ET850D
OWNER’S MANUAL
QUESTIONS?
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CAUTION!
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.
P.O. Box 551239
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
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 Elliptical Trainer! 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 illustrations.
• This ellptical trainer has a user maximum capacity of
300 pounds.
• The Keys Elliptical Trainer should only be used on a level sur-
face and is intended for indoor use only. It should not be placed
in a garage, patio or near water. Keys recommends an equip-
ment mat be placed under the unit to protect the floor or carpet
and for easier cleaning.
Important Safety Information
WARNING!
1) Before using this exercise unit 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.
• Wear comfortable, good-quality walking or running shoes and
appropriate clothing. Do not use this exercise unit with bare
feet, sandals, socks or stockings!
• Always examine your elliptical trainer before using to ensure all
parts are in working order.
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.
• Do not leave children unsupervised near or on the exercise unit.
• Never operate the elliptical trainer 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 Keys Elliptical Trainer 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.
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Assembly of CardioMax
850 Elliptical Trainer
REMOVE ALL SECURITY TAPE AND WRAPPING
BEFORE BEGINNING.
1. Attach the Aluminum Extrusions (45) to the Main
Frame Assembly (1) with Screws (63). Connect the
Aluminum Extension Plate (34) between the Extrusions (45)
with Screws (64).
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2. Attach both the Left and Right Rear Foot Frames (32, 33) to
the Left and Right Front Foot Frames (30,31) with Carriage
Bolts (62) and Locknuts (49).
1
4
5
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4
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4. Feed the two Pulse Wires (26) from the Console (5)
down into the Main Upright (2) and out the handlebar
hole. Connect the Controller Wire (28) to the Console (5).
Then connect the Monitor (5) to the Main Upright (2)
with Screws (59).
3. First connect the Controller Extension Wire (27). Then
slide the Main Upright (2) onto the Main Frame Assembly
(1) and secure with Screws (56), Flat Washers (50) and
Locknuts (49).
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5
6
5. First connect the Pulse Wires (26) to the T-Shaped Handlebar
(10). Then connect the T-Shaped Handlebar (10) to the
Main Upright (2) with Screws (55), Flat Washers (50) and
Locknuts (49).
6. Curved Washers (79) should already be on Main Upright
posts. Slide the left and right handlebars (3, 4) onto the
Main Upright (2). Secure handlebars with Washers (61),
Snap Caps (21), Washers (69), Nuts (52), and Nut Caps (22).
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7. Secure the Connecting Arms (29) to the left and right
handlebars (3, 4) with Screws (67), Washers (69),
Caps (68), and Nuts (52).
8. Insert the batteries provided into the back of the Monitor (5)
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9. You have completed the assembly of your CardioMax 850
Elliptical Trainer.
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850 ELLIPTICAL PARTS LIST
NO.
PART
QTY
NO.
PART
QTY
1
2
3
4
5
6
7
8
9
MAIN FRAME ASSEMBLY
MAIN UPRIGHT
LEFT FOAM HANDLE
RIGHT FOAM HANDLE
MONITOR
1
29 CONNECTING ARM
2
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
2
1
1
1
2
2
30 LEFT FRONT FOOT FRAME
31 RIGHT FRONT FOOT FRAME
32 LEFT REAR FOOT FRAME
33 RI GHT REAR FOOT FRAME
1
1
1
1
PULLEY
34 ALUMINUM EXTENSION PLATE 1
GENERATOR
35 6004 PRECISE BEARING
36 608 PRECISE BEARING
37 38mm HANDLEBAR SLEEVE
38 76mm BUSHING
39 BELT TENSION BRACKET
40 ADJUSTMENT CHANNEL
41 EYEBOLT
6
8
CONTROLLER BOARD
V-BELT
2
10 T-SHAPED HANDLEBAR
11 BOTTOM LEFT HOUSING
12 BOTTOM RIGHT HOUSING
13 TOP HOUSING
14 CONSOLE TUBE COLLAR
15 ROUND COVER
16 ROOT PEDAL
4
1
2
3
42 SPRING
1
43 IDLER PULLEY
1
44 ROLLER
2
17 END CAP
45 ALUMINUM EXTRUSION
46 M6 LOCKNUT
2
18 ROLLER CAP
4
19 FOOT CAP
47 M6 HEX NUT
3
20 WHEEL
48 M10 CAP NUT
2
21 SNAP CAP
49 M8 LOCKNUT
10
22 NUT CAP
50 M8 IDX18.8mm OD
FLAT WASHER
23 38mm BALL PLUG
24 31.8mm BALL PLUG
25 HAND PULSE
12
4
51 M20X32X2mm WASHER
52 M10 NUT
10
1
26 PULSE WIRE
53 M8X17mm SCREW
54 M8X38mm SCREW
55 M8X57mm SCREW
56 M8X60mm SCREW
27 CONTROLLER
EXTENSION WIRE
1
2
1
2
28 CONTROLLER WIRE
3
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850 ELLIPTICAL PARTS LIST CONTINUED
NO.
