NordicTrack Elite 3700 Treadmill User Manual

Table of Contents

• Warning Decal Placement
• Important Precautions
• Before You Begin
• Part Identification Chart
• Assembly
• The Chest Heart Rate Monitor
• Operation and Adjustment
• How to Fold and Move the Treadmill
• Troubleshooting
• Exercise Guidelines
• Part List
• Exploded Drawings
• Ordering Replacement Parts
• Limited Warranty

Warning Decal Placement

This section shows the locations of warning decals. If a decal is missing or illegible, contact Customer Care for a free replacement and apply it to the indicated location. Note: Decals may not be shown at actual size.

⚠️ CAUTION: KEEP HANDS AND FEET AWAY FROM THIS AREA WHILE THE TREADMILL IS IN OPERATION.

⚠️ WARNING: Protect yourself and others from risk of serious injury. Read the user's manual, and:

• Stand only on the side rails when starting or stopping the treadmill.
• Change speed in small increments.
• Hold handrails to prevent falling, and always wear the safety clip while operating the treadmill.
• Stop if you feel faint, dizzy, or short of breath.
• Fully engage the storage latch before the treadmill is moved or stored.
• Incline should be set to zero before folding the treadmill into a storage position.
• Never allow children on or around the treadmill.
• Remove the safety key when the treadmill is not in use.
• Keep clothing, fingers, and hair away from moving parts.
• Never try to adjust or fix the belt while it is moving.
• Always wear athletic shoes while operating the treadmill.

Important Precautions

⚠️ WARNING: To reduce the risk of burns, fire, electric shock, or injury to persons, read all important precautions and instructions in this manual and all warnings on your treadmill before using your treadmill. ICON assumes no responsibility for personal injury or property damage sustained by or through the use of this product.

1. Ensure all users are adequately informed of warnings and precautions.
2. Consult a physician before beginning any exercise program, especially if over 35 or with pre-existing health problems.
3. Use the treadmill only as described in this manual.
4. The treadmill is intended for home use only; do not use in commercial, rental, or institutional settings.
5. Keep the treadmill indoors, away from moisture and dust. Do not place it near water, in a garage, or on a covered patio.
6. Place the treadmill on a level surface with at least 8 ft. (2.4 m) clearance behind and 2 ft. (0.6 m) on each side. Do not block air openings. Use a mat to protect floors.
7. Do not operate where aerosol products are used or oxygen is administered.
8. Keep children under 12 and pets away from the treadmill at all times.
9. The treadmill is for users weighing 375 lbs. (170 kg) or less.
10. Never allow more than one person on the treadmill at a time.
11. Wear appropriate exercise clothes and athletic shoes. Avoid loose clothing, bare feet, stockings, or sandals.
12. Plug the power cord into a surge suppressor (not included) and then into an appropriate outlet. Do not overload the circuit with other devices.
13. Use only a UL 1449 listed surge suppressor with a rating of 400 volts or less and 450 joules minimum dissipation, rated for 120 volts AC and 15 amps. Ensure it has a monitoring light.
14. Failure to use a proper surge suppressor can damage the control system, leading to unexpected belt movement and potential injury.
15. Keep the power cord and surge suppressor away from heated surfaces.
16. Never move the walking belt while the power is off. Do not operate if the power cord or plug is damaged or if the treadmill is not working properly.
17. Read, understand, and test the emergency stop procedure (see HOW TO TURN ON THE POWER on page 20).
18. Never start the treadmill while standing on the walking belt. Always hold the handrails while using the treadmill.
19. The treadmill is capable of high speeds. Adjust speed in small increments to avoid sudden changes.
20. The heart rate monitor is not a medical device; readings may vary due to movement. It is intended as an exercise aid for general heart rate trends.
21. Never leave the treadmill unattended while running. Remove the key, turn off the power switch, and unplug the power cord when not in use.
22. Do not attempt to move the treadmill until properly assembled. You must be able to safely lift 45 lbs. (20 kg) to move it.
23. When folding or moving, ensure the storage latch is securely engaged.
24. Do not change the incline by placing objects under the treadmill.
25. Never insert objects into any opening on the treadmill.
26. Inspect and tighten all parts regularly.
27. ⚠️ DANGER: Always unplug the power cord immediately after use, before cleaning, and before maintenance. Never remove the motor hood unless instructed by an authorized service representative. Servicing other than described in this manual should only be performed by an authorized service representative.
28. Over exercising may result in serious injury or death. Stop immediately and cool down if you feel faint or experience pain.

