Sears Home Gym 831288140 User Guide

¨
Model No. 831.288140  
CAUTION  
Read all precautions and  
instructions in this manual  
before using this equipment.  
Keep this manual for future  
reference.  
USERÕS MANUAL  
SEARS, ROEBUCK AND CO., HOFFMAN ESTATES, IL 60179  
 
BEFORE YOU BEGIN  
Thank you for selecting the new LIFESTYLER¨ DT  
900. The LIFESTYLER¨ DT 900 provides you with a  
low-impact workout in the convenience and privacy of  
your own home.  
toll-free HELPLINE at 1-800-736-6879, Monday  
through Saturday, 7 a.m. until 7 p.m. Central Time  
(excluding holidays). To help us assist you, please  
mention the product model number when calling. The  
model number is 831.288140.  
For your benefit, read this manual carefully before  
you use the LIFESTYLER¨ DT 900. If you have  
questions after reading the manual, please call our  
Before reading further, please familiarize yourself with  
the parts that are labeled in the drawing below.  
Handlebars  
Seat  
Seat Pin  
Seat Post  
Console  
Resistance Knob  
Flywheel  
Pedal  
Side Shield  
BACK  
FRONT  
RIGHT SIDE  
3
 
ASSEMBLY  
Place all parts of the exercise cycle in a cleared area and remove the packing materials. Do not dispose of the  
packing materials until assembly is completed. Assembly requires a phillips screwdriver  
and an adjustable wrench  
(not included).  
1. Refer to the inset drawing. Remove the indicated  
plastic cap from the Frame (1). Discard the cap.  
1
1
Cap  
32  
Next, slide the bracket on the Rear Stabilizer (2)  
into the Frame (1). Attach the Rear Stabilizer with  
four Stabilizer Screws (32).  
1
2
2. Align the Front Stabilizer (5) with the saddle bracket  
on the front of the Frame (1). Make sure that the  
Front Stabilizer is turned so the square holes  
are facing away from the saddle bracket. Attach  
the Front Stabilizer with two Stabilizer Carriage  
Bolts (18), two Curved Washers (14), and two  
Stabilizer Nuts (30).  
2
14  
30  
5
1
Square Holes  
18  
Caps  
3. Refer to the inset drawing. Remove the indicated  
plastic caps from the Frame (1). Discard the caps.  
3
42  
33  
1
Next, slide the Left Handlebar (40) into the left side  
of the Frame (1). Slide the Right Handlebar (41) into  
the right side of the Frame.  
33  
3
Slide the Foam Grip (42) onto the Top Handlebar (3).  
Push the ends of the Foam Grip towards the center  
of the Top Handlebar so the ends of the Top  
Handlebar are uncovered. Insert the Top Handlebar  
into the Left and Right Handlebars (40, 41) and  
attach it with two Handlebar Screws (33). Slide the  
Foam Grip back so it covers the Handlebar Screws.  
40  
41  
Align the holes in the Left and Right Handlebars  
(40, 41) with the holes in the Frame (1). Attach the  
Handlebars with four Handlebar Bolts (36), four  
Handlebar Washers (38), and four Locknuts (37).  
Make sure that the Locknuts are in the hexagonal  
holes in the Frame.  
38  
36  
38  
37  
1
4
 
4. The Console (7) requires two "AA" batteries (not  
included). Alkaline batteries are recommended.  
Refer to the inset drawing. Remove the battery door  
from the back of the Console. Press two batteries  
into the battery compartment. Make sure that the  
negative ends of the batteries (marked ÒÐÓ) are  
touching the springs in the battery compartment.  
Re-attach the battery door.  
4
7
Console  
Wire  
Console  
Plate  
Next, plug the console wire into the socket on the  
back of the Console (7).  
Slide the Console (7) onto the console plate. Note:  
The Console attaches by friction; it does not snap  
into place.  
Batteries  
Battery Door  
5. Attach the Seat (11) to the Seat Post (10) with three  
Seat Nuts (9) and three Seat Washers (8). Note:  
The Seat Nuts and Seat Washers may be pre-  
attached to the underside of the Seat.  
5
11  
Insert the Seat Post (10) into the Frame (1). Press  
the Frame Bushing (4) into the Frame. Note: The  
Frame Bushing may be pre-assembled.  
8
8
9
Next, align one of the holes in the Seat Post (10)  
with the hole in the Frame (1). Insert the Seat Pin  
(31) through the Frame and the Seat Post to select  
the desired seat height. Make sure to insert the  
Seat Pin through one of the holes in the Seat  
Post; do not insert the Seat Pin under the Seat  
Post. Tighten the Seat Pin into the Frame.  
9
10  
4
31  
1
6. Identify the Right Pedal (22). (The Right Pedal is  
marked with an ÒR.Ó) Using an adjustable wrench,  
tighten the Right Pedal clockwise into the right arm  
of the Crank (20).  
6
20  
22  
Tighten the Left Pedal (21) counterclockwise into  
the left arm on the Crank (20).  
R
21  
R
L
7. Make sure that all parts are properly tightened before you use the exercise cycle.  
5
 
