Star Trac E Series Treadmill E-TRxi User manual

Last updated 03/06/2017 637-4504 Rev. B

Treadmill Technical Manual

Last updated 03/06/2017 637-4504 Rev. B

Safety Information

Tools

Product Details

 E-TRx

 E-TR

 S-TRc

 S-TRx

Power Requirements

Product Placement

Preventative Maintenance

Systems

 Power

 Display

 Drive

 Belt & Deck

 Elevation

Maintenance Mode

Part Replacement Procedures

 Running Belt

 Deck / Deck Cushions

 Rollers

 EMI Filter

 Motor Control Board

 Drive Motor

 Elevation Motor

 Console

o LED

o LED Keypad / Display Electronics

o Embedded

o CCB

Troubleshooting

Last updated 03/06/2017 637-4504 Rev. B

Safety Information

The following pages are intended to educate service technicians on the basic maintenance and

service actions for the StarTrac treadmill. By following the enclosed instructions and

maintenance schedule, you will extend the life of your equipment and help ensure it will withstand

hours of use in your home/facility.

Before working on this equipment, pay attention to the following warnings:

 Read and understand the complete Owner's Manual.

 Keep Owner's Manual for future reference.

 Read and understand all warnings on this machine. If at any time the Warning stickers become loose,

unreadable or dislodged, contact Customer Service for replacement stickers.

 Keep children away from this machine. Monitor them closely when near the machine. Parts that move and

appear dangerous to adults can appear safe to children.

 Consult a physician before you start an exercise program. Stop exercising if you feel pain or tightness in your

chest, become short of breath, or feel faint. Contact your doctor before you use the machine again. Use the

values calculated or measured by the machine's computer for reference purposes only.

 Before each use, examine this machine for loose parts or signs of wear. Do not use if found in this condition.

Pay special attention to the steps. Contact Customer Service for repair information.

 Maximum user weight limit: 500lbs. (227kgs). Do not use if you are over this weight.

 Do not wear loose clothing or jewelry. This machine contains moving parts.

 Set up and operate this machine on a solid, level, horizontal surface.

 Do not step off the machine until the belt has fully stopped.

 Do not operate this machine outdoors or in moist or wet locations.

 Keep at least 20” on each side and 48” from the back of the machine clear for easy egress/ingress. This is the

recommended safe distance for access and passage around and emergency dismounts from the machine.

Keep third parties out of this space when machine is in use.

 Do not over exert yourself during exercise. Operate the machine in the manner described in this manual.

 When the machine is put in a studio or club environment, it can only be used in areas where access and

control of the machine is managed by approved staff. The degree of management depends on the user's

ability to recognize and prevent danger to third parties during the exercise movement.

To decrease risk of burns, fire, electric shock, or injury to persons:

 An appliance must not be left unattended when plugged in. Unplug from outlet when not in operation and

before you put on or remove parts.

 Close supervision is necessary when this appliance is used by or near children or disabled persons.

 Use this appliance only for its intended use as described in this manual. Do not use attachments that are

not recommended by the manufacturer.

 Do not operate this appliance if it has a damaged cord or plug, if it is not working correctly, if it has been

dropped or damaged, or fallen into water. Return the appliance to a service center for examination and

repair.

 Keep the cord away from heated surfaces.

 Do not drop or put any object into any opening.

 Do not use outdoors.

 To disconnect, turn all controls to the off position, then remove plug from outlet.

Last updated 03/06/2017 637-4504 Rev. B

Tools

Qty.

