background image

CAUTION

Read all precautions and instruc-

tions in this manual before using

this equipment. Keep this manual

for future reference.

Serial

Number

Decal

Model No. 831.21521.0

Serial No. 

• Assembly
• Operation
• Maintenance
• Part List and Drawing

Sears, Roebuck and Co., Hoffman Estates, IL 60179

BIKE EXERCISER 

User’s Manual

Summary of Contents for 831.21521.0

Page 1: ...is manual before using this equipment Keep this manual for future reference Serial Number Decal Model No 831 21521 0 Serial No Assembly Operation Maintenance Part List and Drawing Sears Roebuck and Co Hoffman Estates IL 60179 BIKE EXERCISER User s Manual ...

Page 2: ...pets away from the exercise cycle at all times 7 The exercise cycle should not be used by persons weighing more than 250 pounds 8 Wear appropriate clothes when exercising do not wear loose clothes that could become caught on the exercise cycle Always wear athletic shoes for foot protection 9 The pulse sensor is not a medical device Various factors including the user s move ment may affect the accu...

Page 3: ...69 4663 To help us assist you please note the product model number and serial number before calling The model number is 831 21521 0 The serial number can be found on a decal attached to the exercise cycle see the front cover of this manual Before reading further please familiarize yourself with the parts that are labeled in the drawing below REAR FRONT Seat Adjustment Knob Pedal Strap Console Puls...

Page 4: ...entheses below each drawing is the key number of the part from the PART LIST on page 14 The number following the key number is the quantity needed for assembly Note Some small parts may have been pre assembled If a part is not in the parts bag check to see if it has been pre assembled If a part is missing call toll free 1 888 533 1333 M10 x 75mm Carriage Bolt 51 4 M10 Nylon Locknut 63 4 M8 Nylon L...

Page 5: ... x 75mm Carriage Bolts 51 and two M10 Nylon Locknuts 63 See the inset drawing Loosen the Adjustment Knob 17 slide the Rear Frame 2 out of the Frame 1 and then retighten the Adjustment Knob Note After the exercise cycle is assembled adjust the Seat not shown to the proper position As you pedal there should be a slight bend in your knees when the pedals are in the farthest forward position Loosen th...

Page 6: ...ecommended Press the tab on the battery door and remove it Insert four bat teries into the Console as shown Make sure that the batteries are oriented as shown by the markings on the battery door Reattach the battery door 12 55 55 55 7 5 49 2 49 5 Have another person hold the Seat Frames 7 under the Rear Frame 2 as shown Attach the Seat Frames and the Seat 12 to the Rear Frame with four M6 x 42mm B...

Page 7: ... the Right Pedal not shown clock wise into the right arm of the Crank Important Tighten both Pedals as firmly as possible After using the exercise cycle for one week retighten the Pedals For best performance the Pedals must be kept tightened Adjust the left Pedal Strap 25 to the desired position and press the end of the Pedal Strap onto the tab on the Left Pedal 24 Adjust the right Pedal Strap not...

Page 8: ...s at the right To use a pulse program see page 10 To use a preset program see page 11 Before using the console make sure that batteries are installed see assembly step 6 on page 6 If there is a sheet of clear plastic on the display remove the plastic HOW TO USE THE MANUAL MODE Turn on the console To turn on the console press the Increase button or begin pedaling The pace guide will light for a mom...

Page 9: ...the handgrip pulse sensor remove them Next hold the handgrip pulse sensor with your palms resting on the contacts When your pulse is detected the heart shaped indicator in the lower half of the display will flash each time your heart beats and your heart rate will be shown For the most accurate heart rate reading continue to hold the handgrip pulse sensor for about 30 seconds Note If you continue ...

Page 10: ...ppear in the display instead of your heart rate Begin pedaling to start the program Pulse program 1 is 30 minutes long and is divided into several time periods of different lengths One target heart rate is programmed for each period Pulse program 2 is sixty minutes long you may choose to use only part of the pro gram The same target heart rate is programmed for the entire program During the progra...

Page 11: ...e display for a few seconds The resistance of the pedals will then automatically change to the resistance level that is programmed for the next period Note If the resistance level is too high or too low you can override it by pressing the Increase and Decrease buttons However when the current period ends the resistance level will automatical ly change if a different resistance level is pro grammed...

Page 12: ...first remove the Left Side Shield 9 Using an adjustable wrench turn the Left Pedal 24 clockwise and remove it Next remove the seven M4 x 16mm Screws 57 and the M4 x 25mm Screw 45 Then carefully remove the Left Side Shield With the left side shield removed locate the Reed Switch 43 Turn the Crank 31 until the Magnet 38 is aligned with the Reed Switch Next loosen but do not remove the indicated M4 x...

Page 13: ...rcise Aerobic Exercise If your goal is to strengthen your cardiovascular sys tem your exercise must be aerobic 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...

Page 14: ...ion Bracket 41 1 M8 Washer 42 1 Flywheel Washer 43 1 Reed Switch Wire 44 2 Handlebar Endcap 45 3 M4 x 25mm Screw 46 1 Resistance Cable 47 1 Return Spring 48 4 M6 x 38mm Button Screw 49 4 M6 x 42mm Button Screw 50 3 M4 x 16mm Flat Head Screw 51 4 M10 x 75mm Carriage Bolt 52 4 M4 x 16mm Round Head Screw 53 1 5mm Spacer 54 2 M8 x 70mm Button Bolt 55 8 M6 Washer 56 1 M8 x 20mm Button Bolt 57 12 M4 x 1...

Page 15: ... 62 43 58 58 57 57 17 63 63 51 45 38 31 62 3 1 2 4 18 19 18 19 11 11 6 7 8 5 9 10 14 15 20 23 28 29 39 39 40 41 44 44 57 57 57 45 48 48 49 49 49 49 50 55 55 55 55 55 55 54 59 54 59 60 60 60 60 61 64 21 59 59 57 57 57 61 42 61 53 56 50 65 EXPLODED DRAWING Model No 831 21521 0 R0405A ...

Page 16: ... 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 60...

Reviews: