Pro-Form 831.283521 User manual

CAUTION
Read all precautions and instruc-
tions in this manual before using
this equipment. Keep this manu-
al for future reference.
Serial
Number
Decal
Model No. 831.283521
Serial No.
Patent Pending
• Assembly
• Operation
• Maintenance
• Part List and Drawing
Sears, Roebuck and Co., Hoffman Estates, IL 60179
ELLIPTICAL EXERCISER
User’s Manual

TABLE OF CONTENTS
IMPORTANT PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
BEFORE YOU BEGIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
HOW TO USE THE ELLIPTICAL CROSSTRAINER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
MAINTENANCE AND TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
CONDITIONING GUIDELINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
PART LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
EXPLODED DRAWING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
HOW TO ORDER REPLACEMENT PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
FULL 90 DAY WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Back Cover
2

3
IMPORTANT PRECAUTIONS
WARNING: To reduce the risk of serious injury, read the following important precau-
tions before using the elliptical crosstrainer.
1. Read all instructions in this manual before
using the elliptical crosstrainer.
2. It is the responsibility of the owner to ensure
that all users of the elliptical crosstrainer are
adequately informed of all precautions.
3. The elliptical crosstrainer is intended for
home use only. Do not use the elliptical
crosstrainer in a commercial, rental, or insti-
tutional setting.
4. Place the elliptical crosstrainer on a level
surface, with a mat beneath it to protect the
floor or carpet. Keep the elliptical crosstrain-
er indoors, away from moisture and dust.
5. Inspect and properly tighten all parts regu-
larly. Replace any worn parts immediately.
6. Keep children under 12 and pets away from
the elliptical crosstrainer at all times.
7. The elliptical crosstrainer should not be used
by persons weighing more than 250 pounds.
8. Wear appropriate exercise clothes when
using the elliptical crosstrainer. Always wear
athletic shoes for foot protection while exer-
cising.
9. Hold the handgrip pulse sensor or the han-
dlebars when mounting, dismounting, or
using the elliptical crosstrainer.
10. The pulse sensor is not a medical device.
Various factors may affect the accuracy of
heart rate readings. The pulse sensor is
intended only as an exercise aid in determin-
ing heart rate trends in general.
11. Keep your back straight when using the ellip-
tical crosstrainer; do not arch your back.
12. If you feel pain or dizziness at any time
while exercising, stop immediately and cool
down.
13. When you stop exercising, allow the pedals
to slowly come to a stop.
14. The decal shown below has been placed on
the elliptical crosstrainer. If the decal is
missing, or if it is not legible, please call toll-
free 1-888-533-1333 and order a free replace-
ment decal. Apply the decal in the location
shown.
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 prob-
lems. Read all instructions before using. Sears assumes no responsibility for personal injury or
property damage sustained by or through the use of this product.

4
BEFORE YOU BEGIN
Congratulations for selecting the new PROFORM®
820 CARDIO CROSSTRAINER. The PROFORM®820
is an incredibly smooth exerciser that moves your feet
in a natural elliptical path, minimizing the impact on
your knees and ankles. And the unique PROFORM®
820 features adjustable resistance and a state-of-the-
art console to help you get the most from your
exercise.
For your benefit, read this manual carefully before
you use the elliptical crosstrainer. If you have
questions after reading this manual, call 1-800-4-MY-
HOME®(1-800-469-4663). To help us assist you,
please note the product model number and serial
number before calling. The model number is
831.283521. The serial number can be found on a
decal attached to the elliptical crosstrainer (see the
front cover of this manual for the location of the decal).
Before reading further, please familiarize yourself with
the parts that are labeled in the drawing below.
Handgrip
Pulse Sensor
Handlebar
FRONT
BACK
LEFT SIDE
Flex Bar
Pedal Disk
*No water bottle is included
Wheel
Pedal
Console
Water Bottle Holder*
Leveling Foot

5
ASSEMBLY
Assembly requires two persons. Place all parts of the elliptical crosstrainer 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 allen wrenches, assembly requires a phillips screwdriver , an adjustable
wrench , and a rubber mallet .
As you assemble the elliptical crosstrainer, use the drawings below to identify the small parts used in assembly.
The number in parenthesis below each drawing refers to the key number of the part, from the PART LIST on
page 22. The second number refers to the quantity needed for assembly. Note: Some small parts may have
been pre-assembled. If a part is not in the parts bag, check to see if it has been pre-assembled. If a part
is missing, call toll-free 1-888-533-1333.
M10 x 112mm Carriage Bolt (34)–4
M10 x 88mm Button Screw (63)–1
M10 x 78mm Button Bolt (27)–2
M4 x 16mm
Screw (66)–4 M10 Nylon
Locknut (29)–6
M8 Nylon
Locknut (46)–4
M10 Split
Washer (70)–3
Frame Spacer (83)–1
M8 x 45mm Button Bolt (50)–4 M10 x 35mm Carriage
Bolt (20)–2
M4 x 22mm
Screw (93)–2
M10
Washer (38)–6
M8.5
Washer (53)–2
Wave Washer
(95)–2
M8 x 25mm Patch
Screw (22)–2

