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MTD
Gas Snowblower

Model # 31AS6FEF729 Official MTD snow thrower

Here are the diagrams and repair parts for Official MTD 31AS6FEF729 snow thrower, 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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Showing 10 of 196 parts  |
Lawn & Garden Equipment Cotter Pin, 1/4- To 5/16-in 714-04040
#10

Auger gearbox and housing diagram

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

Part #714-04040

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Snowblower Auger Clutch Cable 746-04230
Snowblower auger clutch cable

Part #746-04230

Replaced by #946-04230B

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Manufacturer substitution
This part replaces 746-04230. Substitute parts can look different from the original.
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$26.49 | 
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Troybilt Snowblower Shear Pin (replaces 738-04124) 738-04124A
#21

Auger gearbox and housing diagram

Troybilt snowblower shear pin (replaces 738-04124)

Part #738-04124A

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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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$4.53 | 
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Shave Plate 790-00120
#35A

Auger gearbox and housing diagram

Shave plate

Part #790-00120

Replaced by #790-00120-0637

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Manufacturer substitution
This part replaces 790-00120. Substitute parts can look different from the original.
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$35.94 | 
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Ace Lawn & Garden Equipment Self-tapping Bolt, 5/16-18 X 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, Gw-7101260) 710-1260A
#42

Handles/upper chute diagram

Ace lawn & garden equipment self-tapping bolt, 5/16-18 x 3/4-in (replaces 1724491, 1740496, 1909304, 910-1260a, gw-7101260)

Part #710-1260A

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Clutch Cable 746-04229
#27

Wheels and belt drives diagram

Clutch cable

Part #746-04229

Replaced by #946-04229B

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Manufacturer substitution
This part replaces 746-04229. Substitute parts can look different from the original.
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$29.20 | 
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Shave Plate 790-00121
#35B

Auger gearbox and housing diagram

Shave plate

Part #790-00121

Replaced by #790-00121-0637

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Manufacturer substitution
This part replaces 790-00121. Substitute parts can look different from the original.
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Shave Plate 790-00118
#35C

Auger gearbox and housing diagram

Shave plate

Part #790-00118

Replaced by #790-00118-0637

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Manufacturer substitution
This part replaces 790-00118. Substitute parts can look different from the original.
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$41.50 | 
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Skid Shoe 784-5580
#36

Auger gearbox and housing diagram

Skid shoe

Part #784-5580

Replaced by #784-5580-0637

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Manufacturer substitution
This part replaces 784-5580. Substitute parts can look different from the original.
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$22.25 | 
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What should I do about a damaged snowblower tire?

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Why does my snowblower stop running after a few seconds?

Main causes: dirty carburetor, stale fuel…

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Why does my snowblower engine run rough?

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 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 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 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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Why doesn't my snowblower auger turn?

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

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How do I tune up my snowblower?

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

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How to replace a snowblower chute control gearbox assembly

How to replace a snowblower chute control gearbox assembly

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