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Fitness & Exercise

Model # 831150320 Official Proform c740

Here are the diagrams and repair parts for Official Proform 831150320 c740, 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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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 79 parts  |
Black & Decker Exercise Equipment Lubricating Grease 104838

#NI01

All parts diagram

Black & decker exercise equipment lubricating grease

Part #104838

This item is not returnable
$3.89 | 
20% OFF Phone Price : $4.89
In Stock
Black & Decker Treadmill Washer 014063
#55

Crossbar/base/seat/frame diagram

Black & decker treadmill washer

Part #014063

This item is not returnable
$2.49 | 
29% OFF Phone Price : $3.49
In Stock
Toyostove Elliptical Nut 148710
#56

Crossbar/base/seat/frame diagram

Toyostove elliptical nut

Part #148710

This item is not returnable
$2.16
In Stock
Nut,hex Nyl 012077
#69

Crossbar/base/seat/frame diagram

Nut,hex nyl

Part #012077

Replaced by #148710

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Manufacturer substitution
This part replaces 012077. Substitute parts can look different from the original.
This item is not returnable
$2.16
In Stock
Internal Round End Cap, 1-in 120733
#20

Crossbar/base/seat/frame diagram

Internal round end cap, 1-in

Part #120733

This item is not returnable
$2.16
In Stock
Nordictrack Collar 122321
#24

Crossbar/base/seat/frame diagram

Nordictrack collar

Part #122321

This item is not returnable
$2.16
In Stock
Elliptical Washer 014132
#53

Crossbar/base/seat/frame diagram

Elliptical washer

Part #014132

This item is not returnable
$2.16
In Stock
Button Bolt, M10 X 88 180009
#42

Crossbar/base/seat/frame diagram

Button bolt, m10 x 88

Part #180009

This item is not returnable
$5.99
In Stock
Proform Om,150320 199559

#NI07

All parts diagram

Proform om,150320

Part #199559

This item is not returnable
$4.49
In Stock
Nordictrack Exercise Equipment Screw 130302
#59

Crossbar/base/seat/frame diagram

Nordictrack exercise equipment screw

Part #130302

This item is not returnable
$2.16
In Stock

Symptoms for elliptical machines

Choose a symptom to see related elliptical repairs.

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Why does my elliptical make squeaking noises?

Main cause: lack of lubrication on pivot points…

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Why does my elliptical display the wrong speed?

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

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Why can't my elliptical detect my heart rate?

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

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Why won't my elliptical's console turn on?

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

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How do I tighten elliptical handle bars?

Main causes: loose fastening bolts, damaged handle bars…

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Why is my elliptical's console display dim?

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

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Why does my elliptical rock?

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

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Why won't my elliptical's pedal resistance change?

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

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Repair guides for elliptical machines

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

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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.…

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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.…

Read more
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.…

Read more
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.

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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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