HealthTrainer HT660u User manual

Customer Service
[phone]
4009 Distribution Drive
Suite 250
Garland, TX 75041
www.keysfitness.com
315-00110
07/07 Rev A
SERIAL TAG IS LOCATED ON THE FRAME
Model Name: HT660U
Date of Purchase:
Serial Number:
Owner’s Manual
HealthTrainer 660 Upright

2
Important Safety Information 3-4
Assembly 5-10
Console Instructions 11-15
Monitoring Your Heart Rate 16-17
Warm-Up Exercises 18
Moving Instructions 19
Parts List 20
Exploded Views 21
Warranty Information 22
Table of Contents

3
WARNING! Before using this 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. The manufacturer or distributor assumes no responsibility for personal injury
or property damage sustained by or through the use of this product.
WARNING! 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
1. It is the owner's responsibility to ensure that all users of this unit have read the Owner's
Manual and are familiar with warnings and safety precautions.
2. This unit has a user maximum capacity of 300 pounds.
3. The unit should only be used on a level surface and is intended for indoor use only. The unit
should not be placed in a garage, patio, or near water and should never be used while you are
wet. Keys Fitness recommends a mat be placed under the unit to protect floor or carpet and for
easier cleaning.
4. Follow safety information in regards to plugging in your unit. Do not run the power cord
underneath your unit. Do not operate the unit with a damaged or frayed power cord.
5. Wear comfortable, good-quality walking or running shoes and appropriate clothing. Do not
use the unit with bare feet, sandals, socks or stockings.
6. Always examine your unit before using to ensure all parts are in working order.
7. Allow the unit to fully stop before dismounting.
8. Pets should never be allowed near the unit.
9. Do not leave children unsupervised near or on the unit.
10. Never operate the unit where oxygen is being administered, or where aerosol products are
being used.
11. Never insert any object or body parts into any opening.
12. For safety and to prevent damage to your unit, no more than one person should use the
unit at a time.
13. Always unplug the unit before cleaning and/or servicing. Service to your unit should only be
performed by an authorized service representative, unless authorized and/or instructed by the
manufacturer.
14. Failure to follow these instructions will void the unit warranty.
Important Safety Information

4
Important Safety Information
Thank you for purchasing the Keys Fitness HealthTrainer 660 Upright Bike! The quality
product you have chosen was designed to meet your needs for cardiovascular exercise. Before
you start, please read the Owner’s Manual and become familiar with the operation of your new
unit.
Remember to take time to perform stretching exercises, provided in this manual, to help avoid
injury.
If you are taking medication, consult your physician to see what effect the medication will have
on your exercise heart rate.
If you have heart problems, you are not active, and/or are over the age of 35 years, do not
use the pre-set programs or start an exercise program without first contacting and receiving
approval from your physician.
To avoid the risk of electrical shock, always keep the console dry. Do not spill liquids on the
console. Keys Fitness recommends a sealed water bottle for beverages consumed while using
the unit.
Please review the following drawing below to familiarize yourself with the listed
parts.

5
Getting Started - The Healthtrainer HT660U will require some assembly. Unpack the box in
a clear area. Remove packing material. Do not dispose of packing material until assembly is
complete and unit is working properly. Place the unit on a clean level surface for assembly.
Make sure there is easy access to an electrical outlet. Before assembling, the unit should be
placed as close as possible to its final location. If you are missing any parts, please call Keys
Fitness at 1-888-340-0482. Tools have been provided to assist with product assembly.
Assembly
Figure 1
Step 1:
Attach the rear stabilizer (2a) onto the
rear of main frame (3) using carriage
bolts (1), washers (4), and cap nuts (5).
Step 2:
Attach the front stabilizer (2) onto the
front of the main frame (3) using carriage
bolts (1), washers (4), and cap nuts (5).
Note: Front Stabilizer will have roller
wheels.
a

6
Assembly
Figure 2
Step 1:
Turn locking knob (26) counter-clockwise and pull out.
Step 2:
While pulling the locking knob (26) out, slide seat post (8) into main frame (3) until desired
height is selected.
Step 3:
Release locking knob and turn clockwise to secure seat post (8).

7
Assembly
Figure 3
Step 1:
Attach seat (11) to seat post (8) using washers (22) and locknuts (21).

8
Assembly
Figure 4
Step 1:
Slide console tube collar (9) up the console tube. Connect wire harness (65) coming from the
main frame to wire harness (37) from the console tube.
Step 2:
Slide the console tube (39) onto main frame (3) and secure using hex head screws (19), wash-
ers (4), and locknuts (31). Slide console cover (9) down and secure using screws (14).