HOW TO USE THE EXERCISE CYCLE  
HOW TO ADJUST THE SEAT  
BATTERY INSTALLATION  
For effective exer-  
cise, the seat  
Before the console can be operated, two Ò"AA"Ó bat-  
teries must be installed. If you have not installed bat-  
teries, see assembly step 4 on page 5.  
must be at the  
proper height. As  
you pedal, there  
should be a slight  
bend in your  
knees when the  
pedals are in the  
lowest position. To  
adjust the seat,  
first hold the seat  
and turn the seat  
Seat  
DESCRIPTION OF THE CONSOLE  
The console features five modes that provide instant  
exercise feedback during your workouts. The modes  
are described below.  
Seat  
Post  
Frame  
Seat  
Pin  
pin counterclockwise to remove it. Next, align one of  
the holes in the seat post with the hole in the frame.  
Insert the seat pin through the frame and the seat  
post to select the desired height. Make sure to insert  
the seat pin through the seat post; do not insert  
the seat pin under the seat post. Tighten the seat  
pin into the frame.  
SPEED  
TIME  
SCAN  
DISTANCE  
CALORIES  
HOW TO ADJUST THE PEDALING RESISTANCE  
To vary the inten-  
sity of your exer-  
cise, the pedaling  
resistance can be  
Knob  
adjusted. The  
Mode  
Indicators  
Display  
Resistance  
resistance is con-  
trolled with the  
resistance knob.  
To increase the  
Button  
resistance, turn  
the resistance  
knob clockwise; to decrease the resistance, turn the  
knob counterclockwise.  
¥ SpeedÑDisplays your pedaling speed, in miles per  
hour.  
LEVELING THE EXERCISE CYCLE  
Your exercise  
cycle features  
adjustable end-  
caps on the front  
stabilizer. If the  
exercise cycle  
tends to rock  
when in use,  
adjust one or both  
of the endcaps by  
turning them until  
the exercise cycle is stable.  
¥ TimeÑDisplays the elapsed time. Note: If you stop  
pedaling for ten seconds or longer, the time mode  
will pause until you resume.  
Endcap  
¥ DistanceÑDisplays the total distance you have ped-  
aled, in miles.  
Stabilizer  
¥ CalorieÑDisplays the approximate number of calo-  
ries you have burned.  
¥ ScanÑDisplays the speed, time, distance, and calo-  
rie modes, for 5 seconds each, in a repeating cycle.  
6
 
HOW TO OPERATE THE CONSOLE  
Speed, time,  
distance or  
Note: If there is a piece of clear plastic on the face of  
the console, remove it before operating the console.  
calorie modeÑ  
To select one of  
these modes for  
continuous dis-  
play, press the  
console button  
repeatedly. The  
mode indicators will show which mode is selected.  
Make sure that the scan mode is not selected.  
1. To turn on the power, press the console button or  
simply begin pedaling. When the power is turned  
on, the entire display will appear for two seconds.  
The console will then be ready for operation.  
2. Select one of the five modes:  
Scan modeÑ  
When the power  
is turned on, the  
scan mode will  
3. To reset the display, hold down the console button  
for two seconds. After the display is reset, the scan  
mode will be selected.  
Mode Indicators  
automatically be  
selected. One  
mode indicator  
will show that  
the scan mode  
is selected, and  
4. To turn off the power, simply wait for about four min-  
utes. Note: The console has an Òauto-offÓ fea-  
ture. If the pedals are not moved and the con-  
sole button is not pressed for four minutes, the  
power will turn off automatically in order to con-  
serve the batteries.  
a flashing mode indicator will show which mode is  
currently displayed. Note: If a different mode is  
selected, you can select the scan mode again by  
repeatedly pressing the console button.  
7
 
