Reversing single phase motor... brushing up on theory?

I'm trying to repair a car lift ramp which is powered by a single phase AC motor, the motor has two capacitors on it. Just need to get my head around the 4 wires that go to the motor to eliminate them from my search for the fault :)

When the contactors are 'pulled in' to make the ramp go up, the terminals are:-

1= Live, 2= Neutral, 3= Neutral, 4= Live

Am i right in thinking that 1&2 could be start windings and 3&4 run windings? because when the contactors are pulled in to make the ramp go down, the terminals are:-

1= Neutral, 2= Live, 3= Neutral, 4= Live,

So the run circuit is the same for both but the start is reversed depending on which way you want the motor to rotate, therefore the ramp to move?

Any help would be gratefully appreciated, i am currently in an internet cafe and don't have time to register (hence 'Guest') but i shall be doing so as soon as my home internet is fixed :(

Many Thanks,

Ray