A threaded-rod-driven, mechanically-actuated, portable truss press for repairing truss joints has a c-clamp body with a yoke, and upper and lower arms. A drive rod travel housing with an internally-threaded opening is attached to the upper arm of the c-clamp body. A threaded drive rod with a drive nut attached to the upper end transverses the travel housing. An upper platen is attached to the lower end of the drive rod. A lower platen is attached to the lower arm of the c-clamp body. The drive rod is mechanically actuated using either a pneumatic, electric, or battery-powered impact wrench with a properly-sized socket attached. When the drive rod is actuated in a clock-wise direction the upper platen moves towards the lower platen with sufficient force to compress the teeth of metal connector plates into the wooden members of a truss joint placed between the platens.

 
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