Pro-Form GR 80 User manual

CAUTION
Read all precautions and instruc-
tions in this manual before using
this equipment. Keep this manual
for future reference.
Serial
Number
Decal
Model No. 831.21521.2
Serial No.
• Assembly
• Operation
• Maintenance
• Part List and Drawing
Sears, Roebuck and Co., Hoffman Estates, IL 60179
BIKE EXERCISER
User’s Manual

2
TABLE OF CONTENTS
WARNING DECAL PLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
HOW TO OPERATE THE EXERCISE CYCLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
MAINTENANCE AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
EXERCISE GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
PART LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
EXPLODED DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
ORDERING REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
90 DAY FULL WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
WARNING DECAL PLACEMENT
The warning decal shown here has been
applied in the location shown. If the
decal is missing or illegible, call
1-888-533-1333 and request a free
replacement decal. Apply the decal in
the location shown. Note: The decal
may not be shown at actual size.

3
1. Before beginning any exercise program, con-
sult your physician. This is especially impor-
tant for persons over the age of 35 or per-
sons with pre-existing health problems.
2. It is the responsibility of the owner to ensure
that all users of the exercise cycle are ade-
quately informed of all precautions.
3. Your exercise cycle is intended for home use
only. Do not use your exercise cycle in a
commercial, rental, or institutional setting.
4. Keep your exercise cycle indoors, away from
moisture and dust. Place your exercise cycle
on a level surface, with a mat beneath it to
protect the floor or carpet. Make sure that
there is enough clearance around your exer-
cise cycle to mount, dismount, and use it.
5. Inspect and properly tighten all parts regu-
larly. Replace any worn parts immediately.
6. Keep children under age 12 and pets away
from your exercise cycle at all times.
7. Your exercise cycle should not be used by
persons weighing more than 250 lbs.
(113 kg).
8. The pulse sensor is not a medical device.
Various factors, including the user's move-
ment, 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.
9. Wear appropriate exercise clothes while
exercising; do not wear loose clothes that
could become caught on your exercise cycle.
Always wear athletic shoes for foot protec-
tion while exercising.
10. Keep your back straight while using your
exercise cycle; do not arch your back.
11. When you stop exercising, allow the pedals
to slowly come to a stop.
12. If you feel pain or dizziness while exercising,
stop immediately and cool down.
13. Use your exercise cycle only as described in
this manual.
WARNING: To reduce the risk of serious injury, read all important precautions and
instructions in this manual and all warnings on your exercise cycle before using your exercise
cycle. Sears assumes no responsibility for personal injury or property damage sustained by or
through the use of this product.
IMPORTANT PRECAUTIONS

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Congratulations for selecting the new PROFORM®GR
80 exercise cycle. Cycling is one of the most effective
exercises for increasing cardiovascular fitness, build-
ing endurance, and toning the body. The GR 80 exer-
cise 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
after reading this manual, please see the back 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.
Seat
Adjustment Knob
Pedal/Strap
Console Pulse Sensor
Wheel
Fan
Handlebar
BEFORE YOU BEGIN

5
ASSEMBLY
Assembly requires two persons. Place all parts of the exercise cycle in a cleared area and remove the
packing materials. Do not dispose of the packing materials until assembly is completed.
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 near the end of this manual. The number following
the key number is the quantity needed for assembly. Note: Some small parts may have been preassembled.
If a part is not in the hardware kit, check to see if it has been preassembled. If a part is missing, call
1-888-533-1333.
M10 x 75mm Carriage Bolt (51)–4
M10 Nylon
Locknut (63)–4
M8 Nylon
Locknut (60)–4
M8 Split
Washer (59)–5
M6 Washer
(55)–8
M6 x 38mm Button
Screw (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

6
3. Attach the Seat Frame (7) to the Handlebar (6) with
two M8 x 70mm Button Bolts (54), two M8 Split
Washers (59), and two M8 Nylon Locknuts (60). Do
not tighten the Button Bolts yet.
1.
While another person lifts the front of the Frame (1)
slightly, attach the Front Stabilizer (3) to the Frame
with two M10 x 75mm Carriage Bolts (51) and two
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.
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.
3
63
51
1
1
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).
51
18
4
19
60
18
19
2
63
63
60
2
3
17
2
1
76
60
54
59
59
To make assembly easier, read the information
on page 5 before you begin assembling the
exercise cycle.

