This authentic string trimmer lever assembly is sold individually. The lever is what controls the amount of line that is fed from the auto-feed spool. The lever tends to wear over time, and so should be inspected regularly. If the automatic line feed is not working, a malfunctioning lever is likely the cause. Remove the spool and check if the lever in the spool housing can move freely, if not, adjust or replace if damaged.
Works with the following brands:
Black and Decker, Craftsman
Works with the following products:
Trimmer
Fixes the following symptoms:
Cutting line does not come out
Part# 90567077 replaces these:
90567077, P90567077
Works with the following brands:
Black and Decker, Craftsman
Works with the following products
Trimmer
Fixes the following symptoms
Cutting line does not come out
Part Number Cross Reference
Part# 90567077 replaces these:
90567077, P90567077
Questions and Answers
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S
December 7, 2022
How does this part attach?
For model number LST136
Hi, thank you for the great question. We have attached a video for the installation of your part. It may not be the exact same module but it should install almost the same. We hope this helps, good luck with this repair.
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Scott
September 11, 2025
Do you have a lever assembly for this Craftsman model string trimmer?
For model number CMEST900
Hi Scott, thank you for your inquiry. Yes, the lever assembly, part number FIX12004487, is compatible with your model number. Glad to be of help!
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Celeste
June 17, 2026
The line won’t feed. I saw a video showing the lever returning to its start position, like there’s a hidden spring attached to its shaft or something. Mine doesn’t return to any position. I need that spring but the parts diagram doesn’t show it. Is it possible that my model doesn’t have a spring for the shaft, and something else is wrong? There’s nothing interfering with the movement of the lever, and we’ve tried various tensions on the line when we wind it onto the spool.
For model number LST136
Hi Celeste, thank you for the question. Your trimmer uses Auto Feed System which relies entirely on centrifugal force rather than a spring, so there is no hidden spring on the lever shaft and your diagram isn't missing anything. The actuator lever, part number FIX18988538, is designed to float freely on its post. When the head spins up, centrifugal force flings the heavy end outward, catching and releasing a notch on the spool to feed line. Because the system relies on precise contact rather than mechanical tension, even a millimeter of wear on the lever's plastic edge is enough to stop the AFS entirely and this is the most common failure point even when the lever looks and pivots fine. The only spring that belongs inside the cutting head is the large compression spring, part number FIX18988535, sitting directly under the spool cap. If it is missing, installed upside down, or has lost tension the spool won't press correctly against the lever and line won't feed. If you have any other questions feel free to reach out
Hello Patrick, thank you for the question. Yes, there is a spring that works with the actuator. The spring, part number FIX18988535, sits alongside the actuator in the spool assembly. We hope this is what you were looking for!
How do I replace the feed lever for single line weedeater
For model number CMCST900D1
Hello Stephanie, thank you for the question. Squeeze the release tabs on the spool cap cover and lift it off, then pull the line spool straight out of the housing. Locate the old feed lever resting on its pivot post inside the housing and pull it straight off, clean any debris from around the post before installing the new one. Press the new Actuator, part number FIX18988538, down onto the pivot post until it sits flush and confirm it pivots freely without binding. The auto-feed system relies on the lever swinging freely under centrifugal force so smooth movement is essential. Reinstall the spool, thread the cutting line through the eyelet, and snap the spool cap cover back onto the housing tabs. Reattach the battery and test the auto-feed function. We hope this is what you were looking for!
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Jim
Yesterday
Does this park come with spring?
For model number LST136
Hello Jim, thank you for getting in touch. No, the mentioned lever assembly does not come with the spring. The spring is sold separately as part number 90566944. We hope this helps!
Does this part require a spring ? I replaced this part but my string will still not advance?
For model number LST522
Hi Rob, thank you for reaching out. Yes, your trimmer requires a spring part number FIX18988535, to function, though the lever assembly itself is just a small plastic arm and does not have an attached spring. The separate metal spring sits under the spool inside the trimmer head. We hope this information helps!
when i push the trigger, the motor spins but the spool does not spin. What might the issue be
For model number lst140c
Hi Robert, thank you for your inquiry. If you hear the motor spinning but the cutting spool isn't moving, the issue lies in the connection between the motor's drive shaft and the spool assembly. The motor drive gear meshes directly into the Gear & Spindle Assembly, part number FIX18994000. If the teeth on this plastic gear have stripped or sheared off, the motor's spinning shaft won't catch it, leaving the spindle (and the attached spool) stationary. Also, check the Lever Assembly, part number FIX18988538, it sits right between the gear spindle and the spool. It helps lock and engage the drive mechanism to the spool. If this lever is broken, cracked, or jammed, the rotational force won't transfer to the spool. Glad to be of help!
Is it possible to get the spring with the lever, part #12004487. Thanks
For model number LSTE522 type 2
Hello Bill, Thank you for contacting us. We have researched the model you have provided and have found the part you are looking for is Fix Number: FIX12004487 for the Lever and Fix Number: FIX10254180 for the Spring. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
Does the lever just swing freely, or does it have some kind of tensioner.My lever just swings back and forth freely.
For model number LST136
Hello William, thank you for reaching out. The lever should move freely. If it is bound up or obstructed it will not work correctly. We hope this information helps!
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