Évaluations - 2, GPA: 5
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Facilité d'utilisation
20) to desired rate. Note: for threading, lever (D) will be set at "C" or "E", depending on desired thread. 3. Push lever (B, Fig. 19) to the right. 4. Engage the half nut lever (C, Fig. 19). 5. To cut inch threads, reference the feed and thread tables. The half nut lever and the threading dial are used to thread in the conventional manner. The thread dial chart specifies at which point a thread can be entered using the threading dial. 6. To cut metric threads, the half nuts must be left continually engaged once the start point has been selected and the half nut is initially engaged (thread dial cannot be used). 19 Metric Thread Table Inch Lead and Feed Table Cross Feed Table 20 Compound Rest The compound rest is located on top of the cross slide and can be rotated 360 degrees. Loosen the two socket head cap screws (A, Fig. 21) on the compound rest base. There is a calibrated dial (in degrees B, Fig. 21) below the rest to assist in placement of the compound to the desired angle. Adjustments After a period of time, wear in some of the moving components may need to be adjusted: Saddle 1. Locate four hex nuts found on the bottom rear of the cross slide and back off one full turn each. 2. Turn each of the four set screws with a hex wrench until a slight resistance is felt. Do not over tighten these screws. 3. Move the carriage with the hand wheel and determine if the drag is to your preference. Readjust the set screws as necessary to achieve the desired drag. 4. Hold the socket set screw firmly with a hex wrench and tighten the hex nut to lock the set screw in place. 5. Move the carriage again and adjust again if necessary. Note: over adjustment will cause excessive premature wear of the gibs. Cross Slide If the cross slide is too loose, follow procedure below to tighten: 1. Loosen the rear gib screw (not shown) approximately one turn. 2. Tighten the front gib screw (B, Fig. 22) a quarter turn. Turn the cross slide handwheel to see if the cross slide is still loose. If it is still loose, tighten the front screw a bit more and try again. 3. When the cross slide is properly adjusted, tighten the rear gib screw. Note: over adjustment will cause excessive premature wear of the gibs. Compound Rest Follow the same procedure as the cross slide adjustment to adjust the compound rest. Rear gib screw is shown (A, Fig. 22). Front gib screw (not shown) is by the handwheel. 21 Tailstock If the handle will not lock the tailstock, follow the procedure below : 1. Lower the handle to the unlocked position. 2. Slidethe tailstock toanareathat allows access to the underside of the tailstock. 3. Tighten tailstock clamping bolt (underside of tailstock) 1/4 turn. Test for proper locking. Repeat as necessary. Tailstock Off-Set Follow the procedure below to off-set the tailstock to cut shallow tapers: 1. Lock tailstock in position by raising locking handle (A, Fig. 23). 2. Alternately loosen and tighten two hex socketcap screws (B,Fig.23). Tailstock Gibs Take up play in the tailstock by tightening two gib screws (C, Fig. 23) on either side of the tailstock base. Note: Do not over tighten. Excessive tightening will lead to premature wear of the gibs and mating parts. Headstock Alignment The headstock has been aligned at the factory and should not require adjustment. However, if adjustment is deemed necessary, follow the procedure below to align the headstock: 1. Using a machinist's precision level on the bedways, make sure the lathe is level side to side and front to back. If the lathe is not level, correct to a level condition before proceeding. Re-test alignment if any leveling adjustments were made. 2. From steel bar stock of approximately two inches in diameter, cut a piece approximately eight inches long. 3. Place two inches of bar stock into chuck and tighten chuck. Do not use the tailstock or center to support the other end. 22 4. Set up and cut along five inches of the bar stock. 5. Using a micrometer, measure the bar stock next to the chuck and at the end. The measurement should be the same. 6. If the measurements are not the same and adjustment is required, loosen hex socket cap screws (A , Fig. 24) which holds the headstock to the bed. Do not loosen completely; some drag should remain. 7. Adjust two screw nuts (B, Fig. 24) located on the endgear side of the headstock. Loosen one and tighten the other. Make another cut. Keep adjusting screw nuts after each cut until the bar stock measurements are the same. Tighten all headstock screws. Removing Gap Section 1. To remove gap section, locate two nuts (A, Fig. 25) in the center of the gap section. 2. Using an open end wrench, tighten the two nuts. This will cause the taper pins to release. Remove the taper pins. 3. Remove six hex socket cap screws (B, Fig. 25) with a hex key wrench. 4. Gap section can now be removed. Installing Removable Gap Section 1. Clean the bottom and the ends of the gap section thoroughly. 2. Set gap section in place and align. 3. Remove nuts from the taper ...
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