Only three items required in any tool kit 1.Gaffer tape, 2.WD40, 3. lump hammer.Love the fact that it’s a precision build, with measurements down to millimetres, but at 1:55 there’s a fella whacking the big steel rake with a hammer.
If it moves and it shouldn't - gaffer tape it. If it doesn't move and it should - spray it with WD40.
If neither of those work - hit it with the hammer.