How To Replaces Worn Out Hedge Trimmer Blades, Stihl HL-KM 145°

In this video, we'll tackle two essential maintenance tasks for your Stihl hl-km 145 hedge trimmer: replacing worn-out blades and cleaning & degreasing the gearbox. Learn how to safely remove the old ones, and thoroughly clean and lubricate the gearbox for smooth operation and extended blade life.
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[@dragosdaniel8315]

Great! It's all I needed, this video!cheers!!

[@jefffleet5724]

Nice one 👍✂️

[@911aircooled5]

Thanks, would have been good if you lifted out the cam drive too, 1, to check the wear, and 2 clean out the greese etc.

[@Tropazio]

Had mine apart but saw no way to remove cam drive.... How to do that?

[@911aircooled5]

@@Tropazio Once the under side (blades etc) have been removed, this free's up the bearing and cam on that side. Then flip it, remove the black handle on the otherwise. You'll see a nut holding the other side of the cam (spur) drive. Undo the nut and the cam spur drive can now just fall out. There is then a bearing on that side too, check for wear. Been a hold up for spares with Stihl, but now back on line. I replaced cam and bearings.

[@Tropazio]

@@911aircooled5 Many thanks

[@jasonhewlett1283]

👍. An essential bit of maintenance, my ego trimmers need greasing daily . I have not replaced blades yet , the gearboxes pack in first. 😐

[@ArnodJ]

After use I always clean them with a steel brush and then spray it with WD-40, sharp them 4 to 8 times a year. Anyway great video, keep up the great work! 🇳🇱

[@MrGardener18]

cheer mate.

[@GregsMowing]

ideally you want a lubricant spray, wd40 isn't a lubricant it removes any lubricant if anything.

[@ArnodJ]

@@GregsMowing it removes resins that build up in between the blades from all the cutter materials.

[@mariusmarius4832]

Needed this while ago..😊

[@pablo9364]

Excellent

[@MrGardener18]

Thanks

[@docjohnboy82]

The screws which hold the blades in place down the full length of blades, do these get fully tightened ? Or left with a bit of play to allow blades to move ?

[@MrGardener18]

They do want to be tight but not over tightened so the blades can't move.

[@jayeff3196]

I have the hedge trimmer attachment.....im doing a service on the piece but have a problem....the 2 blade retainer nuts are deeply sunk into the chassis....7 mm if I'm not mistaken....very difficult to get a socket on to....most of my equipment is Stihl and this is one of the worst design flaws I have ever came across....once I get the 2 nuts n bolts out I will either use washers to push the nut higher or make the recess wider by drilling the edges giving more access

[@GregsMowing]

Nice one, I've got a few in for sharpening at the moment, they all have a thin plate that goes between the circle washers under the white bar and the top blade. Not sure why yours hasn't got it.

[@MrGardener18]

Interesting I don't think ours has ever had that. I do have a newer model which now has a metal plate at the bottom probably to stop debris getting into it.

[@Tropazio]

I took mine apart, cleaned it and regreased it. It moves slowly but moves. I thought I put in too much grease but see it was about how much you added. I went back and removed a lot of the grease I added in the gear box prior to seeing your video. Should I go back and add more in the port? What else could make it go slowly as I cleaned the blades very well and wd'd them again once reinstalled. Thanks

[@MrGardener18]

Assuming the blades aren't too tight. I agree with you and Add a little more grease through the port shouldn't do any harm. It can be difficult to get the grease everywhere it needs to be.

[@Tropazio]

@@MrGardener18 Thanks so much.... will try

[@sleepinglioness5754]

Can you help....How do you repair a bent tooth on a hedge trimmer? Electric in my case.

[@MrGardener18]

@@sleepinglioness5754 Stihl do sell a bent tooth straightener kits for hedge cutter and I believe they've have done a video on its so worth looking for that. In practice you want to secure the blade on the vice with the offending tooth up then with pliers or something to grip the tooth just bend it back I've not tried it and I'm sure it is quite difficult to be it back perfect but worth a Go. Do wear gloves and take care.

[@sleepinglioness5754]

@@MrGardener18 Excellent! Thank you so much. Appreciate this information. Out of curiosity...would it still work if the tooth completely breaks off?

[@MrGardener18]

@@sleepinglioness5754 it probably would but I wouldn't recommend it. just in case it had damage the whole blade units and therefore make the blade weaker.

[@sleepinglioness5754]

@@MrGardener18 Noted....thanks so much. If only I were rich, I'd hire someone to just use their garden tools!! Thanks again, MrGardener.

[@sleepinglioness5754]

@@MrGardener18 Ok....just planning ahead. Thanks again.