Harig AUTOMATIC PLC, Manual

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The 9A-46-H8-V52 wheel furnished with the machine works well if used with a mist or wet
coolant and can be used dry if care is used to prevent heat buildup. If difficulty is experienced,
use a still softer and more open wheel such as a 32A46-G12BEP.
2. Dress the wheel rather coarsely with a sharp diamond. Cross feed the diamond at a fairly rapid
rate (15 in./min.) and do not pass under wheel unless down feed at least .0005 inches. Tighten
the screws holding the chuck to the table with minimum force needed to keep chuck in place.
Over tightening may cause warping.
3. The chuck must be in the “on” position while being ground.
4. It is best to grind the chuck with hand feeding so any increase of cut caused by heating can be
detected. If power feeding, use ¾ of maximum speed. (52 ft./min.)
5. Take a cross feed cut of at least .060 inch for each pass, and set the depth of cut to .0002 inch.
6. Dress the wheel after each cut across chuck to remove any “lead”.
7. A loaded wheel, whether caused by heavy cuts, improper dressing or the wrong type of wheel,
can create heat building sufficient enough to warp the center of the chuck up into the wheel and
seriously affect chuck flatness.
PROPER TORQUE FOR CHUCK MOUNTING
MAXIMUM TABLE WEIGHT WITH MAGNETIC CHUCK
612 Steel, Turcite or Plain Ways: 160 Lbs
618 Steel, Turcite or Plain Ways: 200 Lbs
Left, 15 Ft.lbs
Fig 9
Right, 10 Ft.lbs
MAINTENANCE
This precision surface grinder is equipped with an automatic “Flo-Clean” oil system. Unlike any
other grinder, this completely separate system circulates, filters and re-circulates the
cleaning/lubricating oil. All moving mechanical and wear surfaces are automatically and
continuously flushed with filtered oil whenever the spindle is running.
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