Assembly
9
Figure 5
Step 1:
Attach the left pedal (35) to the left crank. The left pedal is marked with an "L". Turn the
threads on the pedal counter-clockwise to secure it to the crank.
Step 2:
Attach the right pedal (34) to the right crank. The right pedal is marked with an "R". Turn
the threads on the pedal clockwise to secure it to the crank.
Step 3
Attach the pedal straps (35a and 34a) to the appropriate pedal. Each strap is marked with an
"L" or an "R". The side with 2 holes will go on the clip towards the inside of the unit.
Figure 6
Step 1:
Attach the front handlebar (41) to the
console tube (39) using hex head screws
(20), washers (4), locknuts (31), and
hex head screw (24).

10
Assembly
Congratulations!
You have completed assembly of your new HT660U bike!
Figure 7
Step 1:
Connect the wires coming from the con-
sole (40) to pulse wires (29) and wire
harness (37).
Step 2:
Secure the console to the console tube
(39) using screws (43).
Note: The screws are already pre-
installed into the back of the console.

11
Console Instructions
The HT660U's console is a single LCD that displays RPM, SPEED, TIME, DISTANCE, CALORIES,
PULSE, and HEART RATE.
Power Modes
Power On: Make sure the AC adapter is plugged into an outlet. Press any button to turn on
the console. A long beep will sound and the entire LCD display will light up for 2 seconds.
Sleep: This occurs if the unit senses no pedal movement or if the console buttons have not
been pressed for 4 minutes.
Activate: After the console enters sleep mode, press any button or begin pedaling to turn the
console back on.
Buttons
Up/Down Dial
During Setup Mode (Dial wheel for selection): It is used to select the workout program.
It is also used to change Time, Calories, Distance, and Program.
During Workout: You can press the Up/Down buttons to increase or decrease the resistance
levels from 1 to 16.

12
Console Instructions
Start/Stop
During Setup Mode: This button is used to begin workout. Press this button once all
settings are confirmed
During Workout: It is used to pause workout mode. All workout data is stored during pause
mode.
Enter (Press the dial)
During Setup Mode: This button is used to select the desired setting you wish to change
and to confirm the values entered (Time, Calories, Distance, Pulse, and Program).
Pulse Recovery
During Workout: This button is used to test the user's fitness level. The user must press
the button, then hold the pulse grips until the console counts down 60 seconds (refer to
console functions for more information).
Body Fat
During Set Up Mode: Press the button to start body fat program. User will be prompted to
input Height, Weight, Gender, and Age. This program is designed to calculate body fat ratio
and to design a specific tension profile. In order to use this program correctly, make sure the
personal data has been input and correct. After program is completed, three values will be
displayed:
Body Fat: Body Fat is the percentage of a person’s body mass that is not made up of
either; bones, muscles, organs, or water.
BMR: Stands for Basal Metabolic Rate. Basal Metabolic Rate (metabolism) is the rate at
which your body uses energy (calories) at rest, affecting total energy needs.
BMI: Stands for Body Mass Index. BMI is a measure which takes into account a person’s
weight and height to gauge total body fat in adults.
Note: All of the figures below are not intended to be used as medical guidelines. Please consult
your physician for more accurate and personalized recommendations.
Body Type Female Male
Athlete <17% <10%
Lean 17-22% 10-15%
Avera
g
e22-25% 15-18%
Above Av
g
25-29% 18-20%
Overwei
g
ht 29-35% 20-25%
Obese 35+% 25+%
Body Fat
Body Type Range
Underweight <18.5
Ideal 18.5-25
Overweight 25-30
Obese >30
Body Mass Index
CONSOLE FUNCTIONS
TIME:
If a target time was not selected, time will count up from 00:00 to maximum 99:59. When
working out with a target time, time will count down from target to 00:00. When select-
ing target time, turn the dial clockwise to increase value, turn the dial counter-clockwise to
decrease value, the time will change in 1 minute increments and can range from 1:00 min to
99:00 mins.
SPEED:
Displays current training speed from 0.0 to maximum 99.9 KM or MPH.

