Stihl KMR Articulated Hedge Trimmer mod to fix jumping problem

[GTS]

Evening All,

Stihl KMR articulated hedge cutter is jumping when under stress, cutting plus 8mm anything.
Below is a mod for everyone to fix their hedge cutter. Apparently Stihl are working on their issues but as it is now hedge cutting season and we need working hedge cutters now, here’s a cheap fix.
Below you will see I have ensured the sprung black handle on the main shaft will seat as closely as possible to engage the locating pin in as far as possible.
Then step 2, get a hole enlarger approx£7 the set and widen each oval hole of the “U” shape bracket to 6mm round.
This will ensure that the locating pin will seat inside the “U” shaped bracket correctly and be solid in the cut.
Enjoy and happier cutting

Nathan Robinson 

Gemstone Gardener and Gemstone Tree Surgery 

[wicklamulla]

good tip,  but there is so little 'meat' left on the U shaped bracket where you have enlarged the holes i can see problems with it fracturing.

[lurkalot]

On ‎14‎/‎10‎/‎2018 at 22:46, wicklamulla said:

good tip,  but there is so little 'meat' left on the U shaped bracket where you have enlarged the holes i can see problems with it fracturing.

I wouldn't worry about that part fracturing.   This one located pretty well as standard. 

 

Just had to fit a new housing to this one, and Stihls little mod kit, the "Strengthening plate" to supposedly stop the housing snapping.  Apologies in advance for the image quality.

 

Edited October 30, 2018 by lurkalot