Name

Model

Manufacturer

Specifications

1

Multi-meter

Various

Digital, Continuity

1

Socket Set, SAE

Various

1/4" - 5/8"

1

socket Set, Metric

Various

4mm - 21mm

1

Socket driver

Various

1

Open end wrenches, SAE

Various

1/4" - 3/4"

1

Open end wrenches, Metric

Various

4mm - 17mm

1

Hex Bit Socket Set, SAE

Various

5/64 - 3/8

1

Hex Bit Socket Set, Metric

Various

4mm - 14mm

1

Torque Wrench

Various

1

Torque Wrench

Various

1+

Screwdriver Set, Phillips

Various

1+

Screwdriver Set, Flat

Various

1

Tape Measure

Various

1

Cold Chisel Set

Various

1

Ball Pin Hammer

Various

10 oz

1

Bearing Puller

Various

3-arm

1+

Rubber Mallet

Various

1

iPod

Apple

Video

1

TV Channel Modulator

Various

Ch.3/4 Output

1

Headphone

Standard

Various

Standard 3.5mm

1

Apple Composite AV Cable

Apple

1+

Compression F Connector

Wrench

LCCT-

SS59/11

DIGICON

25+

Compression F Connectors

DIGICON

DS6

DIGICON

1+

Cable Stripper

VH596

RCA

1+

Cable Torque Wrench

TW207-AH

Ripley

2

Coax Seal

#104

Coax-Seal

2

FISP - JTAG Programmer

JTAG

4D Electronics Ltd.

www.4d-

electronics.co.nz

1

USB - Flash Drive

Various

1 GB

1+

Stretch-wrap Cutter

400021

Highlight

1+

Furniture Dolly

Various

Rubber top

4

Motorcycle straps, adjustable

Various

1+

15 amp to 20 amp plug, adapter

Various

1

Loctite 680

Various

50

zip ties

4”

50

zip ties

8”

Last updated 03/06/2017 637-4504 Rev. B

E-TRx

 15” embedded HD touch screen aligns

user’s workout with their entry goals and

expectations with sophisticated and

intuitive programs and features

 Integrated iPod® connectivity with music

and video allows users to display personal

content

 Easily accessible Hot Bar® is located

closer to the user with one-finger speed

and elevation controls, integrated stop

button and contact heart rate grips

 Star Trac Coach™ Over 1 million possible

workouts ensure a different workout every

time taking the ordinary treadmill

experience to a new level of engagement

never seen before

 Soft Trac® triple cell cushioning system

provides maximum shock absorption

 Centered dual-adjustable personal fans

create a more rewarding workout

 20% max incline

 User weight capacity 500 lbs. (227 kg)

Overall Weight

Running Surface

Width

Length

Height

477 lbs 216.4 kg)

60˝ x 21.5˝ (152 x 55 cm)

36˝ (91 cm)

85˝ (215 cm)

63˝ (160 cm)

Features and Specifications:

STEP-UP HEIGHT: 10” (25.5 cm)

FRAME: Custom aluminum uniframe

MOTOR DRIVE: 5 HP AC

ELECTRICAL: 110 volt, dedicated NEMA 5-20 cord; 220

volt, dedicated NEMA 6-15 cord (optional)*

CERTIFICATION: UL/CSA, CE, FCC, or CISPR

SUSPENSION: Soft Trac® triple cell neoprene rubber,

Deck System: Reversible 1” (2.5 cm) composite

fiberboard, waxing not required

ROLLERS: 3.5” (9 cm) sealed bearings

COLORS: Frame: Star Trac Silver, Shrouds: Slate Gray,

Accents: Black

INCLINE RANGE: 0 to 20% in 0.5% increments

SPEED RANGE: 0.5 to 15mph** (0.8 to 24 km/h**) in 0.1

mph (0.1 km/h) increments

HR MONITORING: Polar® Telemetry and Contact Heart

Rate System

DISPLAY: 15” embedded touch screen with high

definition TV and four workout views, including Progress

View, Track View, Heart Rate View, and Simple View

READOUTS: Dedicated: Speed and incline, time

elapsed, calories, calories/hour, pace (min/mile or km),

distance, course profile, heart rate, heart rate tracking,

1/4-mile motivational track, laps completed

PROGRAMS: 18 workouts including Dynamic Heart Rate

Control®, Constant Heart Control, Fitness Test (Modified

Balke Ware), Firefighter Test (Modified Gerkin Protocol),

ARMY Protocol, USMC Protocol, USAF Protocol, NAVY

Protocol, three custom workouts and Star Trac Coach™.

