Craftsman
Gas Leaf Blower

Model #636798691 Official Craftsman 37.7-cc gas brushwacker

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

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    Showing 10 of 152 parts

    Washer#30

    Volute case Diagram

    Washer

    Part #00311-1000-0

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

    Leaf Blower Screw#55

    Crankcase Diagram

    Leaf blower screw

    Part #0043104100

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

    Pin#16

    Carburetor Diagram

    Pin

    Part #VM15/264

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

    Spring#27

    Crankcase Diagram

    Spring

    Part #A60003200000

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

    Screw#52

    Crankcase Diagram

    Screw

    Part #00431-0510-0

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

    Nut

    See All Related Diagrams

    Nut

    Part #00218-0600-0

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

    Hose Clamp#7

    Optional accessories Diagram

    Hose clamp

    Part #NF40-7120

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

    Nut#27

    Volute case Diagram

    Nut

    Part #00227-0400-0

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

    Screw#30

    Crankcase Diagram

    Screw

    Part #141051251002

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

    Screw Assembly#34

    Carburetor Diagram

    Screw assembly

    Part #00436-0410-0

    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.

    Main causes: cracked fuel lines, leaky carburetor seals, damaged fuel tank cap, cracked fuel tank
    Main causes: bad gas, clogged air filter, cracked fuel lines, clogged fuel filter, dirty carburetor, bad spark plug, worn piston rings
    Main causes: stale fuel, dirty air filter, bad spark plug, cracked fuel lines, clogged carburetor
    Main causes: damaged fan blade, engine needs a tune up, dirty carburetor
    Main causes: mixing too much 2-cycle oil with the gas, dirty air filter, clogged carburetor, engine needs tune up

    Repair guides for gas leaf blowers

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

    August 1, 2013
    By Lyle Weischwill
    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 these instructions to replace the carburetor.

    Repair difficulty
    Time required
     15 minutes or less
    August 1, 2013
    By Lyle Weischwill
    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, following these instructions.

    Repair difficulty
    Time required
     60 minutes or less
    August 1, 2013
    By Lyle Weischwill
    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 these instructions to rebuild it in less than 30 minutes.

    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.

    June 29, 2022

    Top questions about Sears and Sears PartsDirect

    By Lyle Weischwill

    Get answers to frequently asked questions about Sears and Sears PartsDirect.

    May 20, 2017

    Preparing a leaf blower for long-term storage

    By Lyle Weischwill

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

    January 1, 2016

    6 easy steps for maintaining a leaf blower

    By Lyle Weischwill

    Follow this advice for caring for your leaf blower.