First, check whether the machine is damaged and whether the base is stable.
Confirm the power supply: single-phase or three-phase, 110V, 220V, or 380V.
Before starting the machine, ensure no objects are placed on top of the pulley. Add 2-3 drops of oil at location C1 before operation. Before installing the collet, clean off the grease on the spindle, install the collet, and secure it by tapping upwards 6 times with a plastic hammer.
Before tapping, tighten the tap with the collet wrench, then remove and store the wrench. Attach the long handle wrench to the hole on the right silver linkage rod and tighten the nut. On the right side of the disc base, there is a black wrench; lock it in reverse to adjust the height of the disc base.
After starting, confirm the spindle rotation direction (see Figure A). For right-hand threads, the spindle rotates counterclockwise and cuts clockwise upon contact with the workpiece. For left-hand threads, the spindle rotates clockwise and cuts counterclockwise upon contact.
(1) Single-phase 110V/200V: The machine is set for right-hand tapping. To tap left-hand threads, swap wires 5 and 6 under the motor.
(2) Three-phase 220V/380V: Plug in the power switch. After starting, check spindle rotation. If it is opposite to the required tapping direction, swap any two of the three power wires at the switch.
When tapping, align with the screw hole. The distance between the tap and workpiece should be within 5 mm. If too far, the tap cannot auto-reverse. Press down the long handle wrench for tapping. Release it gently after tapping; the machine will automatically reverse to remove the tap.
Tapping Depth Adjustment:
(1) Figure C2 adjusts the pull-back speed. If reverse is too slow, turn the screw 2-3 times to the right to increase force.
(2) Figure C3 adjusts tapping depth.
Belt Adjustment: Belts on new machines are pre-adjusted; do not over-adjust.
(1) Figure B: Clutch and motor belts should not be too tight; adjust to prevent idle spinning, slipping, or falling off.
(2) Figure D: At the back of the machine head is a long screw to adjust clutch belt tension. Loosen the small screws on both sides first, adjust the screw in Figure D, then re-tighten the small screws.
