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Harbor Freight Tools 43378 manual

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Table of contents for the manual

  • Page 1

    16 SPEED FLOOR DRILL PRESS Model 43378 SET UP AND OPERA TING INSTRUCTIONS Diagrams within this manual may not be drawn proportionally . Due to continuing improvements, actual product may differ slightly from the product described herein. Distributed exclusively by Harbor Freight T ools ® . 3491 Mission Oaks Blvd., Camarillo, CA 9301 1 Visit our we[...]

  • Page 2

    Page 2 SKU 43378 Specications Motor 120 V AC, 60 Hz, 3/4 HP , 1750 RPM; 5.8 amps (with load) 16 Spindle Speeds 220, 300, 430, 480, 590, 650, 720, 850, 950, 1600, 1900, 2000, 2500, 2900, and 3600 RPM Spindle Stroke: 3-1/8 inches; T aper: MT2 Column 2-7/8 (diameter) inches Base Dimensions 10-1/8 x 17-1/2 inches; Slots: 5/8” Throat Depth 6-5/8 in[...]

  • Page 3

    Page 3 SKU 43378 do the work of a larger industrial tool. There are certain applications for which this tool was designed. Do not modify this tool and do not use this tool for a purpose for which it was not intended. 7. Dress properly . Do not wear loose clothing or jewelry as they can be caught in moving parts. Protective, electrically non-conduct[...]

  • Page 4

    Page 4 SKU 43378 19. Do not operate tool if under the inuence of alcohol or drugs . Read warning labels on prescriptions to determine if your judgment or reexes are impaired while taking drugs. If there is any doubt, do not operate the tool. 20. Use proper size and type extension cord . If an extension cord is required, it must be of the prop[...]

  • Page 5

    Page 5 SKU 43378 Drill Press Safety W arnings and Precautions 1. Secure the Drill Press Base (B6) to the oor using Bolts (not supplied). The oor must be level, smooth and capable of supporting the weight of the drill press and workpieces. 2. Locate the Drill Press in an area where you walk around it unhampered. 3. Avoid kickback and grabbing [...]

  • Page 6

    Page 6 SKU 43378 5. Never place hands and arms near the workpiece to avoid the possibility of the work piece coming loose and striking you. 6. Before drilling, turn on the motor and check for bit wobble or machine vibration. If this is found, correct the problem before drilling. 7. Set the proper spindle speed for the specic drilling operation. [...]

  • Page 7

    Page 7 SKU 43378 Assembly Assembly hardware is located in separate bags. Each bag contains the necessary parts for each assembly step. Remove all packing and protective material from the Drill Press com- ponents. 1. Position the Base (B6) on a level oor . It is recommended to bolt the Base to the oor using appropriate hardware (not supplied).[...]

  • Page 8

    Page 8 SKU 43378 8. Using two people, lift the Head Assembly up and onto the Column (B1). It should slide down on the Column T ube as far as it will go. Align it so that it faces straight forward, inline with the Base. 9. Screw in two Set Screws (21), into each side of the Head (1) and tighten with the Allen wrench. 10. Head Lock Set Screws (21) He[...]

  • Page 9

    Page 9 SKU 43378 - Push the Motor up until the top of the pulleys align. Hold Motor in place. - Using a wrench, tighten four Hex Nuts (14) supporting the Motor . - T urn the Belt T ension Lever (19) counterclockwise to release belt tension. 13. Install V -belts (A1). Refer to the photos on page 7. - T urn the Belt T ension Lever (19) and move the p[...]

  • Page 10

    Page 10 SKU 43378 Operation W arning: A void personal injuries. Before operating this machine, review all Safety W arnings and Precautions listed on pages 2 through 5. 1. Loosen the Arm Locking Handle (B16) and turn the T able Crank (B8) to adjust the T able height to accommodate the workpiece being drilled. 2. Open the Chuck and insert the drill b[...]

  • Page 11

    Page 1 1 SKU 43378 2. Mark the desired hole depth on the side of the workpiece. 3. Loosen the Depth Locking Screw Lock. 4. T urn the Feed Handle counterclockwise to bring the tip of the drill bit down, next to the hole depth mark. 5. T urn the Depth Stop Collar counterclockwise until it stops moving. 6. T ighten the Depth Locking Screw . 7. T urn t[...]

  • Page 12

    Page 12 SKU 43378 Maintenance W arning: Before performing any maintenance to this machine, remove the line cord from the electrical outlet. Removing the Chuck and Arbor During this procedure, refer to the Pulley and Spindle Assembly Drawing. 1. Adjust the Depth Stop Collar to hold the Chuck at a depth of three inches. 2. Align the key holes in the [...]

  • Page 13

    Page 13 SKU 43378 6. With the screwdriver still in place, loosen the (inner) Hex Nut (38) until the Quill Spring Cap notch disengages from the Spring Seat (42) -- about 1/8 inch. 7. Quill Spring Cap (39) Hex Nut (38) - Inner Hex Nut (38) - Outer Quill Spring Cap Notches T urn the screwdriver counterclockwise and engage the next Spring Cap notch. Le[...]

  • Page 14

    Page 14 SKU 43378 T roubleshooting SYMPTOM POSSIBLE CAUSE SOLUTION Drill bit burns or smokes - Incorrect spindle speed - Dull drill bit - Drilling too slowly - Lacking lubrication - Change spindle speed - Replace with new bit - Drill faster - Lubricate cutting area Makes unusual noise - Belt tension set wrong - Spindle dry - Loose spindle pulley - [...]

  • Page 15

    Page 15 SKU 43378 NOTE : Some parts are listed in these Part Lists are shown for illustration purposes only and are not available individually as replacement parts. Item # Description 1 Head w/pointer and trim 2 Cable Clamp 3 Pan Head Screw , M5x12 4 Hex Screw , M8x16 5 Adjusting Lever 6 Motor Support Bracket 7 Motor Support Bracket 8 Motor Mount 9[...]

  • Page 16

    Page 16 SKU 43378 Head Assembly Drawing 41 42[...]

  • Page 17

    Page 17 SKU 43378 Pulley and Spindle Assembly Parts List Item # Description A1 V Belt, M24 A2 Pulley Nut A3 Spindle Pulley A4 Pulley Insert A5 Ball Bearing A6 Spacer A7 Retaining Ring, 17 mm A8 Retaining Ring, 1 1 mm A9 Ball Bearing A10 Quill Gasket A1 1 Quill A12 Ball Bearing A13 Spindle Shaft A14 Arbor A15 Chuck A16 Chuck Key A17 Wedge Drift Key [...]

  • Page 18

    Page 18 SKU 43378 When ordering a part from this drawing, add an “A” prex to the part number . Pulley and Spindle Assembly Drawing Rev 07i[...]

  • Page 19

    Page 19 SKU 43378 Base and T able Assembly Parts List Item # Description B1 Column B2 Rack B3 Set Screw , Hex. Socket, M10x12 B4 Column Support B5 Hex Head Screw , M10x40 B6 Base B7 T able Support w/ Indicator B8 T able Crank B10 Gear Pin B1 1 Set Screw , Socket, M6x10 B12 Bevel T able Lock Screw B13 T able Clamp B14 Arm w/ Scale B15 T able B16 Arm[...]

  • Page 20

    Page 20 SKU 43378 When ordering a part from this drawing, add a “B” prex to the part number . Base and T able Assembly Drawing Rev 07i[...]