Sears
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Model # 72858821 Official Sears calculator

Here are the diagrams and repair parts for Official Sears 72858821 calculator, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

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Showing 10 of 29 parts  |

Housing 50029

#NI

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Housing

Part #50029

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

Pin 05036

#11

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Pin

Part #05036

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

Snap Cap 10615

#12C

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Snap cap

Part #10615

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

Keyboard 10627

#12E

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Keyboard

Part #10627

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

Instruction Book 16585

#NI

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Instruction book

Part #16585

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

Nameplate 15543

#10

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Nameplate

Part #15543

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

Tag 15595

#NI

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Tag

Part #15595

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

Screw 06525

#4

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Screw

Part #06525

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

Nameplate 15701

#2

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Nameplate

Part #15701

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

Screw 06526

#1

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Screw

Part #06526

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

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to rebuild a lawn mower carburetor

How to rebuild a lawn mower carburetor

The carburetor mixes air with fuel to drive the piston. Rebuild the carburetor if it's clogged or leaks.…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower recoil starter on an OHV engine

How to replace a lawn mower recoil starter on an OHV engine

Replace the recoil starter if it doesn't move when you pull the starter rope.…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower wheel

How to replace a lawn mower wheel

Learn how replace a damaged wheel on a walk-behind lawn mower—it's a quick, easy fix.…

Repair difficulty
Time required
 15 minutes or less

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