A lubrication system in a coal mining dragline, pumps 140 mL/s of oil with a density of 810 kg/m3 and viscosity of 0.01 kg/m.s, across the full height and length of the machine. Downstream of the storage tank and 5 m above the ground, at a point T in the three millimetre diameter pipeline, the pressure is 1.55 kPa. The lubricant flows downstream to the head of the boom at a point H, 36.5 m above the ground, where it passes through a gallery with a diameter of 0.02 metres. The total flow then moves to a point W on the traction drive two metres off the ground, and travels through a nine millimetre diameter conduit. Ignoring all friction and minor losses, determine the pressures at points H and W.