An important bit of accuracy in the diagram is that the brake lines between the left and right seat sit considerably higher that the reservoirs and all master cylinders. This means that if air gets into one or both systems it tends to sit in the line(s) between the left and right seats. In which case the copilot side can feel "spongy" while the pilot seat is fine. I have had this exact thing happen. In this case the copilot brakes would work, but I'd have to pump them to compress the air. I've developed the habit of occasionally checking the right seat brakes for this condition.
Red Fluid on the pedals
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Rich
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Re: Red Fluid on the pedals
2002 DA40-180: MT, PowerFlow, 530W/430W, KAP140, ext. baggage, 1090 ES out, 2646 MTOW, 40gal., Surefly, Flightstream 210, Orion 600 LED, XeVision, Aspen E5
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Davestation
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Re: Red Fluid on the pedals
Pilot is fine. You can check the copilot on occasion because if the fluid is low the copilot will feel it first, but that should be covered at the Annual inspection.