English to Russian Tech/Engineering Petroleum Eng/Sci

With the proper dies installed in the tong and backup, and test mandrel locked in the backup, operate tong DCV through several cycles of locking and releasing.

Operate Rotational DCV to apply torque to test mandrel up to value required for tubulars to be made up or broken out. While maintaining pressure on motor visually inspect hoses, stainless steel lines, fittings, etc., for seepage of hydraulic fluid. Repair or replace parts causing leaks.

tong - трубный ключь