​Workshop Technology & Practice



​Book description

This book is designed to help students acquire requisite knowledge and skills in basic workshop technologies & practices, workshop management, organization and handling of tools and machines in preparations to meet the demands of the manufacturing and processing sector of our economy. The author believed that reading through this book, users will be able to appreciate the work environment and the influences it has on the workers’ safety and as well have gained enough experience that will guide you in safe tool handling and machine operation which guarantees effective job delivery without incidences of hazards, injury or accident.

​Table of content

Acknowledgement vi

Abbreviations  viii

CHAPTER 1       How Safe is YOUR FARM?  14   ​​N399.00  ($1)

1.0     Introduction  14

1.1     Agriculture: a hazardous occupation?  14

1.2     Agriculture and mechanization  15

1.3     Essentials of worker’s safety  17

1.4     Occupational safety and health act (OSHA) 18

1.5     Osha’s approach to hazards identification  19

1.6     Nigeria safety policy  20

CHAPTER 2     AGRICULTURAL MACHINERY HAZARDS   22   ​​N399.00  ($1)

2.       Introduction  22

2.1     Causes of machinery hazards  23

2.2     Safety checks in handling agricultural machinery  28

2.3     Responsibility for machinery safety  29

2.4     Consequences of human error in accident situation  30

2.5     Farm risks/hazards classification  31

2.6     Hierarchy of hazard controls  32

2.7     Elements of machinery hazard (hazard points) 33

2.8     Sources of machine hazards  35

2.8.1  Hazards from mechanical motion in machine  35

2.8.2  Hazard form action points in machine  37

2.8.3  Hazards from electricity and safety  49

2.7     Safe machine operation (SMO) 52

2.8     Machine safety assessment 53

2.9     Related hazards in agricultural machinery  54

CHAPTER 3     MACHINERY SAFETY GUARDS   57 ​   ​​N399.00  ($1)

3        Introduction  57

3.1     Why install machinery guards?  57

3.2     Safety guards and devices  58

3.3     Types of guards and devices  60

3.4     Parts of machinery to be guarded  65

CHAPTER 4       SAFETY SIGNS & SYMBOLS   78   ​​N399.00  ($1)

4         Introduction  78

4.1     Communicating safety in machinery operation  79

4.2     Decals, stickers and labels  79

4.3     Preoperational instructions/manuals  86

4.4     Signal communications in machinery operations  87

4.5     Symbols used in safe machinery operation  98

CHAPTER 5     MACHINERY ENTANGLEMENT  104   ​​N399.00  ($1)

5.       Introduction  104

5.1     Sources of machinery entanglement 104

5.2     Points of attachment entanglements  105

5.3     Self propelled machine entanglements  114

5.4     Drive-line shaft entanglements  116

5.5     Prevention against entanglements  118

CHAPTER 6     HAZARDS IN POWER TRANSMISSION SYSTEMS   124       ​​N399.00  ($1)

6        Introduction  124

6.1     Mechanical transmission drive hazards  124

6.2     Hydraulic and pneumatic drive hazards  129

6.3     Tractor drive shafts hazards  133

6.4     Hazardous energy sources  142

CHAPTER 7      SAFETY IN MACHINERY TRANSPORT  146   ​​N399.00  ($1)

7        Introduction  146

7.1     Machinery transport on public roads  146

7.2     Causes of machinery accidents on public roads  147

7.3     Hazards and safety on rural/farm roads  152

7.4     Safety on Nigeria roads  157

7.5     Causes of road accident on Nigeria roads  158

7.6     Measures of safety on Nigeria roads  159

7.7     Preventing machinery accidents on Nigeria roads  162

CHAPTER 8        HORTICULTURAL MACHINERY AND SAFE-USE   165   ​​N399.00  ($1)

8        Introduction  165

8.1     Management of horticultural machinery  165

8.2     Horticultural tools and safe uses  166

8.3     Types of tools and tool selection  167

8.4     Hand tools and safe use  169

8.5     Horticultural machinery and safe use  170

8.6     Tree felling with chainsaw and safety  179

8.7     Loggers protective wears  188

8.8     Machinery, tools and equipment safety  189

CHAPTER 9     SAFEGUARDING MACHINERY NOISE   191   ​​N399.00  ($1)

9        Introduction  191

9.1     Measuring noise  191

9.2     Effects of exposure to noise levels and safety  192

9.3     Ear damage and hearing loss  193

9.4     Noise action and limit values in machinery  194

9.5     Noise in agricultural tractors and safe use  194

9.6     Agricultural machinery noise and safety  195

9.7     Selection and use of ear protection devices  197

9.8     Reducing machinery noise levels  198

CHAPTER 10      TYPICAL MACHINERY FATALITIES   202   ​​N399.00  ($1)

10      Introduction  202

10.1   Case studies of agricultural fatalities  202

10.2   PTO entanglements and prevention  208

10.3   Transmission fluid fatality  213

10.4   Electrical burns  214

REVISION EXERCISE   216

BIBLIOGRAPHY  219

GLOSSARY  226

INDEX   230


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