Adding A Grease Zerk to The FS90R Stihl Trimmer
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- Опубликовано: 25 авг 2024
- In this video we go over the traditional method to apply grease to the FS90R Stihl trimmer head and a slight modification, adding a zerk to save time during maintenance, which in the long run will save money.
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Nice!!!!!! THANK YOU!!!!! I've never seen a non-threaded zero fitting (or anything else for that matter) with the little ribs for pressing in. Where can I get them????
Keep in mind that a grease gun exerts in about 7,000 psi, which makes it very easy to damage seals. This, in turn, will allow dirt, water and other contaminants to get into the gear box. In this application, the manufacturer's method would be the preferable one. Also, never drive a grease insert by striking it on the end.
For sure, banging the fitting in with a hammer is dumb....better to press the zerk fitting in with a vise that has jaw inserts that won't damage the fitting.
Can’t I just find a zerk to fit the threads and keep in in?
Damn drill press in the background dude.
Was searching the comments for this very one 😂
Thanks, just ordered a grease connector for my stihl trimmer. I have never greased the head in 9 years, but it only gets used for maybe 10-20hrs a year, so light use
Thanks for the idea. I took your idea one step more and put it in my lathe an drilled and tapped it, then put a zirk fitting in. It will save a lot of time on maintenance.
Being a machinist like myself I would have put a threaded pipe thread fitting in it instead of the tap in fitting.
Its a wonder by you tapping on top of the fitting the grease gun snapped on the grease fitting.
I would have put a piece of hollow tubing over the fitting just so it fit over the fitting down to the hex part of the grease fitting.
Should have used a copper hammer instead of a steel hammer to tap the fitting in the hole,lol
Chould have used the vise and scrap aluminum as an arbor press. No damage to the Zerk sealing ball seats.
or tap over wood or plastic
Just replaced my fs 90 r after 15 years,never greased it changed the clutch only once.
Stihl all the way baby
Great tip!
Robert Fagga Right on! Thanks for watching 🇺🇸
That's awesome. I am going to be doing this to all my trimmers new and old. Thank you so much for the excellent idea. I have a stihl FS-250R, stihl KM-94R and Husqvarna 525L and all three gear heads will be modified exactly like this. All three trimmers belt out ALOT of power and torque and don't want to cook gears with the very high rpms that these machines produce.
Nice job. When you threaded it back in I was a bit confused because you started turning it left but realized the video was backwards. The logo on shirt was backwards so I knew I wasn’t loosing my mind.
Hey thanks for watching 💥 you reached back into the vaults for this one 🤩
Thanks for mentioning the video is playing backwards. Was wondering why it would be reverse threaded !!!
I was wondering why the drill was turning counter clockwise 😂😂
I wonder what the small bearing check valve looks like after you drove it in with a hammer.
John Clarke video is over a year old trimmer has several hundred more hours on it takes grease fine. Appreciate you dropping a comment. 👍🏻
I think it`s a spring loaded check valve John, I maybe wrong; I was wrong once in grade 5 ! I`ll never forget it.
Thanks for pointing out the grease fitting, I've been wondering about greasing FS70R, it sounds like it needs lubing. As for the Zerk fitting, it seems like a lot of work. Thanks!
How do you know how much grease to put in. Is there a weep overfill hole..
I did this a couple of years ago only I found a zerk that just screwed in to the existing threads.
Maybe because they need to sell more units in the future 😉
What size was the zerk fitting
What size Zerk did you use. The "screw plug," as Stihl calls it appears to be M11x1.5. It's hard to find a Zerk that size.
no idea, just happen to find one that worked.
@@charlesbrown205Amazon is amazing 😉
Sorry it has been awhile. Great tip thanks for sharing,good time saver.
Get a ball peen hammer for metal. Use your carpenters hammers for nails and wood. Just a reminder,
good tip though. I have that trimmer, but I have the handle bar handle on mine.
Great idea!!! I’m doing it!
Heat up the piece then insert the cold grease nipple much better practice
Surely you could have gotn a grease nipple fitting that would have screwed nicely into the grease port?
I know Ransoms Jacobobsen Ltd use mainly grease nipples on most of their machines and various sizes too.
