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Resumen del manual
Ignoring this warning can lead to a severe crushing injury or finger amputation! Specifications • OD Clamping....... 0.69"–10.04" (17.5–255mm) • ID Clamping........... 3.74"–10.83" (95–275mm) • Chuck Bore Diameter.................2.56" (65mm) • Chuck Outer Diameter...........11.81" (300mm) • Maximum Speed............................2500 RPM* • Mounting Type.......................... D1-8 Camlock • Construction...................Fine-Grain Cast-Iron • Chuck Weight.......................................... 80 lbs • Chuck Shipping Weight.......................... 85 lbs • Country of Origin................................. Taiwan * The maximum speed listed above is ONLY possible with the chuck jaws and the workpiece in complete rotational symmetry. The workpiece weight must be within the limits of the lathe, and the workpiece mass must be of equal density throughout to prevent centrifugal imbalance or radial runout—even if a tailstock or other support is used for additional support. Instruction Sheet PHONE: (360) 734-1540 • MODEL SB1231 12" 4-JAW INDEPENDENT CHUCK Copyright © October, 2010 by South Bend Lathe Co. WARNING: No portion of this manual may be reproduced without written approval. #CR13310 Printed in Taiwan Figure 1. Features. Introduction The Model SB1231 uses a direct mount D1-8 camlock system where the camlock studs are directly threaded into to the chuck body instead of being threaded into a backing plate that is bolted to the chuck. Without using a back plate to mount the chuck, the chuck jaws are positioned closer to the headstock which gives a longer distance between the jaws and the tailstock. Another benefit is that the distance between the jaws and the outboard spindle nose is reduced, so if a spider support is used on the outboard spindle, short gun barrels and other shorter workpieces can be held at both ends. Manufactured with high-tech German CNC machinery Fine-grain cast iron body Hardened steel jaws for durability and extreme clamping force and grip Independent jaw screws for each reversible jaw Direct camlock spindle mounting Jaw screw retaining pin with lock screws Model SB1231 INSTRUCTIONS Mfg. Since 5/10 Safety • Chuck Key Safety: A chuck key left in the chuck can become a dangerous projectile when the spindle is started. Always remove the chuck key after using it. Develop a habit of not taking your hand off of a chuck key unless it is away from the machine. • Disconnect Power: Disconnect the lathe from power before installing and removing the chuck or doing any maintenance or adjustments. Accidental lathe startup can cause severe injury or death. • Secure Clamping: A thrown workpiece may cause severe injury or even death. When swapping the chuck jaw positions, keep in mind that maximum gripping force is attained at full jaw and jaw screw engagement. If only one is partially engaged, overall clamping force is reduced. • Speed Rates: Operating the lathe where maximum chuck speed is exceeded, or at too high of a speed for an unbalanced workpiece, can cause the workpiece to be thrown from the chuck. Always use the appropriate feed and speed rates. A thrown workpiece may cause severe injury or even death. • Large Chucks: Large chucks are very heavy and difficult to grasp, which can lead to crushed fingers or hands if mishandled. Get assistance when installing or removing large chucks to reduce this risk. Protect your hands and the precision ground ways by using a chuck cradle or piece of plywood over the ways of the lathe when servicing chucks. • Safe Clearances: Often chuck jaws will protrude past the diameter of the chuck and can contact a coolant nozzle, tooling, tool post, or saddle. Before starting the spindle, make sure the workpiece and chuck jaws have adequate clearance by rotating then by hand through its entire range of motion by hand. • Stopping Lathe By Hand: Stopping the spindle by putting your hand on the workpiece or chuck creates an extreme risk of entanglement, impact, crushing, friction, or cutting hazards. Never attempt to slow or stop the lathe chuck by using your hand. Allow the spindle to come to a stop on its own or use the brake (if equipped). • Long Stock Safety: Long stock can whip violently if not properly supported, causing serious impact injury and damage to the lathe. Reduce this risk by supporting any stock that extends from the chuck/headstock more than three times its own diameter. Always turn long stock at slow speeds. -2 Camlock Stud Installation The camlock studs that are shipped with this chuck may be pre-installed from the factory. If so skip this section and complete Chuck Installation and Removal on Page 4; otherwise, install the camlock studs as outlined below: 1. Oil and thread each cam stud into the chuck until the alignment groove is flush with the chuck surface, as shown in Figure 2. 2. Install and tighten the locking cap screw for each stud, making sure that the camlock studs can slightly rotate back and forth. Figure...