Dremel
Rotary Tool

Model # 7390 Official Dremel flex shaft tool

Here are the diagrams and repair parts for Official Dremel 7390 flex shaft tool, 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 13 parts  |

Brush Cap 5295064
#10

Heavy-duty flexshaft tool diagram

Brush cap

Part #5295064

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

Rotary Tool Flexible Shaft Casing 5295051
#1

Heavy-duty flexshaft tool diagram

Rotary tool flexible shaft casing

Part #5295051

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

Housing Set 5295061
#5

Heavy-duty flexshaft tool diagram

Housing set

Part #5295061

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

Screw 326578
#6

Heavy-duty flexshaft tool diagram

Screw

Part #326578

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

Brush Spring 90935
#11

Heavy-duty flexshaft tool diagram

Brush spring

Part #90935

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

Brush Holder 5295063
#12

Heavy-duty flexshaft tool diagram

Brush holder

Part #5295063

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

Guard Cord 313327
#9

Heavy-duty flexshaft tool diagram

Guard cord

Part #313327

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

Cable 5295052
#2

Heavy-duty flexshaft tool diagram

Cable

Part #5295052

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

Switch 352762
#13

Heavy-duty flexshaft tool diagram

Switch

Part #352762

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

Armature Bearing 5295106
#3

Heavy-duty flexshaft tool diagram

Armature bearing

Part #5295106

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.

Tapping into a new feature in the Search Bar on Sears PartsDirect

Tapping into a new feature in the Search Bar on Sears PartsDirect

Learn about a new feature added to the Search Bar on Sears PartsDirect…

How to remove a lawn mower blade using a removal tool

How to remove a lawn mower blade using a removal tool

Learn how a blade removal tool makes replacing the blade easier and safer…

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.…