Equipment identification:
Standard Lathe
Date :
For Occupational Health And Safety
A
1
SELF-ASSESSMENT FORM
B
2
3
5 C
F
E
Standard Lathe Parts D
1 Mandrel (Chuck)
2 Tool-Holder
3 Tailstock Centre
4 Frame
5 Lead Screw Safety Devices
A Mandrel (Chuck) Guard
B Moveable Transparent Guard
C Screen
D Emergency Stop Bar
E Disengaging Wheel
F Emergency Stop Button
Association paritaire pour la santé
et la sécurité du travail Industrial Accident Prevention Association
Institut de recherche Robert-Sauvé
Secteur fabrication de produits en santé et en sécurité du travail 1-800-406-IAPA (4272)
en métal et de produits électriques www.irsst.qc.ca www.iapa.ca
www.aspme.org
LEGEND
Preventative Measures Priority Codes for applying risk measures:
왘 Procedural Measures A. Immediate stoppage and resolution
쎲 Orders/instructions B. Resolution as soon as possible
C. Resolution according to normal company procedures
The suggested preventative measures are based in part from the Workplace Health And Safety Regulations (RSST, S-2.1, r.19.01),
from An Act Respecting Occupational Health and Safety (Québec LSST, S-2.1), ), as well as Industrial Mechanics, Module 9 —
Machining And Machine Tools, edited by CEMEQ, 1996 and INRS Safety Data Sheet; Lathes, 1998.
Priority
Mechanical Hazards Designated Person
Schedule
Most likely injuries: Cuts, amputations, fractures, foreign bodies, crushing, etc.
Preventative measures Applicable ■
✔ Not applicable ■
N/A Notes Desig. Sched. Prior.
Risk Factor: Contact With The Mandrel (Chuck) Or The Rotating Workpiece
in front of■
왘Install a moveable transparent guard Applicable ✔the cutting area. ■
Not applicable N/A
왘Install a moveable transparent guard in front of the mandrel ■
(chuck.)
왘Install a nozzle to regulate the flow of cutting fluid, and place ■
it so as to allow adjustment without having to approach the
mandrel (chuck) or the rotating workpiece.
쎲Wait until the mandrel (chuck) has come to a complete stop ■
before carrying out any work in the area of the mandrel
(chuck) or workpiece, such as removing or adjusting the
workpiece, taking measurements, removing shavings, etc.
쎲To remove shavings, use a smooth, long-handled brush with ■
no rings, straps or hooks.
쎲Never approach a rotating mandrel (chuck) or workpiece ■
while wearing gloves or holding a rag.
쎲Do not wear loose-fitting clothes. ■
쎲Do not wear any jewellery. ■
쎲Tie up long hair and secure under a cap. ■
쎲Never allow the mandrel (chuck) to rotate unattended. ■
쎲Use mill files and emery cloths as little as possible to ■
deburr or finish a piece.
쎲Never use any other tool than a mill file to deburr a ■
workpiece.
쎲Check the file handle before starting to deburr or finish ■
a piece.
쎲Angle the file handle towards your body and hold it with ■
your left hand. Hold the other end with your right hand.
왘Install an emergency stop mechanism (pedal, button, ■
bar or cable) coupled to a braking system to halt the
mandrel (chuck) and workpiece rotation.
왘Install a braking device (mechanical, electrical, etc.) to ■
quickly stop the mandrel (chuck) and workpiece rotation.
Notes:
Mechanical Hazards (continued)
Most likely injuries: Cuts, amputations, fractures, foreign bodies, crushing, etc.
Preventative measures Applicable ■
✔ Not applicable ■
N/A Notes Desig. Sched. Prior.
Risk Factor: Accidental Start-Up Of The Lathe During Maintenance And Repairs
쎲Apply lock-out procedures: ■
- disconnect all sources of energy
- dissipate (purge) all residual energies (e.g. electrical system
condensers or oil pressure in the hydraulic system)
- lockout all sources of energy
- validate to ensure start-up is no longer possible and that
all power has been dissipated (purged).
