01a machine shop safety

1. Safety in the
Machine Shop
Modern Metal working by John R walker
Chapter 4 (Safety practices)

2. Class Rules
 Attendance at the start of the class- any body
missing will be marked absent
 Be attentive and never hesitate to ask any
question
 Quiz at the end of almost every theory class

3. Learning Objectives
 Recognize safe and unsafe work practices in
a shop
 Identify and correct hazards in the shop area
 Perform your job in a manner that is safe for you
and other workers

4. Industrial Safety Awareness 4

5. Industrial Safety Awareness 5
Safety on the Job
 A safe worker should
 Be neat, tidy and dress up correctly for job being
performed
 Develop responsibility for personal safety and
safety of fellow workers
 Think and work safely at all times

6. Industrial Safety Awareness 6
Safety in the Shop
 Divided into two broad categories
 Practices that will prevent injury to workers
 Practices that will prevent damage to machines and
equipment
 Areas to be considered for above
 Personal grooming (Dress etc)
 Proper housekeeping
 Safe work practices
 Fire prevention

7. 7
Personal Grooming When
Working in Machine Shop
 Always wear approved
eye protection
 Plain safety glasses with
side shields
 Plastic safety goggles
 Face shields

8. 8
 Never wear loose clothing
 Wear short sleeves, close buttons of long sleeves or
rolled them up
 Always wear shop apron
 Remove or tuck in all neckties
 Always tie shop apron in the back
 Remove wrist watches, ear-rings, nose-rings,
and bracelets
Personal Grooming When
Working in Machine Shop

9. 9
 Never wear gloves around rotating
spindles
 Long hair must be protected by hair net
or cap
 No canvas or open-toes sandals
Personal Grooming When
Working in Machine Shop

10. 10
Personal Grooming
Wear head gear if necessary Tie long hair back
Remove jewellery
Wear ear protection if necessary
Wear safety glasses
Never wear loose clothing
No open toe shoes

11. 11
Housekeeping
 Stop machine before
cleaning it
 Keep machine and hand
tools clean
 Use brush and not cloth to
remove chips
 Use cloth to clean oily
surfaces
 Do not place tools and
materials on machine table

12.  Keep floor free from oil and
grease
 Sweep up metal chips on floor
frequently
 Never place tools or materials
on floor close to machine
 Return bar stock to storage
rack after cutting
 Never use compressed air to
remove chips from machine 12
Housekeeping

13. 13
Safe Work Practices
 Do NOT operate any machine before
understanding its operation
 Before operating a machine, check that
safety devices are in place and working
 Disconnect power and lock it off at switch
box when making repairs to machine

14. 14
 Make certain that cutting tool and work
piece are properly mounted
 Keep hands away from moving parts
 Always stop machine before measuring,
cleaning, or making any adjustments
Safe Work Practices

15. 15
 Never use rag near moving parts
 Never have more than one person operate
machine at same time
 Get first aid immediately for any injury
 Remove all burrs and sharp edges with file
before handling any work piece
Safe Work Practices

16. 16
 Do not lift heavy or difficult to handle objects
by yourself
 Use safe lifting practices
 Assume squatting position (knees bent,
back straight)
 Grasp work piece firmly
 Lift object by straightening legs (back
straight)
Safe Work Practices

17. 17
 Be sure work is clamped securely to table
 Never start machine until you are sure that
cutting tool and machine parts will clear work
piece
 Use proper wrench for job
 Safer to pull on wrench than push it
Safe Work Practices

18. 18
Fire Prevention
 Always dispose of
oily rags in proper
metal containers
 Know location and
operation of every
fire extinguisher

19. 19
Fire Prevention
 Know location of nearest fire exit from building
 Know location of nearest fire-alarm box and its
operating procedure
 When using a welding or cutting torch, be sure
to direct sparks away from combustible material

20. Summary
 Wear proper dress and protective gear
 Do not play with machines
 Keep safety always in your mind
 Read safety instructions and notices before work

21. Assignment
 Reading Assignment (Chapter 4)
 Workshop survey for unsafe
 Equipment
 Acts and practices
 Potential hazards
 Submission on 13-4-2015

22. Questions