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Roadmaster
Treadmill

Model # 9896SR Official Roadmaster 3400 programmable treadmill

Here are the diagrams and repair parts for Official Roadmaster 9896SR 3400 programmable treadmill, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 74 parts  |
Nylon Lock Nut HH1256T
Nylon lock nut

Part #HH1256T

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

Hex Bolt HH0824T
Hex bolt

Part #HH0824T

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

Switch HH4514T
#24

Console and upright assembly diagram

Switch

Part #HH4514T

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

Roller Wheel MM6504T
#12

Walking belt assembly diagram

Roller wheel

Part #MM6504T

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

Motor Mount KK6071T
#63

Walking belt assembly diagram

Motor mount

Part #KK6071T

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

Top Console KK1098T
#23

Console and upright assembly diagram

Top console

Part #KK1098T

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

Motor KK0017T
#61A

Walking belt assembly diagram

Motor

Part #KK0017T

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

Hex Bolt HH1318T
#8

Walking belt assembly diagram

Hex bolt

Part #HH1318T

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

Power Cord HH4596T

#NI

All parts diagram

Power cord

Part #HH4596T

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

Lock Washer HH1207T
#40

Console and upright assembly diagram

Lock washer

Part #HH1207T

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…

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Repair difficulty
Time required
 30 minutes or less

Effective articles & videos to help repair your fitness & exercise

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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