Hydraulics - Seafish

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VI Before you begin Each module will have a short introduction. You will be given a list of things you will need. For some modules, special equipment will be needed. We can supply most of this. This section will also tell you if you need any knowledge or experience before you begin. Check that you have everything you need. Objectives Modules are based on objectives which tell you what you will be able to do when you have finished. These are clearly stated. You should check that the module objectives match your own reasons for studying. You will be told when you have achieved each one of the objectives. In this way you can easily keep track of your own progress. S.A.Q/S This is short for self assessment questions. These questions are carefully designed to help you. They let you know how you are getting on. They help you to find out any problems that you may be having with the material and help you to put them right. Oorirt .fce tempted to skip thase questions* Don't look at the answers before y
VII S.A.Q/S are shown by a box with a question mark and the number of the question. Important information Other boxes are used to show different types of information. This box with the © in the top left corner contains important information. a Warnings This box with the warning sign gives information about possible dangers, health hazards, etc. Definitions A box with smaller print is used for definitions and extracts from documents. smaller print Other emphasis Shading like this Is used to pick out important sentences and paragraphs. Bold type is used to make important words or numbers stand out. <strong>Seafish</strong> Open Learning
Page 1 and 2: SEA FISH INDUSTRY AUTHORITY Hydraul
Page 3 and 4: Hydraulics in Fishing Vessels An Op
Page 5 and 6: SEGMENT FIVE - HYDRAULIC OILS AND F
Page 7: A Guide for Open Learners This will
Page 11 and 12: IX • Time spent just reading a mo
Page 13: XIII Objectives After completing th
Page 17 and 18: Working cylinder V 7 3 •< ► Loa
Page 19 and 20: Write down a list of the main compo
Page 21 and 22: In this type the rotor shaft is off
Page 23 and 24: 8 Pressure Control Valves Positive
Page 25 and 26: 10 Relief valves are either pre-set
Page 27 and 28: 12 (A) From Pump (P) i a(B) Raise H
Page 29 and 30: 14 Out Out Globe valve Figure 17. S
Page 31 and 32: 16 (?) SAQ25 Explain how a relief v
Page 33 and 34: 18 The cylinders shown in Figures 2
Page 35 and 36: 20 Figure. 31. Figure 32. Port A Po
Page 37: 22 Which types of pumps can be used
Page 41 and 42: 24 Hydraulic Pressure The pressure
Page 43 and 44: 26 In order to help you to compare
Page 45 and 46: 28 ® SAQ18 Using Figure 35 on page
Page 47: 30 ® SAQ29 When a hydraulic motor
Page 51 and 52: 32 Rotor Inlet External Gear Pump F
Page 53 and 54: 34 The vanes are pushed out by cent
Page 55 and 56: 36 Piston Pumps All piston pumps de
Page 57 and 58: 38 Drive shaft flange Piston Yoke c
Page 59 and 60:
40 Eccentric Oil outlet Figure 49.
Page 63 and 64:
43 Segment Four — Hydraulic Syste
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45 K4SS^^ LINES AND LINE FUNCTIONS
Page 67 and 68:
47 PUMP ONE-WAY VARIABLE OUTPUT PUM
Page 69 and 70:
49 • Pilot pressure means that oi
Page 71 and 72:
51 ® A reversible motor with a bra
Page 73 and 74:
53 (?) SAQ15 Using the information
Page 75 and 76:
55 First, identify each of the item
Page 77 and 78:
57 ® SAQ28 Using the diagram of Fi
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59 SUMMARY You have now completed S
Page 83 and 84:
62 PROPERTIES OF HYDRAULIC OILS The
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64 (2) SAQ20 How is the viscosity o
Page 87 and 88:
66 (?) SAQ26 Using Table 3 determin
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68 Additives in Hydraulic Oils Many
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70 CONTAMINATION Dirt and other for
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72 • Metal wear particles • Pac
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74 Full flow filters are all fitted
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77 Segment Six — Maintenance and
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79 Cleanliness has top priority.
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81 Do not 'grip' a hot pipe. Try a
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83 Faulty Seals Faulty Seals on pum
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85 Excessive Noise Table 4 Seafish
Page 109 and 110:
87 Incorrect Flow Table 6 Seafish O
Page 111 and 112:
89 Faulty Operation Table 8 Seafish
Page 113 and 114:
93 So you can see that there are ma
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95 Responses to the Self Assessment
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97 SAQ 6 Did you show the change in
Page 121 and 122:
99 SAQ9 The various properties whic
Page 123 and 124:
101 SAQ15 SAQ16 A linear actuator p
Page 125 and 126:
103 SAQ20 (a) Viscosity increases a
Page 127 and 128:
105 SAQ26 SAE 20W/30 oil will have
Page 129 and 130:
Other modules in this series which
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Hydraulics - Seafish

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