Lifestyler
Fitness & Exercise

Model # 831159420 Official Lifestyler system 300

Here are the diagrams and repair parts for Official Lifestyler 831159420 system 300, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

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Showing 10 of 93 parts  |

Puly,3.5"od, 115370
#27

Unit parts diagram

Puly,3.5"od,

Part #115370

Replaced by #230475

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Manufacturer substitution
This part replaces 115370. Substitute parts can look different from the original.
$43.99
12% OFF Phone Price : $49.99
In Stock
Black & Decker Exercise Equipment Nut 012149
#33

Unit parts diagram

Black & decker exercise equipment nut

Part #012149

This item is not returnable
In Stock
Black & Decker Treadmill Nut 119425
#41

Unit parts diagram

Black & decker treadmill nut

Part #119425

This item is not returnable
In Stock
Healthrider Weight 121591
#4

Unit parts diagram

Healthrider weight

Part #121591

In Stock
Reebok Treadmill Bolt 112001
#45

Unit parts diagram

Reebok treadmill bolt

Part #112001

This item is not returnable
In Stock
Reebok Exercise Equipment Hex Nut 012139
#71

Unit parts diagram

Reebok exercise equipment hex nut

Part #012139

This item is not returnable
In Stock
Carriage Bolt 121568
#48

Unit parts diagram

Carriage bolt

Part #121568

This item is not returnable
In Stock
Nut,hex,blk, 112004
#87

Unit parts diagram

Nut,hex,blk,

Part #112004

This item is not returnable
In Stock
Nordictrack Exercise Equipment Push Nut, 1-in 108778
#34

Unit parts diagram

Nordictrack exercise equipment push nut, 1-in

Part #108778

This item is not returnable
In Stock
Reebok Internal Round End Cap, 3/4-in 115366
#84

Unit parts diagram

Reebok internal round end cap, 3/4-in

Part #115366

This item is not returnable
In Stock

Symptoms for elliptical machines

Choose a symptom to see related elliptical repairs.

Main causes: leveling feet need to be adjusted, loose frame bolts, unstable flooring…

Main causes: dead batteries, power supply failure, bad wiring connections, faulty control console…

Main causes: loose fastening bolts, damaged handle bars…

Main causes: weak batteries, loose wires, faulty control console…

Main causes: bad resistance motor, faulty control console, wiring failure…

Main causes: faulty reed switch, reed switch needs adjustment, wiring failure, bad control console…

Main cause: lack of lubrication on pivot points…

Main causes: dirty heart rate sensors, wiring failure, bad control console…

Repair guides for elliptical machines

These step-by-step repair guides will help you safely fix what’s broken on your elliptical.

How to replace an elliptical resistance motor

How to replace an elliptical resistance motor

If the resistance motor is not changing the resistance on your elliptical, replace it using these steps.…

Repair difficulty
Time required
 15 minutes or less
How to adjust an elliptical reed switch

How to adjust an elliptical reed switch

If the console doesn't display the correct speed on your elliptical, adjust the reed switch using these steps.…

Repair difficulty
Time required
 15 minutes or less
How to replace an elliptical console

How to replace an elliptical console

If the console on your elliptical doesn't work, replace it by following these 3 easy steps.…

Repair difficulty
Time required
 15 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 elliptical.

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.…