SAVE THESE INSTRUCTIONS

iFIT Promotion

MAKE YOUR FITNESS GOALS A REALITY. Congratulations on your new iFit® compatible fitness equipment. Go to IFIT.COM to get started.

DO MORE THAN JUST WORK OUT

iFit® is the most powerful training tool available. Features include weight loss programs, personalized training, competition, mobile tracking, and progress sharing. Some features require a paid subscription.

• LOSE WEIGHT: Stay motivated with progressive weight loss programs.
• PERSONALIZED EVENT TRAINING: Prepare for races like 5k, 10k, half or full marathons.
• MAP YOUR ROUTE: Simulate terrain with Google Maps™ and Street View.
• COMPETE WITH OTHERS: Push limits with real-time virtual races.
• GO MOBILE: Track workouts anywhere with iFit® mobile apps.
• SHARE YOUR PROGRESS: Inspire others and share routes.

GO TO IFIT.COM OR CALL 877-236-1009.

Extended Service Plans

Protect your fitness equipment with an extended service plan. ICON offers Preventive Maintenance Service Plans and Standard Service Plans with features like annual checks, unlimited in-home repairs, and coverage for manufacturer's defects and wear and tear.

For details, call Customer Care at 1-800-677-3838 or visit www.utserv.com.

Before You Begin

Thank you for selecting the NordicTrack Elite 3700 treadmill. It offers advanced features for effective and enjoyable home workouts and can be folded for space-saving storage. Read this manual carefully before use. Note the product model and serial number for customer assistance.

Treadmill Dimensions: Length: 6 ft. 5 in. (183 cm), Width: 3 ft. 3 in. (100 cm).

Familiarize yourself with the labeled parts of the treadmill:

• Console: The control panel area.
• Tray: A holder, likely for a water bottle or device.
• Handrail: Support bars for balance.
• Upright: Vertical supports connecting the base to the console.
• Heart Rate Monitor: Handgrip sensors on the console.
• Key/Clip: Safety key and attachment clip.
• Walking Belt: The surface for running or walking.
• Foot Rail: Side platforms for resting feet.
• Idler Roller Adjustment Screws: Used for belt tensioning.
• Power Switch: Located near the power cord.
• Power Cord: Connects the treadmill to the power source.
• Platform Cushion: Part of the deck structure.

Part Identification Chart

This chart identifies small parts used for assembly. Numbers in parentheses correspond to the PART LIST. Extra parts may be included.

Assembly

Assembly requires two persons. Clear an area and remove packing materials. Wipe off any oily residue with a soft cloth and mild cleaner. Left parts are marked 'L' or 'Left', right parts 'R' or 'Right'. Tools required: included hex key, adjustable wrench, Phillips screwdriver. Do not use power tools.

