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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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ALL PARTS
Showing 10 of 95 parts  |
Lock Nut HH-1288-T
#25

Belt roller assembly diagram

Lock nut

Part #HH-1288-T

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

Washer HH-1222-T
#46

Frame assembly diagram

Washer

Part #HH-1222-T

Replaced by #STD551025

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Manufacturer substitution
This part replaces HH-1222-T. Substitute parts can look different from the original.
This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Frame 38-0183-T
#2

Frame assembly diagram

Frame

Part #38-0183-T

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

Grommet MM-6616-T
#14

Frame assembly diagram

Grommet

Part #MM-6616-T

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

Screw HH-1046-T
#28

Frame assembly diagram

Screw

Part #HH-1046-T

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

Nylon Belt KK-3072-T
#40

Frame assembly diagram

Nylon belt

Part #KK-3072-T

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

Batteries QQ-1004-T
#19

Pole and console assembly diagram

Batteries

Part #QQ-1004-T

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

Guard MM-1556-T
#30

Frame assembly diagram

Guard

Part #MM-1556-T

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

Roller Shaft HH-4076-T
#8

Belt roller assembly diagram

Roller shaft

Part #HH-4076-T

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

Tab/washer HH-1227-T
#39

Frame assembly diagram

Tab/washer

Part #HH-1227-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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