7
4. Attach the Backrest (5) to the Seat Frame (7) with
four M6 x 38mm Button Screws (48) and four M6
Washers (55). Do not tighten the Button Screws
yet.
4
5
7
55
55
48
48
12
55
55
55 7
5
49
2
49
5. Have another person hold the Seat Frame (7) under
the Rear Frame (2) as shown. Attach the Seat
Frame and the Seat (12) to the Rear Frame with
four M6 x 42mm Button Screws (49) and four M6
Washers (55).
See step 3. Tighten the two M8 x 70mm Button
Bolts (54).
See step 4. Tighten the four M6 x 38mm Button
Screws (48).

8
7. Connect the console wire harness to the Upper
Wire Harness (36). Insert the console wire harness
into the Upright (13). Attach the Console (16) to the
Upright with four M4 x 16mm Round Head Screws
(52).
7
16
13
36
Console
Wire
Harness
52
6
Tab
Battery Door
Batteries
16
6. The Console (16) requires four “D” batteries (not
included); alkaline batteries are recommended.
IMPORTANT: If the exercise cycle has been
exposed to cold temperatures, allow it to warm
to room temperature before inserting batteries
into the Console. If you do not do this, the con-
sole displays or other electronic components
may become damaged. Press the tab on the bat-
tery door and remove it. Insert four batteries into
the Console as shown. Make sure that the batter-
ies are oriented as shown by the markings on
the battery door. Reattach the battery door.
13
36
8
8. Connect the Upper Wire Harness (36) to the Lower
Wire Harness (8). Attach the Upright (13) to the
Frame (1) with three M8 x 25mm Button Screws
(33) and three M8 Split Washers (59). Be careful
to avoid pinching the Wire Harnesses.
8
33
33
33
59 59
1

9
9
25
24
Tab
31
10. Make sure that all parts are properly tightened before you use the exercise cycle. Note: After assembly is
completed, some extra parts may be left over. Place a mat beneath the exercise cycle to protect the floor.
9. Identify the Left Pedal (24), which is marked with an
“L.” Using an adjustable wrench, firmly tighten the
Left Pedal
counterclockwise into the left arm of the
Crank (31). Tighten the Right Pedal (not shown)
clockwise into the right arm of the Crank. IMPOR-
TANT: Tighten both Pedals as firmly as possible.
After using the exercise cycle for one week,
retighten the Pedals. For best performance, the
Pedals must be kept tightened.
Adjust the Left Pedal Strap (25) to the desired posi-
tion, and press the end of the Left Pedal Strap onto
the tab on the Left Pedal (24). Adjust the Right
Pedal Strap (not shown) in the same way.

10
HOW TO OPERATE THE EXERCISE CYCLE
FEATURES OF THE CONSOLE
The advanced console offers a selection of features
designed to make your workouts more enjoyable and
effective. When the manual mode of the console is
selected, the resistance of the pedals can be changed
with the touch of a button. As you pedal, the console
will provide continuous exercise feedback. You can
even measure your heart rate using the built-in hand-
grip pulse sensor.
In addition, the console features two pulse programs
that change the resistance of the pedals and help you
to maintain a steady pedaling pace to keep your heart
rate near a target heart rate setting while you exer-
cise.
The console also offers two preset programs. Each
program automatically changes the resistance of the
pedals and prompts you to increase or decrease your
pedaling pace as it guides you through an effective
workout.
To use the manual mode of the console, see the
instructions at the right. To use a pulse program, see
page 10. To use a preset program, see page 11.
Before using the console, make sure that batteries are
installed (see assembly step 6 on page 6). If there is a
sheet of clear plastic on the display, remove the plas-
tic.
HOW TO USE THE MANUAL MODE
1. Turn on the console.
To turn on the console, press the Increase button
or begin pedaling. The pace guide will light for a
moment; the console will then be ready for use.
2. Select the manual mode.
When the power is turned on, the manual mode
will be selected. If you have selected a program,
reselect the manual mode by pressing the
Program/Manual button until no program indicators
(see the drawing above) appear along the left side
of the display.
3. Change the resistance of the pedals as
desired.
As you pedal,
change the resis-
tance of the pedals
by pressing the
Increase and
Decrease buttons.
There are ten resis-
tance levels. Note: After the buttons are pressed, it
will take a moment for the pedals to reach the
selected resistance level.
Fan
Button
Increase
Button
Program/Manual
Button
Program
Indicator
Display Pace
Guide
Decrease
Button
Program
Profiles