Cumulus
Office

Model # 486SX/20 Official Cumulus computer

Here are the diagrams and repair parts for Official Cumulus 486SX-20 computer, as well as links to manuals and error code tables, if available.

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  • 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 23 parts  |

Man Wordst 9090256

#NI

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Man wordst

Part #9090256

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

Ide I/o 9020350

#NI

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Ide i/o

Part #9020350

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

125mb Hd Dr 2030042

#NI

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125mb hd dr

Part #2030042

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

Bracket 6290151

#NI

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Bracket

Part #6290151

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

Board 9020668

#NI

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Board

Part #9020668

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

1.2mg Flpy 6500088

#NI

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1.2mg flpy

Part #6500088

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

Flpy Du 6500087

#NI

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Flpy du

Part #6500087

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

Man Micromon 9090259

#NI

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Man micromon

Part #9090259

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

Ms Dos 5.0 2050062-1

#NI

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Ms dos 5.0

Part #2050062-1

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

2mb Ram; 80mb Hd; 3.5" & 5.25" Fd Options N/P

#NI

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2mb ram; 80mb hd; 3.5" & 5.25" fd options

Part #N/P

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

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

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

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

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

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

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 replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

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

How to replace a lawn mower drive cable

The drive cable engages the transmission to spin the drive wheels and move the mower across the grass. Replace the drive…

Repair difficulty
Time required
 60 minutes or less
How to replace a lawn mower starter rope

How to replace a lawn mower starter rope

These step-by-step instructions show how to replace a broken starter pull rope on a walk-behind lawn mower.…

Repair difficulty
Time required
 30 minutes or less

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