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Lehr
Gas Line Trimmer

Model # ST025DC Official Lehr propane line trimmer

Here are the diagrams and repair parts for Official Lehr ST025DC propane line trimmer, as well as links to manuals and error code tables, if available.

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Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 79 parts  |
Safety Lever ST025.3-045
#45

Trimmer diagram

Safety lever

Part #ST025.3-045

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

Nut M5 ST025.3-032
#32

Trimmer diagram

Nut m5

Part #ST025.3-032

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

Decal Warning ST025.3-109
#90

Trimmer diagram

Decal warning

Part #ST025.3-109

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

Grip ST025.3-034
#34

Trimmer diagram

Grip

Part #ST025.3-034

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

Trimmer Head Assembly .070 ST025CS.3-065
#65

Trimmer diagram

Trimmer head assembly .070

Part #ST025CS.3-065

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

Outer Clutch Housing ST025.3-059
#59

Trimmer diagram

Outer clutch housing

Part #ST025.3-059

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

C-clip ST025.3-060
#60

Trimmer diagram

C-clip

Part #ST025.3-060

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

Screw M5 X 16 ST025.3-040
#40

Trimmer diagram

Screw m5 x 16

Part #ST025.3-040

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

Screw, Allen M5 X 25 (2) ST025.3-051
#51

Trimmer diagram

Screw, allen m5 x 25 (2)

Part #ST025.3-051

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

Screw M5 X 30 (4) ST025CS.3-029
#29

Trimmer diagram

Screw m5 x 30 (4)

Part #ST025CS.3-029

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.

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Why won't my gas line trimmer start?

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

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Why does my gas line trimmer run rough?

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

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Why does my gas line trimmer leak gas?

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

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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.

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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…

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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 …

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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…

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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.

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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…

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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.…

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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…

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