I'm interested in how others do this, too.
For me, I just cut a piece of aluminium sheet the size of the hole and
nailed it down in there. Then applied a good squeeze of washing up
liquid onto the sheet where the legs of the machine would have to run.
Then got it partially into the hole with the back feet on the sheet.
Then I laid myself down on the floor, lined up with the thing, applied
steady pressure with my feet and in it slid - just by pushing it with my
feet.
Once the washing up liquid started to dry out, it made the washing
machine legs stick to the sheet. So the machine doesn't wander side to
side or front to back.
Getting it back out again is going to be far more interesting..
--
Sue
I agree with the feet trick, but be careful when pushing with the feet
as it is easy to dent the metalwork, it is best to push near the outer
edges, working left, then right, but only about 1 inch at a time. To
remove the machine, I find it easiest to open the porthole door, then
gripping with one hand at the top of the opening, lift and drag the
machine at the same time.