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Homelite UT20780 trimmer/brushcutter Parts
Here are the diagrams and repair parts for Homelite UT20780 trimmer/brushcutter, as well as links to manuals and error code tables, if available.
By Schematic
SELECT DIAGRAM
Browse Parts forUT20780 Line Trimmers
Gasket
Part #UP04710
The manufacturer no longer makes this part, and there's no substitute part
Carburetor/fuel tank diagram
Check Lever
Part #UP04740
The manufacturer no longer makes this part, and there's no substitute part
Shaft/spool/string/grass deflector diagram
Gear Head (includes Keys 17,18)
Part #UP04124
The manufacturer no longer makes this part, and there's no substitute part
Hex Service Engine
Part #UP02963
The manufacturer no longer makes this part, and there's no substitute part
Carburetor/fuel tank diagram
Fuel Tank
Part #UP00020
The manufacturer no longer makes this part, and there's no substitute part
Screen
Part #UP04629
The manufacturer no longer makes this part, and there's no substitute part
Clamp
Part #UP04137
The manufacturer no longer makes this part, and there's no substitute part
Shaft/spool/string/grass deflector diagram
Screw
Part #UP04157
The manufacturer no longer makes this part, and there's no substitute part
Shaft/spool/string/grass deflector diagram
Hex Nut, Left
Part #UP04127
The manufacturer no longer makes this part, and there's no substitute part
Blade
Part #UP04890
The manufacturer no longer makes this part, and there's no substitute part
Most common symptoms to help you fix your line trimmers
Choose a symptom to see related grass line trimmer repairs.
Main causes: stale fuel, clogged fuel filter, faulty spark plug, clogged air filter, cracked fuel lines, clogged carbure...
Main causes: stale fuel, cracked fuel lines, dirty carburetor, bad spark plug, worn piston rings...
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 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 time and Difficulty
15 minutes or less
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 time and Difficulty
15 minutes or less
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 time and Difficulty
15 minutes or less
Effective articles & videos to help repair your line trimmers
Use the advice and tips in these articles and videos to get the most out of your grass line trimmer.
Vapor lock can stop your trimmer cold in summer heat. Learn how to prevent it and keep your lawn looking sharp...
Trying to decide between a straight shaft and curved shaft trimmer? This guide compares both designs to help you underst...
Wondering if your weed whacker can pick up the slack for your broken lawn mower? You're not alone. In this guide, we bre...
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