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Plug the power cord of the treadmill directly into a dedicated grounded circuit carrying 15 amps (110 Volt model) 
or 7 amps (220 Volt model). We recommend the use of a surge protector.

Grounding Instructions

This product must be grounded. If it should malfunction or breakdown, grounding provides a path of 
least resistance for electric current to reduce the risk of electric shock. This product is equipped with a cord having
an equipment-grounding conductor and a grounding plug. The plug must be plugged into an appropriate outlet 
that is properly installed and grounded in accordance with all local codes and ordinances.

4.

Position the treadmill on a clear, level surface. Do not place the treadmill on thick carpet as it may interfere with 
proper ventilation. Also, do not place the treadmill near water or outdoors. Treadmill mats can usually be 
purchased from your treadmill dealer. If the power cord is damaged, it must be replaced by a power cord from 
Nautilus, Inc. Please contact your dealer or Nautilus.

5.

The minimum “clear” distance around the treadmill is 20 inches (.5 meters) on each side and 79 inches (2 meters)
behind the machine

6.

Position treadmill so that the wall plug is visible and accessible.

7.

Inspect the treadmill prior to each use for worn or loose components and then correct, replace, or tighten prior to
use.  Do not use the treadmill if any area is found to be in need of service.

8.

Read, understand, and test the Emergency Stop Procedures on Page 4 before use.

9.

Read, understand, and carefully follow all warnings, instructions, and procedures on the treadmill and in the
owner’s manual before using the treadmill.

10.

Wear appropriate clothing when exercising on the treadmill. Do not wear long, loose fitting clothing that could 
become caught in the treadmill.  Always wear running or aerobic shoes with rubber soles.

11.

Always attach the safety key rope to your clothing when using the treadmill. If the treadmill should suddenly
increase in speed due to an electronics failure or the speed being inadvertently increased, the treadmill will come
to a sudden stop when the key is disengaged from the console.

II

II

M

M

M

M

P

P

P

P

O

O

O

O

R

R

R

R

T

T

T

T

A

A

A

A

N

N

N

N

T

T

T

T

  

  

S

S

S

S

A

A

A

A

F

F

F

F

E

E

E

E

T

T

T

T

Y

Y

Y

Y

  

  

P

P

P

P

R

R

R

R

E

E

E

E

C

C

C

C

A

A

A

A

U

U

U

U

T

T

T

T

II

II

O

O

O

O

N

N

N

N

S

S

S

S

 

GROUNDING

PIN

GROUNDED

OUTLET

GROUNDED

OUTLET BOX

ADAPTER

METAL

SCREW

TAB FOR

GROUNDING SCREW

(B)

(C)

(A)

DIAGRAM - GROUNDING METHOD FOR
110 VOLT, UNITED STATES

W A R N I N G

W A R N I N G

A T T E N T I O N

D A N G E R

C A U T I O N

1

.

Before starting any exercise program, it is recommended that you consult your physician.  Stop exercising if you
feel any unusual pain or dizziness.

2.

To reduce the risk of electric shock, always unplug the treadmill from the electrical outlet immediately after using
and before cleaning.

3.

To reduce the risk of burns, fire, electrical shock or injury to persons:

THIS UNIT IS INTENDED FOR HOUSEHOLD USE ONLY.

READ ALL INSTRUCTIONS BEFORE USING THIS TREADMILL.

3

Summary of Contents for Trimline T523

Page 1: ...ead all instructions carefully before using this product Retain this owner s manual for future reference World Headquarters 16400 S E Nautilus Drive Vancouver WA 98683 USA Manufacturing Facility 12032...

Page 2: ...clusion may not apply to you WARRANTY REGISTRATION FOR THE US AND CANADA ONLY 1 Complete the enclosed warranty card and send via US mail or Canada Post or 2 Register online at http www nautilus com an...

Page 3: ...e 8 Read understand and test the Emergency Stop Procedures on Page 4 before use 9 Read understand and carefully follow all warnings instructions and procedures on the treadmill and in the owner s manu...

Page 4: ...E E EC C C CA A A AU U U UT T T TI I I IO O O ON N N NS S S S EMERGENCY STOP PROCEDURES This feature is meant to prevent serious harm and when used properly is an excellent way to protect your safety...

Page 5: ...bag 1 main base STEP 2 Remove motor cover to expose the motor see Figure 1 STEP 3 Install the upright assembly onto the upright brackets on the treadmill frame see Figure 2 Caution Use care not to dam...

Page 6: ...o access the cable wires see Figure 5 Insert cable wire connectors into their respective sockets on the power supply board see Figure 6 STEP 6 Fold up slack in the exposed cable wires and insert loose...

Page 7: ...is convenient We suggest on the end cap by the rear roller Refer to Taking Care of Your Treadmill for hex key use STEP 13 ADJUSTMENT OF REAR FEET If your treadmill sits unevenly you can adjust the rea...

Page 8: ...imes a week for 15 to 60 minutes Schedule workouts in advance workout even when you don t want to Control intensity of workout by speed and or by incline Start off with no elevation at first As you wa...

