Stihl HLE71 long reach hedge cutter, gearbox slipping

[John123]

Hello!

 

I have a Stihl HLE 71 long reach hedge cutter, which is 2 years old, I bought a good make hoping it would last, it's only been used a couple of times a year for cutting my garden hedge and has already gone wrong.

 

The problem I have is that the gearbox is slipping after it's warmed up after about 15 minutes running, then the blades will not move or move very slowly, but the motor is running at full speed. When it cools down again it works alright for a while, until it warms up again. I've had the gearbox apart and I cannot see anything wrong, looks like new inside. Does anyone have any ideas as to what part could be faulty, as I didn't really want to buy a whole new gearbox.

[lurkalot]

There's a plastic sleeve (or adaptor) pressed on to the end of the motor shaft, this connects to the drive shaft.  It has a square on one end to connect to the drive shaft, the other end is a round hole pressed over the splined motor shaft.  These tend to slip, or tare out completely.  There is a modified version of this adaptor, which you should get as standard if you order a one.

 

I'm betting this is your problem, as I've changed a few of them.

[spudulike]

Probably the clutch shoes are corroded and stuck on their bushes. Strip, drive the bushes out, clean lubricate and reassemble. I am not familiar with the model but am assuming it is similar to other models!

[lurkalot]

14 minutes ago, spudulike said:

Probably the clutch shoes are corroded and stuck on their bushes. Strip, drive the bushes out, clean lubricate and reassemble. I am not familiar with the model but am assuming it is similar to other models!

Spud, the HLE71 is a electric machine and doesn't have a clutch.

[spudulike]

Ooopps,

[lurkalot]

20 hours ago, spudulike said:

Ooopps,

lol..   No problem. 

 

Anyway here's the part number of the drive adaptor mentioned above, 4810 710 7600  Hope this helps.