Risk Factor: Contact With Drive Mechanisms
왘Install fixed guards to limit access to pulleys, belts, ■
gears, etc.
Risk Factor: Contact With The Sharp Edges Of A Stopped Workpiece, With Shavings Or With The Cutter
쎲Mount the workpiece as far as possible from the cutting tool. ■
쎲Coat the cutting edges of a cutting tool to protect from harm ■
during handling
쎲Handle only with a rag or cut-resistant gloves and, only once ■
the workpiece has come to a complete stop.
쎲Tighten clamps by pulling towards you, not away. ■
쎲Immediately put away any unused tools. ■
쎲Remove shavings with a brush. ■
Risk Factor: Falling Material
왘Securely anchor the lathe frame to the floor. ■
쎲Remove any object likely to fall from the frame. ■
왘Supply mechanical handling devices (hoist, dolly with ■
lift table, etc.) suitable to the weight and dimensions of the
workpiece, tools and attachments.
쎲Wear CSA-approved safety footwear with steel-capped toes. ■
Risk Factor: Fall, Slipping
왘Install a moveable transparent guard in front of the cutting ■
area to stop shavings from flying and cutting fluid from
splattering.
왘Install a protective screen behind the lathe to stop any ■
flying shavings or spattering cutting fluid from reaching
the floor.
쎲Reduce fluid output and pressure to a minimum. ■
쎲Orient the stream of fluid so as to minimize splash. ■
왘Repair and clean floor: uneven surfaces, holes, slippery ■
floor, presence of shavings, etc.
왘Supply floor mats with rising edges. ■
Mechanical Hazards (continued)
Most likely injuries: Cuts, amputations, fractures, foreign bodies, crushing, etc.
Preventative measures Applicable ■
✔ Not applicable ■
N/A Notes Desig. Sched. Prior.
Risk Factor: Flying Material ( Key, Tool Fragments, Workpiece, Shavings, Cuttings etc.)
왘Install a moveable transparent guard in front of the ■
cutting area.
왘Install a protective screen behind the lathe. ■
왘Orient the lathe so as to reduce the likelihood of scattered ■
material reaching adjacent workstations.
쎲Register the cutter to the workpiece only once the lathe ■
is turning.
쎲Stop the lathe if an unusual vibration is felt or noise heard. ■
쎲Wear CSA-approved safety glasses with lateral protection. ■
쎲When needed, wear a CSA-approved face shield on top of ■
safety glasses.
Risk Factor: Flying Key
왘Supply a spring-loaded mandrel (chuck) key to secure the ■
mandrel (chuck).
쎲Ensure the key is not still on the mandrel (chuck) before ■
starting the lathe.
Risk Factor: Flying Fragments In Case of Cutting Tool Breakage
쎲Check that the tool’s cutting edges are sharp. ■
쎲Properly secure the cutting tool and tool-holder before machining. ■
쎲Stop the rapid advancement of the tool at a sufficient distance ■
from the workpiece.
Risk Factor: Protection Due To An Unsecured Workpiece
쎲Ensure that the workpiece is securely held in the mandrel ■
(chuck).
Risk Factor: Flying Fragments Following Improper Cutting Parameters
쎲Refer to cutter manufacturer specifications or other ■
technical data in order to select a good combination of
cutting parameters (feed speed, cut depth, cutting speed,
lubrication) according to the material being cut, type
assembly being cut and cutter selection.
Risk Factor: Projection and Movement of Chips/Waste Stock
쎲Select proper cutting parameters to avoid creating long curls. ■
쎲Use tools with chip breakers. Alternatively, use a ■
back-and-forth technique during machining.
쎲Remove long curls with a pair of pliers and only once the ■
mandrel (chuck) has come to a complete stop.