Mark Livsey Most likely could have but what fun is that lol. Appreciate you watching and taking the time to comment 🔥💯
The head on my Husqvarna 128 LD appears nearly identical to the Stihl. The plug is M10-1 threads. A zerk from the local Advance auto parts store (part #362286) screws right in, replacing the plug. BTW, be careful not to overfill, as advised by others.
I use a flush method, take out the plug, flush the old grease out with a degreaser. Then put new grease in with the original method.
I use a flush method. Take out the plug, flush the old grease out with degreaser, then fill it most of the way back up with the grease gun using the Zerk. Check it once to make sure it isn't overfull after rotating the gears and I don't have to mess with stupid gimmicky grease tubes of inferior grease.
I hate taking that nut out to grease the head , I`m doing this for sure I think i will drill and tap as i have the treaded zirk fittings (less whacking with a bloody big hammer )
Great vid
Rob NSW
Australia
Righty tighty lefty lucie.
Looks like your trying to screw the plug in counter clockwise at the end of your video,LOL
That's because he was, the video image was reversed, look at the logo on his shirt. Also, the grease port is on the right side of the trimmer head, not on the left side as shown in this reverse image video.
Don't think I'd be banging on the zerk with a hammer. Not sure it'd even work after all that banging. Just saying you know.
You can just wrap the threads and put the bolt in the vise just barely tight. This way the bolt head sits on top of the vise, and you aren't relying on the tightness of the vise to hold your workpiece ( avoiding deeply scratching the bolt head).
Izzy Ramos-Gunn Excellent point! Thanks for watching and commenting 🤩
I have a trimmer and edger with similar set up for lubrication. Did you try to find a grease zerk that would screw in in place of the plug? Also the is the possibility of pushing the seals around the shafts with good strong grease gun.
That's what I wondered. when using a grease gun excess oozes out but the trimmer head is sealed tight so their is no way to no when it's full.
So how do you know when to stop pumping grease? Or how many pumps do you do? With the tube grease from Stihl I kno when it’s full with resistance as I squeeze the tube
You could unscrew the plug to check. Using a grease gun still beats the expensive crappy grease tubes.
Awesome, I never thought about that 😀😀
Very informative will share
Very Good idea
the new Stihl are Sealed !!!!!!!!!!!!!
Joni English yep noticed that on the km131r. Thanks for watching 👍🏻
Yeah! No maintenance! :-)
I don't have any problem doing it the recorded mended way I spent a lot money on my weedeater years ago so I can understand screw a fitting and use the right greas easy maintance
OK vid but that music is a nightmare when i'm trying to concentrate on what you are saying.
👍😎
Thanks for visiting the channel and watching 👍
Great Idea , never knew they were greasable .
Read your manual.
Good video. I agree it will save time and easier then taking the plug out everytime.
Will only save time if you grease it all the time. The time it takes to drill and tap the fitting is about 10 years worth of greasing by the regular route for most folks.
How often or how many hours before you should grease the trimmer?
Generally we add a squirt or two at the start of the season and haven't had any issues. You should refer to your trimmers manual for the proper frequency. Thanks for watching and commenting!
Very neat idea. The easier maintenance is, the more likely it is to be done.
Great tip brother.
Blaine Dennison Southern Stripe King thanks for watching 👍🏻😀
Nice idea 💡 👍
Thanks for watching! And dropping a comment!
don't bang on end of grease fitting NOT COOL
Wayne Summers its all good 😀
Use a socket that goes over the grease fitting & stops on the base to drive in the threadless type.
a piece of 1/8" pipe works well for this.
For something that only needs grease every 25 hours of operation at most, I don't really see a need for a "time saving" zerk fitting. Of course I don't really know how quick these things rack up 25 hours when being used commercially.
Either way you now need to be careful not to over grease and pressurize the housing. I'm not really convinced that this was necessary or even worthwhile , but hey, you do you. Seems to me that the tube being threaded to fit the hole already made the process pretty darn convenient and it was impossible to over pressurize the part that way. Since my personal machine only needs the grease checked once a year, in my case this process would take a lifetime to save time "in the long run" 🤣
If it's been working out for you over the past 4 years, then great! And if not, it was a learning experience.
Always rotate the head when pumping in grease. Personally think it's unnecessary mod :)
You do know you have a drill press behind you in the video. Why the hand drill
How much foreign material is getting into the gears from your drilling and how do you plan to completely remove all the drillings?
