Treadmill User Manual
NAUTILUS
®
MAINTENANCE
37
Visually inspect and clean the treadmill regularly. 
Daily visual inspection should include:
• Inspect the power cord and walking belt for wear.
• Check the position of the walking belt; be sure it 
is not rubbing against the frame. The belt should 
be evenly spaced on the deck within 0.25 inch; 
adjust if necessary. 
• Remove potential hazards from the treadmill area.
Cleaning
• Daily: Keep the treadmill and display free of 
dust and debris. Use a damp sponge to wipe the 
exteriors and walking belt; do not soak surfaces. 
Dry all surfaces thoroughly.
Use a mild glass cleaner to clean display and keypad 
areas. Do not spray cleaner directly onto the treadmill. 
Instead spray cleaner onto a clean cloth. 
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WARNING DRY MOP THE DECK UNDER 
THE BELT ONLY. DO NOT ADD ANY LUBRICANTS. 
ADDING LUBRICANTS CAN RUIN THE PROPRIETARY 
FRICTION-CONTROL SURFACE.
DO NOT USE DETERGENTS OR CLEANING AGENTS 
ON ANY PART OF THE DECK.
DO NOT LET LIQUID ENTER THE TREADMILL 
OR DISPLAY. 
• Weekly: Elevate the treadmill to maximum incline 
and vacuum the fl oor under it to prevent excess dust 
and dirt from interfering with operation.
Treadmill Interior
Depending upon the treadmill environment, dust 
and or lint can accumulate under the hood. Periodic 
internal cleaning should be done by a qualifi ed 
service personnel.       
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WARNING DO NOT REMOVE THE 
TREADMILL HOOD: DANGEROUS VOLTAGES ARE 
PRESENT. COMPONENTS ARE SERVICEABLE ONLY 
BY QUALIFIED SERVICE PERSONNEL.
Walking Belt Tension Adjustment
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WARNING SECURE LONG HAIR AND 
LOOSE CLOTHING BEFORE WORKING NEAR THE 
TREADMILL WALKING SURFACE OR PULLEYS.
As the treadmill’s walking belt stretches through use 
it will become necessary to adjust tension on the 
belt. This often occurs within the fi rst few months of 
use. Adjust the belt tension whenever the belt slips or 
moves unsteadily during operation. 
The belt tension is adjusted by moving the rear 
roller of the treadmill back to reduce slack. This is 
accomplished by turning the adjustment bolts located 
on the back of the treadmill.
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IMPORTANT Do not over tighten 
walking belt! The belt need only be tight enough to 
prevent it from slipping during use. Excessive belt 
tension will decrease belt life and can damage the 
treadmill rollers and drive system.
1.  Using a ½ inch socket, turn the left and right 
adjusting bolts clockwise ½ turn. Use care to 
make each adjustment equal to ensure proper 
belt alignment. 
MAINTENANCE
Adjustment 
Bolts
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