Tail lift wont go up or down - whirring

daesal:
Hi .
Possibly a simple question.I am trying to operate the tail lift on rigid lorry.
When I press the up button there is a whirring sound but no movement.
When I press the down button there is a non whirring sound but tail lift wont go down.
I was wondering if anyone had any ideas before I damage something more?
I’ve tge cover off but there doesn’t seem to be anything obvious.
All help appreciated in advance. Thanks

Have you released the safety catch :bulb: