Hi, first time poster here

I have a spindle drive fault on a Cincinnati Milacron Maxim 500 with Acramatic 950 controls

The fault 18701 occurs when trying to start the machine hydraulics, has a F 53 fault on the spindle control which just will not reset.
Only have got myself familiar with these machines in the last 12 months or so and never come across this fault.

Any help/advise will be much appreciated.