RPM:
Displays current training revolutions per minute.
DISTANCE:
If a target distance was not selected, distance will count up from 0.00 to maximum 99.90.
When working out with a target distance, distance will count down from target to 0.0. When
selecting target time, turn the dial clockwise to increase value, turn the dial counter-clockwise
to decrease value, the distance will change in 0.1 mile increments and can range from 0.00
miles to 99.90 miles.
CALORIES:
If target calories were not selected, calories will count up from 0 to maximum 990. When
working out with target calories, calories will count down from target to 0. When selecting
target calories, turn the dial clockwise to increase value, turn the dial counter-clockwise to
decrease value, the calories will change in 10 calorie increments and can range from 0 calories
to 990 calories.
PULSE:
Displays your current heart rate as soon as both hands are holding the pulse sensor. The mon-
itor will detect your heart rate through hand grip sensors that are located on the upright and
near the seat. Note: It may take several seconds for the electronics to detect and display an
accurate heart rate reading.
WATT:
Displays current training watt figures. A watt is a measurement of the amount of power gener-
ated by the user based on the resistance and speed.
PULSE RECOVERY:
After your workout, keep holding on hand grips and press “PULSE RECOVERY” button. All func-
tion display will stop except “TIME” starts counting down from 01:00 to 00:00. Screen will
display your heart rate recovery status rating between F1-F6. F1 is the best, F6 is the worst.
If no pulse signal is detected by the console, "P" will be displayed in the pulse window. If the
console displays "ERR", please press "PULSE RECOVERY" button again and hold onto the hand
grips once more.
PROGRAM INSTRUCTIONS
MANUAL PROGRAM:
After turning the console on by pressing any button or pedaling, turn the dial until Manual is
displayed. The manual program allows the user to manually adjust tension settings throughout
his/her workout. The default tension level is 1. You may set desired time, distance, calories,
resistance, and pulse rate for your workout. If desired, user may bypass all of this, and simply
press START/STOP button and enter into quick start.
Time will flash in the display. Turn the dial clockwise to increase value, turn the dial counter-
clockwise to decrease value to set desired time. Press Enter to confirm selection. Repeat steps
for distance, pulse, and calories. Press Start/Stop to begin exercising at any time. You can
change the tension level at any time during your workout session by turning the selection dial.
13
Console Instructions

14
Console Instructions
PROGRAMS:
The console comes with 12 preset programs (see program profiles on page 12 for programs
available). Turn the selection dial until desired program is displayed. Press the dial to con-
firm selection. Time will flash in the display. Turn the selection dial to set desired time. Press
the dial to confirm selection. Repeat steps for distance, pulse, resistance, and calories. Press
START/STOP to begin exercising at any time. You can change the resistance at any time during
your workout session by pressing the Up/Down buttons.
USER PROGRAM:
The console allows user to customize up to four separate workout sessions. The program is
divided into 10 segments. Resistance can be set for each segment. The program will be stored
in the console’s memory after set-up.
Turn the selection dial until desired user program is selected (U1-U4 will be displayed). Press
the dial to confirm selection. The first segment will now be flashing in the main window. Turn
the dial clockwise to increase the desired resistance, turn the dial counter-clockwise to decrease
the desired resistance. Press the dial to confirm selection and proceed to the next segment.
Time will flash in the display. Turn the selection dial to set desired time. Press the dial to con-
firm selection. Repeat steps for distance, pulse, resistance, and calories. Press START/STOP to
begin exercising at any time. You can change the resistance at any time during your workout
session by turning the selection dial.
HEART RATE PROGRAM (HRC):
Heart rate control programs are designed to automatically change resistance to keep your
heart rate at a predetermined level based on the selected Heart Rate program. Each heart rate
program is designed with a specific goal in mind. Note: This calculation is based on your age
which must be entered correctly into your user profile.
See MONITORING YOUR HEART RATE section for more information.
Turn the selection dial until desired HRC Program. There are five different programs - heart
rate 55% HRC (Heart Rate Control), 65% HRC, 75% HRC, 85% HRC, and Target HRC (user
specifies the percentage of maximum heart rate desired). Press Enter button to confirm selec-
tion.
If TRG is selected, use the Up/- buttons until desired target heart rate is selected. Press
Enter button to confirm selection.
Age will flash in the display. Use the Up/Down buttons to set Age. Press Enter to confirm
selection. Repeat steps for time, distance, pulse, resistance, and calories. Press START/STOP
to begin exercising at any time.
Note: For a more accurate reading, hold the hand grips with both hands. This is
especially important in Heart Rate Enter.
ERROR CODES
E1 (Error 1): Is displayed when console no longer receives a signal from the gearbox (motor).
E2 (Error 2): Software malfunction.
E3 (Error 3): Is displayed when the console detects a faulty gearbox (motor).

