Easy
15-30 minutes
This lock off button is an OEM from the Ryobi manufacturer. The plastic button is compatible with the RY40001 Power Head and the RY40002 Power Head Trimmer. This item is secured onto the switch trigger and contact plate assembly. The lock off button prevents the tool from unintentionally starting. This part is sold individually. A screwdriver is needed in making the repair.
Lock Off Button 525589001
OEM part for: Ryobi
Part Number: 525589001
$4.99
In Stock
Ships within 1 business day 
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Frequently Purchased Together ?
Compatibility
This part will fit the following 6 machines
Ryobi
RY40001 Power Head View Diagrams & Manuals
RY40002 Power Head Trimmer View Diagrams & Manuals
RY40603 (107443001) Pole Hedge Trimmer View Diagrams & Manuals
RY40603VNM (107443101) Pole Hedge Trimmer View Diagrams & Manuals
RY40001BVNM (316198001) 40 V Power Head View Diagrams & Manuals
RY40001B (311114008) 40 V Power Head View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Trimmer Parts
Customer Part Reviews ?
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Easy Repair
quick delivery, perfect fit
Guest -
June 26, 2023
Verified Purchase
Easy repair
Arrived quick, instructions to install great my weed wackier works great
Gaetano -
September 5, 2022
Verified Purchase
Worked great. Easy repair. Delivered in a timely manner. Will definitely buy from again.
Fit perfectly. Weed eater works great.
Anonymous -
July 14, 2022
Verified Purchase
Easy fix and great service!
I just put in the new speed control lever.. that had to be one of the easiest and fastest fixes I've ever done!! I think it took longer to remove the screws then installing the lever!!
Guest -
June 13, 2022
Verified Purchase
Just the right parts
I was very happy to see the correct parts to make my repair and get back to work. Fast shipping and easy online ordering. I will be back when needed. Thanks
Benny -
June 8, 2022
Verified Purchase
Easy repair thank you. Fit perfectly.
Arrived on time for perfectly. Thank you so happy my trimmer works again.
Guest -
July 12, 2020
Verified Purchase
Worked perfectly
The part was in new condition. It arrived in a reasonable time. Couldn’t ask for better.
Guest -
July 10, 2020
Verified Purchase
Quick response and easy repair
Part was the exact fit, everything works like new.
Mark -
June 23, 2020
Verified Purchase
Quickly received part and installed in minutes.
Worked great. All is goid. Thank you.đź‘Ť
Guest -
September 9, 2019
Verified Purchase
Easy repair
Remove all the screws to split the case in half. Once opened anything in there can be replaced. Triggers were a simple matter of pulling them out and putting in new ones. Screw the case back together. Requires a small star bit screw driver or drill bit. Handle screws required the screw driver on the rest used the drill with drill bit.
Guest -
April 30, 2019
Verified Purchase
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Verified Purchase
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Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Lock off Button Broke
Cory - January 30, 2018
👍 4 of 4 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver
Parts Used
You have to remove ALL of the torx screws from the Ryobi trimmer power "head" including those that are way down in the battery cradle. Really just no way to properly access the trigger and lock button without completely separating the casing. So that was a bit painful. I ended up using a torx 10 screwdriver because two of the shafts the screws were in down in that battery cradle were pretty deep and there was no way I was going to fit the drill head down into it and my kit didn't have an extender, so screwdriver it was. Swapping out the lock button was pretty easy. Just had to hold the trigger down with one hand and then pop the lock button onto the "stem" it sits on and then release the trigger making sure they all lined back up together. Both are spring loaded, hence having to hold the trigger down while inserting the lock button. Probably the hardest part of the whole repair was getting the dang case to line back up properly and re-seat, and then of course torquing down all of the screws again (something like 12-15 i think), but all in all, super , super easy repair. Thankful to ereplacementparts for stocking both items (I actually couldn't tell from the Ryobi blow-out diagram which part I needed, so I ordered both...heck, never know when I'll need a trigger to replace down the road anyway), at a super reasonable price and getting them to me promptly. Very happy with the entire purchase and will definitely use them again in the future if need be.
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Brocken trigger
JOHN - June 7, 2016
👍 3 of 4 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
, Torch set
Remove all torx screws holding housing together. Split housing. Remove broken trigger. Replace, place 2 halves together. Tighten screws
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handle for lock out was broken so motor could not start
jack - April 29, 2019
👍 1 of 1 people found this instruction helpful
Tool Type
Trimmer
Difficulty
Easy
Time
15-30 minutes
Tools Used
, star screwdriver
Parts Used
Removed screws and separated the two halves of the power unit. Removed the old lock out lever and inserted the new one, then replaced all of the screws. Some of the screws were recessed so far that they will difficult to remove. Just keep trying but note they are not philips head and take a star head screw driver..
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Broke the trigger switch leaver
Guy - October 21, 2020
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Requires a T-15
Removed battery. Remove the T-15 screws on the outer case. Removed the outer case. Replaced the lock leaver and and the trigger leaver. Watch out for the springs and don’t lose them. They need to go back where they came from. Once replaced assembly is reverse of taking it apart.
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Broken lock switch
Dennis - September 23, 2020
Tool Type
Trimmer
Difficulty
Medium
Time
1-2 hours
Tools Used
, Allen wrenchs
Remove 15 Allen screws, replace parts and reassemble. Needed one long allen for one screw in the handle (M4 x 30). All the other screws were M4 x 15. The gas trimmer only has 3 screws. Mine was the battery powered one.
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lock off handle broke off
Jeffrey - June 20, 2020
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Power Drill
Parts Used
unscrewed 8 screws took out broken handle replaced with new one
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Safety trigger on trimmer had broken off.
Josh - June 9, 2017
Tool Type
Trimmer
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Star tool bits
Parts Used
Removed trimmer cover, dropped in new part making sure reset spring was correctly placed and attached the cover back. Part was perfect replacement!
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OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
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Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
