Star Trac TR 4500 manual Treadmill hesitates during initial speed start-up

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Speed Troubleshooting

** CAUTION ** Running belt will be moving at high speed during Step 1 & 3.

** CAUTION ** When checking motor brushes have the treadmill turned off and unplugged.

Note: Brushes should show a smooth pattern of wear, cracks or unusual wear will cause motor to jerk, replace if brushes if neded.

Symptom:

Treadmill jerks or hesitates during operation.

1. Verify the running belt / drive belt are not loose or slipping.

•Accelerate the running belt to 3.0 (5.0 kph). Stand on the side of the treadmill, while grasping the handrails firmly, place one foot on the running belt with a very sharp impact. Running belt should not stop, instead slip for a split second forcing your foot back. Drive belt should never stop rotating over the headroller during this procedure.

•If running belt or drive belt appears loose, see page 4.26 in this section.

2.Verify motor brushes are making contact and are seated correctly.

•Remove the motor brush cover, check brushes are seated correctly by removing the brush clip and verify contact. See diagram A for removal instructions.

•Cleaning the motor armature with a commutator stone is highly recom- mended to remove any possible carbon dust build up, causing the the brushes to skip over resulting in a brief motor hesitation.

3. Adjust the IRCOMP potentiometer, located on the MCB, see diagram B.

•Bring the treadmill to its minimum speed.

•Stand on the running belt, if the belt feels jerky / hesitates adjust the IRCOMP potentiometer until running belts feels smooth.

Symptom:

Treadmill hesitates during initial speed start-up.

1. Manually calibrate the minimum PWM as described in page 4.7 in this section.

4.15

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Contents Section Introduction How To Use This Manual Precautions Product Support Department Product Support AsistanceEquipment Function Tools and EquipmentTreadmill Overview DC Power SupplySection Preventive Maintenance Schedules Maintenance Clean Inspect Lubricate Replace Daily Preventive Maintenance ChartWeekly MonthlyTools Required Quarterly WaxingSection Diagnostics To engage Manager Mode Manager ModeLang Maintenance Mode Maintenance Mode 10 REV EL MAX = Unit was resetting Engage Test Mode Motor Test ModeAutomatic Speed Calibration CalibrationDisplay Test Mode Heart Rate Test Section Troubleshooting 110v MCB LED Layout 110v MCB LED Layout 220v MCB LED Layout 220v MCB LED Layout Diagram #1 Calibration TroubleshootingAuto-Calibration fluctuates Will not Calibrate to MAX speed Diagram #1 Diagram #2Manual Calibration 110v Unit No Display Power220v Unit Elevation Motor Elevation system shuts-off when used consistentlySymptoms Elevation Motor overheats and blows the MCB fuse Elevation Troubleshooting10 REV Speed TroubleshootingTreadmill will not reach maximum speed Treadmill hesitates during initial speed start-up Symptom Heart Rate TroubleshootingNo Heart Rate reading DiagramConnect Heart Rate Board straight to the display input Intermittent or erratic polar heart reading Polar Heart TroubleshootingIng these steps. Intermittent or no elevation Display CableIntermittent or no speed reading Drive Motor Tripping the ON/OFF switch breakerDrive Motor making noise Head / Tail Roller SymptomRunning belt slips when running or walking Drive Belt TroubleshootingWrench Running Belt TroubleshootingWill track to the side less tensioned Running Belt TrackingBelt is properly Tensioned Running Belt TensionRunning Deck Running deck squeaks when runningRunning Deck Isolating Noise Running belt travels to one side Treadmill vibrates LevelingUnit vibrates while running VibrationStatic Shock Slight shock from handrails or when using the display panelStar Trac Product Support Department at Display Codes ChartDefinition KEY Stuck Possible Cause Damaged or Code KEY DN FlowchartPage Definition RPM Loss Possible Cause Damaged or Code no RPM FlowchartStop Re-engage Auto Calibration See note Possible Cause RPM pick-up Code SP CNG FlowchartStop Diagram #2 Volt StopStop Diagram #5 Possible Cause Out of range Code EL Lost FlowchartCode EL RNG Flowchart Proceed to EL STL flowchart Definition Elevation Code EL STL FlowchartStop Section Parts Replacement Procedure Lift motor shroud Drive Motor ReplacementDisconnecting Motor Wiring ToolsRemove Motor Install Replacement Motor Check and Adjust Belt Tension Replace Shroud Reconnect Motor WiringTip the Treadmill on its side Elevation Motor ReplacementRemove the Elevation Motor Diagram a Replacement the Elevation Motor Set the Treadmill Upright Test Treadmill Operation Procedure Removing the Side Bed Cover Side Bed Cover ReplacementInstalling Replacement Side Bed Cover Diagram C Remove the Autotransformer Autotransformer ReplacementReplace the Autotransformer Replace the Shroud Autotransformer ReplacmentProcedure Remove the Display Panel Heart Grip ReplacementDiagram B Replace the Handgrips Remove the HandgripsReplace Display Panel Page Deck & Frame Assy Page Elevation Assy Page Motor & Electrical Assy Page Running Belt Assy Page Handrail Assy Page Handrail Assy Page Display Assy Page Display Assy

TR 4500 specifications

The Star Trac TR 4500 is a premium treadmill that has been designed to meet the demands of both commercial gyms and personal fitness enthusiasts. Boasting a range of innovative features and cutting-edge technologies, the TR 4500 stands out as an essential piece of equipment for any serious workout regimen.

One of the most notable features of the TR 4500 is its powerful 4.0 HP motor, which ensures smooth and consistent performance, even during intense workout sessions. Whether you are walking, jogging, or running, the treadmill provides a reliable experience that can handle a variety of user inputs. The motor also supports a speed range of up to 12 mph, allowing users to customize their workouts according to their fitness levels.

The TR 4500 is equipped with a spacious running surface, measuring 22 inches wide by 60 inches long. This ample space allows users to move freely and comfortably, whether they prefer a brisk walk or an all-out sprint. Additionally, the treadmill features a patented Soft Trac shock absorption system that minimizes the impact on joints, making it ideal for users of all ages and fitness backgrounds.

Users will appreciate the treadmill's advanced console, which includes a large, easy-to-read display that tracks essential workout metrics such as time, distance, speed, incline, and calories burned. The console is also equipped with multiple pre-set workout programs that cater to varying fitness goals, whether it's weight loss, endurance, or interval training.

Technologically, the TR 4500 shines with its integrated Heart Rate Control system, which allows users to monitor their heart rates in real-time via contact sensors or wireless chest straps. This feature ensures users can maintain optimal heart rate zones for maximum effectiveness during their workouts.

Moreover, users can enjoy entertainment while they exercise, as the treadmill is designed to be compatible with various audio devices. This includes built-in speakers and a media tray for tablets and phones, enabling users to watch their favorite shows or listen to music as they run.

Durability is another hallmark of the TR 4500, with its commercial-grade construction that promises longevity, even in high-traffic environments. Whether for home use or in a gym, the Star Trac TR 4500 treadmill combines powerful performance, user-friendly features, and superior build quality, making it a top choice for serious athletes and fitness enthusiasts alike.
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