1. Register Product: Go to www.nordictrackservice.com/registration to activate your warranty, save time for customer care, and receive upgrade notifications. If no internet access, call customer care.
2. Attach Wheel Assemblies: Ensure the power cord is unplugged. Attach the right wheel assembly (A) to the right Upright (84) using two 5/16" x 3/4" Screws. Repeat for the left wheel assembly.
3. Install Upright Covers: Identify Left (89) and Right (90) Upright Covers. Slide them onto the respective Uprights (84) and press down until they snap into place. Remove four 5/16" x 2" Screws (2) from the uprights; these will be used later.
4. Attach Handrails: Attach the two Handrails (74) to the Uprights (84) using two 5/16" x 2" Screws (2) and two 5/16" Star Washers (8). Do not fully tighten yet. Be careful not to pinch the Upright Wire (83). Remove and discard two screws labeled 'B'.
5. Prepare Console: Set the console assembly (C) face down on a soft surface. Remove and discard four screws labeled 'D'. Remove the Pulse Crossbar (80).
6. Attach Pulse Crossbar: Orient the Pulse Crossbar (80) as shown. Attach it using two 5/16" x 2" Screws (2), two 5/16" Star Washers (8), and two #10 x 3/4" Screws (6). Start all four screws, then tighten. Then, tighten the remaining two 5/16" x 2" Screws (2).
7. Connect Console to Handrails: With a second person's help, hold the console assembly (C) near the Handrails (74). Connect the Upright Wire (83) to the console wire (F) by sliding the connectors together until they snap. Ensure proper connection to avoid console damage. Remove any wire ties from the Upright Wire.
8. Secure Console Assembly: Attach the console assembly (C) to the Handrails (74) using four 5/16" x 2" Screws (2) and four 5/16" Star Washers (8). Start all screws, then tighten, being careful not to pinch wires. Insert wires into the console assembly.
9. Attach Pulse Crossbar Screws: Identify #8 x 3/4" Screws (5). Do not confuse them with Truss Head Screws (110). Start four #8 x 3/4" Screws (5) into the Pulse Crossbar (80) and tighten them carefully.
10. Install Handrail Covers: Place the Right Handrail Top Cover (81) on the right Handrail (74). Attach the Right Handrail Bottom Cover (82) to the Handrail and Top Cover using four #8 x 3/4" Truss Head Screws (110). Repeat for the Left Handrail Top (73) and Bottom (75) Covers.
11. Attach Upright Crossbar: Slide the Upright Crossbar (76) between the Uprights (84). Attach it using four 5/16" x 3/4" Screws (1). Start all screws, then tighten.
12. Attach Tray: Attach the Tray (79) to the Upright Crossbar (76) using four #8 x 3/4" Screws (5). Start all screws, then tighten.
13. Install Storage Latch: Raise the Frame (52) to the shown position, with a second person holding it. Orient the Storage Latch (56) with the decal facing away from the treadmill. Attach the lower end of the latch to the bracket on the Upright (84) using a 5/16" x 1 3/4" Bolt (3) and a 5/16" Nut (9). Raise the latch to a vertical position and remove the tie (G).
14. Secure Storage Latch: Align the upper end of the Storage Latch (56) with the bracket on the Frame (52). Insert a 5/16" x 2 1/4" Bolt (4) through the bracket, pushing out a spacer (H). Discard the spacer. Attach the latch with the 5/16" x 2 1/4" Bolt (4) and a 5/16" Nut (9). Lower the Frame (52).
15. Final Check: Ensure all parts are properly tightened. Remove any plastic from decals. Place a mat under the treadmill to protect the floor. Keep hex keys secure; one is used for belt adjustment.

The Chest Heart Rate Monitor

How to Put On the Heart Rate Monitor

The monitor consists of a chest strap and a sensor. Insert the strap tab into the sensor hole, then secure the sensor under the buckle. The tab should be flush with the sensor front.

Wear the monitor under clothes, tight against the skin. Wrap it around the chest, ensuring the logo faces up. Adjust strap length as needed.

Wet the two electrode areas (covered by shallow ridges) with saline solution, saliva, or contact lens solution before placing the sensor against your chest.

Care and Maintenance

• Dry the sensor thoroughly after each use to prevent battery drain.
• Store the monitor in a warm, dry place, not in a plastic bag.
• Avoid direct sunlight and temperatures above 122°F (50°C) or below 14°F (-10°C).
• Do not excessively bend or stretch the sensor.
• Clean the sensor with a damp cloth and mild soap, then dry thoroughly. Never use alcohol, abrasives, or chemicals. Hand wash and air dry the chest strap.

Troubleshooting

• Ensure the monitor is worn correctly. Adjust position slightly if needed.
• Rewet electrode areas if readings only appear after perspiring.
• The console must be within arm's length for readings.
• Replace the sensor battery if a battery cover is present.
• Heart rate reading problems may be caused by medical conditions (e.g., PVCs, tachycardia, arrhythmia).
• Magnetic interference from power lines can affect operation; try relocating the equipment.

Operation and Adjustment

How to Connect the Power Cord

Use a Surge Suppressor

To protect against voltage surges, always use a surge suppressor with the treadmill. Use a UL 1449 listed suppressor with a 400V or less rating, 450 joules minimum dissipation, and rated for 120V AC/15 amps. It must have a functioning monitoring light. Failure to do so may damage the control system and cause injury.

