Yale Practices for Tool Safeguarding and Controls 1

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Robert Thornton
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1 Arbor Press Manual Caught between crushing, limited by manual operation Band Saw / Small Bench Cutting blade lacerations Rotating blade pulleys pinch points, entanglement for wood Band Saw / Large Cutting blade lacerations, amputation Rotating blade pulleys pinch points, entanglement Bead / Shot Blaster (w/ Glove box) Brake, Metal Bending Buffer, Wheel Bench Abrasive shot skin irritation, abrasion Rotating / moving parts blade in fan motor Manual Caught between finger crushing Rotating parts entanglement Parts pulled / thrown from hand flying objects Cutting Block Bench Manual Cutting blades lacerations, amputation Die Filer Vertical oscillating shaft minor punctures Possible flying objects eye, face, skin for wood Door interlocks for large units Blade Covered pulleys Blade plus extension if Fully encased band saw wheels Rotating shaft and nut guards as feasible Chip shield as feasible Push sticks Smallest opening in work surface possible for small parts Bit vise / clamp 1

2 Drill Grinder/Sharpener Rotating shaft and wheel pinch points, abrasions Drill Press / Small Bench Sharp cutting bit minor lacerations, punctures Rotating chuck and bit entanglement face, skin Torque exerted on work piece impact Drill Press / Large Sharp cutting bit minor lacerations, punctures Rotating chuck and bit entanglement face, skin Higher torque on work piece impact Foam Cutter Grinder (hard wheels) Hot wire burns, fire Smoke inhalation exposure Rotating shaft and wheel pinch points, abrasions Flying objects parts or wheel shatter eye, face, skin Heat / sparks burns, fire for wood for wood Key or code access Wheel Chip shield as feasible Covered pulley head Portable chuck / chip Rear shielding as Covered pulley head Affixed multiplane chuck/chip Rear shielding as Wheel enclosure Upper tongue Chip shield Rear shielding as Bit vise / clamp Vise secured Spring loaded chuck key Work / tool rest Vise secured Spring loaded chuck key Hearing protection for high pitch metal cutting Local exhaust Work / tool rest with gap tolerances Depth / feeler gauge Faceshield as 2

3 Jig and Scroll Saws Sharp cutting blade lacerations for wood Jointer Laser Cutter Sharp cutting heads serious lacerations, amputation Rotating (horiz.) parts entanglement Laser ocular injury, burns Heat burns, fire Moving laser head physical for wood Key or cord access Blade Cutter shield Push sticks and blocks Local exhaust Lathe Wood Lathe Metal Mini Bench Rotating parts serious entanglement face, skin Sharp cutting tools lacerations Rotating parts entanglement Sharp cutting tools lacerations Pinch points minor crushing, bruising Chuck Workpiece / point of operation Portable shield Tool rest point of operation shield not possible Lathe Metal Rotating parts serious entanglement face, skin Sharp cutting tools lacerations Emergency foot brake / power stop (geared by factory new equipment Fixed or portable chuck shield Cross slide shield Lead screw if Spring loaded chuck wrenches Protect collet release handle if exposed 3

4 Lathe Metal Heat burns required for student (cont d) shops) Metal Cutting Saw Horizontal Sharp cutting blade lacerations, amputation Rotating blade pulley entanglement, pinch point Milling Machine Sharp cutting bit minor lacerations, punctures Rotating chuck and bit entanglement face, skin Higher torque exerted on work piece impact Planer Press Manual Sharp cutting heads serious lacerations, Rotating (horiz.) parts entanglement Caught between crushing for wood exposed Bar feeder cover (if present) Rear shield as Blade guard, upper and lower Wheel / pulley guards Affixed multiplane chuck/chip Drive belt covers Rear / side shielding as Adjustable entry / feed Cutting head Portable shield or cage for potential shattering object Work piece vise / clamp Spring loaded chuck wrenches (if used) Vise secured Retractable handles on powered tables Push sticks Outfeed support Hearing protection for high noise planing 4

5 Printer, 3 D Moving head physical Ink aerosol inhalation exposure Key or code access Printing Press Punch Rotating parts, pulleys, wheels entanglement Caught between crushing Possible flying objects eye, face, skin Ink and cleaning solvents chemicals Manual Caught between crushing, bruising Possible flying objects eye, face, skin Radial Arm Saw Bench Sharp cutting blade serious lacerations and Rotating shaft / blade entanglement Robotics Devices (tabletop, instructional) Roller, Sheetmetal Manual Various moving parts physical Possible flying objects eye, face, skin Caught between / pinch points crushing, limited by manual operation Finger /constant pressure switch, E stop, accessible single action hand switch, or foot switch Key or code access Pulley(s) Feeds Rollers Top enclosed blade cover Enclosure as feasible as feasible Gloves (nitrile exam) for incidental chemical handling and cleaning Chemical substitution Auto retraction (kerfed to avoid restricting blade guard) Marked exclusion zone 5

6 Roller, Sheetmetal Caught between / pinch points serious (manual, foot, crushing, amputation bump, wire, light curtain) Sander, Belt (vertical or horizontal) Sander, Disc Saw, Cut Off (abrasive disc and metal cutting) Saw, Miter / Compound Miter Chop Style Saw Saw, Upright Panel Style Rotating pulleys, belts entanglement Rotating pulleys, belts entanglement Bench Sharp cutting blade lacerations, Bench Sharp cutting blade lacerations, Sharp cutting blade lacerations, for wood Finger / constant pressure switch Finger / constant pressure switch Finger / constant pressure switch Sliding adjustable roller shield Pulleys Rollers (both sides) Area below tool rest Pulleys Side Tool rest Tool rest Auto return to upright Vise bolted / clamped Auto return to upright Laser sighted cut Auto return 6

7 Saw, Wet Abrasive Shaper / Inverted Router (Table) Shear / Cutter Shear / Cutter Surface Grinder Manual Sharp cutting blade lacerations, Water / electrical shock Sharp cutting tool lacerations, amputation Rotating tool entanglement Sharp cutting blade serious lacerations, Caught between crushing Sharp cutting blade serious lacerations, Caught between crushing Rotating shaft and wheel pinch points, abrasions, entanglement Flying objects parts or wheel shatter eye, face, skin Heat / sparks burns, fire Table Saw Sharp cutting blade serious lacerations or amputation for wood or for wood Blade Cutting tool guard GFCI outlet / plug adapter Faceshield as Pushsticks Blade Blade and hold down guard Rear access prevention Wheel guard Shielded table 2 hand controls as interim and miter Splitter / riving knife Anti kickback pawls Pushsticks Featherboards / jigs SawStop required for student shops 7

8 Water Jet Cutter High pressure water lacerations Moving spray head(s) physical Key or code access Wire Wheel Rotating shafts and wheels abrasions, lacerations, entanglement Heat / sparks burns, fire Wheel enclosure as feasible GFCI outlet / plug adapter Tool rest if for holding small parts 8

Agricultural Mechanics and Technology Power Tool Safety Rules

Agricultural Mechanics and Technology Power Tool Safety Rules Name: BAND SAW Use: Cutting curves, circles and irregular shapes. 1. Use clean SHARP blades. 2. The teeth should always point DOWN. 3. Adjust