Machine Guarding.ppt safety training machine

Machine guarding

1. MACHINE GUARDING POLICY
AND PRACTICES
- Training Program -

2. PURPOSE OF POLICY
- Protect employees, contractors and visitors from
any machine related hazards such as:
* Point of Operation
* Rotating parts
* Flying chips
* Sparks
- Comply with related regulatory standards (OSHA)

3. Where Mechanical Hazards Occur
- The point of operation, or point where work is
performed on the material:
* Cutting, shaping, boring, forming
- Power transmission apparatus, or components
of mechanical system that transfer energy:
* Flywheels, cams, clutches, cranks
- Other moving parts, or parts that move while unit
is working: Feed mechanisms, auxiliary parts
-

4. Hazardous Mechanical Motions & Actions
- Rotating Motions
Smooth & rotating shafts, collars, flywheels, shaft ends,
spindles, couplings.
- In Running Nip Points
* Parts rotating in opposite directions or in close contact
* Rotating & tangentially moving parts (i.e. belt & pulley)
* Rotating & fixed parts, creating a shearing or crushing
action (i.e. spoked handwheels)

5. Hazard Motions & Actions (continued)
- Recipricating Motions
Back/Forth or Up/Down motions.
- Transverse Motion
Straight and continuous line.
- Cutting Motion
Involves machines with rotating, recipricating or transverse
motion (i.e. bandsaws, circular saws, lathes, milling devices).

6. Hazard Motions & Actions (continued)
- Punching Action
Danger where power applied to slide/ram for stamping or
drawing metal or other materials (i.e. power presses).
- Shearing Action
Power to slide or knife to trim or shear metal, wood, plastic,
etc. (i.e. mechanical, hydraulic or pneumatic shears).
- Bending Action
Similiar danger to punching action (i.e. power presses, press
brakes, tubing benders).

7. Guarding Requirements
All guarding must meet these minimum requirements:
- Prevent accidental contact.
- Should be secure, not easy to remove or alter.
- Protect from falling objects.
- Create no new hazards.
- Create no interference with the job involved.

8. Guarding Requirements (continued)
Procedures and policies to be in place to support efforts:
- Description and identification of hazards with certain
machines.
- How guards provide protection and hazards for which they
are intended.
- How to use guards and why.
- How & when guards can be removed and by whom.
- What to do if guard is found damaged, missing or does not
provide enough protection.

9. CLASSIFICATION OF GUARDS
Toro Riverside has chosen to group guarding into
four classes:

1) Fixed Enclosure guards
2) Interlocking guards
3) Automatic guards
4) Two-handed operating devices

10. GUARD DEFINITIONS
FIXED ENCLOSURE
- Primary guarding option.
- Prevents access by completely enclosing hazard.
- Can be constructed to be adjustable to various tools & dies.
However, once adjusted guard is to be fixed.
INTERLOCKING GUARD
- Utilize electrical or mechanical interlocking connection.
- Prevents operation until guard is in “closed” position.
- Can be opened to feed parts and adjusted as operation
requires.

11. GUARD DEFINITIONS CONTINUED
AUTOMATIC GUARD
- Used when enclosure or interlocking is inappropriate.
- Acts independently of operator, repeating cycle as long
as machine operates.
- Keeps body parts out of “danger zone” as it cycles.
- Example is a “sweep/push away” device or moving barrier.
TWO HANDED GUARD
- Activates the machine cycles, common to fixtures.
- Requires simultaneous use of both hands to activate device.
- Uses electrical switch buttons, air logic, computer logic, etc.
- Must be designed to prevent controls being “tied-down”.

12. Equipment Examples at Riverside
- Molding Machines
- Assembly Fixtures
- Automated Assembly Equipment
- Grinders
- Lathes
- Drills (Portable & Stationary)
- Saws (Circular, Radial, Table)
- Grinding Wheels
- Sanders
- Welding Torches
- Soldering Guns

13. Personal Protective Equipment (PPE)
Engineering controls are the FIRST choice for eliminating any
machine hazards. However, where they are not available or
can’t fully protect, personal protective equipment is used :
- Safety glasses, goggles, face shields
- Hearing Protection
- Hardhats, hairnets, caps
- Gloves, arm sleeves
- Coveralls, aprons, vests, body suits
- Toe covers, steel toed shoes

14. General Safety Rules
NEVER let overconfidence lead you to take unneeded risks.
Apply these simple rules with ANY machine or power tool:
- Keep work area well lit, dry and CLEAN
- Maintain tools properly at all times
- Use appropriate safety features (i.e. 3-prong plugs, safety
switches, double insulated tools)
- Use personal protective equipment when necessary
- Dress right. No loose clothing or jewelry worn
- Installation or repairs done by qualified staff ONLY!
- Use the right tool for the job
- Keep electric cables & cords clean, un-frayed
- MAKE SURE EQUIPMENT IS GROUNDED!!!

15. RESPONSIBILITIES
- Engineering/Tech Ops staff responsible to monitor
assembly guarding issues regarding:
- Existing equipment
- New equipment
- Maintenance Department monitors their dept’s
equipment and some others.
- Team Leader in area to work with Tech Staff to
assure guarding issues resolved prior to the
machinery released to production. Safety/Health
Manager to assist all parties in efforts.
- ALL OF US ARE RESPONSIBLE IN PREVENTION!!

16. WHAT CAN WE EACH DO TO
CONTRIBUTE?
- Follow the training procedures that you receive on use of
ANY piece of equipment. If unsure of any aspects of it’s
use, STOP and ask questions!!
- If you notice ANY problem, big or small, STOP and report
it to your Team Leader, Cell Leader or a Technician.
- DO NOT perform repairs on your own, get a Technician
involved to assess and correct the problem.

17. CONTRIBUTIONS CONTINUED. . .
- Recognize and celebrate each day’s accomplishments, no
matter what they are !!
- Look at not just how we do the tasks NOW, but how can
we do it better in the FUTURE.
- You each make a contribution to producing a quality
product and do so with SAFELY in mind.

18. - EACH DAY IS AN ACCOMPLISHMENT, AN
IMPORTANT PART OF THE OVERALL JOURNEY
TO SUCCESS . . . . .
- LEARN TO RECOGNIZE THOSE OPPORTUNITIES
AND CELEBRATE THEM !!
- ….. It’s as simple as saying, “Thank You”