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Use of Collets, Chucks, and Face Plates<br />

SHCS<br />

LC5C-B<br />

HA5C<br />

Face Plate<br />

HA5C – The unit accepts standard 5C<br />

collets and step collets. When inserting the<br />

collets, align the keyway on the collet with<br />

the pin inside the spindle. Push the collet in<br />

and turn the collet drawbar clockwise until<br />

proper collet tightness is attained.<br />

Chuck Chucks and face plates use the 2 3/16-10<br />

threaded nose on the spindle. Chucks that<br />

70 FT Lbs. are have no more than a 5" diameter and<br />

weigh less than 20 pounds are recommended.<br />

Pay special attention when installing<br />

chucks, always make sure that the thread and the outside diameter of the spindle<br />

are free of dirt and chips. Apply a thin coating of oil to the spindle, and screw the<br />

chuck on gently until it seats against the rear of the spindle. Tighten the chuck to<br />

approximately 70 ft.-lb with a strap wrench. Always use a firm, steady pressure to<br />

remove or install chucks or face plates, otherwise damage to the indexing head<br />

may result.<br />

A6AC Air Collet Closer (HRT)<br />

WARNING !<br />

Never use a hammer or pry bar to tighten the<br />

chuck, this will damage the precision bearings<br />

inside your unit.<br />

B C<br />

A<br />

D<br />

Manual Collet Closer<br />

AC25<br />

AC125<br />

AC100<br />

The A6AC collet closer bolts to the<br />

back of the HRT A6 (See the following<br />

illustration). The drawbar and<br />

collet adapters are designed to mate<br />

with the <strong>Haas</strong> A6/5C spindle nose.<br />

The optional A6/3J and A6/16C can<br />

be obtained from a local tooling<br />

distributor. Failure to follow the<br />

A6AC installation instructions may<br />

result in thrust bearing failure.<br />

NOTE: A special drawtube adapter is required for the 16C and 3J. Make<br />

sure to supply the tooling distributor with spindle/drawbar details as<br />

shown.<br />

96-0315 Rev P<br />

April 2012<br />

19<br />

Original Instructions

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