Greenworks 40v Long Reach Hedge Trimmer (Stopped Working)

[dc8871]

Hi all.

I have a G40PSH (Greenworks 40v Long Reach Cordless Hedge Trimmer) which I have taken apart before to sharpen the blades. Only this time I put it back to together and there is no responce when the trigger is pulled. Tried 2 batteries, and it works fine with its chainsaw head.

It was 6 screws to remove the plastic case, inside all there is is:

• a little (what I guess is called) an electric motor about 3 inches long, grey cylinder with 2 wires, 1 black, 1 red, coming out of it and running up into the handle.
• a little gear box type thing attached to the business end of the electric motor, with a small gear (from the motor) and a larger gear intertwinned (to large gear is attached to the blades)

I always take care not to jostle the wires too much in particular, and when putting it back together place all the spaces and washers and screws where they went.

I have opened this maybe 5 times to clean it out.

Would a multimetre help to test the motor?
Does turning the cogs the 'wrong' way break an electric motor. Thats the only thing I can think slightly perhaps.
What would I check with the multimetre to see if the motor is broken?

Thank you very much for any insights.

 

[Avo Mk8]

Would a multimetre help to test the motor?

Using a multimeter to measure the resistance of the motor, on the two pins that connect in the handle, would be a good first step to discovering if the wiring has been disturbed. You should see a few tens of ohms across the contacts where the trimmer head connects to the pole.
I have one of those G40PSH sets, unfortunately not with me at the moment!
I don't think there are any safety switches or complications in the trimmer head, so it should be a straightforward matter of checking continuity with a meter to find what's wrong.

 

[dc8871]

Using a multimeter to measure the resistance of the motor, on the two pins that connect in the handle, would be a good first step to discovering if the wiring has been disturbed. You should see a few tens of ohms across the contacts where the trimmer head connects to the pole.
I have one of those G40PSH sets, unfortunately not with me at the moment!
I don't think there are any safety switches or complications in the trimmer head, so it should be a straightforward matter of checking continuity with a meter to find what's wrong.

Thank you I will try that and report back

 

[brianmoooore]

Is it possible that you've reassembled the hedge trimmer part incorrectly so that it's jammed up solid, and that the motor simply can't turn, even though it's receiving power?