STANDARD FEATURES: Standard Features: Hot Bar

controls, personal entertainment system, personal

cooling fans, wrap-around Aero Bar, dedicated heart rate

display, safety lockout control, FitLinxx® certified

ENTERTAINMENT: E Series touch screen entertainment

system which includes 15” high definition LCD with touch

screen technology, NTSC/ATSC/QAM digital tuner or

PAL/SECAM tuner, integrated iPod® connector, USB

power port, coaxial cable connector at base

WARRANTY: Motor & MCB–5-year parts and labor;

Other parts–2-year parts, 1-year labor; Wear items–1-

year parts and labor; Headphone jack, iPod connector,

and USB port – 90 day parts, no labor (USA and Canada

only)** (Light Commercial warranty for all non-dues

paying facilities 3 years parts/labor)

Last updated 03/06/2017 637-4504 Rev. B

E-TR

 Pre-wired for E Series PVS entertainment

system

 User-friendly console and keypad feature

a large service scrolling message window,

user-specific workout programs, a

dedicated heart rate display, Polar®

telemetry and multiple cup and accessory

holder

 Soft Trac® triple cell cushioning system

provides maximum shock absorption

 5 HP AC Motor

 Centered dual-adjustable personal fans

create a more rewarding workout

 21.5” (54.6 cm) belt

 9” (22.86 cm) step-up height

 User weight capacity 500 lbs. (227 kg)

Overall Weight

Running Surface

Width

Length

Height

575.5 lbs (261.04 kg)

60˝ x 21.5˝ (152 x 54.6 cm)

32˝ (81.3 cm)

81˝ (206 cm)

59.77˝ (151.81 cm)

Features and Specifications:

STEP-UP HEIGHT: 9” (22.86 cm)

FRAME: Custom powder-coated steel uniframe

MOTOR DRIVE: 5 HP AC

ELECTRICAL: 110 volt, dedicated NEMA 5-20 cord; 220

volt, dedicated NEMA 6-15 cord (optional)

CERTIFICATION: UL/CSA, CE, FCC, or CISPR

SUSPENSION: Soft Trac® triple cell neoprene rubber,

Deck System: Reversible 1” (2.5 cm) composite

fiberboard, waxing not required

ROLLERS: 3” (7.6 cm) sealed bearings

COLORS: Frame: Star Trac Silver, Shrouds: Slate Gray,

Accents: Black

INCLINE RANGE: 0 to 15% in 0.5% increments

SPEED RANGE: 0.5 to 12.5mph (0.8 to 20 km/h) in 0.1

mph (0.1 km/h) increments

HR MONITORING: Polar® Telemetry and Contact Heart

Rate System

STEP-UP HEIGHT: 9” (22.86 cm)

FRAME: Custom powder-coated steel uniframe

MOTOR DRIVE: 5 HP AC

ELECTRICAL: 110 volt, dedicated NEMA 5-20 cord; 220

volt, dedicated NEMA

6-15 cord (optional)

CERTIFICATION: UL/CSA, CE, FCC, or CISPR

SUSPENSION: Soft Trac® triple cell neoprene rubber,

Deck System:

Reversible 1” (2.5 cm) composite fiberboard, waxing not

required

ROLLERS: 3” (7.6 cm) sealed bearings

COLORS: Frame: Star Trac Silver, Shrouds: Slate Gray,

Accents: Black

INCLINE RANGE: 0 to 15% in 0.5% increments

SPEED RANGE: 0.5 to 12.5mph (0.8 to 20 km/h) in 0.1

mph (0.1 km/h) increments

HR MONITORING: Polar® Telemetry and Contact Heart

Rate System

Last updated 03/06/2017 637-4504 Rev. B

S-TRc

 Pre-wired for E Series PVS entertainment

system

 User-friendly console and keypad feature

a large service scrolling message window,

user-specific workout programs, a

dedicated heart rate display, Polar®

telemetry and multiple cup and accessory

holder

 Soft Trac® triple cell cushioning system

provides maximum shock absorption

 5 HP AC Motor

 Centered dual-adjustable personal fans

create a more rewarding workout

 20” belt

 7” step-up height

 User weight capacity 500 lbs. (227 kg)