Plug in the Power Cord

⚠️ WARNING: Improper connection increases electric shock risk. Do not modify the plug. If it doesn't fit, have a qualified electrician install a proper outlet. Contact a qualified electrician if unsure about grounding.

Plug the power cord into the surge suppressor, and the suppressor into a properly installed and grounded outlet. The outlet must be on a nominal 120-volt circuit (15 amps). Avoid plugging other devices (except low-power ones like phone chargers) into the same circuit or suppressor. The treadmill is not compatible with GFCI or AFCI outlets.

A temporary adapter can be used for 2-pole receptacles if a grounded outlet is unavailable. Connect the adapter's lug/wire to a permanent ground (e.g., a grounded outlet box cover) using a metal screw. Consult an electrician to verify grounding before using an adapter.

Console Diagram and Features

The console provides access to various features for effective workouts, including manual mode, onboard workouts, iFit compatibility, and a sound system. You can measure heart rate via handgrips or a chest monitor.

Console Buttons: Includes iFIT, MAP, TRAIN, COMPETE, TRACK, SET A GOAL, LOSE WT., MANUAL, AUTO, START, STOP, SPEED +/-, INCLINE +/-, and OneTouch™ controls.

Display: Shows workout information like elapsed time, distance, calories burned, incline, speed, and heart rate. The matrix area displays workout profiles.

iFit Mode: Requires an optional iFit module and internet connection for personalized workouts, tracking, and racing. An iFit.com membership is also needed.

Sound System: Allows playback of music or audio books via a 3.5mm audio cable (not included).

Settings Mode: Access via the Settings button to view treadmill usage hours and distance, change units (miles/kilometers), enable/disable demo mode, adjust display contrast, toggle trainer voice, set default menus, check Wi-Fi status, and send/receive data.

Units: Select ENGLISH for miles or METRIC for kilometers.

Demo Mode: For store display; buttons are inactive when the key is removed, but displays remain lit.

IMPORTANT: Remove protective plastic from the console. Wear clean athletic shoes. Ensure the walking belt is aligned and centered.

How to Turn On the Power

IMPORTANT: Allow the treadmill to warm to room temperature before powering on if exposed to cold.

1. Plug in the power cord.
2. Locate and press the power switch to the 'reset' position.
3. If the display lights up immediately and stays on when the power switch is pressed, demo mode is active. To turn off demo mode, hold the Stop button for a few seconds. If displays remain lit, use Settings Mode (page 26).
4. Stand on the foot rails. Attach the safety clip on the key to your waistband.
5. Insert the key into the console. Displays will light after a moment.
6. ⚠️ WARNING: In an emergency, removing the key stops the belt. Test the clip by stepping back; adjust if the key is not pulled.

How to Use the Manual Mode

1. Insert the key into the console.
2. Select Manual Mode by pressing the Manual Control button if not already active.
3. Start the Walking Belt: Press Start, Speed Increase, or a numbered Speed button (1-12). The belt starts at 1 mph. Adjust speed using Speed Increase/Decrease buttons (0.1 mph increments, or hold for 0.5 mph increments). Numbered buttons may require pressing two digits for decimals (e.g., '3' then '5' for 3.5 mph). To stop, press Stop. The time display will flash. Press Start or Speed Increase to resume.
4. Change Incline: Use the Incline Increase/Decrease buttons or numbered buttons to adjust the incline.
5. Follow Progress: The display shows elapsed time, distance, intensity bar, calories burned, incline, vertical feet climbed, speed, and heart rate. The matrix displays workout profiles (Incline, Speed, My Trail, Calorie).
6. Measure Heart Rate: Stand on foot rails, hold console handgrips with clean, dry hands on the metal contacts. A heart symbol will flash with each beat. Continue holding for 15 seconds for accurate reading.

Finishing a Workout

• Turn on Fan: Use the fan buttons to select speed or auto mode.
• End Workout: Step onto foot rails, press Stop, set incline to zero (required for folding). Remove the key and secure it. Press the power switch to 'off' and unplug the power cord to prevent premature wear of electrical components.

