ET520D
OWNERS MANUAL
QUESTIONS?
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Keys Fitness Helpline
1-888-340-0482
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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 manu-
al for future reference.
Keys Fitness Products, L.P.
4009 Distribution Dr.
Suite 250
Dallas, Texas 75355-1239
Garland, Texas 75041
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Before You Start
Safety Precautions and Tips
It is the owner's responsibility to ensure that all users
of this exercise unit have read the Owner's Manual and
are familiar with warnings and safety precautions.
Thank you for purchasing a Keys exercise unit! This quality
product you have chosen was designed to meet your needs for
cardiovascular exercise.
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 illustra-
tions.
• This exercise unit has a user maximum capacity of 275
pounds.
• The CardioMax Elliptical Trainer 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 recom-
mends an exercise equipment mat be placed under the unit
to protect the floor or carpet and for easier cleaning.
Important Safety Information
WARNING!
• Wear comfortable, good-quality walking or running shoes
and appropriate clothing. Do not use this exercise unit with
bare feet, sandals, socks or stockings!
1) Before using this exercise unit or starting any exercise
program, consult your physician. This is especially impor-
tant 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 unit before using to ensure all parts
are in working order.
• Do not leave children unsupervised near or on the
exercise unit.
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 unit should only be per-
formed 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
24
1
Front Stabilizer
Main Frame
64 L, R
38
Handlebars Post
Handlebars
67L, R
10
Handlebar
Sleves
Foot Pedal Mount Tubes
57
29
54
Rear Stabilizer
Computer Console
Tension Knob
4
5
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2. Attach the Rear Stabilizer (29) onto the Main Frame (1) using
Assembly of CardioMax Dual Action
Elliptical Trainer
Carriage Screws (26), Cap Nuts (28) and Arc Washers (27).
REMOVE ALL SECURITY TAPE AND
WRAPPING BEFORE BEGINNING.
1. Attach Front Stabilizer (24) onto the Main Frame (1) using
Carriage Screws (26), Cap Nuts (28) and Arc Washers (27).
1
2
6
7
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3a. Mount Foot Pedals (14) to Pedal Arm (10) with Screws (15),
4. Connect the Monitor Cable (51) in the Handlebar Post (38) to
the Monitor Cable (50) in the Main Frame (1). Slide the
Tension Cord (53) up into the Handlebar Post (38). Connect
the Handlebar Post (38) to the Main Frame (1) using Screws
(52) and Washers (27)
Washers (16) and Nylon locknut (17).
3a
3. Slide the Bolts (12, 13) through the hole of the Foot Pedal
Mount Tubes (10) and screw into the Crank (7). Must screw
on counter clockwise. Secure both Bolts (12, 13) with Nuts
(6a, 6b). Do not forget to place the Plastic Spacer (9) in
first.(See 3a above).
4
3
8
9
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5. Connect the Monitor Cable (51) to the Computer (57) and
secure the Computer with the Screws (56) already in the back
of the Computer. Pull the Tension Cable (53) out of the
Handlebar Post (38) and connect to the Tension Knob (54) as
in Steps 1 and 2:
6. Connect the Left Handlebar (64L) to the Left Handlebar Sleeve
(67L) with Bolts (69), Washers (70) and Cap Nuts (71). Then
slide the entire Left Handlebar Assembly onto the Handlebar
Post (38) and secure with Washer (72) and Nut (6a). Once
tightened, slide on the Plastic Cap (73) to cover the nut. Attach
the Left Connect Tube (74L) to the bottom of the Left
Handlebar Assembly using Screw (77), Washers (21) and Nut
(39). Once tightened, slide on the Plastic Cap (78) to cover the
nut.
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.
Repeat step 6 on the right side of the unit.
64L
Insert the Tension Knob
(54) into the Upright Post
(38) and connect with the
screw attached (55).
38
6
74L
These two parts are
already connected
5
10
11
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520R 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
4
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 ARC WASHER
52 SEAT
53 NUT M8
19 WASHER
54 EXTENSION WIRE
55 HEX BOLT M8*15
56 UPRIGHT POST
57 SCREW M5*
20 END CAP
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
28 AXLE
62 HANDLEBAR
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
12
13
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Console Functions
Your bike is equipped with a programmable monitor to help you
track your progress and motivate you to reach your fitness goals.
This monitor provides different programs tailored to your
fitness goals. Simply choose the program you like; set the time
limit and begin exercising. Your monitor will then show your
pulse, approximate calories burned, elapsed time, speed and
distance traveled.
One Touch Operation
Flip through the menu options as seen in the screen with each
touch, until you reach the desired menu.
Reset/Erase
Hold the button down until the values reach 00 (approx. 4 Sec.).
Auto ON/OFF Function
The computer starts automatically when you begin training
Individual Functions
Time
Indicates elapsed time after pressing start in minutes and seconds
(0-99 minutes, 0-59 seconds).
Speed
Indicates MPH (miles per hour).
Distance
Displays the cumulative distance traveled during each workout up
to a maximum of 99.9 miles. The distance will be displayed in
hundredths of a mile until you reach 10 miles. Then distance will
be displayed in tenths of a mile. Example 0.00 - 9.99, then 10.0 -
99.99 miles.
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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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.
TARGET HEART RATE ZONE
200
195
Fitness Safety
100%
190
185
180
175
170
165
160
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
155
132
85%
170
166
162
157
153
149
145
140
136
Cardiovascular
conditioning
range
(MHR) = Maximum Heart Rate
150
146
75%
143
139
135
(THR) = Target Heart Rate
131
128
124
120
Fat burning
range
116
93
220 - age = maximum heart rate (MHR).
60%
120
117
114
111
108
105
MHR x .60 = 60% of your maximun heart rate.
MHR x .75 = 75% of your maximum heart rate.
102
99
96
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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