None if you clean it off before installing it.
You could’ve used your vise to press the grease fitting into the plug instead of beating it in.
Thats called a flat top greese fitting.
It a wonder the grease gun fit over the grease fitting after he beat the hell out of the grease fitting with a STEEL HAMMER,🤣 🤣 🤣 🤣 🤣 🤣 🤣
I have a stihl trimmer fs 56 rc that has NO grease plug on the gear box.
yes I bought it new this way. I see replacements have the plug. it does get hot after an hour or so trimming or brush cutting.
Ive had it a few years and it spins fine and no noise, But no place to grease it?
should I replace the gearbox? or drill & tap this box to accept a Zirc?
thank you
Great idea, they should use it.
Catalan Guitar Hey thanks for watching and commenting 👍🏻
Damn good idea. Learn something new everyday.
A N thank you for watching!
Have been thinking of this exact same idea for my string trimmer. Nice video. Was hoping for some information on what drill size you used and how you selected it. Also thought the addition of a little oil during the drilling process might have helped.
Jay Haynes great points. Like I stated in the beginning of the video pretty sure this voids any product warranty. Honestly this vid is two yrs old and I don’t remember the size of the drill bit 😀 thanks for watching 👍🏻
Or maybe using the drill press in the background.
Why not just replace the bolt with a Zerk fitting?
Zerks placed in the wrong place eventually get broken off, especially the threadless ones, it seems.
Dee Cee No problems after two years so far at least lol. Thanks for watching 👍🏻
Are you saying you did this? It seems like you are. Zerks are pretty hard to break off and pretty easy to replace.
Have you tried this on a fs70 or 55 ??
How necessary is it to lube trimmers? I just did it for the first time but I’m not sure it was really necessary. The trimmer is 5+ years old and was never lubed and no problems.
turdsandwicher I look at maintenance like this. If I don’t grease do you joints on my truck they may last 10 years before it fails if I do grease do you joints on my truck they may last 12 years before they fail.
How do you know when the proper amount of grease has been inserted?
It helps to lube your drill bit also. No lube? stab business end of drill bit into a bar of soap.
Is that a drill press to your right? It would of made a nice centered hole.
It would have made a nice, centered hole.
Neat! How many pumps do you use from your gun?
How greace to put at time.means how much gram
@ 1:35 It is called "torx" and not "star". To be precise: it is a Torx size 27 = T27.
BertPle thanks for the comment and watching 👍🏻👊🏻
"Star" is acceptable these days. "Torx" patent has expired. Personally I prefer Torx.
Do it even easier, fit a needle grease injector to your grease gun. Packs the gears full.
Use some lubricating oil (WD40, etc) when drilling the screw......will make the job go much easier.
I had a similar thought when watching the drilling. While WD-40 will work, an even better option is something called cutting oil. It’s specifically formulated to lubricate metal-on-metal drilling and to direct heat away from the drilling surface. It’s inexpensive, and you can find it at your local hardware store, or at the Land of the Orange Apron.
If you’re doing occasional, small-scale metal-on-metal drilling, WD-40 is a fine option. If you’re doing this more often, or if you have a larger drilling job that will generate a lot of heat and friction, cutting oil is the way to go.
@@stevengandt1507 Agreed!
Use an aluminum hammer to avoid damaging the grease fitting.
Rob King great tip! Thanks for the comment 👍🏻
I would have used my vise as a press and eased it in slowly, that's what you have to do sometimes!! Lol!!!
Heyyyyyyyy that looks like a craftsman driver.
what speed feed head are you using
What size was the drill bit?
memory fails its been a while. Thanks for watching!
WHAT NOT TO DO!!
What kind od grease works
Why is this video running backwards is it stolen?
how often should these be greased? I have some that have never been.. They don't have hour meters.. also, where's the old grease go? Won't it end up with a TON of grease after a while? Thanks cool idea
Michael Bachman we grease ours at the beginning of the season when we are prepping our equipment. The grease actually breaks down over time. Thanks for watching and commenting 🤘🏻
I believe every 25 hours. Please read the maintenance instructions for the exact amount of hours.
BertPle yes check it every 25 hours is correct. We always check at the beginning of the season. We have considered adding hour meters to our trimmers but......
