INDUSTRIAL TROUBLESHOOTING Chapter 6 SCHEMATICS AND DRAWINGS INMT

INDUSTRIAL TROUBLESHOOTING Chapter 6 SCHEMATICS AND DRAWINGS INMT 2345 - 01 Vern Wilson

READING DRAWINGS Schematics – PAGE 71 Single line drawing – shows sizes Piping Schematics Orthographic Isometric Valves - Globe , gate, plug and check Compressor schematics Hydraulic schematics

SCHEMATICS � Provides ◦ ◦ ◦ a mental picture Shows what the system does How each part works Where the part is How to get access to the system What may be normal cause of problem � Simple single line

ISOMETRIC AND ORTHOGRAPHIC � ISOMETRIC ◦ Isometric on 30° angle ◦ Gives a 3 D perspective ◦ Draw a box � ORTHOGRAPHIC ◦ Straight on views ◦ Views at 90° from each other ◦ Draw a toilet

VALVES � TYPES ◦ ◦ ◦ ◦ GLOBE GATE PLUG CHECK BALL BUTTERFLY NEEDLE DIAPHRAGM

COMPRESSORS & ENGINES � Schematic ◦ ◦ ◦ for each part of system Gasoline or diesel system Electrical system Hydraulic system Lubrication – page 75 Cooling

HYDRAULIC & PNEUMATIC � HYDRAULIC – uses liquid – page 76 � PNEUMATIC – uses a gas ◦ Reservoir, pump and relief valve, control valve ◦ Filter, compressor, receiver, relief valve, control vlv

ELECTRICAL � Today ◦ ◦ runs on electricity Toothbrush A/C Lights Auto systems � Starting circuits – page 81 � Plant diagrams ◦ Lighting systems

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