PDA

View Full Version : trimmer bump feeders


grassmasterswilson
05-05-2011, 12:10 PM
Been running stihl trimmers forever. The bump head always works for a few weeks and then it wears down and all the holes show up. It then fills up with dirt and won't compress to feed string.

Anyone found and good way to handle this or do you just replace the bump every few weeks?

rlitman
05-05-2011, 12:32 PM
Are you dragging it on concrete when edging? It shouldn't be wearing that fast, and barely gets scratched from just bump feeding (even on concrete).
I saw a tip from another thread about glueing a steel washer to the cap to keep it from wearing out if you need a solution that doesn't change your trimming style.

FLAhaulboy
05-05-2011, 05:06 PM
I've had a bump head for yrs and never had this problem, so I doubt its a defective issue but rather a user issue (?)

georgiagrass
05-05-2011, 05:57 PM
The bump head should not be wearing out that fast. I like the idea of glueing a washer on the bumper to make it last longer. When the bumper wears out, make sure you buy just the spool with the bumper and not the entire head. The spools are not that expensive.

doneritelawncare
05-05-2011, 06:36 PM
Been running stihl trimmers forever. The bump head always works for a few weeks and then it wears down and all the holes show up. It then fills up with dirt and won't compress to feed string.

Anyone found and good way to handle this or do you just replace the bump every few weeks?

YEP WHEN I was running stihls a lot I was getting about a month out of the heads my guys would run them right on the ground! I HAD TO BUY SPOOLS AND COVERS BUYS THE BAG!

Fix no joke! I drilled the middle of the spool then put a small carriage bolt and nut with washers to save the spool and cover plate. I saved a bunch of money. The bolt head would wear out in a bout 2 months!

SouthSide Cutter
05-05-2011, 09:27 PM
Don't see how you guys wear them out that fast. I run mine on the ground and have never had a problem in two years with the Stihl. Now I don't run it on concrete or asphalt which is the only way I would think it would wear that fast.

grassmasterswilson
05-05-2011, 09:33 PM
Down her in the south we mow a lot of warm season grasses that like to be mowed short. So a lot of the time I put the head right on the ground when trimming. Once the bump wears down it will collect dirt.

Not really that big of a deal. Its been wet down here and the mud collects pretty fast.

Snyder's Lawn Inc
05-05-2011, 09:37 PM
Trash it put a Stihl poly 30 or 40 head on it last you 1.5 yrs ore more

Landscape Poet
05-05-2011, 09:42 PM
Try the speed feed head that shini's have grass. They are flat and do not have a bump like the stihl. They make a kit that retros them to the stihl. I do like the bolt idea, but why the hell should I have to geri rig something, should stihl not make them right for the price they charge for them?
To whoever said just buy the spool, not sure what you are buying them for, but here, it cost me only a few dollars more to buy the complete head at my dealer. It is worth it even if I dont need it for a few dollars - I just throw it in the parts box and grab one when needed then, unfortunatly the bump gets worn out way quicker.

johnsonslawnmanagement
05-05-2011, 09:43 PM
Same here on the fast wear. Run through a spool every 2 months per trimmer. I am fixing to replace mine this week and will snag the carriage bolt and washer ideas.
Posted via Mobile Device

topsites
05-05-2011, 09:50 PM
Perhaps some folks haven't learned the fine art of tapping the trimmer head properly,
then again I'm the fool who caught a trimmer-slung branch with his face not a week ago.

ed2hess
05-05-2011, 09:59 PM
Same here on the fast wear. Run through a spool every 2 months per trimmer. I am fixing to replace mine this week and will snag the carriage bolt and washer ideas.
Posted via Mobile Device

Come on you are wearing out those stihl heads in two months:hammerhead:Those are one thing that stihl makes that is absolutely the best from wear and reliability. I can assure you no speed head will last longer and neither will the bump heads used on Echo or Honda.

knox gsl
05-05-2011, 10:03 PM
Mine will last well over a year before needing to be replaced, but I do mow at 3" plus on every lawn.

gebby
05-05-2011, 11:45 PM
I do a lot of curbs around stores. My heads usually last all year. I have tried just replacing the parts piece by piece to save money but, now I just replace the whole thing. I have 2 new ones in the truck now just waiting for one to go down. I think I would re-think how I am running them. When replacing the line I shake out the dirt and dust. I have heard of guys spraying inside with WD 40to keep them slick.

rlitman
05-06-2011, 12:15 AM
Perhaps some folks haven't learned the fine art of tapping the trimmer head properly,
then again I'm the fool who caught a trimmer-slung branch with his face not a week ago.

I don't think it's tapping that's doing this. Running the spool on the ground, maybe. Trimming a sidewalk edge with the string at a flat angle, so the spool is too low. Even tapping a lot won't wear through the spool that fast. It's got to be in prolonged moving contact with the ground.

Come on you are wearing out those stihl heads in two months:hammerhead:Those are one thing that stihl makes that is absolutely the best from wear and reliability. I can assure you no speed head will last longer and neither will the bump heads used on Echo or Honda.

You think? The string bump heads exits higher from the ground than on other styles (because the bump cap sticks out). Maybe someone needs just that extra guarter of an inch of clearance to keep from dragging the spool.

I'm not going to criticize whatever style works best for whomever.
Yes, maybe they're dragging the spool on the ground. Maybe we don't.
That's ok. But they'll have to either get used to replacing spools (or the whole head), trying that bolt/washer fix, or changing technique. I suspect that the first two are the most palatable options.

Oh, and that carriage bolt idea sounds pretty good. Probably better than the glued on washer one I saw, and easy to replace before the spool wears out if you pay attention. If you're an insane metal worker like myself, you could consider making something out of a stellite valve taken from a dead engine. Or maybe AR steel plate.

BTW, yes, the entire Stihl Autocut 25-2 (just an example I picked) head retails for twice the price of just the spool, but if you look online you can find spools for as little as $10.
I'm not suggesting buying the spool every time, but maybe you could do best buying two spools to every full head. Otherwise you'll be swimming in parts pretty soon.

georgiagrass
05-06-2011, 12:41 AM
The heads don't wear out very quickly, just the spools. I don't know why anyone would spend the extra money to buy the entire head each time the bump head wears down.

KINGMADE
05-06-2011, 12:55 AM
My bump heads last around a year. Sounds like you have some knuckle heads laying it on concrete and walking with it.