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Issue date Edition Doc No. SM-TM-TEM-001 JOHNSON Revision Edition time Page date Johnson Industries (Shanghai) Co.,Ltd Document: 612T&622T Service Manual Approval Review Editor Eric Kali/Lucy...
CHAPTER 2: PREVENTATIVE MAINTENANCE 2.1 Preventative Maintenance............................2.2 Tension and Centering the Running Belt......................CHAPTER 3: CONSOLE INSTRUCTION 3.1 Console Overview...............................11 3.1.1 612T Overview................................. 11 3.1.2 622T Overview................................. 12 3.2 Display Window Indication............................13 3.3 Getting Started & Selecting a Workout........................3.4 Program Information..............................
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CHAPTER 6: PART REPLACEMENT GUIDE Motor Cover Replacement.............................30 Rear Roller Replacement............................31 Side Rail Replacement............................Running Deck Replacement..........................33 Front Roller Replacement............................Running Belt Replacement............................ Motor Control Board (MCB) Replacement......................Motor Replacement..............................Drive Belt Replacement............................38 6.10 Console Replacement............................6.11 Incline Motor Replacement (Only For 622T)....................6.12 Heart Rate Board Replacement (Only For 622T)...................41...
CHAPTER 2: Preventative Maintenance 2.1 PREVENTATIVE MAINTENANCE Preventative maintenance is the key to smoothly operating equipment, as well as keeping the user’s liability to a minimum. Equipment needs to be inspected at regular intervals. Defective components must be replaced immediately. Improperly working equipment must be kept out of use until it is repaired.
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CHAPTER 2: Preventative Maintenance 2.1 PREVENTATIVE MAINTENANCE-CONTINUED EVERY 6 MONTHS OR 150 MILES It is necessary to lubricate your treadmill running deck every six months or 150 miles (240 kilometers) to maintain optimal performance. Once the treadmill reaches 150 miles (240 kilometers), the console will display the message “LUBE”...
CHAPTER 2: Preventative Maintenance 2.2 TENSIONING & CENTERING THE RUNNING BELT If you can feel a slipping sensation when running on the treadmill, the running belt must be tightened. In most cases, the belt has stretched from use, causing the belt to slip. This is a normal and common adjustment. To eliminate this slipping, turn the treadmill off and tension both the rear roller bolts using the supplied Allen wrench, turning them ¼...
CHAPTER 3: Console Instruction 3.1 CONSOLE OVERVIEW 3.1.1 612T Console Overview Note: There is a thin protective sheet of clear plastic on the overlay of the console that should be removed before use. A) MONITOR DISPLAY: Speed, Time, Heart Rate, Distance, and Calories.
CHAPTER 3: Console Instruction 3.1.2 622T Console Overview Note: There is a thin protective sheet of clear plastic on the overlay of the console that should be removed before use. A) MONITOR DISPLAY: Speed, Time, Heart Rate, Distance, Incline, and Calories. B) STOP: Press to end your workout.
Once you have started your program you can quickly change your speed or incline level. 612T: To change your speed, press one of the four quick speed keys: easy (5 km/h), moderate (8 km/h), hard (12 km/h) or sprint (16 km/h). The treadmill will adjust accordingly.
CHAPTER 3: Console Instruction 3.3 GETTING STARTED & SELECTING A WORKOUT 3.3.1 612T GETTING STARTED 1) Check to make sure no objects are placed on the belt that will hinder the movement of the treadmill. 2) Plug in the power cord and turn the treadmill ON.
CHAPTER 5: Troubleshooting 5.3 TROUBLESHOOTING – NO POWER TO THE CONSOLE POWER THE CONSOLE 1) SYMPTOM: A. Turn on the power switch, but the console will not light up. 2) SOLUTION: Please note the MCB in this model does NOT have an LED indicating the power is on. This means voltage ...
CHAPTER 5: Troubleshooting 5.4 TROUBLESHOOTING – NO FUNCTION FOR SAFETY KEY NO FUNCTION FOR SAFETY KEY SYMPTOM: a. The safety key inserted in console, but display window still shows “safety key off”. SOLUTION: a. Check if the safety key totally inserted in the console. - If no, take off and insert again.
CHAPTER 5: Troubleshooting 5.5 TROUBLESHOOTING – NO RESPONSE FOR MACHINE (CONSOLE&MOTOR) THE POWER IS ON, BUT MACHINE RESPONSE SYMPTOM: a. The power is on and the console lights up, but the treadmill does not run when keys are pressed. SOLUTION: a.
CHAPTER 5: Troubleshooting 5.6 TROUBLESHOOTING - INCLINE MOTOR ISSUES INCLINE MOTOR ISSUES SYMPTOM: a. The incline motor does not lift up or down. SOLUTION: a. Enter Engineering Mode, and scroll to ENG 1 (Hardware Test). Press the key “ENTER” first and then the key ”START”.
CHAPTER 5: Troubleshooting 5.7 TROUBLESHOOTING - NOISE ISSUES NOISE ISSUES SYMPTOM: a. Thumping noise twice per rotation on new machine. b. Rubbing / grinding noise. c. High pitched “bell-like” sound from under the motor cover. d. Banging or clunking sound. e.
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CHAPTER 5: Troubleshooting 5.7 TROUBLESHOOTING - NOISE ISSUES-CONTINUED - Check that the running deck is tightly attached to the frame. - Check the deck shocks for detioration or crumbling. Replace if needed. - Check to see if the air shock is making this noise, lubricate or replace if needed. f.
