AMT 4562 - Operation; Round-Out Tolerance; Lubrication; Maintenance

OPERATION
Use scrap material for practice to get the feel of the machine before attempting regular work.
1. Screw tight the object on the working table while drilling, so as to prevent injuries and to have a
precision workmanship.
2. You can place the size of drill bit you desire in the chuck.
3. Plug the electric socket to the outlet and turn the switch “ON’* then the spindle shaft will rotate
freely.
4. When drilling, hold on the feed handle Q), See, Fig. 5. and press downward.
5. Factors which determine the best speed to use in any drill press operation are: Kind of material being
worked, size of hole, type of drill or other cutter, and quality of cut desired. The smaller the drill,
the greater the required RPM. In soft materials, the speed should be' higher than for hard metals.
See “ADJUSTMENT” section item 6.
6. Use clamps to hold the work when drilling in metal. The work should never be held in the bare hand;
the lips of the drill may seize the work at any time,especially when breaking through the stock. If the
piece is whirled out of the operator’s hand.he may be injured. In any case,the drill will be broken when
the work strikes the column. The work must be clamped firmly while drilling; any tilting twisting or
shifting results not only in a rough hole, but also increases drill breakage. For flat work, lay the piece
on a wooden base and clamp it firmly down against the table to prevent it from turning. If the piece is
of irregular shape and cannot be laid flat on the table, it should be securely blocked and clamped.
7. Boring in Wood Twist drills, although intended for metal drilling,may also be used for boring holes in
wood. However, machine spur bits are generally preferred for working in wood; they cut a square
bottom hole and are designed for removal of wood chips. Do not use hand bits which have a screw tip;
at drill press speeds they turn into the wood so rapidly as to lift the work off the table and whirl it. For
throgli boring, line up the table so that the bit will enter the center hole to avoid damage. Scribe a
vertical line on the front of the column and a matchmark on the table bracket, so that the table can be
clamped in center position at any height. Feed slowly when the bit is about to cut through the wood to
prevent splintering the bottom face. Use a scrap piece of wood for a base block under the work. This
helps to teduce splintering and protects the point of the bit.
ROUND-OUT TOLERANCE
l ot drilling operations requiring dose tolerances, place drill blank in the chuck and check round out with
a dial indicator if the. round-out is not within desired tolerance, tap the chuck bottom with a rubber or
leather mallet until you get the desired tolerance.
LUBRICATION
The ball bearings in the quill and V-belt pulley are grease-sealed for life. Pull quill down to maximum
depth and oil moderately once every 3 months.
Oil slide bars lightly every 2 months. Grease bracket if cranking becomes difficult.
MAINTENANCE
After using the machine you have to clean it completely and lubricate all sliding and moving parts.
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