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Page 4 SKU # 42976 FEATURES AND CONTROLS OF THE #42976 DRILL / MILL MACHINE 8 28 4 13 14 1516 17 18 5 12 191 9 20 6 7 3 2 3 10 11 9 23 25 2022 26 27 24 21 26 25 28 1. Column 2. Gear Strip 3. Head Crank 4. Vertical Head Lock 5. Chuck Feed Lever 6. Chuck Travel Limit Screw 7. Reference Scale 8. Chuck Fixing Lever 9. Chuck 10. Chuck Spindle 11. Chuck Spindle Collar 12. Motor 13. Drive Belt Cover 14. Motor Pulley 15. Transfer Pulley 16. Drive Pulley 17. Drive Belt Tension Lever 18. Drive Belt Tension Fixing Bolt 19. Head Rotation Control Lever 20. Horizontal Control Wheels (2) 21. Cross Feed Control Wheel 22. Butterfly Table Lock Bolts (4) 23. T-Slots (2) 24. Tray 25. Mounting Bolts (4) 26. Table Travel Stops (2) 27. Table Travel Limiter 28. Drive Belt Speed Chart 29. Drive Belts (2) Page 5 SKU # 42976 UNPACKING AND INSTALLATION 1. Remove protective crating and skids carefully. In the event of damage in transit, contact Harbor Freight Tools immediately. 2. The machine is carefully inspected and tested in operation before it leaves the factory. If any defects are found on delivery, contact us immediately. 3. Read the owner’s manual and become familiar with the parts and controls on the drawings before using this machine, as familiarity with the controls will enhance your ability and safety in using it. ASSEMBLY 1. After removing the machine from the crate and cleaning it, it must be mounted before use. 2. This machine can be mounted directly on a worktable, optional Stand (#42977), or floor. 3. The drill chuck must be installed. INSTALLATION 1. It is important that the machine be located on a hard, solid, level floor, worktable, or optional base, which is capable of supporting this heavy machine and the workpieces that are produced. Find a location that supplies easy access to 120 Volt electrical service. Make sure this machine is located in a well lighted and well ventilated area. The floor should be resistant to vibration. 2. Warning: Drill/Mill machines are inherently top heavy. Before moving the machine, be sure the head is fixed on the column. Before moving, lower the head as much as possible to lower the center of gravity. When moving the machine be careful to keep it balanced; do not allow it to topple over. 3. To set the machine on a solid concrete foundation, it’s advisable to apply a little grout to touch up any uneveness in the concrete in order to get a solid foundation at all points. 4. When setting machine on a floor or worktable that has any surface irregularities, shims should be used to correct this condition to the greatest extent possible. 5. There are 4 holes in the base for mounting the machine permanently to a smooth, solid, and level floor, worktable, or optional stand (#42977). CLEANING AND LUBRICATION 1. Thoroughly clean the machine with a commercial degreaser. Do not use gasoline, kerosene or other flammable liquids. Avoid getting solvent on rubber parts, or into the electrical controls or motor. 2. After cleaning, coat all bright metal with a light lubricant to prevent corrosion. 3. Lubricate all gears and moving parts with a medium consistency machine oil. LEVELING THIS MACHINE 1. Before operation, it is critical to level the work table both lengthwise and crosswise, using a precision level. It will not be possible to maintain accuracy of machined parts if the mill is not properly leveled. Figure 1. Shown with optional stand. P/N #42977 Page 6 SKU # 42976 EXTENSION CORDS Note: Performance of this tool may vary depending on variations in local line voltage. Extension cord usage may also affect tool performance. Your tool has a three-prong plug, therefore you must use a three-prong extension cord. Only use rounded jacket extension cords listed by the Underwriters Laboratories (UL). Improper use of extension cords may cause inefficient operation of your tool which can result in overheating. Be sure your extension cord is rated to allow sufficient current flow to the motor. If you are using the tool outdoors, use an extension cord rated for outdoor use (signified by “WA” on the jacket). The extension cord must have a minimum wire size depending on the amperage of the tool and the length of the extension cord. This size is determined by its AWG (American Wire Gauge) rating. The smaller the gauge, the greater the cable’s capacity. The amount of cords used does not matter: Total length determines the minimum AWG rating. Every cord must meet the AWG rating. Use the chart below to determine what AWG rating is required for your situation. Cord length is rated in feet. Harbor Freight Tools can supply UL listed and outdoor rated cords in most AWG ratings as needed. CORD LENGTH AWG RATING CHART 25’ 50’ 75’ 100’ 125’ 150’ 175’ 200’ AMPS AWG AWG AWG AWG AWG AWG AWG AWG 0-10.0 18 18 16 16 14 14 12 12 10.1-13.0 16 16 14 14 14 12 12 12 13.1-15 14 14 12 12 12 12 12 —15- 18 14 12 12 12 12 12 —— GROUNDAGE/VOLTAGE WARNING Common household current is 110-120 volts. As long as the outlet used with the Power ...