Yes the powersteering pump will have to be moved forward to let the lower tube come out, in fact the whole bracket assembly on that side needs to be moved. The books recommend installing a long bolt though the top hole in the power steering pump bracket to slide it forward on.
Loosen but don't remove the support bracket at the front of the block, the lower tube bracket.
remove the belt
dissconnect spark plug wires
remove power steering pump to water pump bracket brace retaining stud nuts
remove two power steering pump bracket (the big one) to cylinder head retaining bolts and one stud nut
OPTIONAL: Install a 10x 1.5mm x 170mm bolt (6.5" long) into the top hole in the power steering pump bracket. Thread the bolt into the hole appoximately 5 turns
remove the power steering cap
slide the power steering pump bracket assembly forward on the stud and bolt that was installed in previous step
remove the outlet tube by pulling underneath the steering pump bracket assembly and up through the engine compartment
be careful not to scratch the sealing surfaces
it may be necessary to pivot the outlet tube clamping connector to gain clearance during removal
Have fun,
Vernon