Black & Decker
Electric Line Trimmer

Model # ST7700 TYPE 2 Official Black & Decker line trimmer

Here are the diagrams and repair parts for Official Black & Decker ST7700-TYPE-2 line trimmer, 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 16 parts  |

Housing 90519884
#17

Main assy diagram

Housing

Part #90519884

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

Housing 90523140
#16

Main assy diagram

Housing

Part #90523140

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

Spring 598936-00
#13

Main assy diagram

Spring

Part #598936-00

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

Craftsman Line Trimmer Spool Spring 243603-00
#11

Main assy diagram

Craftsman line trimmer spool spring

Part #243603-00

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

Motor 90534964SV
#7

Main assy diagram

Motor

Part #90534964SV

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

Label 243431-00
#6

Main assy diagram

Label

Part #243431-00

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

Lawn & Garden Equipment Screw 681914-00
#3

Main assy diagram

Lawn & garden equipment screw

Part #681914-00

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

Line Trimmer Edge Guide 90503998
#12

Main assy diagram

Line trimmer edge guide

Part #90503998

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

Line Trimmer Spool Index Slider 598437-00
#8

Main assy diagram

Line trimmer spool index slider

Part #598437-00

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

Pin 243251-00
#14

Main assy diagram

Pin

Part #243251-00

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

Articles and videos for electric line trimmers

Top 10 electric lawn and garden tools for 2023

Top 10 electric lawn and garden tools for 2023

Learn about the top 10 must-have electric lawn & garden tools for 2023…