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Sears
Cycling

Model # 502479940 Official Sears 20" spyder bicycle

Here are the diagrams and repair parts for Official Sears 502479940 20" spyder bicycle, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 64 parts  |
F Wheel 303005C
#9

Unit parts diagram

F wheel

Part #303005C

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

Axle Mx 303520
#11

Unit parts diagram

Axle mx

Part #303520

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

Sprocket 300424
#21C

Shimano rear hub diagram

Sprocket

Part #300424

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

Spk 7-9/16 303155
Spk 7-9/16

Part #303155

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

Grip 34139
#2A

Unit parts diagram

Grip

Part #34139

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

Screw 26X174
#31A

Unit parts diagram

Screw

Part #26X174

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

Sprocket 32227C
#15

Unit parts diagram

Sprocket

Part #32227C

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

Hub Cone 300403
#18

Shimano rear hub diagram

Hub cone

Part #300403

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

Saddle 98X179
#24A

Unit parts diagram

Saddle

Part #98X179

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

Symptoms for water softeners

Choose a symptom to see related water softener repairs.

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Why is there no display on my water softener?

Main causes: lack of electrical power, bad power transformer, faulty timer…

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Why does my water softener leak water?

Main causes: loose water line connections, cracked water-carrying components, bad rotor valve seals…

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Why isn't my water softener softening my water?

Main causes: empty salt tank, salt bridge, depleted resin, clogged or damaged venturi, broken rotor position switch, fai…

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Why isn't my water softener using salt?

Main causes: salt bridge inside the salt tank, bad timer, valve motor failure, faulty rotor valve, clogged venturi…

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Why are water softener resin beads in my water?

Main causes: broken resin tank screen, bad resin tank seals, cracked upper distributor in resin tank…

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Why is my softened water salty?

Main causes: clogged drain hose, faulty rotor valve, leaky rotor valve seals…

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Why isn't my water softener meter working?

Main causes: broken water flow meter, faulty timer, water flow to softener is bypassed…

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Why does my water softener overflow?

Main causes: faulty brine valve assembly, bad rotor valve…

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Repair guides for water softeners

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

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How to replace a water softener rotor position switch

How to replace a water softener rotor position switch

The rotor position switch detects the position of the valve rotor. If the rotor position switch fails, follow these step…

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Repair difficulty
Time required
 30 minutes or less
How to replace a water softener timer

How to replace a water softener timer

The timer is the control board you use to program the water softener. If the timer isn’t accepting commands when you pus…

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Repair difficulty
Time required
 15 minutes or less
How to replace a water softener valve motor

How to replace a water softener valve motor

The valve motor rotates the valve rotor to operate the water softener. If the water softener valve motor fails, follow t…

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Repair difficulty
Time required
 30 minutes or less

Articles and videos for water softeners

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

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Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

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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 clean a water softener

How to clean a water softener

Keeping a water softener clean inside and out improves operation and appearance.…

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