Overall Weight

Running Surface

Width

Length

Height

533 lbs (241.7 kg)

60˝ x 20˝ (152 x 51 cm)

32˝ (81.3 cm)

81˝ (206 cm)

58˝ (147.3 cm)

Features and Specifications:

STEP-UP HEIGHT: 7” (17.8 cm)

FRAME: Custom powder-coated steel uniframe

MOTOR DRIVE: 5 HP AC

ELECTRICAL: 110 volt, dedicated NEMA 5-20 cord; 220

volt, dedicated NEMA 6-15 cord (optional)

CERTIFICATION: UL/CSA, CE, FCC, or CISPR

SUSPENSION: Soft Trac® triple cell neoprene rubber,

Deck System: Reversible 1” (2.5 cm) composite

fiberboard, waxing not required

ROLLERS: 3” (7.6 cm) sealed bearings

COLORS: Frame: Star Trac Silver, Shrouds: Slate Gray,

Accents: Black

INCLINE RANGE: 0 to 15% in 0.5% increments

SPEED RANGE: 0.5 to 12.5mph (0.8 to 20 km/h) in 0.1

mph (0.1 km/h) increments

HR MONITORING: Polar® Telemetry and Contact Heart

Rate System

DISPLAY: Intuitive, tactile response keypad with LED

technology

READOUTS: Large 8-character message window;

Dedicated: Time, distance, incline, speed, heart rate, 1/4-

mile motivational track, profile; Scrolling: calories,

METs, course profile

PROGRAMS: 12 programs including Dynamic Heart

Rate Control®, Constant Heart Rate Control, Quick Start,

Burn Calories, Manual, Increase Endurance, Fitness

Test (Modified Balke Ware), Firefighter Test (Modified

Gerkin Protocol)

STANDARD FEATURES: Personal cooling fans,

wraparound Aero Bar, dedicated heart rate display,

Entertainment Solutions Ready, Safety Lanyard

ENTERTAINMENT: Pre-wired for S Series PVS

entertainment system

WARRANTY: Commercial warranty: 2-year parts

warranty, 1-year labor warranty, 5-year parts and labor

warranty on the motor and motor control board; Light

commercial setting: 3-year warranty on parts and labor,

5-year parts and labor warranty on the motor and motor

control board (USA and Canada only)** (Light

Commercial warranty for all non-dues paying facilities 3

years parts/labor).

Last updated 03/06/2017 637-4504 Rev. B

S-TRx

 Pre-wired for E Series PVS entertainment

system

 User-friendly console and keypad feature

a large service scrolling message window,

user-specific workout programs, a

dedicated heart rate display, Polar®

telemetry and multiple cup and accessory

holder

 Soft Trac® triple cell cushioning system

provides maximum shock absorption

 3 HP DC Motor

 Centered dual-adjustable personal fans

create a more rewarding workout

 20” belt

 7” step-up height

 User weight capacity 500 lbs. (227 kg)

Overall Weight

Running Surface

Width

Length

Height

514 lbs (233.2 kg)

60˝ x 20˝ (152 x 51 cm)

32˝ (81.3 cm)

81˝ (206 cm)

58˝ (147.3 cm)

Features and Specifications:

STEP-UP HEIGHT: 7” (17.8 cm)

FRAME: Custom powder-coated steel uniframe

MOTOR DRIVE: 3 HP DC

ELECTRICAL: 110 volt, dedicated NEMA 5-20 cord; 220

volt, dedicated NEMA 6-15 cord (optional)

CERTIFICATION: UL/CSA, CE, FCC, or CISPR

SUSPENSION: Soft Trac® triple cell neoprene rubber,

Deck System: Reversible 1” (2.5 cm) composite

fiberboard, waxing not required

ROLLERS: 3” (7.6 cm) sealed bearings

COLORS: Frame: Star Trac Silver, Shrouds: Slate Gray,

Accents: Black

INCLINE RANGE: 0 to 15% in 0.5% increments

SPEED RANGE: 0.5 to 12.5mph (0.8 to 20 km/h) in 0.1

mph (0.1 km/h) increments

HR MONITORING: Polar® Telemetry and Contact Heart

Rate System

DISPLAY: Intuitive, tactile response keypad with LED

technology

READOUTS: Large 8-character message window;

