1601 J. P . Hennessy Drive, LaVergne, TN USA 37086-3565 615/641-7533 800/688-6359 Manual Part No.: 929250 09 HENNESSY INDUSTRIES INC. Manufacturer of AMMCO ® , COATS ®...
For additional copies of either, or further information, contact: Hennessy Industries, Inc. 1601 J.P . Hennessy Drive LaVergne, TN 37086-3565 (615) 641-7533 or (800) 688-6359 www.Hennessy-Ind.com iv • AMMCO 3850, 3860 Brake Lathes...
3. Keep all guards, shields, and covers in place and in working order. 4. Keep bystanders out of work area. 5. Unplug unit from power source before servicing or adjusting. 6. Maintain unit properly, keep work surfaces and work area clean. AMMCO 3850, 3860 Brake Lathes • v...
16. Secure the work properly to the unit for setup and tool bit positioning. Do not attempt to hold a drum or rotor steady on the arbor with your hands. Both hands must be free to operate unit. SAVE THESE INSTRUCTIONS vi • AMMCO 3850, 3860 Brake Lathes...
Our willingness to assist in every possible manner does not make AMMCO responsible for collection of claims or replacement of lost or damaged materials. Shipping damage claims will not be handled under warranty.
Note: Look for this plate on the lathe. It has been placed on the unit to assist you while working with the lathe. Notice also that rotor and drum positions are indicated on the handwheel with arrows pointing inward and outward. 4 • AMMCO 3850, 3860 Brake Lathes...
0.002” . A 0.010” cut (five micrometer divisions) from an 8” drum will result in a refinished diameter of 8.010” . (3860 ONLY) The divisions on the micrometer dial of the adjustable drum boring bar indicate actual depth of cut. A 0.010"...
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6. Wrap the drum silencer band snugly around the drum. The band must fully cover the outside of the drum (Figure 8). (3860 ONLY) Turn the end knob of the tool bar counterclock- wise until the tool bit is fully retracted.
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Clean metal and cutting .030 is aligned with the mark. debris from the adapters, spacers, arbor, and lathe. Important: Read and understand the description of Negative and Positive Rake bits on page 3. 8 • AMMCO 3850, 3860 Brake Lathes...
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.002". A cut of .002" from an 8" drum will result in a refin- ished diameter of 8.004". Note: A round, smooth, flat drum may require only a finish cut .002"—.004" deep. AMMCO 3850, 3860 Brake Lathes • 9...
Tighten the self-aligning nut to 50 foot pounds after cutter Figure 17 - Attach Silencer Band is positioned. AMMCO 3850, 3860 Brake Lathes • 11...
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Do not allow the adapters to rotate along with the rotor. Retighten the arbor nut. 18. Turn the handwheel counterclockwise a half turn to move the tool bit away from the first scratch cut. Figure 21- First Scratch Cut 12 • AMMCO 3850, 3860 Brake Lathes...
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Back the handwheel off a half turn after hat is cleaned. 24. Dial both tool bit control knobs to zero and then dial in an additional .005 inch minimum for positive AMMCO 3850, 3860 Brake Lathes • 13...
B. Use a shop vac to help keep the lathe and bench area clean of metal chips, dirt and debris that can dam- age the lathe and affect performance. Dispose of the material properly. AMMCO 3850, 3860 Brake Lathes • 15...
Adjust again if the smoothly with only moderate force. Use a 5/32 inch movement is jerky or difficult. allen wrench on the set screws. 16 • AMMCO 3850, 3860 Brake Lathes...
8. Slowly loosen the allen head cap screw until the tool holder slips back. 9. Screw the micrometer all the way in and repeat steps 7 and 8 for the other allen head cap screw. AMMCO 3850, 3860 Brake Lathes • 17...
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