Ryobi
Gas Line Trimmer

Model # RY30550 Official Ryobi trimmer

Here are the diagrams and repair parts for Official Ryobi RY30550 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 116 parts  |

Screw 660737001
#11

Guard/spring head-ry30570 diagram

Screw

Part #660737001

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

Line Trimmer Screw, 1/4-20 X 3/4-in 660886001
Line trimmer screw, 1/4-20 x 3/4-in

Part #660886001

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

Line Trimmer Drive Shaft Coupler 678019001
#10

Deflector/string head-ry30550 diagram

Line trimmer drive shaft coupler

Part #678019001

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

Line Trimmer Heat Dam Gasket 901657001
#27

Short block/rotor/fuel tank diagram

Line trimmer heat dam gasket

Part #901657001

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

Nut 1/4 -2 678016001
#25

Upper boom/front handle diagram

Nut 1/4 -2

Part #678016001

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

Line Trimmer Bladed Pruner Attachment Blade 638006004
#13

Guard/spring head-ry30570 diagram

Line trimmer bladed pruner attachment blade

Part #638006004

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

Line Trimmer Shoulder Harness 308487001
#30

Upper boom/front handle diagram

Line trimmer shoulder harness

Part #308487001

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

Spacer Plate 518367001
Spacer plate

Part #518367001

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

Handle Assembly 308991001
#15

Upper boom/front handle diagram

Handle assembly

Part #308991001

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

Line Trimmer Carburetor Gasket 900740003
#23

Short block/rotor/fuel tank diagram

Line trimmer carburetor gasket

Part #900740003

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

Symptoms for gas line trimmers

Choose a symptom to see related grass line trimmer repairs.

Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings…

Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure…

Main causes: cracked fuel lines, bad carburetor seals, leaky fuel tank cap, damaged fuel tank…

Repair guides for gas line trimmers

These step-by-step repair guides will help you safely fix what’s broken on your grass line trimmer.

How to rebuild a line trimmer carburetor

How to rebuild a line trimmer carburetor

If the line trimmer engine won't start even though there's fuel in the tank, the carburetor could be the problem. Follow…

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer carburetor

How to replace a line trimmer carburetor

If the line trimmer won't start even though there's fuel in the tank, the carburetor could be the problem. Follow these …

Repair difficulty
Time required
 15 minutes or less
How to replace a line trimmer fuel line

How to replace a line trimmer fuel line

The fuel line on a grass line trimmer deteriorates with time and eventually can split or crack. You can replace it yours…

Repair difficulty
Time required
 15 minutes or less

Articles and videos for gas line trimmers

Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.

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…

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.…

Grass line trimmer maintenance checklist

Grass line trimmer maintenance checklist

Find out how to take care of your grass line trimmer from the start of the trimming season until the end, with this help…