MAINTENANCE AND TROUBLE-SHOOTING  
Inspect and tighten all parts of the exercise cycle reg-  
ularly. Replace any worn parts immediately.  
HOW TO ADJUST THE RESISTANCE STRAP  
If there is not enough pedaling resistance when the  
resistance knob is turned to the highest setting, the  
resistance strap may need to be adjusted. To adjust  
the resistance  
The exercise cycle can be cleaned with a soft, damp  
cloth. Avoid spilling liquid on the console. Keep the  
console out of direct sunlight or the display may be  
damaged. Remove the batteries when storing the  
exercise cycle.  
strap, first turn  
the resistance  
knob to the  
Slotted  
Tab  
BATTERY REPLACEMENT  
lowest setting.  
Next, locate  
the slotted tab  
on the front of  
the exercise  
cycle. Grip the  
main part the  
resistance  
Resistance  
Strap  
If the console does not function properly, the batteries  
should be replaced. See assembly step 4 on page 5.  
In addition, make sure that the console wire is  
plugged into the console.  
HOW TO TIGHTEN THE CRANK  
strap underneath the slotted tab and pull it towards  
the slot. When a little slack is created, pull the end of  
the resistance strap tight and then let go of the strap.  
Turn the crank for a moment to make sure that there  
is not too much resistance.  
If the arms of  
the crank  
become  
loose, they  
should be  
Slotted  
tightened in  
HOW TO ADJUST THE CHAIN  
Crank  
Nut  
Crank  
Nut  
order to pre-  
vent exces-  
sive wear.  
Loosen the  
crank nut on  
the left arm of  
the crank.  
Place the end of a standard screwdriver in one of the  
slots in the slotted crank nut. Lightly tap the screw-  
driver with a hammer to turn the slotted crank nut  
counterclockwise until the arms are no longer loose.  
Do not overtighten the slotted crank nut. When the  
slotted crank nut is properly tightened, retighten the  
crank nut.  
The exercise cycle features a chain that must be kept  
properly adjusted. If the chain causes excessive noise  
or slips as you pedal, the chain should be adjusted.  
Crank Arm  
To tighten the  
chain, loosen,  
but do not  
remove, the  
axle nuts on  
both sides of  
the flywheel.  
Pull the fly-  
wheel slightly  
Nut  
forwards.  
Axle  
Make sure that  
the flywheel is  
straight and tighten the axle nuts.  
8
 
CONDITIONING GUIDELINES  
The following guidelines will help you to plan your  
exercise program. Remember that proper nutrition  
and adequate rest are essential for successful results.  
If your goal is to burn fat, adjust the intensity of your  
exercise until your heart rate is near the lowest num-  
ber in your training zone as you exercise.  
For maximum fat burning, adjust the intensity of your  
exercise until your heart rate is near the middle num-  
ber in your training zone as you exercise.  
WARNING: Before beginning this or any exer-  
cise program, consult your physician. This is  
especially important for persons over the age  
of 35 or persons with pre-existing health  
problems.  
Aerobic Exercise  
If your goal is to strengthen your cardiovascular sys-  
tem, your exercise must be Òaerobic.Ó Aerobic exer-  
cise is activity that requires large amounts of oxygen  
for prolonged periods of time. This increases the  
demand on the heart to pump blood to the muscles,  
and on the lungs to oxygenate the blood. For aerobic  
exercise, adjust the intensity of your exercise until  
your heart rate is near the highest number in your  
training zone.  
EXERCISE INTENSITY  
Whether your goal is to burn fat or to strengthen your  
cardiovascular system, the key to achieving the  
desired results is to exercise with the proper intensity.  
The proper intensity level can be found by using your  
heart rate as a guide. The chart below shows recom-  
mended heart rates for fat burning, maximum fat  
burning, and cardiovascular (aerobic) exercise.  
HOW TO MEASURE YOUR HEART RATE  
To measure your  
heart rate, first  
exercise for at  
least four minutes.  
Then, stop exercis-  
ing and place two  
fingers on your  
wrist as shown.  
Take a six-second  
heartbeat count,  
and multiply the  
result by 10 to find your heart rate. For example, if  
your six-second heartbeat count is 14, your heart rate  
is 140 beats per minute. (A six-second count is used  
because your heart rate will drop rapidly when you  
stop exercising.)  
To find the proper heart rate for you, first find your age  
on the bottom of the chart (ages are rounded off to  
the nearest ten years). Next, find the three numbers  
above your age. The three numbers are your Òtraining  
zone.Ó The lowest number is the recommended heart  
rate for fat burning; the middle number is the heart  
rate for maximum fat burning; the highest number is  
the heart rate for aerobic exercise.  
WORKOUT GUIDELINES  
Each workout should include the following three  
important parts:  
A warm-up, consisting of 5 to 10 minutes of stretch-  
ing and light exercise. A proper warm-up increases  
your body temperature, heart rate, and circulation in  
preparation for exercise.  
Burning Fat  
To burn fat effectively, you must exercise at a rela-  
tively low intensity level for a sustained period of time.  
During the first few minutes of exercise, your body  
uses easily accessible carbohydrate calories for ener-  
gy. Only after the first few minutes of exercise does  
your body begin to use stored fat calories for energy.  
Training zone exercise, consisting of 20 to 30 min-  
utes of exercising with your heart rate in your training  
zone. (During the first few weeks of your exercise pro-  
gram, do not keep your heart rate in your training  
zone for longer than 20 minutes.)  
9
 
