Sears
Toys & Games

Model # 78661221 Official Sears gym set

Here are the diagrams and repair parts for Official Sears 78661221 gym set, 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 64 parts  |

Lower Drop 92221M
#2

Lawn swing assembly diagram

Lower drop

Part #92221M

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

Nylon Bush 1472P
Nylon bush

Part #1472P

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

O Rail Ins 1532P
#1

Slide assembly diagram

O rail ins

Part #1532P

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

1/4 Nylock 1203P
1/4 nylock

Part #1203P

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

1/4x1-1/2 514P
#16

Airglider assembly diagram

1/4x1-1/2

Part #514P

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

Leg 90112S
#4

A-frame assembly diagram

Leg

Part #90112S

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

Upper Drop 92261M
#1

Lawn swing assembly diagram

Upper drop

Part #92261M

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

1/4 Prot C 1340P
1/4 prot c

Part #1340P

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

1/4x2-1 706P
#15

Slide assembly diagram

1/4x2-1

Part #706P

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

Seat Bar 90206M
#2

Airglider assembly diagram

Seat bar

Part #90206M

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

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

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

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

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 blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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

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

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

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

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Find out how to test and fix problems with the spark plug, stop wire, ignition coil and flywheel.…