® ® Bowflex® Series 3, 5 & 7 Treadmill Service Manual Nautilus® 001-7100-082510C Bowflex® Schwinn® Fitness Universal®
Important -- Please Read If you are a consumer and require technical support to resolve a problem with your Bowflex® 3, 5 or 7 Series Treadmill, please call Nautilus Customer Service at 800-605-3369 (USA) or +01-360-859-5180 (International). Voltages inside the Bowflex ® 3, 5 or 7 Series Treadmill are dangerous. Servicing by people other than Authorized Nautilus® Service personnel may result in electrical shock or other injury.
Important Safety Instructions This icon means a potentially hazardous situation which, if not avoided, could result in death or serious injury. Obey the following warnings: R ead and understand the Service Manual before working on the machine. Failure to obey the instructions and safety warnings could cause injury to the service technician or bystanders. • Keep children away from the product being serviced at all times..
Important Safety Instructions Safety Warning Labels and Serial Number Serial Number location Label 1 Serial Number Label 2 Motor Cover Label 1: " Failure to follow these safeguards may result in serious injury or health problems. 1. Remove control key when not in use and store out of reach of children. 2. If you feel any unusual pain or tightness in your chest, shortness of breath, or dizziness, feel faint or have any discomfort while you exercise, STOP! 1.
Important Safety Instructions Emergency Stop Procedures Your treadmill comes equipped with a SAFETY KEY that can protect you from serious injury. The safety key uses a magnetic key to hold it in the proper position. Insert the safety key fully into the safety keyhole. Always clip the Safety Key Clip to your clothing during your workout. Unless there is an emergency, do not remove the safety key when standing on the walking belt while in motion.
Important Safety Instructions Folding, Transporting & Unfolding the Treadmill This treadmill comes with a folding mechanism. You must stop operation before folding and transporting the machine. Make sure the power is off and the power cord is removed and unplugged before folding and transporting the treadmill. Folding the treadmill: 1. Stop the treadmill belt. 2. Bring Elevation to zero. 3. Turn off power. 4. Squeeze the release mechanism, then lift the deck to fold up the treadmill.
Specifications The dimensions and general specifications for the Bowflex® 3, 5, or 7 Series Treadmill include: Product Weight Series 3 Series 5 Series 7 298 lbs. / 135 kg 298 lbs. / 135 kg 298 lbs. / 135 kg Maximum User Weight Series 3 Series 5 Series 7 275 lbs. / 125 kg. 275 lbs. / 125 kg. 300 lbs. / 136 kg. Motor Size Series 3 Series 5 Series 7 1.75 Horsepower 2.5 Horsepower 3.0 Horsepower Speed Series 3 Series 5 Series 7 .5 - 10 mph .5 - 10 mph .
Electrical Layout 1. 2. 3. 4. 5. 6. 7. 8. Top Black cable (speed sensor) Middle Red wire (up elevation) Middle Black wire (down elevation) Middle White wire (elevation Com) Blue wire (N/L2) Brown Wire (AC/L1) Bottom Left Black wire (A2 Motor) Bottom Right Red wire (A1 Motor) Lights next to Middle Red wire 1. Left (elevation up) 2. Right (elevation down) Fuses 1. Middle Left ( 0.5 amp main board) 2. Middle Right ( 1. 5 amp AC – incline) 3. Gray Fuse under Blue and Brown wire (15 amp DC power) Lights 1.
Common Service Procedures Calibration Calibrate the Treadmill after replacing a component, like a belt or motor, and after a power outage. Calibrating the Treadmill is an important part of troubleshooting and maintenance. Do not stand on the walking belt during the entire calibration process. Stand on the side foot support platforms or rubber mat only. 1. Plug power cord into wall outlet and turn on power switch. 2. Stand on the side foot support platforms or rubber floor mat.
Common Service Procedures Walking Belt Tension The walking belt tends to stretch slightly with use, thus it may need to be tightened. If the walking belt is too loose, the belt may stop during operation (running or walking). DO NOT OVERTIGHTEN BELT. Too much tension on the belt causes unnecessary friction and wears the belt, motor, rollers and electronics. To make sure the belt tension is correct, put three fingers under the edge of the stationary walking belt.