RPM Improvement Outdoor Services LLC I’ve considered doin g the same. Any brand or type of hour meter you guys like? I thought it would be helpful for keeping up with valve adjustments also
Michael Bachman no preference but I believe Texas Lawn Veteran has a video where he goes over putting an hour meter on a piece of equipment. I will have to look for a link
The system recommended by Stihl... No grease gun needed just the tube.. Grease every 25 hours or so and therefore easy to do at base before heading out...
Or change the screw for a zerk fitting and make sure you keep a big grease gun handy.
Drilling is easier in the correct direction
cutl00senc thanks for watching and dropping a comment. When you film with a iPhone screen facing you, writing, tires turning ect show in reverse. Very perceptive of you to catch this occurrence in the video. 👍🏻
Caught that too... or so I thought. The flutes on the drill bit show he was drilling in the correct direction. Just the camera messing with our heads.
Normally I would say I wouldnt bother but the greatest advantage not mentioned is that once done you dont have to buy those expensive Stihl tubes of grease from the dealer.
Andrew Wilding Basically it was done just to see how it would work. Thanks for watching!👍🏻💯
Actually I might be wrong here another video showed advising only using stihl grease in stihl heads.
Andrew Wilding you might have seen a vid that said that but IMO another grease with the same properties would work just fine.
That’s a great idea really. Until you go to back that bolt out someday when the fitting fails and half the drilled bolt end up in the gear box. Otherwise that’s awesome.
Justin Mullet what happens when someone smashed a zerk with a hammer and the ball and spring end up in the gears. Had one fail like that on a new u-joint and that was without the hammering.
It's a half inch bolt, as well, so it is easily removed without drilling.
Loosening a small nut 3-4 times a yr if used commercially and once a yr or longer for regular use is VERY cumbersome and time consuming. Then the pain staking time spent twisting on those handy little grease tubes is just unbearable.......
Honestly though I can see how people see others doing this and think "wow I wanna be cool too" but I've never drank the kool-aid. If you really wanna do your trimmer a service about once a yr take the head off, pop the seal, and proceed to push out any old grease when you put in the new. Also if I were ever to do this I think I'd just go threaded instead of tap.
If you want to use a threaded Zerk you would have to do that with a tap.
Good tip, is the Stihl grease any different from what is in your grease gun
Yes. It is much more expensive per oz.
I am the way the truth and the life!
Jesus Christ yes...yes he is.
I stopped watching when I saw the drill turning counter-clockwise 🙄
Lol All these armchair quarterbacks are a trip , nice job dude ! 👍
It’s a Torx not a torque.
Can you use like an all purpose grease or white grease instead of the stihl brand one?
I hope that your gears fail on the trimmer and that Stihl does not honor the warranty. If it was a good idea to replace that bolt with a zerk fitting, Stihl would have done it in the factory!
The Stihl heads are made so the excess grease runs into the shaft. This advice given here is poor because the right grease zerk can be found to match factory threads.
@@chuckmason7930 This is true. Pump in the good grease once a season and clean up the bad grease from the shaft end (requires removing two screws). Also, you can fill the gearbox with the Stihl tube just as easily -- just don't overfill it. The advantage of the Zerk fitting is that you don't have to buy expensive Stihl grease tubes. I just use Lucas red Tacky from my grease gun - one grease means no soap incompatibility problems.
Why dont they come with zerks?
Because not everyone has a grease gun.
Because to much grease is a bad thing. If its got to much grease it will run hot. Besides that you keep pumping grease in it and eventually you will blow your seal out. Its got to go somewhere.
Stihl wants you to buy their screw on mini cartridges. Which don't fit other brands.
Please do not do this to your stihl 😫 😭
The old grease needs somewhere to empty out from.
Why not buy a zerk that fits ?
it a good thought , i don't like this idea, and you should of tap over wood or plastic not a hammer on top of the fitting
Bad advise all around. Sorry but you said to comment.
TORX
No is not do at home at night thin get Done with your job takes about few minutes that is it
Stupid idea!
Rob Rees thanks for taking the time to drop a comment. 👍🏻
I work on STIHL About 456,000 day do that STIHL tall them no do gave new nut tall them no if do one more time not fix it sorry one guy hem someone say no to hem keep borke it all miss up with nut keep