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Hydraulic Brake System Fundamentals

270103k. Parts Technician. Hydraulic Brake System Fundamentals. Material Identification and Calculations. First Period. Figure 1 - Maximum stopping distances allowed under the conditions indicated. Figure 2 - Braking levels. Figure 3 - Energy conversion during braking.

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Hydraulic Brake System Fundamentals

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  1. 270103k Parts Technician Hydraulic Brake System Fundamentals Material Identification and Calculations First Period

  2. Figure 1 - Maximum stopping distances allowed under the conditions indicated.

  3. Figure 2 - Braking levels.

  4. Figure 3 - Energy conversion during braking.

  5. Figure 4 - Stopping power. (Courtesy Allied Signal)

  6. Figure 5 - Effect of weight on stopping power requirements. (Courtesy Allied Signal)

  7. Figure 6 - Effect of speed on stopping power requirements. (Courtesy Allied Signal)

  8. Figure 7 - Effect of speed and weight on stopping power requirements. (Courtesy Allied Signal)

  9. Figure 8 - Conduction and radiation.

  10. Figure 9 - Natural convection.

  11. Figure 10 - Forced convection.

  12. Figure 11 - Air scoop.

  13. Figure 12 - Forms of heat transfer.

  14. Figure 13 - Braking system.

  15. Figure 14 - Pascal’s Law.

  16. Figure 15 - Pascal’s Law helpful hints (Tradesperson’s Triangle).

  17. Figure 16 - Hydraulics used to multiply force.

  18. Figure 17 - Increased system pressure and output force due to decrease in the input piston size.

  19. Figure 18 - The total output force from the five small pistons is the same as the force from the single large piston.

  20. Figure 19 - Hydraulic lines and flexible hoses.

  21. Figure 20 - Hydraulic brake system.

  22. Table 1 - Composition and wet and dry boiling points of brake fluids.

  23. Figure 21 - Brake fluid.

  24. Figure 22 - Moisture contamination graphs for DOT 4 brake fluid.

  25. Figure 23 - Complete brake system components.

  26. Figure 24 - Pressure differential valve.

  27. Figure 25 - A metering valve.

  28. Figure 26 - The location of the proportioning valve.

  29. Figure 27 - A combination valve showing the three separate sections making up the one valve block.

  30. Figure 28 - Tandem reservoir master cylinder.(Reproduced with permission of Ford Motor Co.)

  31. Figure 29 - Master cylinder body and reservoirs cast as one piece (left)and a master cylinder with a removable plastic body (right).

  32. Figure 30 - Exploded view of a master cylinder.(Courtesy General Motors of Canada Limited)

  33. Figure 31 - Mechanical linkage of a master cylinder mounted on the bulkhead/firewall. (Courtesy Motor Information Systems)

  34. Figure 32 - Front/rear split brake system typical of RWD and 4WD vehicles.

  35. Figure 33 - A diagonally split brake system.

  36. Figure 34 - Different size brake reservoirs. (Courtesy Motor Information Systems)

  37. Figure 35 - Master cylinder brake fluid switch.(Courtesy General Motors of Canada Limited)

  38. Figure 36 - A double-lap flare (SAE) and an ISO flare.

  39. Figure 37 - Fluid in the hydraulic system at rest.

  40. Figure 38 - Brake system (light application).

  41. Figure 39 - Brake system operation (medium application).

  42. Figure 40 - Brake system operation (heavy application).

  43. Table 2 - Common replacement components and related sales.

  44. Figure 41 - Master cylinder kit and complete master cylinder.

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