PART
QTY
NO.
PART
QTY
70 25mm BUSHING
71 NUT CAP
8
57 TP4X12mm SCREW
58 TP5X50mm SCREW
59 M5X10mm SCREW
60 M6X15mm
46
4
2
1
1
2
2
2
2
4
2
3
2
2
4
4
4
8
4
4
4
6
2
2
2
4
4
72 CRANK NUT
73 LEFT CRANK
74 RIGHT CRANK
75 SHAFT BUSHING
76 JOINITER
61 M10X38 WASHER
62 M8X80mm CARRIAGE BOLT
63 M8X100 mm SCREW
64 M8X15mm SCREW
65 M10X55-8mm SCREW
66 M10X48 MACHINE SCREW
67 M10X58mm SCREW
68 15.8X10X4.3 CAP
77 M8X30mm WASHER
78 RETAINING RING
79 M26 CURVED WASHER
80 M16X28 WASHER
81 M8 NUT
82 38mm END CAP
83 31.8mm END CAP
84 13.7 X 10X8 CAP
69 M10X23mm WASHER
850 Display Instructions
Your Keys Elliptical Trainer 850 is equipped with a program-
mable monitor to help you track your progress and motivate you
to reach your fitness goals.
In order to set your programmable monitor, you must begin
stepping. The monitor will come to life and prompt you for
the following:
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850 DISPLAY INSTRUCTIONS
CONTINUED
Monitoring Your Heart Rate
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.
ENTER WEIGHT
Use the up and down arrows to set your weight, then press the
Enter key.
SELECT PROGRAM
Use the up and down arrows to scroll through the optional
programs. Once the desired program is displayed, press Enter.
Your maximum heart rate may be roughly calculated by
subtracting your age from 220. Your maximum heart rate and aer-
obic capacity naturally decreases as you age. This may vary from
one person to another, but use this number to find your approxi-
mate 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 20.
WORKOUT TIME
Use the up and down arrows to select your workout time, then
press the Enter key.
PRESS ENTER TO BEGIN
You must press the Enter key again to begin your workout.
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.
If you select the Fat Burn program, then you will also be
prompted for your workout time, age, and target heart rate
(see back of owner’s manual for more information on how to
calculate your target heart rate).
During both the Fit Test and Fat Burn programs, you will
need to maintain contact with the heart rate sensors as much
as possible.
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%.
Press the Program button at any time to reset the monitor.
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.
During your workout, press the Enter key to toggle through
the displays. Leave in the Scan mode for the computer to auto-
matically cycle through all displays.
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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
195
100%
190
185
180
175
170
165
160
Fitness Safety
Serious
athletic
training range
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.
155
132
85%
170
166
162
157
153
149
145
140
136
Cardiovascular
conditioning
range
150
146
75%
(MHR) = Maximum Heart Rate
143
139
135
131
128
124
120
Fat burning
range
(THR) = Target Heart Rate
116
93
220 - age = maximum heart rate (MHR). MHR x .60 = 60%
of your heart rate.
60%
120
117
114
111
108
105
102
99
96
MHR x .75 = 75% of your maximum heart rate.
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.
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