Page 9: ...ide Hamstring Stand on one leg and prop the other leg parallel to the ground on a table or cabinet top Slide both hands toward the propped up ankle as far as they ll go Repeat on other side Walking an...

Page 10: ...Using your chest strap you can monitor your heart rate at any time during your workout or you can use a pre pro grammed heart rate program How to use the chest strap The chest strap will send your hea...

Page 11: ...djust speed and incline using the ARROW or keys 7 End your workout by following the TO STOP section 11 O O O OP P P PE E E ER R R RA A A AT T T TI I I IO O O ON N N N G G G GU U U UI I I ID D D DE E E...

Page 12: ...the treadmill will remain at the same incline level Example During your workout if you press FAST INCLINE 5 ENTER the treadmill will adjust the incline level to 0 5 If you press FAST INCLINE 15 ENTER...

Page 13: ...rogram repeats until you choose to end the workout by following the TO STOP section You may override the speed or incline of any segment by using the ARROW or keys The change lasts for your cur rent w...

Page 14: ...m P6 Hill Repeat Fat Burn Speed and Incline mph 1 2 3 4 5 6 7 8 9 10 Speed Grade Interval 0 2 4 6 8 10 Program P7 Rolling Hills Speed and Incline mph 1 2 3 4 5 6 7 8 9 10 Speed Grade Interval 0 2 4 6...

Page 15: ...way to get into heart rate conditioning What is your primary exercise goal WEIGHT LOSS PROGRAM Use Program 9 P9 CARDIOVASCULAR PROGRAM Use Program 10 P10 These programs calculate suggested target hear...

Page 16: ...OWN ARROW during the work out The cardiovascular program keeps you at your target heart rate by doing the following You will control your speed until you reach your target heart rate zone which is or...

Page 17: ...eriod of time TARGET HEART RATE 220 age 0 6 1 15 After you begin you have a one minute warm up The program then adjusts the incline level of the treadmill in a similar fashion as used in the Heart Rat...

Page 18: ...s in your chest an irregular heartbeat shortness of breath feel faint or have any discomfort while you exercise STOP Consult your physician before continuing Age Low Fair Average Good High Athletic Ol...

Page 19: ...may change the stored weight age and workout time values using the ARROW or keys or Numeric Keypad However if you wish to confirm the current values you may press START STOP after selecting your desir...

Page 20: ...use this program see step 7 in the To use your preprogrammed personal program section below To use your preprogrammed personal program 1 Press POWER 2 Press USER 1 USER 2 USER 3 or USER 4 key to selec...

Page 21: ...TOTAL TREADMILL ODOMETER This shows how many miles or kilometers have been placed on the treadmill This is shown in the dot matrix display along with your workout elevation gain Logged into a user pro...

Page 22: ...22 E E E EX X X XP P P PL L L LO O O OD D D DE E E ED D D D V V V VI I I IE E E EW W W W 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 18 16 19 17 18...

Page 23: ...23 E E E EX X X XP P P PL L L LO O O OD D D DE E E ED D D D V V V VI I I IE E E EW W W W 20 21 22 23 24 25 26 27 28 29 Pivot Point 30 32 33 34 35 36 35 38 39 40 41 37 31...

Page 24: ...02171 Upright Assembly 15 KK2835 Motor Cover 16 372148 Handrail Left 17 372147 Handrail Right 18 372154 Handrail Clamp 19 QQ2277 Cable 20 KK2575 Belt Walking Key Part Description 21 KK2572 Roller Fron...

Page 25: ...Actuator Pin HH2148 E Clip HH2150 Hex Head Bolt 1 4 20 x 1 HH2151 Cage Nut 5 16 HH2154 Washer 5 16 HH2160 Phil Truss Screw 8 x 1 1 4 HH2167 Screw Truss 8 x 1 1 2 HH2168 Hex Head Bolt 5 16 x 1 1 2 HH21...

Page 26: ...ch Place the hex key in the hole in left end cap and into the socket of the adjustment screw Turn key one full turn clockwise Then place hex key in hole in right end cap and turn key one full turn clo...

Page 27: ...cuum under the cover and around the machinery REPLACE THE COVER BEFORE PLUGGING THE UNIT BACK INTO THE OUTLET WALKING BELT AND DECK LUBRICATION This treadmill is equipped with a pre lubricated deck an...

Page 28: ...tructions Walking belt slips 1 Walking belt loose 1 Adjust walking belt tension See Taking Care of Your Treadmill Walking belt not centered 1 Walking belt tension not centered across the rear roller 1...

Page 29: ...ME PACE display will show CAL PASS 7 Press POWER Your treadmill is ready for use CONVERSION TO METRIC In order to convert to miles or kilometers do the following 1 Press and hold the ENTER key for 5 s...

Page 30: ...Vancouver Washington USA 98683 16400 SE Nautilus Drive Phone 800 NAUTILUS 800 628 8458 Vancouver Washington USA 98683 Fax 877 686 6466 Phone 800 NAUTILUS 800 628 8458 Fax 877 686 6466 E mail customers...

Page 31: ...2006 Nautilus Inc All Rights Reserved Nautilus and Trimline are registered trademarks of Nautilus Inc All other trademarks are owned by their respective companies...

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