Model # 643721080 Official Craftsman two-person post hole digger

Here are the diagrams and repair parts for Official Craftsman 643721080 two-person post hole digger, 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 10 of 66 parts |

Screw Bit, Earth, 4 In Thru 6 In Auger (643.72112 Thru 643.72113 Augers) P601

#7A

Blades diagram

Screw bit, earth, 4 in thru 6 in auger (643.72112 thru 643.72113 augers)

Part #P601

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

Handle, Operator, With Throttl Control, Complete 3109A

#38

Replacement parts diagram

Handle, operator, with throttl control, complete

Part #3109A

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

#35

Replacement parts diagram

Swivel, control, complete

Part #WS277

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

#12

Replacement parts diagram

Clutch shoe assembly

Part #3017

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

Replacement parts diagram

Gasket

Part #230-0110

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

#34

Replacement parts diagram

Throttle return spring

Part #3109AB

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

Screw, Cap, 1/4" X 2 1/4" Unc, Plated, Grade 5 STD522522

#25

Replacement parts diagram

Screw, cap, 1/4" x 2 1/4" unc, plated, grade 5

Part #STD522522

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

Replacement parts diagram

Nut, hexm 1/4" unc, plated

Part #STD541025

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

#NI

All parts diagram

Owner's manual

Part #OM721080

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

Blade, Earth 10 Inch Auger (643.72115 Auger) E310

#5C

Blades diagram

Blade, earth 10 inch auger (643.72115 auger)

Part #E310

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

Symptoms for gas pressure washers

Choose a symptom to see related pressure washer repairs.

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Why won't my pressure washer mix in the detergent?

Main causes: using a high-pressure spray tip when applying detergent, clogged siphon tube, chemical injection system fai…

Why is smoke coming from the pressure washer's exhaust?

Main causes: overfilling engine with oil, improper fuel/air mixture, choke system problems, dirty carburetor, engine nee…

Why won't the pressure washer starter rope retract?

Main causes: broken recoil spring, damaged recoil starter…

Why does my pressure washer's engine lose power?

Main causes: dirty air filter, stale fuel, clogged or dirty carburetor, bad unloader valve…

Why is the spray from my pressure washer weak?

Main causes: insufficient water supply, clogged water inlet screen, clogged pressure hose, faulty pump check valves, stu…

Why doesn't my pressure washer recoil starter work?

Main causes: damaged recoil starter, oil inside cylinder, locked up engine piston…

Why does my pressure washer spray too hard?

Main causes: faulty unloader valve, bad pressure regulator…

Why won't my pressure washer engine start?

Main causes: stale fuel, gummed up carburetor, engine needs tune up, throttle and choke controls need adjustment, bad re…

Why does water spray out of my pressure washer's pressure relief valve?

Main causes: pump running for more than 5 minutes when the spray wand isn't being used, faulty pressure relief valve, ba…

Repair guides for gas pressure washers

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

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How to install a pressure washer check valve kit

Air in the inlet water supply can damage the check valves. If the pump won’t build up pressure due to damaged check valv…

Repair difficulty

Time required

120 minutes or less

How to install a pressure washer O-ring kit

O-rings seal fittings on the pressure washer pump. Damaged seals allow water to leak from the pump. Follow these steps t…

Repair difficulty

Time required

45 minutes or less

How to install a pressure washer chemical injection kit

The chemical injection valve draws detergent into the pump. If it’s not drawing detergent, use a repair kit to replace t…

Repair difficulty

Time required

15 minutes or less

Articles and videos for gas pressure washers

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

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Model # 643721080 Official Craftsman two-person post hole digger

Model diagram and schematic

SEARCH WITHIN THIS MODEL

Symptoms for gas pressure washers

Why won't my pressure washer mix in the detergent?

Why is smoke coming from the pressure washer's exhaust?

Why won't the pressure washer starter rope retract?

Why does my pressure washer's engine lose power?

Why is the spray from my pressure washer weak?

Why doesn't my pressure washer recoil starter work?

Why does my pressure washer spray too hard?

Why won't my pressure washer engine start?

Why does water spray out of my pressure washer's pressure relief valve?

Repair guides for gas pressure washers

How to install a pressure washer check valve kit

How to install a pressure washer O-ring kit

How to install a pressure washer chemical injection kit

Articles and videos for gas pressure washers

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Choosing the correct spray tip for a pressure washer

Solving pressure washer problems

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