6
1. Identify the Front Stabilizer (3). While another person
lifts the front of the Frame (1), attach the Front
Stabilizer to the Frame with two M10 x 112mm
Carriage Bolts (34) and two M10 Nylon Locknuts (29).
Make sure that the Front Stabilizer is turned so the
Wheels (32) are not touching the floor.
3
29
32
32
34
1
1
2. While another person lifts the back of the Frame (1),
attach the Rear Stabilizer (4) to the Frame with two
M10 x 112mm Carriage Bolts (34) and two M10 Nylon
Locknuts (29).
34
4
1
3
2
86
93
91
87
1
63
83
70
3. While another person holds the Upright (2) in the posi-
tion shown, connect the Upper Wire Harness (86) to
the Lower Wire Harness (87). Carefully pull the
upper end of the Upper Wire Harness to remove
any slack. While holding the upper end of the
Upper Wire Harness, insert the Upright into the
Frame (1). Do not pinch the Wire Harnesses.
Slide an M10 Split Washer (70) and a Frame Spacer
(83) onto an M10 x 88mm Button Screw (63). Insert
the Button Bolt into the Frame (1) and the Upright (2).
Make sure that the concave end of the Frame
Spacer is turned toward the Frame. Do not tighten
the Button Bolt yet.
Attach the Water Bottle Holder (91) to the Upright
(2) with two M4 x 22mm Screws (93).
2
29
29
Make sure the
wire harnesses
do not get
pinched and
damaged during
this step.
4. While another person holds the Console (5) in the
position shown, connect the wire harness on the
Console to the Upper Wire Harness (86). Insert the
excess wire harness into the Upright (2). Next, attach
the Console to the Upright with four M4 x 16mm
Screws (66). Be careful to avoid pinching the wire
harnesses.
5
86
66
66
2
Wire
Harness
4
Make sure the
wire harnesses
do not get
pinched and
damaged during
this step.

7. Hold the lower end of the left Handlebar Leg (79) inside
of the left Front Flex Bracket (17). Apply a small
amount of grease to an M10 x 78mm Button Bolt (27).
Attach the left Handlebar Leg to the left Front Flex
Bracket with the Button Bolt, two M10 Washers (38),
and an M10 Nylon Locknut (29). Do not overtighten
the Nylon Locknut; the left Handlebar Leg must be
able to pivot freely.
Attach the right Handlebar Leg (79) to the right Front
Flex Bracket (17) in the same way.
See step 6. Tighten the M8 x 45mm Button Bolts (50)
in the Handlebar Legs (79). See step 3. Tighten the
M10 x 88mm Button Screw (63).
17
17
27 38
38
29
Grease
7
6. Identify the Left Handlebar (9), which is marked with a
sticker. Insert the Left Handlebar into one of the
Handlebar Legs (79); make sure that the Handlebar
Leg is turned so the hexagonal holes are on the
indicated side. Attach the Left Handlebar to the
Handlebar Leg with two M8 x 45mm Button Bolts (50)
and two M8 Nylon Locknuts (46). Make sure that the
Nylon Locknuts are inside of the hexagonal holes.
Do not fully tighten the Button Bolts yet.
Apply a generous amount of the included grease to the
Pivot Axle (97) and to the two M8.5 Washers (53). Insert
the Pivot Axle into the Upright (2) and centre it. Reapply
grease to both ends of the Pivot Axle.
Slide a Handlebar Spacer (25) onto the short tube on the
Left Handlebar (9), and rotate the Handlebar Spacer so
the arrow is pointing toward the floor. Then, slide the Left
Handlebar onto the Pivot Axle (97). Make sure that the
Left Handlebar is on the correct side. Turn an M8 x
25mm Patch Screw (22) with an M8.5 Washer (53) and
a Wave Washer (95) into the end of the Pivot Axle.
Attach the Right Handlebar and the other Handlebar Leg
(not shown) to each other and the Pivot Axle (97) in the
same way. Next, tighten the two M8 x 25mm Patch
Screws (22) into the Pivot Axle. Press the small tabs on
the Handlebar Caps (23) into the two Handlebar Spacers
(25).
Grease
Tube
Arrow
6
7
97
25
9
2
23
22
53
50
46
Hexagonal
Holes
79
95
79
79
5. The Console (5) requires four “D” batteries (not includ-
ed); alkaline batteries are recommended. Remove the
indicated screw from the battery drawer, and pull the
battery drawer open. Insert four batteries into the bat-
tery drawer; make sure that the batteries are orient-
ed as shown by the markings inside the battery
drawer. Close the battery drawer and reattach the
screw. Note: When the batteries are installed correctly,
the fan will turn on for a moment.
Battery
Drawer
5Batteries
Screw
5

