Harig AUTOMATIC PLC, Manual

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You may park the table at any time during a cycle. Simply turn the table switch to the
OFF position and hold for two seconds.
CHANGING THE DIRECTION OF THE TABLE PARK
The table park is set to park towards the right as a default on your grinder. To change
the direction of the park turn the “Hydraulic” switch and the “Table” switch to the OFF
position at the same time for four seconds. The table light will flicker for about 8
seconds, and then the change will be complete.
GRINDING WHEEL MOUNTING
Use only balanced wheels to ensure getting the maximum quality this precision machine is
capable of producing. When specific problems regarding wheels selection are encountered,
contact a grinding wheel manufacturer or its local representative for recommendations.
The spanner wrenches
(furnished)
fit the wheel hub nut, which holds the grinding wheel on the
adaptor, and the two holes in the back of the adaptor. Unless a right-hand thread has been
specifically ordered, the wheel hub nut has a left-hand thread
(letters LH stamped on face of nut)
so that the wheel will tend to tighten under starting torque. When changing wheel, be sure
adaptor is retightened. If left loosed, wheel may shift and cause chatter marks.
The socket on one spanner wrench fits the nut holding the adaptor on the spindle. To remove
adaptor, unscrew nut completely
(left-hand thread)
and screw in the “puller”
(furnished)
until the
center screw hits the spindle end. Tighten center screw until adaptor is free
. (Fig. 8)
Fig. 8
GRINDING MAGNETIC CHUCKS
A magnetic chuck with an untrue bottom can distort a surface grinder table to which it is
clamped. For this reason, the bottom should be wiped dry, placed on a surface plate and checked
for bow. If the chuck rocks or pivots rather than having an even drag, place it face down on the
platen and grind the bottom flat. If a surface plate is not available, use the grinder’s platen.
CAUTION: Never
grind the platen, as this can impair accuracy.
Grinding the chuck surface requires special technique and great care. The “lead” filling between
the magnetic poles tends to load the wheel and will cause the unsupported areas of the chuck
over the magnet to move with any temperature difference created by grinding. Follow these
instructions carefully:
1. Use a relatively coarse grit wheel of medium grade and open structure with a vitrified bond.
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