Sonya
It is hard to know what you mean by a 'lino' floor - is this the soft type you can get in domestic kitchens or more of a thermoplastic? I should imagine it is the latter as it is in a communal corridor. Before you do anything check that the flooring is laid properly with no gaps at the edges etc as you will be laying alot of water for this job and you don't want to risk water getting underneath.
Using a a numatic scrubber is fine but I am assuming you have a standard size (15" or 17") so you may have difficulty reaching the edges of a hall way, make sure you also take a doodlebug (a pole with a flexible head that heavy duty scourers fit to).
If there are scuffs, scratches, dips and bumps you need to make sure the client is aware that these may not be removed. Make sure you have plenty of wet floor signs with you and tape of the area if poss. Lay your stripper on the floor and use your scrubber with a green or black pad, have a coffee break (lovely!) while you leave it to do it's job then scrub again. Ensure you remove all of the stripper (and sludge!) from the floor, use a wet vac if poss (be careful because the floor will be exteremly slippy at this point). Clean the floor with plain water, at this point I would flood it somewhat if it is safe to do so, ensure you leave no residue on the floor and mop as many times as need be to acheive this.
Once the floor is completely dry lay your seal/polish in thin coats leaving to dry inbetween.
Make sure the floor is not walked on until the polish is completely dry and I suggest leaving it at least 24hrs before any buffing is carried out.
Hope this helps you.
Fox