쎲Remove shavings by blowing with compressed air at a ■
pressure less than 200 kPa (30 psi).
쎲Never remove shavings by blowing with your mouth. ■
Ergonomic Hazards
Most likely injuries: Musculo-skeletal disorders, backaches.
Preventative measures Applicable ■
✔ Not applicable ■
N/A Notes Desig. Sched. Prior.
Risk Factor: Handling Of Heavy Objects
왘Supply mechanical handling devices (hoist, dolly with ■
lift table, etc.) suitable to the weight and dimensions of the
workpiece, tools and attachments.
쎲Ask for help from another worker when help is needed. ■
Risk Factor: Straining Working Positions
왘Install a transparent guard, which doesn’t mask the area ■
being machined.
왘Install sufficient lighting to illuminate the machining area so ■
as to eliminate the need to bend neck and back.
Risk Factor: Static Standing Work
왘Supply an anti fatigue mat. ■
Heat-Related Hazards
Most likely injuries: Burns.
Preventative measures Applicable ■
✔ Not applicable ■
N/A Notes Desig. Sched. Prior.
Risk Factor: Contact With Shavings, Cutting Tools And Hot Workpieces
왘Install a moveable transparent guard in front of the ■
cutting area.
왘Install a screen behind the lathe to avoid the flying ■
of shavings.
쎲Remove shavings with a brush. ■
쎲Wear snug-fitting long-sleeve tops. ■
쎲Handle hot workpieces and cutting tools with gloves or a rag. ■
Risk Factor: Fire
쎲Dispose oil-soaked rags in a metal container. ■
Physical Hazards
Most likely injury: Hearing loss.
Preventative measures Appliquée ■
✔ Non applicable ■
N/A Notes Desig. Sched. Prior.
Risk Factor: Noisy Workplace Environment
쎲Identify the sources of noise and implement measures ■
to reduce noise at the source, whenever possible.
쎲Wear earplugs or earmuffs. ■
Chemical and Biological Hazards
Most likely injuries: Dermatitis, intoxication, infection, etc.
Preventative measures Applicable ■
✔ Not applicable ■
N/A Notes Desig. Sched. Prior.
Risk Factor: Inhalation Or Skin Contact Of Contaminants From Cutting Fluids Or The Workpiece
쎲Consult the MSDS for the workpiece material to determine ■
if there are any hazardous substances (e.g., beryllium,
cobalt, manganese, lead, etc.).
쎲Dry-cut whenever possible. ■
쎲Consult the MSDS for the cutting fluid. ■
왘Select cutting fluids that do not contain any amines-class ■
chemical substances and that are the least harmful to
your health.
왘Confine the machining area and install an airborne particle ■
recovery system (dust and other air-borne particles).
쎲Periodically change the cutting fluid and clean all conduits ■
to limit bacterial contamination.
쎲During handling, wear gloves that are resistant to the ■
cutting fluid used.
쎲Apply the following personal hygiene precautions: ■
- frequently wash hands and forearms with soap and water
- promptly report, treat and cover and wounds
- regularly change clothing impregnated with cutting fluid.
Electrical Hazards
Most likely injuries: Electrocution
Preventative measures Applicable ■
✔ Not applicable ■
N/A Notes Desig. Sched. Prior.
Risk Factor: Contact With Parts Normally Or Accidentally Energized
왘Install an isolating switch near the lathe, with clear markings. ■
쎲Apply lock-out procedures: ■
- disconnect all sources of energy
- dissipate (purge) all residual energies
(e.g. electrical system condensers)
- lock-out all sources of energy
- validate to ensure start-up is no longer possible and
that all power has been dissipated (purged).
쎲Check the supply cord insulation and the lathe ■
grounding circuit.
This Self-Diagnosis form was developed following a
research project in workplace health and safety
Completed by: from IRSST, a workplace health and safety research
institute named (Institut de recherche Robert-Sauvé
en santé et en sécurité du travail).
