Jaw grip force adjustment system for offset and 90 degree pulling heads

A combination comprising:

• a pulling head having a frame having first and second ends and a jaw gripping assembly which is generally positioned within said frame;
• said first end of said frame being configured to receive a stem of a fastener therein;
• and
• an adjustment assembly which is configured to be connected to both said frame and said jaw gripping assembly, said adjustment assembly being configured to be manipulated in a first manner in order to move said jaw gripping assembly closer to said first end of said frame in order to minimize an amount of jaw grip force generated by said jaw gripping assembly, said adjustment assembly being configured to be manipulated in a second manner in order to move said jaw gripping assembly distal to said first end of said frame in order to maximize an amount of jaw grip force generated by said jaw gripping assembly.

A method of adjusting a jaw gripping force of a pulling head, said method comprising:

• a) providing a power tool having a piston and a head;
• b) providing a pulling head having a frame having first and second ends and a jaw gripping assembly which is generally positioned within said frame;
• said first end of said frame being configured to receive a stem of a fastener therein, said piston of said power tool being secured to a portion of said jaw gripping assembly of said pulling head;
• and
• c) providing an adjustment assembly having a locking nut, an adjustment nut, a jam nut and a frame adaptor, said locking nut being locked to said second end of said frame, said frame adaptor being partially positioned within, and being rotatable relative to, said locking nut, said adjustment nut being secured to a portion of said frame adaptor positioned outside of said locking nut, said jam nut being secured to said portion of said frame adaptor positioned outside of said locking nut and being locked against said head of said power tool;
• d) unlocking said jam nut away from said head of said power tool;
• e) unlocking said locking nut from said frame of said pulling head;
• and
• f) rotating said adjustment nut to a desired position which causes said jaw gripping assembly to move to a desired position within said frame.

A method of adjusting an angular position of a pulling head, said method comprising:

• a) providing a power tool having a piston and a head;
• b) providing a pulling head having a frame having first and second ends and a jaw gripping assembly which is generally positioned within said frame;
• said first end of said frame being configured to receive a stem of a fastener therein, said piston of said power tool being secured to a portion of said jaw gripping assembly of said pulling head;
• and
• c) providing an adjustment assembly having a locking nut, a jam nut and a frame adaptor, said locking nut being locked to said second end of said frame, said frame adaptor being partially positioned within, and being rotatable relative to, said locking nut, said jam nut being secured to said portion of said frame adaptor positioned outside of said locking nut and being locked against said head of said power tool;
• d) unlocking said locking nut from said frame of said pulling head;
• e) turning said pulling head to a desired angular position relative to said power tool;
• and
• f) locking said locking nut to said frame of said pulling head.