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MTD
Gas Snowblower

Model # 31AS68EE799 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31AS68EE799 snow thrower, as well as links to manuals and error code tables, if available.

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Owner’s manual
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Model diagram and schematic

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Showing 10 of 245 parts  |
Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
#10

Gearbox/auger & housing diagram

Lawn & garden equipment cotter pin, 1/4- to 5/16-in

Part #714-04040

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Snowblower Auger Clutch Cable (replaces 946-04230a) 946-04230B
#17

Gearbox/auger & housing diagram

Snowblower auger clutch cable (replaces 946-04230a)

Part #946-04230B

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Yard Machines Lawn & Garden Equipment Lock Nut, 5/16-18 (replaces 753-05591) 712-04063
Yard machines lawn & garden equipment lock nut, 5/16-18 (replaces 753-05591)

Part #712-04063

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Toro Lawn & Garden Equipment Carriage Bolt (replaces 753-08024, 910-0451) 710-0451
Toro lawn & garden equipment carriage bolt (replaces 753-08024, 910-0451)

Part #710-0451

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Yard Machines Lawn & Garden Equipment Nut 712-04064
Yard machines lawn & garden equipment nut

Part #712-04064

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Yard Machines Lawn Tractor Flange Nut (replaces 00012173, Wd-129-103) 712-04065
Yard machines lawn tractor flange nut (replaces 00012173, wd-129-103)

Part #712-04065

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$5.27 | 
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Snowblower Skid Shoe 731-06439
#36

Gearbox/auger & housing diagram

Snowblower skid shoe

Part #731-06439

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Yard-man Snowblower Spring 732-04460
#14

Gearbox/auger & housing diagram

Yard-man snowblower spring

Part #732-04460

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Snowblower Clean-out Tool (replaces 731-2643) 931-2643
#18

Gearbox/auger & housing diagram

Snowblower clean-out tool (replaces 731-2643)

Part #931-2643

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Snowblower Speed Selector Cable, 23-1/2-in (replaces 746-04397, 746-04397a) 946-04397A
#28

Upper & lower chute diagram

Snowblower speed selector cable, 23-1/2-in (replaces 746-04397, 746-04397a)

Part #946-04397A

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

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Why won't my snowblower throw snow far enough?

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

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

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Why won't my snowblower start?

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

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Why doesn't my snowblower self propel?

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

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Why won't my snowblower chute turn?

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

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Why won't my snowblower clear snow well?

Main causes: clogged chute, snow build-up in auger housing, broken auger shear pins, auger drive belt needs adjustment, …

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 15 minutes or less
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To prevent snowblower auger and shave plate damage, adjust the skid shoes regularly to keep the shave plate ¼-inch high.…

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 15 minutes or less
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