Onboard Workouts

Select an onboard workout by pressing Calorie, Incline, Intensity, or Speed buttons until the desired workout appears. The display shows duration and name. The matrix shows speed profiles. Calorie workouts display estimated calories burned.

Start Workout: Press Start or Speed Increase. The treadmill adjusts to the first speed and incline settings. Hold handrails and begin walking.

Workouts are divided into segments, each with programmed speed and incline. Progress is shown in the matrix. Tones indicate segment changes. The belt slows to a stop at the end.

Follow Progress: See step 5 in Manual Mode. For onboard workouts, time remaining is shown instead of elapsed time.

Measure Heart Rate: See step 6.

Turn on Fan: See step 7.

End Workout: See step 8.

Set-a-Goal Workout

1. Insert the key.
2. Select a Set A Goal workout by pressing the button. Choose a calorie, time, or distance goal. Set the goal using the increase/decrease buttons, then press Enter. Set speed and incline using the respective buttons. The screen displays duration, distance, and estimated calories.
3. Start the workout by pressing Start. The belt begins moving. Hold handrails.
4. The workout functions like manual mode, continuing until the goal is met. The belt then slows to a stop.
5. Follow progress as in Manual Mode, step 5.
6. Measure heart rate if desired (step 6).
7. Turn on the fan if desired (step 7).
8. End workout by removing the key (step 8).

Note: Calorie goals are estimates; actual burn depends on factors like weight and manual adjustments.

Pulse Workout

Pulse workouts automatically control speed and incline to maintain a target heart rate. A chest heart rate monitor is required.

1. Wear the chest heart rate monitor (see page 17).
2. Insert the key into the console.
3. Select a pulse workout by pressing Set A Goal, then use increase/decrease and Enter buttons to choose pulse weight loss or pulse performance.
4. Enter workout time using increase/decrease and Enter buttons.
5. Enter maximum heart rate (consult physician for determination).
6. Start the workout by pressing Start. The belt begins moving. Hold handrails.
7. Enter a warm-up speed (default 2 mph). Speed will adjust relative to warm-up speed.
8. Follow progress on the displays (see step 5, page 21).
9. Turn on the fan if desired (step 7, page 22).
10. Set a cool-down speed (default 2 mph).
11. End workout by removing the key (step 8, page 22).

iFit Workout

To use iFit, you need an optional iFit module, a computer with internet access, and a wireless network. An iFit.com membership is also required.

1. Insert the key into the console.
2. Insert the iFit module into the console (follow module instructions). Ensure the module's antenna/transmitter is at least 8 inches (20 cm) from people and other transmitters.
3. Select a user if multiple users are registered.
4. Select an iFit workout by pressing the iFit, Map, Train, Lose Wt., Compete, or Track buttons. Some workouts require adding them to your schedule on www.iFit.com.
5. The display shows workout duration, distance, and estimated calories. Competition workouts show a countdown. Demo workouts can be run by removing the iFit module and pressing an iFit button.
6. Start the workout (see step 3, page 22). An audio coach may provide guidance.
7. To stop, press Stop. To resume, press Start or Speed Increase. The belt adjusts to segment settings.
8. Follow progress on the displays (see step 5, page 21). My Trail shows route maps; Competition shows race progress.

For more iFit information, visit www.iFit.com.

How to Use the Sound System

Connect a 3.5mm audio cable (not included) from your MP3 player, CD player, or other audio device to the console jack. Ensure the cable is fully plugged in. Purchase cables from local electronics stores.

Press play on your audio device. Adjust volume using console buttons or your device's controls. If using a CD player, place it on a flat surface to prevent skipping.

The Settings Mode

Access the Settings Mode by pressing the Settings button to view treadmill usage data and personalize settings.

