This drawing shows the location(s) of the warning decal(s). If a decal is missing or illegible, see the
front cover of this manual and request a free replacement decal. Apply the decal in the location
shown. Note: The decal(s) may not be shown at actual size.
NORDICTRACK is a registered trademark of ICON Health & Fitness, Inc.
2
IMPORTANT PRECAUTIONS
WARNING: To reduce the risk of serious injury, read all important precautions and
instructions in this manual and all warnings on your exercise bike before using your exercise bike.
ICON assumes no responsibility for personal injury or property damage sustained by or through the
use of this product.
1. It is the responsibility of the owner to
ensure that all users of the exercise bike are
adequately informed of all precautions.
2. Before beginning any exercise program,
consult your physician. This is especially
important for persons over age 35 or persons with pre-existing health problems.
3. The exercise bike is not intended for use by
persons with reduced physical, sensory, or
mental capabilities or lack of experience and
knowledge, unless they are given supervision or instruction about use of the exercise
bike by someone responsible for their safety.
4. Use the exercise bike only as described in
this manual.
5. The exercise bike is intended for home use
only. Do not use the exercise bike in a commercial, rental, or institutional setting.
6. Keep the exercise bike indoors, away from
moisture and dust. Do not put the exercise
bike in a garage or covered patio, or near
water.
7. Place the exercise bike on a level surface,
with a mat beneath it to protect the floor or
carpet. Make sure that there is at least 2 ft.
(0.6 m) of clearance around the exercise bike.
9. Keep children under age 13 and pets away
from the exercise bike at all times.
10. Wear appropriate clothes while exercising;
do not wear loose clothes that could become
caught on the exercise bike. Always wear
athletic shoes for foot protection.
11. The exercise bike should not be used
by persons weighing more than 250 lbs.
(113 kg).
12. Be careful when mounting and dismounting
the exercise bike.
13. Always keep your back straight while using
the exercise bike; do not arch your back.
14. The exercise bike does not have a freewheel;
the pedals will continue to move until the
flywheel stops. Reduce your pedaling speed
in a controlled way.
15. To stop the flywheel quickly, press the
resistance knob downward.
16. When the exercise bike is not in use, tighten
the resistance knob completely to prevent
the flywheel from moving.
17. To avoid damaging the brake pads, do not
lubricate the brake pads.
8. Inspect and properly tighten all parts each
time the exercise bike is used. Replace any
worn parts immediately.
18. Over exercising may result in serious injury
or death. If you feel faint, if you become short
of breath, or if you experience pain while
exercising, stop immediately and cool down.
3
STANDARD SERVICE PLANS
4
BEFORE YOU BEGIN
Thank you for selecting the new NORDICTRACK®
GX 3.9 SPORT exercise bike. Cycling is an effective
exercise for increasing cardiovascular fitness, building
endurance, and toning the body. The GX 3.9 SPORT
exercise bike provides a selection of features designed
to make your workouts at home more effective and
enjoyable.
For your benefit, read this manual carefully before
you use the exercise bike. If you have questions after
Length: 3 ft. 9 in. (114 cm)
Width: 1 ft. 8 in. (51 cm)
Resistance Knob
Saddle
reading this manual, please see the front cover of this
manual. To help us assist you, note the product model
number and serial number before contacting us. The
model number and the location of the serial number
decal are shown on the front cover of this manual.
Before reading further, please familiarize yourself with
the parts that are labeled in the drawing below.
Console
Handlebar
Adjustment Knob
Adjustment Knobs
Pedal/Strap
Leveling Foot
Wheel
Leveling Foot
5
ASSEMBLY
• Assembly requires two persons.
• Place all parts in a cleared area and remove the
packing materials. Do not dispose of the packing
materials until you nish all assembly steps.
• Left parts are marked “L” or “Left” and right parts
are marked “R” or “Right.”
1. Go to my.nordictrack.com on your computer
and register your product.
• documents your ownership
• activates your warranty
• ensures priority customer support if assistance
is ever needed
Note: If you do not have internet access, call
Customer Care (see the front cover of this
manual) and register your product.
• In addition to the included tool(s), assembly
requires the following tool(s):
one adjustable wrench
one rubber mallet
Assembly may be easier if you have a set of
wrenches. To avoid damaging parts, do not use
power tools.
1
2. If there are shipping tubes (not shown) attached
to the front and rear of the Frame (1), remove
and discard the shipping tubes and the hardware
attaching them.
Orient the Front Stabilizer (4) as shown.
Attach the Front Stabilizer (4) to the Frame (1)
with two M8 x 55mm Carriage Bolts (9), two M8
Washers (3), and two M8 Flange Nuts (2).
2
2
3
1
4
9
6
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