Stihl
Mechanical Trigger Linkage Failure
Trigger feels loose or does not spring back, and spray is intermittent
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Possible Causes
Broken trigger return spring, worn trigger pivot, cracked trigger lever, misaligned linkage to valve or switch
How to Fix / Troubleshooting
Safety: Unplug the cleaner.
- Open handle: Remove screws and split the handle housing.
- Inspect trigger parts: Look for broken plastic around the pivot, missing or stretched springs, and misaligned linkage rods.
- Replace damaged parts: Install a new trigger lever or spring kit as needed.
- Lubricate lightly: Apply a small amount of silicone-safe lubricant to the pivot if it was sticking.
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Repair Difficulty
Easy
2/5
Required Part
Trigger Lever Assembly
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