Power tong with door jammer valve

A power tong, comprising:

• a ring gear and cage assembly having a throat, the ring gear and cage assembly being driven by a motor having a hydraulic supply;
• a door mounted on a pivot on the ring gear and cage assembly for movement to open and close the throat;
• a cable secured to the door at a point that is offset from the pivot, the cable extending through a sleeve to a valve end of the cable;
• a valve at the valve end of the cable, the valve having a valve housing and being operable by movement of a valve control to disengage the hydraulic supply from the motor;
• the valve end of the cable being connected to the valve control;
• and
• the sleeve being connected to the valve housing.