i suppose you could use other fluids to test the pump like diesel fuel or kerosene,
but you'll need to be careful to clean and re-oil the surfaces before use.
my Ammco7 is 100% manual oiling through oil ports.
i'd like to retrofit a one pump system or a pressure lube system.
i have had trouble removing hand wheels from many types of equipment.
if i get a tough one, i'll generally try heating with a heat gun- then apply the mechanical advantage of the puller.
grab as close to the shaft as possible, pullers applied on the OD of very large pulleys can easily snap a pulley or handwheel
i try to use bearing separators whenever possible.
they can often save you an otherwise trashed assembly- if used correctly
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