Dedicated: Time, distance, incline, speed, heart rate, 1/4-

mile motivational track, profile; Scrolling: calories,

METs, course profile

PROGRAMS: 12 programs including Dynamic Heart

Rate Control®, Constant Heart Rate Control, Quick Start,

Burn Calories, Manual, Increase Endurance, Fitness

Test (Modified Balke Ware), Firefighter Test (Modified

Gerkin Protocol)

STANDARD FEATURES: Personal cooling fans,

wraparound Aero Bar, dedicated heart rate display,

Entertainment Solutions Ready, Safety Lanyard

ENTERTAINMENT: Pre-wired for S Series PVS

entertainment system

WARRANTY: Commercial warranty: 2-year parts

warranty, 1-year labor warranty, 5-year parts and labor

warranty on the motor and motor control board; Light

commercial setting: 3-year warranty on parts and labor,

5-year parts and labor warranty on the motor and motor

control board (USA and Canada only)** (Light

Commercial warranty for all non-dues paying facilities 3

years parts/labor).

Last updated 03/06/2017 637-4504 Rev. B

Power Requirements

Treadmill Dedicated Circuit Requirement:

Star Trac requires a 20 amp dedicated circuit and dedicated neutral for each treadmill installed

and operated. Each treadmill requires an outlet of which line and neutral contacts are wired to

the electrical power distribution box (circuit breaker box) with dedicated wires. Both the line and

neutral wire from an outlet for a treadmill shall be isolated from all other outlet contacts other

than the connection at the electrical power distribution box. The neutral bar of the electrical

power distribution box requires a connection to the earth ground.

Furthermore, there shall be no other electrical device operated off this circuit; just the single

treadmill. The earth ground connection of the outlet may be shared with other outlets’ earth

ground connections through either metal conduit or ground wire.

Each dedicated circuit requires 12 gauge wire for the line and neutral wires for runs less than

100 feet, as measured from the circuit breaker to the termination of the plug (outlet) connecting

to the treadmill. Runs greater than 100 feet require 10 gauge wires, and a run from a circuit

breaker shall not be greater than 200 feet.

Failure to meet these requirements may cause intermittent treadmill shut-down and potential

damage to the treadmill’s electronic components, and consequently, void the warranty.

Last updated 03/06/2017 637-4504 Rev. B

Product Placement

Star Trac recommends that treadmills be spaced a minimum of 20.0 inches (0.5 m) apart to

allow safe and easy ingress and egress. More importantly, there must be at least 48 inches

(1.25 m) of free space behind the treadmill.

The E-Series treadmill measures: 85” l by 36.0” w (215.9 x 91.5cm). See the following graph for

proper equipment spacing requirements:

Last updated 03/06/2017 637-4504 Rev. B

Preventative Maintenance

This section provides a list of factory recommended PM requirements. Long-term effects and

cost comparisons usually favor following a regular preventative maintenance schedule over

performing maintenance actions only when the system fails.

Preventative Maintenance Cautions

 While maintaining equipment you will want to avoid spraying any liquids directly onto any surface

of the unit. Always spray cleaning solutions onto a clean towel first then wipe the unit.

 While vacuuming the floor area using an upright vacuum, avoid getting the power cord caught in

the beater-brush of the vacuum.

 Disconnect the power cord from the wall before vacuuming under the shroud.

 Use extreme caution while vacuuming around wires and/or electrical components under the

shroud.

 Do not attempt to clean the running belt with a mop

 Do not apply any cleaners, protectants or solutions onto the running belt (i.e. Armor All,

SlickStuff, belt dressing, etc.)

