Before starting up the machine, the cooling water pump shall be started up firstly. It is necessary to check that four spraying holes are not blocked.

The concentration of emulsified coolants is 20:1 or so. If the concentration is too low, it shall affect the precision of thread.

In order to protect the useful life and the quality of workpiece, it is necessary for workpiece above diameter of φ32 to be cut in two cutting (Don’t loosen the clamp)

“Fixing Cutter”: A group of four rotating cutters dividing in 1, 2, 3 and 4 is fixed with clockwise arrangement.

In order to ensure that the rotating cutters are arranged accurately in cutter carrier box with 1/4 equal space, there are not any cuttings in cutter carrier box and at the contact surfaces between both cutter carriers. The lubricating oil shall be filled in them. The cover should be capped firmly.

After rotating cutter is fixed in carriage saddle. The height in the same group should be equal to each other (height; 27±0.05mm). After cutter blade is worn, the shim shall be added in the bottom to readjust the height in order to ensure the cutting edge in the center of workpiece. The cutter should be fixed correctly in carriage saddle and the screws should be fastened firmly.

The rotating cutters shall be placed in order according to the original group with four sheets.

Operation Regulations

Operator must concentrate his energy, carry out the operation regulations and operate the normal operation of machine.

Operator must be familiar with the performance, structure and transmission system of machine. It is seriously prohibited to operate with extra load.

It is necessary to clear out the articles that affect working, to check protection device, electricity, box cover, etc.

Before working, it is necessary to make the preparation, to check that all components are good in order, all handles are flexible and the power supply of motor are switched on. Don’t operate until it is confirmed that all are ready for operation.