MTD
Gas Snowblower

Model # 312-640F000 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 312-640F000 snow thrower, 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 4 of 4 parts  |

Toro Lawn & Garden Equipment Carriage Bolt (replaces 910-0276, Af-44326) 710-0276
Toro lawn & garden equipment carriage bolt (replaces 910-0276, af-44326)

Part #710-0276

This item is not returnable
$5.17
16% OFF Phone Price : $6.17
In Stock
Sears Snowblower Shift Lever Spring 732-0193
#27

Snowthrowers diagram

Sears snowblower shift lever spring

Part #732-0193

This item is not returnable
$7.28
12% OFF Phone Price : $8.28
In Stock
Sears Lawn & Garden Equipment Flat Washer 736-0188
Sears lawn & garden equipment flat washer

Part #736-0188

This item is not returnable
$6.58
13% OFF Phone Price : $7.58
In Stock
Sears Lawn & Garden Equipment Washer 736-0174
Sears lawn & garden equipment washer

Part #736-0174

$10.46
16% OFF Phone Price : $12.46
In Stock

Symptoms for gas snowblowers

Choose a symptom to see related snowblower repairs.

Main causes: punctured tire, damaged rim…

Main causes: dirty carburetor, stale fuel…

Main causes: dirty carburetor, clogged fuel filter, dirty spark plug, incorrect valve lash, leaky engine gaskets…

Main causes: stale gas, clogged carburetor, clogged or broken fuel line, dirty spark plug, bad rewind starter, incorrect…

Main causes: snow build-up in chute, chute drive mechanism failure, bad chute control assembly…

Main causes: loose drive clutch cable, damaged drive clutch cable, worn friction disc, scraper blade scraping the ground…

Main causes: clogged chute, damaged auger blades, broken shear pins, worn auger belt, damaged gear case, engine problems…

Main causes: broken shear pins, worn or loose auger drive belt, auger drive cable failure, damaged auger, bad gear case…

Things to do: replace the spark plug, change the oil, rebuild the carburetor, adjust valve lash, adjust or replace the b…

Repair guides for gas snowblowers

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

How to replace a snowblower fuel filter

How to replace a snowblower fuel filter

Replace the fuel filter on your snowblower if it's clogged or damaged.…

Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower shave plate

How to replace a snowblower shave plate

Follow the 7 easy steps in this repair guide/video to replace a worn out shave plate on your snowblower.…

Repair difficulty
Time required
 15 minutes or less
How to replace a snowblower chute control gearbox assembly

How to replace a snowblower chute control gearbox assembly

Replace the chute control gearbox on your snowblower if it's stripped or damaged.…

Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your snowblowers

Use the advice and tips in these articles and videos to get the most out of your snowblower.

How to make your snowblower last longer

How to make your snowblower last longer

Learn the steps to take to adjust and maintain your snowblower so it lasts longer.…

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

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.…