Troubleshooting Procedures General Power Source and Electrical Plug Set Up Plug the treadmill into its dedicated outlet. If possible, use a surge protector. Treadmill does not operate correctly on a GFI basement or garage outlet. No Power to the Unit 1. Check power to the outlet. 2. Check plug at unit and AC inlet receptacle for damage 3. Check circuit breaker (red pin by on/off switch). If it is tripped, it will be popped out and you will need to click it back in. If it is not tripped, it will not move.
Troubleshooting Procedures Console Error Codes ENGINEERING MODE 1. “rdir”: This error code means elevation direction is reversed. Refer to elevation problems section. 2. “Rg_S”: This error means the target speed cannot be maintained. Refer to Speed Errors section. 3. “St_E”: This error code means an elevation stall happpened (elevation is commanded to move but nothing happens). Refer to Elevation Problems section. 4.
Troubleshooting Procedures 3. Press the enter key once. After a slight delay, a beep sounds and “CAL” appears in the upper right window. 4. Press the start key. The system enters the auto calibration mode. 5. Press the start/stop key to pause auto calibration. 6. Press the enter key to manually toggle through the calibration points while and save your current values. Press the scan keys to toggle through without saving. The order is: MIN PWM, ½ PWM, MAX PWM, ELEVATION UPPER LIMIT, ELEVATION LOWER LIMIT.
Troubleshooting Procedures Elevation Problems If you have elevation problems, follow these steps to diagnose and repair the problem(s): 1. Calibrate the unit. Calibration will correct the problem or diagnose the cause. While the unit is in calibration, the potentiometer reading should decrease when going up and increase while going down. The elevation numbers increase as the platform rises and decreases as it goes down. 2. If the problem continues, do the following: a.
Replacing Parts Walking Belt Replacement Troubleshooting Symptom: Cracked rubber on walking belt. User feels static electricity or small shocks while running or walking. Disconnect all power and allow to sit for 5 min. before you service this machine Note: Set the hardware safely aside as you disassemble components. Identify the correct size hardware for each step to assemble the machine again. 1. Remove the motor cover (Figure 1). Figure 1 2. Remove the plastic side step cover (Figure 2).
Replacing Parts Walking Belt Replacement (cont.) Motor Tension Bolt 3. Loosen the motor mounts. Release motor belt tension by loosening the motor tension bolt. (See Figure 3.) Motor Mounts Figure 3 4. Remove motor drive belt from the motor pulley (Figure 4). Slowly turn the motor pulley to help “walk” the belt off the pulley.
Replacing Parts Walking Belt Replacement (cont.) 5. Remove the rear roller adjustment screws (Figure 5). You must loosen the screws equally to prevent binding. 6. Remove rear roller. Figure 5 7. Remove front roller bolts from the front roller axle (Figure 6). 8. Remove front roller. 9. Lift deck into storage position. Refer to the “Folding the Treadmill” section in this manual.
Replacing Parts Walking Belt Replacement (cont.) 10. Remove rear wheels from their brackets. 11. Carefully peel back the side decal and remove hardware as shown (Figure 7). Remove the plastic bottom cover. Figure 7 12. Remove 4 nuts from below the deck (Figure 8). 13. Unfold the deck. Refer to the “Unfolding the Treadmill” section in this manual. 14. Remove the 8 hex screws on the top surface of the deck.
Replacing Parts Walking Belt Replacement (cont.) 15. Carefully remove the 4 plastic spacers between the deck and frame mounts (Figure 9). Set aside for reinstallation. Figure 9 16. Lift and tilt the deck with belt from the frame, and remove the old belt. (See Figure 10.) 17. Clean deck with damp rag. Clean and remove any debris from below the deck.
Replacing Parts Walking Belt Replacement (cont.) 18. Reverse the operation to install the replacement belt and assemble the treadmill. Note: When you install the roller bolts into the front and rear roller axles (see Steps 7 and 5), it may be easier if you use a tool to align the bolt holes on one side (Figure 11) while you install the other side.
Replacing Parts Replacing the Upper Console Please refer to the Assembly Manual.
Nautilus® Bowflex® Schwinn® Fitness Universal®
