Fluid circuit for remote consumer unit

A fluid circuit for a work machine such as a backhoe comprises a load sensing displacement controller 52 operating a variable displacement pump 51 which supplies first and second circuits 61, 63, each having respective proportional or discreet direction control valves 62, 70 and cylinders 32, 26 for e.g. raising and lowering front and rear working arms. The control valves are operated by actuators 80, 82 and 84, 86 under control of respective operating arrangements 110, 112 and receive pilot pressure at less than system pressure via a pilot valve 92, accumulator 100 and a solenoid controlled shut off valve 96 under supervision of another operating arrangement 106. A third e.g. steering circuit 134 is also supplied by the pump, as is an auxiliary circuit via a selection valve through which fluid may selectively flow through connectors 36, 38 to a remote consumer 44 e.g. a manually operated power tool. When the selector valve is open its controller 143 commands that the shut off valve 96 to immobilise the first and second circuits for safety.