Maintenance Actions:

Daily

Weekly

Monthly

Yearly

Wipe Down all Surfaces

X

Wipe Running belt with Dry Cloth

X

Elevate Unit and Vacuum underneath

X

Check Belt Tracking to assure belt stays centered

X

Check Condition of Power Cord

X

Inspect and Clean underside of running belt

X

Check drive belt tension

X

Check Running belt tension, adjusting if needed

X

Check all settings and Keypad Performance

X

Vacuum under shroud being careful around Electrical

Assy

X

Unplug unit and check all power connections including

speed sensor

X

Calibrate Elevation & Speed

X

Check Belt and Deck Condition and replace if wear found

X

Last updated 03/06/2017 637-4504 Rev. B

Treadmill Systems

Power System

The power system supplies AC and DC voltage to different components of the treadmill. There

are two parts of the power system, external power and internal power.

There are two sub-systems:

 External

 Internal

External

The external power is anything outside of the treadmill that supplies power.

Components:

 Breaker Box

 Wall Breaker

 Power Lines

 Dedicated/isolated lines

 Neutral Line

 Hot Line

 Ground Line

 Receptacle

Internal Power

The internal power is the components of the treadmill that are involved with power distribution.

Components:

 Power Cord

 On/Off Switch

 Onboard Circuit Breaker

 EMI Filter

 MCB

 Power Supply

 Data Cable

 Display Electronics

Last updated 03/06/2017 637-4504 Rev. B

Power Flow Diagrams

1. AC power goes from the

breaker box, through the

circuit breaker and power

lines to the power outlet.

2. AC power continues up

through the power cord,

through the onboard circuit

breaker, on/off switch, and

EMI filter to get to the MCB.

3. The MCB converts the

power to 12.6 volt VDC to

send up the display cable

to power up the display

electronics.

4. The MCB doubles the

incoming voltage (110 volt

systems only) and sends

220 VAC to the power the

drive motor. The MCB also

sends 6 VDC to power the

RPM sensor.

5. The MCB sends VAC to

power the elevation motor.

The power being sent will

depend on the input voltage.

110 VAC treadmills have a

110 volt elevation motor.

220 VAC treadmills have a

220 VAC elevation motor.

The MCB also sends 5 VDC

to the elevation sensor

(potentiometer).

6. The MCB passes along the

input VAC to the power

supply. The power supply

then converts the input

voltage to 12 VDC and

sends it up to the display

electronics to power the

fans (PVS kit or embedded

touch screen).

Last updated 03/06/2017 637-4504 Rev. B

Display System

The display system controls and commands most of the functions of the treadmill. It is the user

interface and the brain of the treadmill.

There are five sub systems:

1. Treadmill Operation

2. Watch Dog

3. Personal Cooling Fans

4. Heart Rate

5. Hot Bar/Warm Bar

Treadmill Operation

Treadmill operation is those functions and components that the user interacts with while working

out on the treadmill.

Components:

 Main Keypad (Display Panel)

 Display Electronics

 Data Cable

Watch Dog

The watch dog is the circuit/software inside the display electronics that monitors the different

systems in the treadmill. If there are any anomalies, the watch dog triggers any of the various

codes that will show up on the screen.

Components:

 Display Electronics

Personal Cooling Fans

This system is used to keep the users cool.

Components:

 Display electronics

 Fan Keypad

 Fans

Last updated 03/06/2017 637-4504 Rev. B

Heart Rate

The users have 2 types of heart rate to use, contact or Polar. Contact heart rate is used by

grabbing onto to the metal contacts on the hot/warm bar. Polar is a wireless system that

requires the user to wear the Polar chest strap.

Components:

 Display Electronics

 Contact Heart Rate Board

 Contact Heart Rate Cables

 Contact Heart Rate Grips

 Polar Receiver

Hot /Warm Bar

The Hot/Warm bar is the bar that is right in front of the user that has multiple functions and

components.

Warm Bar Components:

 Stop Button

 Emergency Stop (lanyard)

 Contact Hear Rate Grips

Hot Bar Components:

 Stop Button

 Emergency Stop (lanyard)

 Contact Heart Rate Grips

 Speed Control

 Elevation Control

 Headphone jack (for units with entertainment)

Last updated 03/06/2017 637-4504 Rev. B

Display System Power Flow

1. The user presses the keypad to select programs, speed, elevation etc. Those

keystrokes are received by the display electronics which sends the necessary requests

down the data cable to the MCB.

