Keys Fitness Dual Action Bike CardioMax 535 User manual

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.
4009 Distribution Dr.
Suite 250
Garland, Texas 75041
1-888-340-0482
Monday-Friday
8:30-5:30 Central Time
OWNER’S MANUAL
Keys Fitness Products, L.P.
P.O. Box 551239
Dallas, Texas 75355-1239
CardioMax
535 Dual Action Bike
QUESTIONS?
Call Our Toll Free
Keys Fitness Helpline
1-888-340-0482

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Keys Fitness is committed
to quality products that
demonstrate our commitment
to excellence!
Keys Exercise Bike
Model: CM535D
Questions?
Please call if:
• you need assistance about
operating your exercise bike
• parts are missing
• parts become worn or need to
be replaced
1-888-340-0482
Monday-Friday
8:30-5:30 Central Time
Please have the following product information
available:
• Model Number
• Part Number
• Description
Before You Start
Thank you for purchasing a Keys exercise bicycle! This quality
product you have chosen was designed to meet your needs for
cardiovascular exercise.
Prior to assembly, remove components from the box. Assembly
instructions are described in the following steps and illustra-
tions.
Important Safety Information
WARNING!
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.
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.

Safety Precautions and Tips
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.
• This exercise bike has a maximum user capacity of 300
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 an
equipment mat be placed under the bicycle to the protect the
floor or carpet and for easier cleaning.
• Wear comfortable, good-quality walking or running shoes
and appropriate clothing. Do not use this exercise bike with
bare feet, sandals, socks or stockings!
• 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.
• 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 per-
formed by an authorized service representative, unless author-
ized and/or instructed by a Keys technician. Failure to follow
these instructions will void the warranty.
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ASSEMBLY PARTS
PART #
Front Foot Tube 2
Rear Foot Tube 2A
Frame 3
Right Pedal 9
Left Pedal 10
Seat 13
Seat Post 14
Locking Knob 15
Console Tube 16
Right Handlebar 21
Left Handlebar 22
Right Connecting Arm 23
Left Connecting Arm 24
2
3
9
10
23/24
2A
13
14
15
16
21
22
3

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Assembly of CardioMax
535 Dual Action Bike
REMOVE ALL SECURITY TAPE AND WRAPPING
BEFORE BEGINNING
1. Attach REAR FOOT TUBE to the FRAME by using the
CARRIAGE BOLTS, WASHERS and CAP NUTS.
2. Attach the FRONT FOOT TUBE to the FRAME by using the
CARRIAGE BOLTS, WASHERS and CAP NUTS.

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3. Thread SHAFTS of PEDALS into CRANK and tighten with
wrench.
IMPORTANT: Axles of 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.
4. Place SEAT upside down and remove NUTS on MOUNTING
BOLTS. Lower MOUNTING PLATE of SEAT POST down
onto MOUNTING BOLTS and fasten with removed NUTS.

5. Turn LOCKING KNOB counterclockwise to loosen. Pull
LOCKING KNOB out and insert SEAT POST into SEAT
POST TUBE to desired seat height. Release LOCKING
KNOB so that it springs into a hole in the SEAT POST and
turn clockwise until tight to remove any looseness.
IMPORTANT: LOCKING KNOB must be locked tightly
into hole in SEAT POST before you sit on
the SEAT.
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6. Connect EXETENSION WIRE in CONSOLE TUBE to
REED SWITCH WIRE in FRAME. Connect the TENSION
CABLE in CONSOLE TUBE to the TENSION BLOCK in
FRAME (See Detail). Secure CONSOLE TUBE to FRAME
with BUTTON HEAD SCREWS and WASHERS.
DETAIL

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7. With PIVOT TUBES on rear side of HANDLEBARS and
CONNECTING ARMS to inside, slide RIGHT and LEFT
HANDLEBARS onto AXLE. Slide LARGE WASHER onto
end of AXLE. Carefully tap PUSHNUT onto end of AXLE
with hammer. Connect heart rate wires from CONSOLE
TUBE (B) to heart rate wire in each handlebar (A).
8. ATTACHING CONNECTING ARMS TO PEDALS:
(DUAL ACTION MODE)
Slide RETAINER onto CONNECTING ARM until it has cleared
SLOT in CONNECTING ARM as shown in DETAIL.
Lower SLOT in CONNECTING
ARM down over PEDAL
BUSHING - see Figure A.
Slide RETAINER in direction of
ARROW until CONNECTING
ARM is locked in DUAL
ACTION MODE - see Figure B.
DETAIL
FIGURE A
FIGURE B

9. ATTACHING CONNECTING ARMS TO LOCKOUT ROD:
(SINGLE ACTION MODE)
Carefully tap PUSHNUT onto ends of LOCKOUT ROD with
hammer. Lower SLOT in CONNECTING ARM onto LOCKOUT
ROD and slide RETAINER back over LOCKOUT ROD to lock
CONNECTING ARM in SINGLE ACTION MODE.
10. CONNECTING ARM ADJUSTMENT
NOTE: There are three ADJUSTMENT HOLES in each
CONNECTING ARM. The CONNECTING ARM comes
attached to the END HOLE. The END HOLE puts the
GRIP end of the HANDLEBARS closer to you, which is
better for shorter people. The INSIDE HOLE puts the GRIP
end farther away from you which is better for taller people.
Remove HAIRPIN COTTER and 5/16” WASHER from
PIVOT PIN in HANDLEBAR. Slide desired ADJUST-
MENT HOLE of CONNECTING ARM onto PIVOT PIN of
HANDLEBAR. Place 5/16” WASHER over PIVOT PIN
and insert HAIRPIN COTTER through hole in PIVOT PIN
to lock in place.
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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.
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 16.
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.
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.
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12. Remove the four MACHINE SCREWS from back of CONSOLE.
Carefully plug EXTENSION WIRE and PULSE WIRE into bot-
tom of CONSOLE. Attach CONSOLE to CONSOLE TUBE
with MACHINE SCREWS from CONSOLE.
11. Remove BATTERY DOOR of
CONSOLE and insert TWO
“AA” SIZE BATTERIES,
then replace BATTERY
DOOR.
NOTE: Do not use rechargeable
batteries. They will cause a short
circuit and destroy console.
PULSE
WIRE

100%
85%
75%
60%
Serious
athletic
training range
Cardiovascular
conditioning
range
Fat burning
range
20 25 30 35 40 45 50 55 60 65
AGE
200 195 190 185 180 175 170 165 160 155
170 166 162 157 153 149 145 140 136 132
150 146 143 139 135 131 128 124 120 116
120 117 114 111 108 105 102 99 96 93
TARGET HEART RATE ZONE
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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.
Fitness Safety
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.
(MHR) = Maximum Heart Rate
(THR) = Target Heart Rate
220 - age = maximum heart rate (MHR).
MHR x .60 = 60% of your maximum heart rate.
MHR x .75 = 75% of your maximum heart rate.
For example, if you are 30 years old, your
calculations will be as follows:
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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