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Sears
Cycling

Model # 502474921 Official Sears 27" lightweight bicycle

Here are the diagrams and repair parts for Official Sears 502474921 27" lightweight bicycle, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 137 parts  |
Brake Shoe 304202
#12

Caliper handbrake replacement parts-dia-compe diagram

Brake shoe

Part #304202

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

F Axle Set 303518

#NI

All parts diagram

F axle set

Part #303518

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

Eagle 300571

#NI

All parts diagram

Eagle

Part #300571

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

Screw 304238
#27

Caliper handbrake replacement parts-dia-compe diagram

Screw

Part #304238

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

Spk 12-1/32 303171
#18

Unit parts diagram

Spk 12-1/32

Part #303171

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

Bushing 304236
#25

Caliper handbrake replacement parts-dia-compe diagram

Bushing

Part #304236

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

Handlebar 28765C
#3

Unit parts diagram

Handlebar

Part #28765C

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

Rr Cal Brake 32058PA
#22A

Unit parts diagram

Rr cal brake

Part #32058PA

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

Hanger 304220
#15

Caliper handbrake replacement parts-dia-compe diagram

Hanger

Part #304220

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

Cable Bridge 304223
#13

Caliper handbrake replacement parts-dia-compe diagram

Cable bridge

Part #304223

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'…

Read more
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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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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How to maintain a treadmill

How to maintain a treadmill

Keep your treadmill in shape by following these tips.…

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