I'm no electrician, i haven't touched it so assuming motor end is as it should be, not sure what to do with what I assume are two neutrals and two lives?
Thanks, no idea what it's off, 8.75rpm and some wire cable suggests some sort of winch or hoist to me. No switch no, I just would like to get it wired up to test, not really fussed the direction or whether or not it is reversible.
It seems to have an electric brake fitted, which would account for the extra wires. It's difficult to make out how it's connected. A much closer, in focus, picture of the junction box would help.
Yes. I think that A1 and A2 are for the run winding and Z1 and Z2 the start winding, although I can't see any other connections that might be the winding.
Can you tease the wires out of the box out so that we have a clearer picture? Also, can you confirm that the white wire from the top of the box connects into a unit at the top of the picture?
I agree with Bond that it has been wired for reverse, which makes sense if it's a winch. You could just suck it and see. Connect the black wires, one to line (brown) and the other to neutral (blue), and switch on. If it runs you reverse the motor by swapping over the two black wires.
Great. Before you do that have a look at what I still think is an electric brake. If that's faulty (open circuit) then the motor will be trying to turn against the braking effort.
If you have a multimeter you could check the coil. Disconnect one of the grey wires and measure the resistance between the pair. Alternatively, disconnect both and connect them to the power. Without the noise of the motor it should be possible to hear the brake operating. If it does operate it may be that it's out of adjustment causing binding of the motor shaft.