ProForm 831.21521.0 User Manual
Model No. 831.21521.0
Serial No.
BIKE EXERCISER
Serial
Number
Decal
• Assembly
• Operation
• Maintenance
• Part List and Drawing
User’s Manual
CAUTION
Read all precautions and instructions in this manual before using
this equipment. Keep this manual
for future reference.
Sears, Roebuck and Co., Hoffman Estates, IL
60179
TABLE OF CONTENTS
IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
HOW TO OPERATE THE EXERCISE CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
AINTENANCE AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
M
CONDITIONING GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
PART LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
EXPLODED DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
FULL 90 DAY WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
IMPORTANT PRECAUTIONS
WARNING:
tions before using the exercise cycle.
1. Read all instructions in this manual and all
warnings on the exercise cycle before using
the exercise cycle. Use the exercise cycle
only as described in this manual.
2. It is the responsibility of the owner to ensure
that all users of the exercise cycle are adequately informed of all precautions.
3. The exercise cycle is intended for home use
only. Do not use the exercise cycle in
a commercial, rental, or institutional setting.
4. Keep the exercise cycle indoors, away from
moisture and dust. Place the exercise cycle
on a level surface, with a mat beneath it to
protect the floor. Make sure that there is
enough clearance around the exercise cycle
to mount, dismount, and use it.
5. Inspect and properly tighten all parts regularly. Replace any worn parts immediately.
6. Keep children under the age of 12 and pets
away from the exercise cycle at all times.
To reduce the risk of serious injury, read the following important precau-
7. The exercise cycle should not be used by
persons weighing more than 250 pounds.
8. Wear appropriate clothes when exercising;
do not wear loose clothes that could become
caught on the exercise cycle. Always wear
athletic shoes for foot protection.
9. The pulse sensor is not a medical device.
Various factors, including the user's movement, may affect the accuracy of heart rate
readings. The pulse sensor is intended only
as an exercise aid in determining heart rate
trends in general.
10. Always keep your back straight when using
the exercise cycle; do not arch your back.
11. If you feel pain or dizziness while exercising,
stop immediately and cool down.
12. The exercise cycle does not have a freewheel; the pedals will continue to move until
the flywheel stops.
WARNING:Before beginning this or any exercise program, consult your physician. This
is especially important for persons over the age of 35 or persons with pre-existing health problems.
Read all instructions before using. Sears assumes no responsibility for personal injury or property
damage sustained by or through the use of this product.
2
BEFORE YOU BEGIN
Congratulations for selecting the new PROFORM®GR
0 exercise cycle. Cycling is one of the most effective
8
xercises for increasing cardiovascular fitness, building
e
endurance, and toning the body. The GR 80 exercise
cycle offers a selection of features designed to let you
enjoy this healthful exercise in the convenience and
privacy of your home.
For your benefit, read this manual carefully before
you use the exercise cycle. If you have questions
Fan
Console
after reading this manual, please call 1-800-4-MY-
®
OME
H
lease note the product model number and serial
p
number before calling. The model number is
831.21521.0. The serial number can be found on a
decal attached to the exercise cycle (see the front
cover of this manual).
Before reading further, please familiarize yourself with
the parts that are labeled in the drawing below.
1-800-469-4663). To help us assist you,
(
Pulse Sensor
FRONT
Pedal/Strap
Seat
Adjustment Knob
Handlebar
Wheel
REAR
CAUTION: The warning decal shown above has been placed on the exercise cycle in the
location shown. If the decal is missing, or if it is not legible, call toll-free 1-888-533-1333 and
order a free replacement decal. Apply the decal in the location shown.
RIGH
T SIDE
3
ASSEMBLY
M10 x 75mm Carriage Bolt (51)–4
M10 Nylon
Locknut (63)–4
M8 Nylon
Locknut (60)–4
M8 Split
Washer (59)–5
M
M6 Washer
(55)–8
M6 x 38mm Button
Bolt (48)–4
M6 x 42mm Button
Screw (49)–4
M8 x 25mm Button
Screw (33)–3
M8 x 70mm Button
Bolt (54)–2
M4 x 16mm
Round Head
Screw (52)–4
Assembly requires two persons. Place all parts of the exercise cycle in a cleared area and remove the packing
aterials. Do not dispose of the packing materials until assembly is completed.
m
In addition to the included tools, assembly requires a Phillips screwdriver and two
adjustable wrenches .
Use the drawings below to identify the small parts used for assembly. The number in parentheses below each
drawing is the key number of the part, from the PART LIST on page 14. The number following the key number is
the quantity needed for assembly.
the parts bag, check to see if it has been pre-assembled. If a part is missing, call toll-free 1-888-533-1333.
Note: Some small parts may have been pre-assembled. If a part is not in
4
1. While another person lifts the front of the Frame (1)
slightly, attach the Front Stabilizer (3) to the Frame
ith two M10 x 75mm Carriage Bolts (51) and two
w
M10 Nylon Locknuts (63).
See the inset drawing. Loosen the Adjustment Knob
(17), slide the Rear Frame (2) out of the Frame (1),
and then retighten the Adjustment Knob.
1
51
3
1
Note: After the exercise cycle is assembled, adjust the
Seat (not shown) to the proper position. As you pedal,
there should be a slight bend in your knees when the
pedals are in the farthest forward position. Loosen the
Adjustment Knob (17), slide the Rear Frame (2) forward or backward, and retighten the Adjustment Knob.
2. Attach the Wheels (18) to the Rear Stabilizer (4) with
two M8 Nylon Locknuts (60). Press a Wheel Cap (19)
onto each Wheel.
Attach the Rear Stabilizer (4) to the Rear Frame (2)
with two M10 x 75mm Carriage Bolts (51) and two
M10 Nylon Locknuts (63).
3. Attach one of the Seat Frames (7) to the Handlebar
(6) with an M8 x 70mm Button Bolt (54), an M8 Split
Washer (59), and an M8 Nylon Locknut (60). Do not
tighten the Button Bolt yet.
17
1
2
2
63
2
63
60
19
3
18
54
59
63
19
60
4
18
51
Attach the other Seat Frame (7) in the same way.
Slide the Seat Frame Top (8) onto the Seat Frames
4.
Attach the Backrest (5) to the Seat Frames and
(7).
the Seat Frame Top with four M6 x 38mm Button
Screws (48) and four M6 Washers (55). Do not tight-
en the Button Screws yet.
7
6
60
4
8
5
55
48
55
7
48
5
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