the problem continue with step 4 4 Set the treadmill circuit breaker in the off position Using an ohmmeter measure between terminal 4 brown wire and terminal 6 orange wire of the...

Page 21: ...error occurs If line voltage is not present skip to step 11 If line voltage is measured but the motor does not move replace the lift motor 11 Monitor terminals 1 and 3 white and black wires of P7 Ent...

Page 22: ...Vdc as the target disk passes through the speed sensor Diagram 5 3 Speed Sensor 5 If the voltage in step 4 switches between approximately 0 Vdc and 5 Vdc the speed sensor is functioning correctly 6 If...

Page 23: ...ect either the speed sensor or the lower PCA could be defective Substitute a known good speed sensor and see if that corrects the problem If not substitute a known good lower PCA 8 If you have perform...

Page 24: ...it 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 importantl...

Page 25: ...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 mus...

Page 26: ...ler pulley Slide the running bed out of the running belt taking care not to scratch the treadmill frame with the belt trackers that are fastened to the bottom front of the running bed Diagram 6 1 Runn...

Page 27: ...belt tension gauges tension the running belt to 0 3 11 Snap the trim strips onto the side rails and slide them back under the end caps The Timmerman clips hood mounting clips must be fully visible wit...

Page 28: ...rconnect cable from the lower PCA Remove the six bolts that fasten the targa to the treadmill frame and remove the targa Care must be taken when removing the targa to ensure that the interconnect cabl...

Page 29: ...s removed in step 7 Center the running bed between the treadmill frame rails and securely tighten the running bed mounting screws 12 Replace the take up roller and end caps 13 Center the running belt...

Page 30: ...and side Protect the targa and plastic parts from scratching Remove the lower front cover 3 Remove the shield that covers the lower PCA 4 Carefully pry the left side cover off of the treadmill frame I...

Page 31: ...move the paper or similar material that is covering the drive motor holes 9 Feed the speed sensor wire harness to the lower PCA Cable tie the speed sensor wire harness to the lift motor cable Re conne...

Page 32: ...ocedure If the lift motor tube is allowed to rotate the lift motor must be re calibrated per Procedure 4 1 or 4 2 5 Unsnap the lift platform from the frame and the lift platform axle 6 Arrange the whe...

Page 33: ...5 917 Bottom View 4 Remove the lift connector J7 from the lower PCA Remove the cable ties securing the lift motor cable and feed the lift motor cable back toward the lift motor Remove the lift motor g...

Page 34: ...ift motor connector into the lower PCA Replace the cable ties removed in step 4 Reconnect the lift motor ground wire 9 Re install the lower PCA shield Reinstall the front lower cover 10 If the treadmi...

Page 35: ...the drive belt tension bolt counter clockwise until all tension is removed from the drive belt See Diagram 6 2 Remove the drive belt from the drive motor pulley 6 Remove the bolts that retain the driv...

Page 36: ...replace the three screws removed in step 11 14 Set the lower PCA in place on the mounting bracket and replace the three screws removed in step 10 15 Set the drive motor assembly in place in the tread...

Page 37: ...it 5 Observing the correct brush orientation insert the replacement brush If the brush is not correctly oriented the brush will have a very small contact surface with the motor commutator Re connect...

Page 38: ...917 917si Treadmillr Page 38 8 Replace both motor brush access covers 9 Re install the drive motor per Procedure 6 6 steps 11 17...

Page 39: ...e drive belt adjustment bolt counter clockwise until all tension is removed from the drive belt Remove both drive roller mounting bolts Slide the drive belt off of the drive roller and remove the driv...

Page 40: ...CC44 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...

Page 41: ...9 17 917si Treadmill Page 41 Wiring Diagram 7 1 917 and 917si 120 Vac...

Page 42: ...917 917si Treadmillr Page 42 Block Diagram 7 2 917 and 917si 120 Vac...

Page 43: ...9 17 917si Treadmill Page 43 Wiring Diagram 7 3 917 and 917si 240 Vac Line Cord Circuit Breaker Line Filter Stepdown Transformer BR BR BR BR BL BL BL BL...

Page 44: ...917 917si Treadmillr Page 44 Block Diagram 7 4 917 and 917si 240 Vac...

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Precor 9.17, Appendix

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