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Model # 8712810 Official Sears portable typewriter

Here are the diagrams and repair parts for Official Sears 8712810 portable typewriter, 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 604 parts  |
Bedplate 440122
#1A

Carriage diagram

Bedplate

Part #440122

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

Bearing 437481-01
#14

Power diagram

Bearing

Part #437481-01

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

Shaft 416791-01
#22

Typebar diagram

Shaft

Part #416791-01

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

Bracket 433720
#9

Half space diagram

Bracket

Part #433720

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

Retainer 405500
#29

Jacket diagram

Retainer

Part #405500

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

Bar Spring 411085-01
#4

Keylever-sublever-touch control electric models diagram

Bar spring

Part #411085-01

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

Pulley 435022
#4

Power diagram

Pulley

Part #435022

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

Cover 407831
#25A

Jacket diagram

Cover

Part #407831

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

Lever 428150
#11

Ribbon actuation diagram

Lever

Part #428150

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

Ball Race L 422035-01
Ball race l

Part #422035-01

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…

Read more
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

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