stihl hl-km 145 slipping

[philipn]

Hi - got a hl-km145 that is slipping as if gears are damaged. But gears all seem ok. Anyone any ideas? Thanks in advance

 

[CR888]

Make sure the shaft coupling connections are mating correctly and not slipping at the join. You have obviously opened up the gearbox there is the hedge blade G-box, the gear head at the end of the shaft & the articulating gear. Two sets of bearings and planetary bearing in blade box. You may have stripped gears for the articulating feature. I've rebuild a couple and there is a lot going on.

 

[philipn]

Thanks - stripped it completely and cleaned everything. Large gear at the back has a few teeth partially stripped. Only seen it after cleaned all the grease off. Solved

 

[CR888]

Ya the pinion gear, I remember heating up the gearbox and to get bearing out & the gears. If you order parts & want to rebuild it I can steer you through it. You'll want to download the workshop hl-km manual with all the diagrams & instructions.

 

[philipn]

thanks - dont know at the minute whether to buy new gear or not. A little worried the worm gear is a little worn also and could damage the new one. not worth buying both.

 

[CR888]

Yeah OEM parts in Ireland can add up fast, you often see cheap used units on EBay. I fixed a broken one with OEM gears and AM bearings & I ended up doing OK but I paid $40 for it after a dealer said it was unfixable and the seller on eBay sold it as parts.

 

[philipn]

yeah - maybe just sell it for parts. all good except the gear