A cool-down, with 5 to 10 minutes of stretching. This  
will increase the flexibility of your muscles and will  
help to prevent post-exercise problems.  
workouts. After a few months of regular exercise, you  
may complete up to five workouts each week, if  
desired. Caution: Be sure to progress at your own  
pace and avoid overdoing it. Incorrect or excessive  
training may result in injury to your health.  
EXERCISE FREQUENCY  
To maintain or improve your condition, plan three work-  
outs each week, with at least one day of rest between  
Remember, the key to success is make exercise a  
regular and enjoyable part of your everyday life.  
PART LISTÑModel No. 831.288140  
R0399A  
Key No. Qty.  
Description  
Key No. Qty.  
Description  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
1
1
1
1
1
2
1
3
3
1
1
2
2
2
6
1
1
2
1
1
1
1
Frame  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
41  
42  
#
1
1
3
1
4
1
2
2
1
4
2
1
1
4
4
4
2
1
1
1
1
1
Chain  
Rear Stabilizer  
Top Handlebar  
Frame Bushing  
Front Stabilizer  
Stabilizer Endcap  
Console  
Seat Washer  
Seat Nut  
Seat Post  
Seat  
Side Shield  
Bronze Bushing  
Curved Washer  
Side Shield Screw  
Flywheel  
Resistance Cable/Knob  
7/16Ó Flat Washer  
Flywheel Axle  
3/8Ó Axle Nut  
Odometer  
Axle Nut  
Stabilizer Nut  
Seat Pin  
Stabilizer Screw  
Handlebar Screw  
Resistance Spring  
Sprocket  
Handlebar Bolt  
Locknuts  
Handlebar Washer  
Round Endcap  
Left Handlebar  
Right Handlebar  
Foam Grip  
Resistance Strap  
Stabilizer Carriage Bolt  
Crank Hardware Assembly  
Crank  
Left Pedal  
Right Pedal  
UserÕs Manual  
Multipurpose Tool  
#
Note: Ò#Ó refers to a non-illustrated part. Specifications are subject to change without notice. See the back cover  
of this manual for information about ordering replacement parts.  
10  
 
EXPLODED DRAWINGÑModel No. 831.288140  
R0399A  
29  
7
27  
25  
28  
25  
13  
16  
42  
27  
33  
26  
11  
13  
27  
3
33  
29  
25  
40  
41  
21  
20  
8
4
8
9
9
19  
36  
10  
15  
24  
38  
31  
19  
39  
32  
37  
12  
2
15  
39  
35  
34  
20  
15  
17  
22  
15  
23  
6
1
30  
14  
5
12  
6
15  
18  
15  
11  
 
All replacement parts are available for immediate purchase or  
special order when you visit your nearest SEARS Service Center.  
To request service or to order parts by telephone, call the toll-free  
numbers listed at the left.  
Model No. 831.288140  
QUESTIONS?  
When requesting help or service, or ordering parts, please be  
prepared to provide the following information:  
If you find that:  
¥ The MODEL NUMBER of the product (831.288140).  
¥ The NAME of the product (LIFESTYLER¨ DT 900).  
¥ you need help assembling or  
operating the LIFESTYLER¨ DT  
900  
¥ a part is missing  
¥ The KEY NUMBER and DESCRIPTION of the PART (see the  
PART LIST and the EXPLODED DRAWING on pages 10 and 11).  
¥ or you need to schedule repair  
service  
call our toll-free HELPLINE  
1-800-736-6879  
MondayÐSaturday, 7 amÐ7 pm  
Central Time (excluding holidays)  
REPLACEMENT  
PARTS  
If parts become worn and need to  
be replaced, call the following toll-  
free number  
1-800-FON-PART  
(1-800-366-7278)  
FULL 90 DAY WARRANTY  
For 90 days from the date of purchase, if failure occurs due to defect in material or workmanship in this  
SEARS BIKE EXERCISER, contact the nearest SEARS Service Center throughout the United States  
and SEARS will repair or replace the BIKE EXERCISER, free of charge.  
This warranty does not apply when the BIKE EXERCISER is used commercially or for rental purposes.  
This warranty gives you specific legal rights, and you may also have other rights which vary from state  
to state.  
SEARS, ROEBUCK AND CO., DEPT. 817WA, HOFFMAN ESTATES, IL 60179  
Part No. 152378 H04402AC R0399A  
Printed in Taiwan © 1999 Sears, Roebuck and Co.  
 

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