Acer e-mill 3VK, Operation Manual

Page: 102 / 203

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When shifting to “LO” DO NOT FORCE THE LEVER if the back -gears to not
mesh. Hold the lever so that the gears are clear of one another, r otate the spindle
nose by hand until the gears line up, then put the unit in “LO” (back -gear).
500 to 4500 RPM is obtained through the direct drive and is referred to as high
range. The same procedure as above is used to select this range, except the HI -
NEUTRAL -LO lever is set in the “HI” position.
Wear on the V belt will cause a slight difference between the actual speeds and
those show n in dial windows . This ca n be corrected as follows: Turn the variable
resistor knob clockwise until it stops . (This wi ll be near the 45 00 reading on the
counter .) Use a tachometer to determine the spindle speed, and then adjust the
parameter value inside the inverter until the spindle speed registers 45 00 on the
tachome ter.
CAUTION
DO NOT SHIFT THE HI -NEUTRAL -LO LEVER WHEN
THE FEED GEAR IS ENG AGED.
DO NOT LOOSE N the 3 hex nuts on the upper part of the Quill Housin g. These are
set at the factory and are used only for alignment.
SWIVELING THE VARI -DRIVE may be accomplished by loosening the lower 3
hex nuts attaching the Vari -Drive unit to the quill housing and then swiveling to
any desired position. See arran gement of T -Bolts in Gear Housing for this purpose.
CAUTION
CARE MUST BE TAKEN T O SECURE THE NUTS WHEN
THE ATTACHMENT IS IN POSITION, BEFORE THE
MOTOR IS TURNED ON.