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Craftsman
Tiller

Model # 74778551 Official Craftsman rotary chopper

Here are the diagrams and repair parts for Official Craftsman 74778551 rotary chopper, 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 49 parts  |
Bearing Cup 31305
#14

Lift, shroud & tail wheel ass'y diagram

Bearing cup

Part #31305

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

Shroud Weld't 12450
#5

Lift, shroud & tail wheel ass'y diagram

Shroud weld't

Part #12450

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

Washer 12492
#23

Gear box and rotor ass'y diagram

Washer

Part #12492

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

Spring Pin 31138D
#9

Universal ass'y diagram

Spring pin

Part #31138D

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

Bolt 31042
#22

Gear box and rotor ass'y diagram

Bolt

Part #31042

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

Grease Seal 31303
#12

Lift, shroud & tail wheel ass'y diagram

Grease seal

Part #31303

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

Splnded Yoke 31138A
#10

Universal ass'y diagram

Splnded yoke

Part #31138A

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

Retaining Ring 12480
#4

Gear box and rotor ass'y diagram

Retaining ring

Part #12480

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

Bearing Retainer Cap 12491
#15

Gear box and rotor ass'y diagram

Bearing retainer cap

Part #12491

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

Wheel & Tire Only (less Bearings) 12471
#15

Lift, shroud & tail wheel ass'y diagram

Wheel & tire only (less bearings)

Part #12471

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

Most common symptoms to help you fix your tillers

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Main causes: clutch cable problems, faulty transmission…

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Why does my tiller turn the soil poorly?

Main causes: damaged tines, broken clevis pins, worn drive belt, faulty transmission, clutch cable problems, improper de…

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Why won't my tillers wheels or tines turn?

Main causes: worn or broken drive belts, bad transmission, clutch cable problems…

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Why does my tiller's engine leak oil or gas?

Main causes: leaky engine head gasket, damaged sump gasket, damaged oil drain plug seal, loose or cracked fuel line, lea…

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Why do my tiller's wheels turn but the tines don't?

Main causes: broken shaft clevis pins, transmission failure…

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Why does my tiller's engine run roughly or misfire?

Main causes: dirty carburetor, engine needs tune up, stale gas…

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Why won't my tiller's engine start?

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The recoil starter spins the engine when you pull the starter rope, and the rope retracts when released. If the recoil s…

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Repair difficulty
Time required
 15 minutes or less

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