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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
Flywheel KK-6184-T
#11

Frame assembly diagram

Flywheel

Part #KK-6184-T

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

Pick-up QQ-1513-T
#12

Frame assembly diagram

Pick-up

Part #QQ-1513-T

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

Nylock U-6 HH-1296-T
#33

Frame assembly diagram

Nylock u-6

Part #HH-1296-T

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

Nut HH-1833-T
#25

Frame assembly diagram

Nut

Part #HH-1833-T

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

Retainer HH-8219-T
#14

Belt roller assembly diagram

Retainer

Part #HH-8219-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

Buckle MM-7032-T
#8

Frame assembly diagram

Buckle

Part #MM-7032-T

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

Outer Plate 38-0173-T
#8

Pole and console assembly diagram

Outer plate

Part #38-0173-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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