High pressure valves for jacking and rotation functions. Hydraulic pressure gauges for monitoring thrust, rotation and cutter bit system pressures. The quick couplers connect to the pressure, return, load sense, case drain hydraulic hoses from the GBM Power Pack, along with the PCH hydraulic hoses. Low pressure valves for hydraulic make-up tool, push plate brake and staging functions. Drive Swivel Adapter With Fluid Connector And Alignment Adapter Four cylinders provide up to 200 ton thrust capacity. Operator control center for ease of operating and monitoring of system pressures. 21 GBM_4812A,...