15
Console Instructions
PROGRAM 1 PROGRAM 2 PROGRAM 3
MANUAL STEPS HILL
PROGRAM 4 PROGRAM 5 PROGRAM 6
ROLLING VALLEY FAT BURN
PROGRAM 7 PROGRAM 8 PROGRAM 9
RAMP MOUNTAIN INTERVALS
PROGRAM 10 PROGRAM 11 PROGRAM 12
RANDOM PLATEAU FARTLEK
PROGRAM 13
PRECIPICE
PROGRAM 14
USER 1
PROGRAM 15
USER 2
PROGRAM 16
USER 3
PROGRAM 17
USER 4
PROGRAM 18
55% H.R.C.
PROGRAM 19
65% H.R.C.
PROGRAM 20
75% H.R.C.
PROGRAM 21
85% H.R.C.
PROGRAM 22
TARGET H.R.C.
PROGRAM 23
WATT CONTROL
PROGRAM 24
BODY FAT (STOP MODE)

16
Monitoring Your Heart Rate
Monitoring Your Heart Rate
To obtain the greatest cardiovascular benefits from your exercise 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 below.
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 maximum heart rate may be too strenu-
ous unless you are in top physical condition. Exercising below 60% of your maximum will result
in minimal cardiovascular conditioning.
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 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 profes-
sional can help you determine the exercise intensity that is appropriate for your age and condi-
tion.
(MHR) = Maximum Heart Rate
(THR) = Target Heart Rate
220 - age = maximum heart rate (MHZ)
MHZ x .60 = 60% of your maximum heart rate.
MHZ 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 MHZ)
190 x .75 = 142 (high end or 75% of MHZ)
30 year-old (THR) Target Heart Rate would be 114-142

17
Monitoring Your Heart Rate
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

18
TOE TOUCH STRETCH
Stand, bending your knees slightly and slowly bend forward from
your hips. Allow your back and shoulders to relax as you reach
down toward your toes as far as possible. Hold for 15 counts,
then relax. This will stretch your hamstrings, back of knees, and
back.
HAMSTRING STRETCH
Sit with one leg extended. Bring the sole of the opposite foot
toward you and rest it against the inner thigh of your extended
leg. Reach toward your toes as far as possible. Hold for 15
counts, then relax. This will stretch your hamstrings, lower back,
and groin.
CALF/ACHILLES STRETCH
With one leg in front of the other, reach forward and place your
hands against a wall. Keep your back leg straight and your back
foot flat on the floor. Bend your front leg, lean forward and move
your hips toward the wall. Hold for 15 counts, then relax. To
cause further stretching of the Achilles tendon, bend your back
leg as well. This will stretch your calves, Achilles tendons, and
ankles.
QUADRICEPS STRETCH
With one hand against a wall for balance, reach back and grasp
one foot with your other hand. Bring your heel as close to your
buttocks as possible. Hold for 15 counts, then relax. This will
stretch your quadriceps and hip muscles.
INNER THIGH STRETCH (Image not Shown)
Sit with the soles of your feet together and your knees outward.
Pull your feet toward your groin area as far as possible. Hold for
15 counts, then relax. This will stretch your quadriceps and hip
muscles.
EXERCISE GUIDELINES
WARNING! Before beginning this or any exercise program, you should consult your physician.
This is especially important for individuals over the age of 35 or individuals with pre-existing
health problems.
Warming up prepares the body for the exercise by increasing circulation, supplying more oxy-
gen to the muscles and raising body temperature. Begin each workout with 5 to 10 minutes of
stretching and light exercise to warm up. The photos on this page show several forms of basic
stretching you may perform before your workouts. In order to achieve an adequate warm-up,
perform each stretch three times.
Warm Up Exercises

19
Moving Instructions
CAUTION! TO REDUCE THE POSSIBILITY OF INJURY WHILE LIFTING, BEND YOUR LEGS AND
KEEP YOUR BACK STRAIGHT. AS YOU LEAN THE UNIT, LIFT USING YOUR LEGS, NOT YOUR
BACK.
First, kneel down and grasp the rear support tube with both hands as shown in Figure 1. Next,
with a firm grasp on rear support tube stand up bringing the rear of the bike up in the air and
tilt the unit until it rolls freely on the transport wheels. Using extreme caution, move the unit to
the desired location as shown in Figure 2. Do not attempt to move the unit over an uneven or
rough surface.
Note: The unit you purchased may not be identical to the one pictured.

