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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 18.

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.

16

17

Console Functions

Please see insert for LCD console display instructions.

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.

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.  

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.

Summary of Contents for 520U

Page 1: ...ntral Time OWNER S MANUAL Keys Fitness Products L P P O Box 551239 Dallas Texas 75355 1239 CAUTION Please read the precautions and instructions in this manual before using this equipment Please save this manual for future reference QUESTIONS Call Our Toll Free Keys Fitness Helpline 1 888 340 0482 CardioMax 520 Upright ...

Page 2: ...use to void this Limited Warranty This warranty does not extend to any product not purchased from Keys or from an authorized Keys reseller This Limited Warranty does not extend to any Product that has been damaged or rendered defective a as a result of acci dent misuse or abuse b by the use of parts not manufactured or sold by Keys c by modification of the Product or normal wear and tear d operati...

Page 3: ...o 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 Thank you for purchasing a Keys exercise bicycle This quality product you have choosen was designed to meet your needs for cardiovascular exercise Prior to assembly...

Page 4: ... x 19 Arc Washer No 19 10 ea Allen Wrench 4 5 MAIN FRAME No 1 FRONT STABILIZER No 21 REAR STABILIZER No 15 SEAT POST No 49 PEDALS L N0 13 R N0 14 PLASTIC BELLOWS No 70 TENSION CABLE No 59 TENSION CONTROLLER No 58 HANDLEBAR POST No 56 HANDLEBAR No 62 COMPUTER No 61 SEAT No 52 Assembly Parts Assembly Accessories ...

Page 5: ... Nuts 18 14 13 9 1 3 17 18 19 18 17 15 1 21 19 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 ...

Page 6: ...the Seat Post 49 with the Nuts 50 and Washers 51 provided 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 70 49 4 47 ...

Page 7: ...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...

Page 8: ... 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 56 62 55 19 8 ...

Page 9: ...OLTM8 60 2 33 MAGNETIC PLATE 1 34 MAGNETIC SPRING 1 35 IDLER SPRING 1 NO PART QTY 36 HEX BOLT 3 8 26 2 37 WASHER 1 38 IDLER ARM 1 39 NYLOCK NUT 3 8 1 40 IDLER WHEEL SPACER 1 41 IDLER WHEEL 1 42 TENSION SPRING 1 43 WASHER 1 44 NYLOCK NUT M10 1 45 SENSOR WIRE 1 46 SCREW M3 10 1 47 SEAT ADJUSTMENT KNOB 1 48 PORT SUPPORT BUSHING 1 49 SEAT POST 1 50 NYLOCK NUT M8 3 51 WASHER 3 52 SEAT 1 53 NUT M8 1 54 ...

Page 10: ...es 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 6...

Page 11: ...ety 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 T...

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