Rebuilding long reach hedge trimmer head?

[jamesd]

As the title says i have a Stihl fs100 and the bearings in the hedge cutter head have all broken up has anyone tried to rebuild one of these? Or do you just buy a new head for it?

 

Many thanks, James.

[Pat Ferrett]

Not sure but I took the play in the blades out of my 42" hs 85 today by machining down the packers by .75 mm and its now pucker again.

[htb]

which bearings have gone the ones on the bevel gears or the ones on the blade oscilating shaft

[Pat Ferrett]

They are the packers that allow the blades to be sandwiched but as the blades wear the gap increases and they part rather than shear.

I have changed blades on the long reach, shortened shafts and welded cutter teeth back on so cant see any reason why you cant fix it, what you got to loose if its broken anyway.

Keep us posted with a few pics if you do pluck up the courage

[2stroke-ady]

I think you'll find only the two bearings on the input gear can be changed, the ones on the gear that drive the big gear in the bottom are an assembly. A gear kit was £150+ last time i looked! much more sensible to buy a new head if thats the case.

[Mark Bolam]

Same as Ady, new head made more sense to me.

[Eddy_t]

I've got one to rebuild, so if Steve sorts out the picture comparability for the app I'll post some pics, and mines a hl75

 

 

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[doobin]

Did one a few years back, parts were almost £100 then.

 

Robbing bastards.

[Warners]

If its bearings then pull it apart, measure the bearings and source elsewhere. Stihl will be expensive. We rebuilt a strimmer head which had a collapsed bearing recently. The bearing was a £1. Or get a new head and rebuild the old one as a spare?

[GardenKit]

Often if the bearings have failed there will be damage to the gears. The gears are only avaiable as a set (c/w bearings) at a cost of £157 plus vat (for the 0-135 degree model)

 

They are a bitch to fit, involving heating the housings. It depends on how you value your time, but at commercial labour rates its a no brainer. New head every time.