Make sure the head movement controls work. In one mode the head can be moved up and down with the might of your arms, in the other mode twisting the handle will move the head on gears.
On my 1200, the former works, but the latter does not.
Shoot6x7, if the handle spins but the head doesn't move when the handle is locked, the friction connection between the handle and gear is probably out of adjustment. This is what I fixed with mine. If you take off the cover (four little screws, two on each side), you'll find two tensioning screws. Turn them clockwise a turn or so to see if that fixes your problem. If you look closely at the mechanism while twisting the "mode" part, you'll see how it all works.
