User's Manual
6
IMPORTANT SAFETY PRECAUTIONS 
When using electrical equipment, always follow these 
basic precautions:
IMPORTANT SAFETY INSTRUCTIONS
The following definitions apply to the words “Danger” and 
“Warning” found throughout this manual:
Used to call attention to potential 
hazards that could result in personal 
injury or loss of life.
READ  ALL  INSTRUCTIONS  BEFORE  USING 
THE MACHINE.
1.  Do not plug the treadmill into an outlet until the final assembly 
is complete and the motor cover is installed. 
2. 
CONSULT YOUR PHYSICIAN BEFORE STARTING ANY EXERCISE 
PROGRAM. Only he or she can determine the exercise program 
that is appropriate for your particular age and condition. If 
you have not been exercising or are pregnant or have a heart 
condition or any physical limitation, failure to consult your 
physician before engaging in physical exercise, such as using a 
Nautilus® Sport Series treadmill , could result in serious injury 
or death. If while using a Nautilus® Sport Series treadmill 
you have any pain or tightness in your chest, an irregular heart 
beat, shortness of breath, feel faint, light-headed or dizzy or 
have any pain or discomfort, STOP and consult your physician 
immediately.
3.  Read, understand, and test the SAFETY STOP PROCEDURES in 
the Owner’s Manual before using the treadmill. 
4.  The Safety Stop Cord does not turn off the electrical current 
to the treadmill. The treadmill continues to draw power, even 
when the display is off. To avoid electric shock, do not remove 
treadmill motor covers or place hands beneath the treadmill 
while the treadmill is plugged into a power source.
5.  Review all of the warning labels on the treadmill before use. 
6.  The Nautilus® Sport Series Treadmill, models T514, T516 
and T518 are intended for home use only. The T514 maximum 
user weight limit is 350 pounds (159 kilograms). The T516 
and T518 maximum user weight limit is 375 pounds (170 
kilograms). Do not exceed the maximum user weight limits. 
7.  Before each use of this equipment, inspect the treadmill for 
incorrect, worn, or loose components. The machine can be 
safely used only when it is regularly inspected for damage or 
wear. Inoperable components should be replaced, repaired, or 
tightened immediately, or the equipment should be taken out 
of use until repairs have been made.
8.        Do not wear any loose or dangling clothing or jewelry while
      using the Nautilus® Sport Series treadmill.  Always keep your 
hands, feet, clothing, etc. clear from beneath the treadmill and 
from all moving parts.  Never use your treadmill with the Motor 
Cover or Frame Covers removed.
9.   Always wear rubber-soled athletic shoes on the Nautilus® 
Sport Series treadmill. Never use the treadmill barefooted or 
wearing only socks. 
10.  Do not start the treadmill when someone is standing on 
the belt. Always stand on the foot rails on each side of the 
walking belt when starting the treadmill. Be careful when 
mounting or dismounting the treadmill. 
11. Keep speed and incline at the lowest settings when someone 
is getting on and off the treadmill.
12. 
Keep the area underneath and around the treadmill clear. 
Position the treadmill on a clean, level surface and do not 
place the treadmill on thick carpet as it may interfere with 
proper ventilation. We recommend the use of a treadmill mat 
that may be purchased from your treadmill dealer or Nautilus, 
Inc.
To reduce the risk of electrical shock, always unplug the 
external power supply from the electrical outlet before 
cleaning, maintaining, or repairing.
To reduce the risk of burns, electric shock, or injury to 
persons: Read this manual in full before operating the 
treadmill. Failure to follow these guidelines can produce 
a serious or possibly fatal electrical shock hazard or other 
serious injury. Consult a qualified electrician as required.
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