APRON CONTROLS (Lever type)
in addition to handwheel traverse, the carriage can be power-operated through controls on the front of the apron
see Fig 16 knob (A). If move handle (A) upwards, carriage
would do longitudinal-feed operation. If move handle (A)
in middle position, it would do manual operation. If move handle(A) downwards it would do cross-feed operation
lever(B) is pressed downward to engage the leadscrew nut for screwcutting to avoid-undue wear. release the nut except when screwcutting