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Sears
Cycling

Model # 502479830 Official Sears 20" spyder bicycle

Here are the diagrams and repair parts for Official Sears 502479830 20" spyder bicycle, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 61 parts  |
Sprocket 300424
#17C

Shimano rear hub diagram

Sprocket

Part #300424

The manufacturer no longer makes this part, and there's no substitute part

R Wheel Assy 303013C
#21

Unit parts diagram

R wheel assy

Part #303013C

The manufacturer no longer makes this part, and there's no substitute part

Spk 7-9/16 303155
#10

Unit parts diagram

Spk 7-9/16

Part #303155

The manufacturer no longer makes this part, and there's no substitute part

Axle Mx 303520
#11

Unit parts diagram

Axle mx

Part #303520

The manufacturer no longer makes this part, and there's no substitute part

F Wheel 303005C
#9

Unit parts diagram

F wheel

Part #303005C

The manufacturer no longer makes this part, and there's no substitute part

Frame 34160
#1A

Unit parts diagram

Frame

Part #34160

The manufacturer no longer makes this part, and there's no substitute part

Sprocket 300423
#17B

Shimano rear hub diagram

Sprocket

Part #300423

The manufacturer no longer makes this part, and there's no substitute part

Grip Black 32766
#2A

Unit parts diagram

Grip black

Part #32766

The manufacturer no longer makes this part, and there's no substitute part

Wheel Retain 32375Z
#12

Unit parts diagram

Wheel retain

Part #32375Z

The manufacturer no longer makes this part, and there's no substitute part

Bearing Set 303384
#7

Unit parts diagram

Bearing set

Part #303384

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for treadmills

Choose a symptom to see related treadmill repairs.

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Why does my treadmill's walking belt slow down?

Main causes: damaged walking belt, improper belt tension, lack of belt lubricant, bad drive motor…

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Why is my treadmill's walking belt slipping?

Main causes: damaged walking belt, improper belt tension, bad roller bearing…

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Why is my treadmill's walking belt off center?

Main causes: rear roller out of alignment, damaged walking belt, bad roller…

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Why won't my treadmill start even though the console display works?

Main causes: missing safety key, bad control console, wiring failure, faulty motor control board, bad drive motor…

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Why is my treadmill's heart rate sensor not accurate?

Main causes: faulty sensors, wiring failure, bad control console…

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Why does my treadmill have no display?

Main causes: bad control console, wiring failure, bad motor control board…

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Why won't my treadmill power up?

Main causes: no power, bad power cord, tripped or faulty overload switch, bad power switch, wiring failure, bad motor co…

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Repair guides for treadmills

These step-by-step repair guides will help you safely fix what’s broken on your treadmill.

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How to replace a treadmill motor controller

How to replace a treadmill motor controller

Your treadmill motor won't run with a defective motor controller. Replace the motor controller if it doesn't operate the…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill drive motor

How to replace a treadmill drive motor

A defective drive motor won't run when activated by the motor controller. Replace the treadmill drive motor if it doesn'…

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Repair difficulty
Time required
 15 minutes or less
How to replace a treadmill walking board

How to replace a treadmill walking board

A worn-out walking board creates friction with the walking belt and causes the belt to slow down during use. Replace the…

Read more
Repair difficulty
Time required
 30 minutes or less

Articles and videos for treadmills

Use the advice and tips in these articles and videos to get the most out of your treadmill.

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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