520
Upright
OWNER’S MANUAL
QUESTIONS?
Call Our Toll Free
Keys Fitness Helpline
1-888-340-0482
1-888-340-0482
Monday-Friday
8:30-5:30 Central Time
CAUTION!
Keys Fitness Products, L.P.
P.O. Box 551239
Please read the precautions and
instructions in this manual before
using this equipment. Please save
this manual for future reference.
Keys Fitness Products, L.P.
4009 Distribution Dr.
Suite 250
Dallas, Texas 75355-1239
Garland, Texas 75041
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Safety Precautions and Tips
Before You Start
Thank you for purchasing a Keys exercise bicycle! This quality
product you have choosen was designed to meet your needs for
cardiovascular exercise.
It is the owner's responsibility to ensure that all users of this
exercise bike have read the Owner's Manual and are familiar with
warnings and safety precautions.
Prior to assembly, remove components from the box and verify
that all the listed parts were supplied. Assembly instructions are
described in the following steps and illustrations.
• This exercise bike has a user maximum capacity of 250 pounds.
• The CardioMax Exercise bike should only be used on a level
surface and is intended for indoor use only. It should not be
placed in a garage, patio or near water. Keys recommends a
bicycle mat be placed under the bicycle to protect floor or car-
pet and for easier cleaning.
Important Safety Information
WARNING!
• Wear comfortable, good-quality walking or running shoes
and appropriate clothing. Do not use this exercise bike with
bare feet, sandals, socks or stockings!
1) Before using this exercise bicycle or starting any
exercise program, consult your physician. This is especially
important for persons over the age of 35 and/or persons
with pre-existing health problems. Keys Fitness Products
LP assumes no responsibility for personal injury or property
damage sustained by or through the use of this product.
• Always examine your exercise bike before using to ensure all
parts are in working order.
• Do not leave children unsupervised near or on the
exercise bicycle.
2) To reduce the risk of electrical shock, burns, fire or other
possible injuries to the user, it is important to review
this manual and the following precautions before operation.
• Never operate the exercise bicycle where oxygen is being
administered or where aerosol products are being used.
• Never insert any object or body parts into any opening.
• Service to your CardioMax exercise bike should only be
performed by an authorized service representative, unless
authorized and/or instructed by a Keys technician. Failure
to follow these instructions will void the warranty.
2
3
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Assembly Parts
Assembly Accessories
M8 Cap Nut No.18, 4 ea.
M8x70 Carriage Bolt No.17, 4 ea.
Hexa -- fube Wrench
Screw Driver
MAIN FRAME No.1
FRONT STABILIZER No.21 REAR STABILIZER .No.15
8 x 19 Arc Washer No.19, 10 ea.
PEDALS,
SEAT POST No.49
SEAT No.52
(L) N0.13, (R) N0.14,
M8x15mm Screw No.55, 6 ea.
TENSION CONTROLLER
TENSION CABLE No.59
PLASTIC BELLOWS No.70
No.58
Allen Wrench
HANDLEBAR POST No.56
COMPUTER No.61
HANDLEBAR No.62
4
5
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Assembly of CM520 Exercise Bike
2. Attach Right and Left Pedals (13, 14) to the Pedal Crank (9).
Axles of the pedals are branded “L” and “R.” The pedal
marked “R” goes on the right hand side of the bike and the one
marked “L” on the left hand side. Tighten the left pedal
by turning counter-clockwise and the right pedal by turning
clockwise.
REMOVE ALL SECURITY TAPE AND WRAPPING
BEFORE BEGINNING.
1. Attach Front Stabilizer (21) and Rear Stabilizer (15) to the
Main Frame (1) using carriage Bolts (17), Washers (19) and
Nuts (18).
3
1
9
17
18
19
21
19
1
18
15
17
14, 13
6
7
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4. Slide the Plastic Bellow (70) (optional) onto the Seat Post (49).
Then insert the Seat Post (49) into the Main Frame (1). Use the
Seat Adjustment Knob (47) to adjust to the desired seat height.
3. Attach the Seat (52) to the Seat Post (49) with the Nuts (50)
and Washers (51) provided.
3
4
50
49
51
51
70
49
50
47
52
8
9
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5. Connect the Extension Wire (54) in the Upright Post (56) to
the Sensor Wire (45) in the Main Frame (1). Slide the Tension
Cable (59) from the Main Frame (1) up through the Upright
Post (56). Connect the Upright Post (56) to the Main Frame
(1) using Hex Bolts (55) and Arc Washers (19).
6. Pull the Tension Cable (59) out of the Upright Post (56) and
connect to the Resistance Knob (58) as in Steps 1 and 2:
Step 1: Put the Tension Controller cable end into the spring
hook.
Step 2: Pull the Tension Controller cable into the gap of
the bracket. Insert the Tension Controller (58) into
the Upright Post (56) and connect with the screw
attached (57).
5
56
55
19
54
55
59
58
19
57
6
54
45
56
59
59
59
58
58
10
11
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7. Connect the computer cable at the top of the Upright Tube
(54) to the Computer (61). Attach the Computer (61) to the
Upright Post (56) with the screws attached. Open the battery
cover on the back of the computer and install 2 AA batteries.
8. Connect the Handlebar (62) to the Upright Post (56) with the
Hex Bolts (55) and Arc Washers (19).
7
8
61
62
54
60
19
55
56
battery cover
56
2 AA Batteries
12
13
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CM520 Exercise Bike Parts List
NO.
PART
QTY
NO.