REF # PARTS # DESCRIPTION
Q
TY REF # PARTS # DESCRIPTION
Q
TY
1 302-01636 Carria
g
e Bolt M8x1.25x70mm 4 34a 306-01011 Ri
g
ht Pedal Stra
p
1
2 323-00615 Front Stabilizer 1 35 306-01010 Left Pedal 1
2a 323-00624 Rear Stabilizer 1 35a 306-01012 Left Pedal Stra
p
1
4 302-00449 M8x19mm Flat Washer
(
Black
)
13 36 330-00104 Crank 1
5 302-01612 8mm Ca
p
Nut 4 37 313-00455 Extension Wire 1
6 306-01009 Trans
p
ortation Wheel 2 38 313-00447 Sensor Wire 1
7 306-00641 Foot Ca
p
2 39 323-00621 Console Tube 1
8 323-00622 Seat Post 1 40 307-00741 Monitor 1
9 305-01605 Console Tube Collar 1 41 323-00620 Handlebar 1
10 306-00492 40x80 Inner Bushin
g
1 42 302-00399 Ad
j
ustment Channel 2
11 328-00090 Seat Pad 1 43 302-00443 M5x10mm Philli
p
s Screw 4
12 305-01603 Bottom Ri
g
ht Cove
r
1 44 307-00740 DC Power Cord 1
13 305-01604 Bottom Left Cove
r
1 45 302-01195 M6x40mm E
y
ebolt
(
Sliver
)
3
14 302-00471 TP M4x12mm Screw 12 46 302-01618 S
p
rin
g
1
15 302-01192 TP M4x16mm Screw 8 47 304-00029 V-Belt 1
16 302-00417 TP M5x 50mm Screw
(
Sliver
)
6 48 302-00402 M10x19mm Black Washer 2
17 305-01601 Ri
g
ht Connectin
g
Cover 1 49 302-00468 M10 Nut Ca
p
2
18 305-01602 Left Connectin
g
Cover 1 50 311-00108 Pull
y
1
19 302-00377 M8x60mm Hex Head Screw 3 51 302-00368 6mm Locknut
(
Sliver
)
4
20 302-01606 M8x57mm Hex Head Screw 2 52 310-00173 Ma
g
net 1
21 302-01211 8mm Locknut
(
Sliver
)
4 53 311-00068 Ma
g
Brake 1
22 302-01244 M8x19mm Washer
(
Sliver
)
4 54 319-00402 Belt Tension Bracket 1
23 302-01617 M6x12mm Hex Head Screw
(
Sliver
)
4 55 302-01198 M8x20mm Hex Head Screw 1
24 302-00411 M8x15mm Hex Head Screw
(
Black
)
3 56 302-00375 M8x38mm Hex Head Screw 1
25 302-00417 TP M5x10mm Screw 2 57 305-01600
T
o
p
Cove
r
1
26 302-01214 Lockin
g
Knob
(
22mmL
)
1 58 311-00107 Idle Pull
y
1
27 302-01610 8x12.5x14.9L S
p
ace
r
1 59 331-00088 Bearin
g
Cu
p
2
28 302-00368 6mm Hex Nut
(
Sliver
)
4 60 331-00006 Bearin
g
Set
(
12
p
cs
)
2
29 313-00455 Hand Pulse Sensor With Wire 2 61 331-00022 Slotted Bearin
g
Nut 1
30 302-00467 TP M3x8mm Screw 2 62 331-00015 Notched Bearin
g
Nut 1
31 302-00455 8mm Black Locknut
(
Thick
)
7 63 302-01613 Ǽ38xǼ24x1.5t Washer 1
32 306-01016 Handlebar Sleeve 2 63a 302-01614 Ǽ35xǼ22x2.0t Washer 1
33 306-00569 1” Ball Plu
g
2 64 302-01219 Crank Nut 2
34 306-01013 Ri
g
ht Pedal 1 65 313-00449 Gear Box With Wire 1
HT660U PARTS LIST REV. A
20
Parts List