Method for utilizing a rod coupling tool for coupling and disassembling rods in a sucker rod string

A method of assembling a coupling tool for turning a threaded joint between a sucker rod and a coupling comprising:

• affixing a backup wrench to a base plate at a first regular orientation;
• suspending said base plate from a control platform;
• mounting said base plate to an inversion loop and inverting said base plate by inverting said inversion loop;
• pivotally mounting a hydraulic piston to said base plate at second angular orientation relative to said first angular orientation of said backup wrench;
• releasably engaging a friction wrench to said hydraulic piston at one end and to the coupling at the other end;
• engaging the sucker rod with said backup wrench;
• frictionally seizing the coupling with said friction wrench;
• and
• twisting the coupling relative to the sucker rod by activating said hydraulic piston to rotationally move said friction wrench relative to said backup wrench.