8
9. Make sure that all parts of the elliptical crosstrainer are properly tightened. Note: Some hardware may
be left over after assembly is completed. To protect the floor or carpet from damage, place a mat under the
elliptical crosstrainer.
8
20
15
38
14
13
70
8. Identify the Left Pedal (13). Attach the Left Pedal to the
left Flex Bar (14) with an M10 x 35mm Carriage Bolt
(20), an M10 Washer (38), an M10 Split Washer (70),
and a Pedal Knob (15) as shown. Note: The Left Pedal
can be attached in any of five positions (see HOW TO
ADJUST THE PEDALS on page 9).
Attach the Right Pedal (not shown) in the same way.
Make sure that both Pedals are in the same position.

9
HOW TO USE THE ELLIPTICAL CROSSTRAINER
HOW TO ADJUST THE PEDALS
The motion of the
pedals is deter-
mined by their
positions on the
flex bars. There
are five positions.
To adjust each
pedal, first loosen
the knob beneath
the pedal. Next,
push the bolt
upward, slide the
pedal forward or backward to the desired position, and
then retighten the knob. Make sure that both pedals
are in the same position.
HOW TO EXERCISE ON THE ELLIPTICAL
CROSSTRAINER
To mount the elliptical crosstrainer, hold the handgrip
pulse sensor and step onto the pedal that is in the low-
est position. Then, step onto the other pedal. Push the
pedals until they begin to move with a continuous
motion. Note: The pedal disks can turn in either
direction. It is recommended that you move the
pedal disks in the direction shown by the arrow
below; however, for variety, you can turn the pedal
disks in the opposite direction.
To dismount the elliptical crosstrainer, wait until the
pedals come to a complete stop. Note: The elliptical
crosstrainer does not have a free wheel; the ped-
als will continue to move until the flywheel stops.
When the pedals are stationary, step off the highest
pedal first. Then, step off the lowest pedal.
HOW TO USE THE HANDLEBARS
The handlebars are
designed to add
upper-body exer-
cise to your work-
outs. Push and pull
the handlebars as
you exercise to
work your arms,
shoulders, and
back.
To exercise only
your lower body,
hold the handgrip
pulse sensor as
you exercise.
CAUTION: Before using the ellipti-
cal crosstrainer, read the following precau-
tions.
• Always hold the handgrip pulse sensor or the
handlebars when mounting, dismounting, or
using the elliptical crosstrainer.
• When you stop exercising, allow the pedals to
slowly come to a stop.
• The pulse sensor is not a medical device.
Various factors may affect the accuracy of
heart rate readings. The pulse sensor is
intended only as an exercise aid in determin-
ing heart rate trends in general.
Pedals
Pedal Disk
Handlebars
Handgrip
Pulse Sensor
Handlebars Handgrip
Pulse
Sensor
Knob
Pedal
Bolt Flex Bar

10
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.
The console also offers four Smart programs. Each pro-
gram automatically changes the resistance of the ped-
als and prompts you to increase or decrease your pace
as it guides you through an effective workout.
In addition, the console features two Heart Rate pro-
grams that change the resistance of the pedals and
prompt you to vary your pace to keep your heart rate
near a target heart rate as you exercise.
The console also features iFIT.com interactive technol-
ogy. Having iFIT.com technology is like having a per-
sonal trainer in your home. Using a stereo audio cable
(available at electronics stores), you can connect the
elliptical crosstrainer to your home stereo, portable
stereo, computer, or VCR and play special iFIT.com CD
and video programs (iFIT.com CDs and videocassettes
are available separately). iFIT.com CD and video pro-
grams automatically control the resistance of the ped-
als and prompt you to vary your pace as a personal
trainer coaches you through every step of your work-
out. High-energy music provides added motivation. To
purchase iFIT.com CDs and videocassettes, call
toll-free 1-888-533-1333.
With the elliptical crosstrainer connected to your com-
puter, you can also go to our Web site at www.iFIT.com
and access programs directly from the internet.
Explore www.iFIT.com for more information.
To use the manual mode of the console, see page
11. To use a Smart program, see page 13. To use a
Heart Rate program, see page 14. To use an
iFIT.com CD or videocassette, see page 18. To use
a program directly from our Web site, see page 19.
Display Buttons
Fan Button
On/Reset Button
Resistance Buttons