2. The watch dog is a part of the display electronics that monitors the systems of the

treadmill and will shut down the system if there are any anomalies.

3. The user presses the fan keypad to turn the fans on/off or change the speeds. The

display electronics receives the signals and sends the appropriate VDC to the fans.

4. The user grips the contact heart rate grips. A small amount of voltage is sent through

the grips and wires to the contact heart rate board. The contact heart rate board

calculates the Beats Per Minute (BPM) and sends this information to the display

electronics. If the user is wearing a Polar chest strap, signals from the strap will be

received by the Polar receiver. Those signals are sent to the display. The display will

display the BPM of the user’s heart.

5. When the user presses the stop button, the circuit opens (confirm that) and the display

electronics triggers the treadmill to: (a) pause on the first press, (b) end the program on

the second press and (c) give a ‘NO STOP’ code if the key is held for longer than 2

number of seconds. If the lanyard is pulled, the emergency stop circuit opens up and a

signal is sent to the MCB to cut power to the drive circuit. The message “EMERGENCY

STOP, PRESS STOP TO RESET TREADMILL” will appear on the display electronics.

Last updated 03/06/2017 637-4504 Rev. B

Drive System

The drive system is what makes the treadmill running belt move as well as sends feedback to

the display for keeping track of speed.

There two sub systems:

 Drive Power

 Feedback

Drive Power

Drive power is the VAC going to the drive motor to make it turn.

Components:

 Display Electronics

 Data Cable

 MCB

 Drive Motor

Feedback

Feedback is what the display uses to make sure the speed is what the user commanded.

Components:

 RPM Sensor

 MCB

 Data Cable

 Display Electronics

Last updated 03/06/2017 637-4504 Rev. B

Drive System Power Flow

1. The user enters what speed

they want the treadmill to go

by pressing the speed keys or

entering the desired speed on

the number keypad.

2. The display electronics

registers the requests and

send information down to the

MCB.

3. The MCB sends VAC to turn

the drive motor.

4. The drive motor pulley is

connected to the headroller..

5. As the drive motor turns the

RPM sensor signal is sent to

the MCB.

6. The MCB sends the signal

back to the display

electronics.

7. The display electronics

calculates that information to

determine the speed of the

drive motor. If the drive

motor is running too fast/slow,

the display will send signals to

the MCB to adjust the voltage

going to the drive motor until

the speed is correct.

Last updated 03/06/2017 637-4504 Rev. B

Belt & Deck System

The belt and deck system is the main function of the treadmill.

There two sub systems:

 Rollers

 Belt and Deck

Rollers

The rollers are used to make the belt rotate. It also applies tension and tracking for the belt.

Components:

 Drive Belt

 Headroller

 Tailroller

Belt and Deck

Belt and deck are two of the wear items in the system. The user runs on the belt and deck.

Components:

 Running belt

 Deck

1. The drive belt connects the drive motor

to the headroller.

2. The tailroller is used for tensioning and

tracking of the running belt.

3. The running belt goes around the two

rollers and the deck. The deck is the hard

surface that the running belt slides on.

Last updated 03/06/2017 637-4504 Rev. B

Elevation System

The elevation system controls the incline of the treadmill.

There two sub systems:

 Elevation Motor

 Elevation Sensor

Elevation Motor

The elevation motor is the muscle that makes the incline go up and down once it has received

signals from the display.

Components:

 Display Electronics

 Data Cable

 MCB

 Elevation Motor

Elevation Sensor

The elevation sensor is also known as the elevation potentiometer and is a part of the elevation

motor. It provides incline location feedback to the treadmill console.

Components:

 Elevation Motor

 MCB

 Data Cable

 Display Electronics

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Star Trac E Series Treadmill E-TRxi User manual

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Star Trac E Series Treadmill E-TRxi User manual

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