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Roadmaster
Treadmill

Model # 8308SR Official Roadmaster alpine trails

Here are the diagrams and repair parts for Official Roadmaster 8308SR alpine trails, 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 95 parts  |
Plate LL-0298-T
#7

Pole and console assembly diagram

Plate

Part #LL-0298-T

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

Bushing HH-6055-T
#5

Pole and console assembly diagram

Bushing

Part #HH-6055-T

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

Screw HH-1530-T
Screw

Part #HH-1530-T

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

Bolt HH-1529-T
#20

Frame assembly diagram

Bolt

Part #HH-1529-T

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

Brake Pad MM-0131-T
#6

Pole and console assembly diagram

Brake pad

Part #MM-0131-T

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

Spacer MM-0584-T
#13

Belt roller assembly diagram

Spacer

Part #MM-0584-T

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

Sq Washer HH-1775-T
#5

Frame assembly diagram

Sq washer

Part #HH-1775-T

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

Belt Guide LL-0257-T
#7

Belt roller assembly diagram

Belt guide

Part #LL-0257-T

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

Bearing HH-8226-T
#20

Belt roller assembly diagram

Bearing

Part #HH-8226-T

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

Foot KK-1321-T
#4

Belt roller assembly diagram

Foot

Part #KK-1321-T

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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