Stihl hl75 long reach trimmer blades not moving

[chris1682]

Hi all

 

Not sure where to post this one

 

The blades have stopped moving so inspected the gearhead and all seems fine. If I manually turn the gears using a screwdriver the blades move ok.

 

So to does the metal rod shaft when the engines running, it moves freely without the gearhead attached , so in otherwords under load the blades don't move but do when removed, would this indicate a worn clutch or am I a million miles off? Any help would be appreciated

 

Many thanks

[Paul Jenks]

There may be too much grease in the head. I always dribble a bit of petrol over the blades prior to running up as they can get quite bound up with sap. The petrol breaks it down quite well. Obviously don't do this over the clients grass, shrub bed, tarmac drive etc etc.

[GardenKit]

Sometimes the long shaft between engine and head becomes loose and moves away from either the engine or the head, allowing the splines to come apart. Just slacken the clamps and push it fully home. You have already done the head end, so check the engine end.

 

Or, it could be a worn clutch as you have suspected.

 

Or it could be worn splines in the clutch drum and on the shaft.

 

Try these simple things first.