1. Select Information Mode: Press Settings. The display shows total hours used and miles/kilometers moved.
2. Select Optional Screens: Use the decrease button next to Enter to cycle through screens:
   • UNITS: Press Enter to change measurement units. Select ENGLISH for miles or METRIC for kilometers.
   • DEMO: Toggle demo mode ON/OFF by pressing Enter. In demo mode, displays remain lit after key removal, but buttons are inactive. 'ON' appears in the matrix when active.
   • CONTRAST: Adjust display contrast using Incline Increase/Decrease buttons.
   • TRAINER VOICE: Turn the audio coach on or off by pressing Enter.
   • DEFAULT MENU: Press Enter repeatedly to set the manual or iFit screen as the default.
   • CHECK WIFI STATUS: View software version, network details, connection status, signal strength, IP address, registered users, and iFit server status.
   • SEND/RECEIVE DATA: Send/receive workouts, logs, and updates. 'TRANSFERS DONE' appears upon completion.
3. Exit Settings Mode: Remove the key from the console.

How to Adjust the Cushioning System

The treadmill has a cushioning system to reduce impact. Remove the key and unplug the power cord. You may need to fold the treadmill for access.

To adjust firmness, turn the cushioning screws. Ensure cushions on both sides are set to the same firmness level. Faster running or higher body weight may require firmer cushioning.

How to Fold and Move the Treadmill

How to Fold the Treadmill

CAUTION: Adjust incline to zero before folding. Remove key and unplug power cord. You must be able to safely lift 45 lbs. (20 kg).

1. Hold the metal frame firmly (not the plastic foot rails). Bend your legs and keep your back straight.
2. Raise the frame until the storage latch locks securely in the storage position.

How to Move the Treadmill

CAUTION: Ensure the storage latch is locked. Moving may require two people.

1. Hold handrails with both hands and carefully push the treadmill to the desired location. Do not pull on the frame or move over uneven surfaces.

How to Lower the Treadmill for Use

1. Press on the upper end of the treadmill, press the storage latch with your foot, and allow the frame to lower to the floor.

Place a mat under the treadmill. Keep it out of direct sunlight and avoid storage in temperatures above 85°F (30°C).

Troubleshooting

Symptom: The power does not turn on

• Ensure power cord is plugged into a surge suppressor and the suppressor into a grounded outlet. Use a suppressor meeting specifications (page 18). Not compatible with GFCI/AFCI outlets.
• Ensure the safety key is inserted into the console after plugging in the power cord.
• Check the power switch. If it has tripped (protrudes), wait five minutes and reset it.
• Remove and reinsert the key.
• If the treadmill still does not run, contact customer support (front cover).

Symptom: The power turns off during use

• Check the power switch; reset if tripped.
• Ensure the power cord is plugged in. Unplug, wait five minutes, and plug back in.

Symptom: The console displays remain lit when you remove the key

• Demo mode is active. To turn off, hold the Stop button for a few seconds. If displays remain lit, use Settings Mode (page 26).

Symptom: The displays of the console do not function properly

• Remove key, unplug power cord. Remove five #8 x 3/4" Screws (2). Carefully pivot off the Motor Hood (65).

Symptom: The incline of the treadmill does not change correctly

• Recalibration: Hold Stop and Speed Increase, insert key, release buttons. Press Stop, then Incline Increase/Decrease. The incline will cycle to calibrate. If it doesn't start, repeat the process. Remove key when calibrated.

Symptom: The walking belt slows when walked on

• Use a surge suppressor meeting specifications (page 18).
• Belt Tension: If overtightened, performance decreases. Unplug, use hex key to turn idler roller screws counterclockwise 1/4 turn. Belt should lift 2-3 inches (5-7 cm) off the platform. Keep belt centered. Plug in, run treadmill to check. Repeat as needed.
• The walking belt has a high-performance lubricant. Do not apply silicone spray or other substances unless instructed by service. These can deteriorate the belt. Contact service if lubricant is suspected to be low.
• If belt still slows, contact customer support (front cover).

Symptom: The walking belt is off-center or slips

• Centering: Unplug. If belt shifted left, turn left idler roller screw clockwise 1/2 turn. If shifted right, turn counterclockwise 1/2 turn. Be careful not to overtighten. Plug in, run treadmill to check. Repeat until centered.
• Slipping: Unplug. Turn both idler roller screws clockwise 1/4 turn. Belt should lift 2-3 inches (5-7 cm) off the platform when tightened correctly. Keep belt centered. Plug in, run treadmill to check. Repeat until properly tightened.

