There is a round, rotary black part between the metal piece to which the cutting head attaches and the outer plastic seat of the cutting head. There are two square slots, each about a quarter inch wide, on opposites sides of the black piece. Slide an Allen wrench or something similar firmly into the slot. Holding the Allen wrench in a stable position, turn the outer plastic ring of the cutting head (it has scalloped edges that can be gripped firmly) counter clockwise to unscrew the cutting head from the bolt on which it is mounted. Be careful with the tool (e.g. Allen wrench) used to hold the black piece steady, as it is plastic and could be damaged by the edge of the tool.
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Rating: 3.7 - 232 votes - $99.99 - In stock
25cc, 2-Cycle Gas Trimmer / Attachment-Capable Design ... The TB22 EC gas string trimmer is both JumpStart™ and TrimmerPlus® attachment capable, making ...
Rating: 3.3 - 32 votes - $179.99 - In stock
The TB635 EC curved shaft gas trimmer with SpringAssist™ technology features the new Click N Trim™ bump head, making line replacement easier than ever. ..... next one they put on - will only run for about 4 seconds. they've had for about 2 ... Both String Trimmer and Edger work great, easy to start and very low vibration.
ref: removing cutting head from troy-built trimmer tb525...
Just talked with Troy-Bilt company and got answer on how to remove head. seems that on the tb525, they used 3 heads over the production period. On mine, I had the slot above the head, but there was no deeper hole or notch to engage the screwdriver, etc. My head requires an allen wrench. Use the small part of the "L" shape and angle it into that notch...pointing the tip toward the shaft or engine direction. Then, hold the allen wrench upright and this will lock the shaft. Now you may turn the notched ring on the cutting head in a CCW direction (as you look from bottom to top). It will probably be very tight, but will come off. Hope this helps those who have been having trouble searching for that hole inside the notch that doesn't exist on this particular version. Good luck...
Great question! You can always go to the Home Depot and purchase a "universal-type" retro head and if it doesn't fit correctly, just return it for a refund or go on a site like Ebay and buy a genuine Troy Bilt retro type string head. I bet they will fit.
I believe what you need to do is remove the 3 screws on the trimmer head to remove the head from the lower shaft. After the head is off you can look down into where the shaft goes and be able to use some needlenose pliers or something of the sort to pull the broken part out.<!-- from fixya rte -->
will need to check if any debris is wrapped around head jamming the head --or -flex shaft is jammed or damaged separate shaft from motor and will see in shaft the flex shaft that turns the head try turning head by hand and observe flex shaft if binding or broke need to lube or replace
the head is bolted down by 4 torque bit screws some people call them star wrenches from the top but all plastic & carb needs to be removed more less everything to get to the bolts around the cylinder head as well as crankcase but to be honest its cheaper to buy a new one then repair it i had one repaired it & by the time i replaced everything i could have bought a new one cheaper then the parts cost me
May be air filter but sounds more like your muffler is stopped up. First take the muffler off and see if it runs better without it. If so, burn the carbon out of the muffler and clean the muffler port on the engine. If not, then remove the four screw at the very end and disassemble. The ait filter is in that area. Diagram is located at www.stollerlawnandgarden.com/.
Click on parts lookup in left hand column.
Take an awl or small diameter screw driver, same size or a bit smaller dia. than the line dia., and push it through the hole from the outside of the line head. This should push the piece of old line through the hole.
Recommendation: Leave at least one inch of line on the inside of the head, so you can grab it easily when you have to replace the line. I'll carry a pair of long nose pliers on me when I use my trimmer, so I can easily grab hold of the inside piece to pull it through.