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Craftsman
Gas Leaf Blower

Model # 636798691 Official Craftsman 37.7-cc gas brushwacker

Here are the diagrams and repair parts for Official Craftsman 636798691 37.7-cc gas brushwacker, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 152 parts  |
Leaf Blower Screw 0043104100
#55

Crankcase diagram

Leaf blower screw

Part #0043104100

The manufacturer no longer makes this part, and there's no substitute part

Screw 00431-0510-0
#52

Crankcase diagram

Screw

Part #00431-0510-0

The manufacturer no longer makes this part, and there's no substitute part

Rope A57120950000
#32

Crankcase diagram

Rope

Part #A57120950000

The manufacturer no longer makes this part, and there's no substitute part

Screw CW2-0414
#31

Carburetor diagram

Screw

Part #CW2-0414

The manufacturer no longer makes this part, and there's no substitute part

Spring VM15/24A
#7

Carburetor diagram

Spring

Part #VM15/24A

The manufacturer no longer makes this part, and there's no substitute part

Pin VM15/264
#16

Carburetor diagram

Pin

Part #VM15/264

The manufacturer no longer makes this part, and there's no substitute part

Piston EC04-206/2B
#15

Crankcase diagram

Piston

Part #EC04-206/2B

The manufacturer no longer makes this part, and there's no substitute part

Screw Assembly 00436-0410-0
#34

Carburetor diagram

Screw assembly

Part #00436-0410-0

The manufacturer no longer makes this part, and there's no substitute part

Spring A60003200000
#27

Crankcase diagram

Spring

Part #A60003200000

The manufacturer no longer makes this part, and there's no substitute part

Packing B EC05A-6111
#49

Volute case diagram

Packing b

Part #EC05A-6111

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for gas leaf blowers

Choose a symptom to see related leaf blower repairs.

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Why does a leaf blower vibrate excessively?

Main causes: damaged fan blade, engine needs a tune up, dirty carburetor…

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What should I do if my leaf blower engine smokes?

Main causes: mixing too much 2-cycle oil with the gas, dirty air filter, clogged carburetor, engine needs tune up…

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What should I do if my leaf blower leaks gas?

Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank…

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Why does my leaf blower run roughly?

Main causes: stale fuel, dirty air filter, bad spark plug, cracked fuel lines, clogged carburetor…

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Why won't my leaf blower start?

Main causes: bad gas, clogged air filter, cracked fuel lines, clogged fuel filter, dirty carburetor, bad spark plug, wor…

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Repair guides for gas leaf blowers

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

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How to rebuild a leaf blower carburetor

How to rebuild a leaf blower carburetor

If the leaf blower engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow …

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Repair difficulty
Time required
 60 minutes or less
How to replace a leaf blower carburetor

How to replace a leaf blower carburetor

The carburetor could be the problem If the leaf blower engine won't start even though there's fuel in the tank. Follow t…

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Repair difficulty
Time required
 15 minutes or less
How to replace leaf blower fuel lines

How to replace leaf blower fuel lines

Leaf blower fuel lines deteriorate with time and eventually can split or crack. You can remove and replace them yourself…

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Repair difficulty
Time required
 60 minutes or less

Articles and videos for gas leaf blowers

Use the advice and tips in these articles to get the most out of your leaf blower.

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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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Preparing a leaf blower for long-term storage

Preparing a leaf blower for long-term storage

Follow these easy steps to prepare you leaf blower for long-term storage.…

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Leaf blower common questions

Leaf blower common questions

From what kind of fuel to use to why your leaf blower won't start, here are the questions our experts hear most often ab…

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