Hi user101, Moderator Gadge and ODK members & Guests

Yes, I do not believe I handled your questions well at all.
I think I was too focused on your restoration objective than your first objective.
However, the bottom blade is very thin - it may have a season's work left in it.

Gadge will answer your question of WD-40 (I'm not the expert on these fluids).
I will get an answer for you on the email notification question.

So, lets deal with the primary issue I identified (height):-
[Linked Image]

As Gadge said, the adjuster bracket (9) has notched serrations in it for quick
height adjustment. Knob/nut (18)has a chamfer that meets the bracket to set the height.

Your photo shows washers; suggesting that either the bracket is worn, or the knob/nut chamfer.
Whatever case, the low height of cut will greatly impede use of this mower.

We need to loosen the fasteners and adjust the height; so that we can exclude height of cut
as a factor in the machine being difficult to push - and cut grass.

Note that screw (17) is slotted (for a screw driver). Have you tried loosening the screws
this way?

JACK.