CHAPTER 5: Troubleshooting 5.8 TROUBLESHOOTING - SPEAKER / AUDIO ISSUES Speaker / Audio Issues SYMPTOM: a. No sound through the speakers but headphones work. b. No sound through headphones but the speakers work. c. No sound through speakers or headphones. d.
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CHAPTER 5: Troubleshooting 5.8 TROUBLESHOOTING - SPEAKER / AUDIO ISSUES-CONTINUED - Replace the speaker wiring. - Replace the speakers. e. The speaker or speaker wiring is bad. - Check the speaker wire connections. - Switch the speaker connections from one speaker to the other to see if sound switches sides. - If the sound does not switch sides, replace the speaker board.
CHAPTER 5: Troubleshooting 5.9 TROUBLESHOOTING- HEART RATE FUNCTION ISSUE Heart rate function does not work or is reading incorrectly 1) SYMPTOM: a. The chest strap being used is not making good contact with the user's chest. b. The chest strap is at a low battery status. c.
CHAPTER 6: Part Replacement Guide MOTOR COVER REPLACEMENT 1) Remove the 2 screws holding the motor cover to the frame (Figures A&B). 2) The cover is secured to the frame with velcro, so you will have to pull up with some force FIGURE A FIGURE B 3) Figure C shows the motor area with the motor cover removed.
CHAPTER 6: Part Replacement Guide REAR ROLLER REPLACEMENT 1) Remove the rear end caps (Figure A). 2) Remove both roller adjustment screws (Figure B). FIGURE A FIGURE B 3) Remove the roller (Figure C) FIGURE C...
CHAPTER 6: Part Replacement Guide SIDE RAIL REPLACEMENT 1) Remove the rear end cap (Figure A). 2) Slide the rail off the back of the treadmill (Figures B). FIGURE A FIGURE B 4) Reverse Steps 1-2 to install a new side rail. NOTE: After reinstalling the side rail, make sure the rear end cap is on first before tightening the screws for proper gap spacing.
CHAPTER 6: Part Replacement Guide RUNNING DECK REPLACEMENT 1) Remove the motor cover as outlined in Section 6.1. 2) Remove the side rail as outlined in Section 6.3. 3) Remove the end cap 4) Remove the running deck screws (Figure A). FIGURE A FIGURE B 5) Remove the running deck from the running belt (Figure B)
CHAPTER 6: Part Replacement Guide FRONT ROLLER REPLACEMENT 1) Remove the motor cover as outlined in Section 6.1. 2) Loosen both of the rear roller screws to remove tension from the running belt (Figure A). FIGURE A FIGURE B 4) Remove the spring from the drive belt tensioner. The tensioner should now pivot away from the drive belt (Figure B). 5) Remove the drive belt from the front roller and remove the roller from the running belt.
CHAPTER 6: Part Replacement Guide RUNNING BELT REPLACEMENT 1) Remove the motor cover as outlined in Section 6.1. 2) Remove the rear roller as outlined in Section 6.2. 3) Remove the running deck as outlined in Section 6.4. 4) Remove the front roller as outlined in Section 6.5. 5) Remove the running belt (Figures A).
CHAPTER 6: Part Replacement Guide MOTOR CONTROL BOARD (MCB) REPLACEMENT 1) Turn off power and disconnect the cord from the machine. 2) Remove the motor cover as outlined in Section 6.1. 3) Disconnect the wire connectors at the MCB. 4) Remove the 2 screws holding each side of the MCB to the frame (Figures A). FIGURE A FIGURE B 5) Remove the MCB (Figure B)
CHAPTER 6: Part Replacement Guide MOTOR REPLACEMENT 1) Turn off power to the treadmill and disconnect the power cord. 2) Remove the motor cover as outlined in Section 6.1. 3) Use a hook or loop of wire to remove the spring from the drive belt tensioner. 4) Remove the drive belt tensioner 6) Disconnect the motor cable ground wire from the grounding post.
CHAPTER 6: Part Replacement Guide DRIVE BELT REPLACEMENT 1) Turn off power to the treadmill and disconnect the power cord. 2) Remove the motor cover as outlined in Section 6.1. 3) Use a hook or loop of wire to remove the spring from the drive belt tensioner (Figure A). FIGURE A 4) The tensioner should now pivot away from the drive belt 5) With the tension on the drive belt relieved it can be walked off of the motor pulley...
CHAPTER 6: Part Replacement Guide 6.10 CONSOLE REPLACEMENT 1) Turn off power to the treadmill and disconnect the power cord. 2) Remove the 4 screws holding the console from the console mast (Figure A). FIGURE A FIGURE B 3) Remove the 5 screws holding the back of console (Figure B). 4) Disconnect the wires connections from the console .
CHAPTER 6: Part Replacement Guide 6.11 INCLINE MOTOR REPLACEMENT (ONLY FOR 622T) 1) Turn off power to the treadmill and disconnect the power cord. 2) Remove the motor cover as outlined in Section 6.1. 3) Lift the treadmill and support it so that the front wheels are off the floor, or the unit may be tipped on its side. 4) Remove the screws from the elevation rack (Figure A).
CHAPTER 6: Part Replacement Guide 6.12 HEART RATE BOARD REPLACEMENT (ONLY FOR 622T) 1) Turn off power to the treadmill and remove the power cord. 2) Remove the console as outlined in Section 6.12. 3) Loose the screws which fix the heart rate sensor (Figure A). FIGURE A FIGURE B 4) Disconnect the wires connections that go to the heart rate board (Figure B).
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