Symptom: The console display has lines running through it

• See THE SETTINGS MODE on page 26 and adjust the display contrast.

Exercise Guidelines

⚠️ WARNING: Consult your physician before starting any exercise program, especially if over 35 or with pre-existing health problems.

The heart rate monitor is an exercise aid for general trends, not a medical device. Accuracy may vary.

These guidelines help plan your exercise program. Proper nutrition and rest are essential.

Exercise Intensity

Exercise at the proper intensity for your goal (fat burning or cardiovascular strengthening). Use your heart rate as a guide.

Training Zone Chart: Find your age group (rounded to nearest ten years) at the bottom. The three numbers above your age indicate your training zone: lowest for fat burning, middle for maximum fat burning, highest for aerobic exercise.

Burning Fat: Exercise at low intensity for sustained periods. Body uses carbs first, then fat. Aim for the lower end of your training zone for fat burning, middle for maximum fat burning.

Aerobic Exercise: Strengthens cardiovascular system. Requires large oxygen intake. Aim for the higher end of your training zone.

Workout Guidelines

• Warming Up: 5-10 minutes of stretching and light exercise to increase body temperature, heart rate, and circulation.
• Training Zone Exercise: 20-30 minutes within your training zone. Limit to 20 minutes in the first few weeks. Breathe regularly.
• Cooling Down: 5-10 minutes of stretching to improve flexibility and prevent post-exercise issues.

Exercise Frequency

Complete three workouts per week with at least one rest day between. After a few months, up to five workouts per week can be done. Make exercise a regular, enjoyable part of your life.

Suggested Stretches

Perform stretches slowly, without bouncing.

1. Toe Touch Stretch: Stand with knees bent, bend forward from hips. Relax back and shoulders. Reach towards toes. Hold 15 counts, relax. Repeat 3 times. Stretches: Hamstrings, back of knees, back.
2. Hamstring Stretch: Sit with one leg extended. Bring opposite foot sole to inner thigh of extended leg. Reach towards toes. Hold 15 counts, relax. Repeat 3 times per leg. Stretches: Hamstrings, lower back, groin.
3. Calf/Achilles Stretch: One leg forward, reach hands to wall. Keep back leg straight, foot flat. Bend front leg, lean forward. Hold 15 counts, relax. Repeat 3 times per leg. For deeper stretch, bend back leg. Stretches: Calves, Achilles tendons, ankles.
4. Quadriceps Stretch: Use wall for balance. Reach back, grasp foot, bring heel close to buttocks. Hold 15 counts, relax. Repeat 3 times per leg. Stretches: Quadriceps, hip muscles.
5. Inner Thigh Stretch: Sit with soles of feet together, knees outward. Pull feet towards groin. Hold 15 counts, relax. Repeat 3 times. Stretches: Quadriceps, hip muscles.

Part List

This list details all parts used in the treadmill. Key numbers correspond to the Exploded Drawings.

Exploded Drawings

The exploded drawings (A, B, C, D) illustrate how all the components of the NordicTrack Elite 3700 treadmill fit together. They show the arrangement and connection points of various parts, including the frame, uprights, console, motor, belt, and accessories, referencing the part numbers from the Part List for identification.

Ordering Replacement Parts

To order replacement parts, contact customer support with the product's model number, serial number, product name, and the key number and description of the required part(s) from the Part List or Exploded Drawings.

Limited Warranty

ICON Health & Fitness, Inc. warrants this product to be free from defects in workmanship and material under normal use. The frame and drive motor have a lifetime warranty. Parts and electronics are warranted for five (5) years, and labor for two (2) years from the date of purchase.

This warranty is for the original purchaser only. Repairs or replacements are at ICON's option and must be preauthorized. Freight charges for warranty repairs are the customer's responsibility. A minimal handling or trip charge may apply for replacement parts or in-home service.

The warranty is voided if the product is used as a store display, purchased/transported outside the USA, not used according to instructions, abused, or used commercially/for rental.

ICON is not liable for indirect, special, or consequential damages. Some states may not allow limitations on implied warranties.

ICON Health & Fitness, Inc., 1500 S. 1000 W., Logan, UT 84321-9813.