PART
QTY
1
2
3
4
5
6
7
8
9
MAIN FRAME
1
2
2
1
1
2
1
1
1
1
1
1
1
1
1
2
4
4
10
2
1
1
1
1
1
3
1
1
1
5
2
2
1
1
1
36 HEX BOLT 3/8"*26
37 WASHER
2
1
1
1
1
1
1
1
1
1
1
1
1
1
3
3
1
1
1
6
1
1
1
1
2
1
1
2
2
2
4
3
1
1
1
BEARING HOUSING
BALL BEARINGS
INSIDE BEARING COLLAR
WASHER
38 IDLER ARM
39 NYLOCK NUT 3/8"
40 IDLER WHEEL SPACER
41 IDLER WHEEL
42 TENSION SPRING
43 WASHER
HEX NUT
OUTSIDE BEARING COLLAR
WASHER
CRANK
44 NYLOCK NUT M10
45 SENSOR WIRE
46 SCREW M3*10
47 SEAT ADJUSTMENT KNOB
48 PORT SUPPORT BUSHING
49 SEAT POST
10 MAGNET
11 BELT
12 PULLEY
13 RIGHT PEDAL
14 LEFT PEDAL
15 REAR STABILIZER
16 HEIGHT REGULATOR
17 CARRIAGE BOLT M8*70
18 NUT M8
50 NYLOCK NUT M8
51 WASHER
52 SEAT
53 NUT M8
19 ARC WASHERS
20 END CAP
54 EXTENSION WIRE
55 SCREW M8X15
56 UPRIGHT POST
57 SCREW M5*
21 FRONT STABILIZER
22 NUT 3/8"
23 WASHER
58 RESISTANCE KNOB
59 TENSION CABLE
60 SCREWM5*10
61 COMPUTER
24 BC NUT 3/8"
25 SPACER
26 BEARINGS
27 FLY WHEEL
62 HANDLEBAR
28 AXLE
63 FOAM GRIP
29 GREASED BEARING
30 WASHER
64 HANDLEBAR CAP
65 CRANK CAP
31 NYLOCK NUT M8
32 GHEX BOLTM8*60
33 MAGNETIC PLATE
34 MAGNETIC SPRING
35 IDLER SPRING
66 SCREW
67 ROUND HEAD SCREW
68 LEFT COVER
69 RIGHT COVER
70 PLASTIC BELLOWS
14
15
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Monitoring Your Heart Rate
Console Functions
Please see insert for LCD console display instructions.
To obtain the greatest cardiovascular benefits from your exer-
cise workout, it is important to work within your target heart
rate zone. The American Heart Association (AHA) defines this
target as 60%-75% percent of your maximum heart rate.
Troubleshooting:
Should at any point your computer display partial values or
numbers, it may require you to remove the batteries for approx
15 second, then replace them.
Your maximum heart rate may be roughly calculated by
subtracting your age from 220. Your maximum heart rate and
aerobic capacity naturally decreases as you age. This may vary
from one person to another, but use this number to find your
approximate effective target zone. For example, the maximum
heart rate for an average 40 year-old is 180 bpm. The target
heart rate zone is 60%-75% of 180 or 108-135 bpm. See Fitness
Safety on page 18.
Batteries:
On the rear side of the computer you will find a door leading to
the batteries. Use 2 (1.5 volt AA/Mignon -- Included ), always
beware of the correct polling of positive and negative. Removing
the batteries sets all values to 0.
Before beginning your workout, check your normal resting
heart rate. Place your fingers lightly against your neck, or against
your wrist over the main artery. After finding your pulse, count
the number of beats in 10 seconds. Multiply the number of beats
by six to determine your pulse rate per minute. We recommend
taking your heart rate at these times; at rest, after warming up,
during your workout and two minutes into your cool down, to
accurately track your progress as it relates to better fitness.
Old Batteries:
Used batteries do not belong in the trash. Please dispose of your
batteries in a responsible manner, as a consumer you are legally
responsible for seeking out your neighborhood collection/disposal
location. Often you will find them where batteries are sold.
Remember to make sure that they are empty and that there is no
risk of short circuit.
During your first several months of exercising, the AHA
recommends aiming for the lower part of the target heart rate
zone- 60%, then gradually progressing up to 75%.
According to the AHA, exercising above 75% of your maxi-
mum heart rate may be too strenuous unless you are in top physi-
cal condition. Exercising below 60% of your maximum will result
in minimal cardiovascular conditioning.
16
17
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Target Heart Rate Zone
Check your pulse recovery rate – If your pulse is over 100 bpm
five minutes after you stop exercising, or if it’s higher than
normal the morning after exercising, your exertion may have
been too strenuous for your current fitness level. Rest and reduce
the intensity next time.
200
Fitness Safety
195
190
185
180
175
170
165
100%
The target heart rate chart indicates average rate zones for different
ages. A variety of different factors (including medication, emotional
state, temperature and other conditions) can affect the target heart rate
zone that is best for you. Your physician or health care professional can
help you determine the exercise intensity that is appropriate for your
age and condition.
Serious
athletic
training range
160
155
132
85%
170
150
166
162
157
153
149
145
140
Cardiovascular
conditioning
range
136
120
96
(MHR) = Maximum Heart Rate
75%
146
143
139
135
(THR) = Target Heart Rate
131
128
124
Fat burning
range
116
93
220 - age = maximum heart rate (MHR).
60%
120
117
114
111
108
105
MHR x .60 = 60% of your maximum heart rate.
MHR x .75 = 75% of your maximum heart rate.
102
99
For example, if you are 30 years old, your
calculations will be as follows:
20
25 30
35
40 45
50
55 60 65
AGE
220 - 30 = 190
190 x .60 = 114 (low end or 60% of MHR)
190 x .75 = 142 (high end or 75% of MHR)
For a 30 year-old the (THR) Target Heart Rate
would be 114-142.
See Table on right for additional calculations.
18
19
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