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Hand and Power Tools for construction

Hand and Power Tools for construction. Basic tool safety . Keep in good condition Right tool for job Inspect tools Operate tools correctly PPE needed. 1a. Construction tool safety rules. Safety Use guards Use PPE . 2a. Switches on power tools . Positive “on-off” control

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Hand and Power Tools for construction

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  1. Hand and Power Toolsfor construction

  2. Basic tool safety • Keep in good condition • Right tool for job • Inspect tools • Operate tools correctly • PPE needed 1a

  3. Construction tool safety rules • Safety • Use guards • Use PPE 2a

  4. Switches on power tools • Positive “on-off” control • Momentary contact “on-off” control • Constant pressure switch 3a

  5. Hand tools • Hazards posed • Misuse • Improper maintenance 4a

  6. Knives and scissors • Keep sharp • Dull tools-hazardous • Use PPE 4b

  7. Power tools • Electric • Pneumatic • Liquid fuel • Hydraulic • Powder–actuated 5a

  8. General precautions • Don’t carry by cord • Never yank the cord • Heat, oil, and sharp edges • Disconnect tools • Safe distance • Secure work 5b

  9. General precautions • Accidental starting • Maintained per manufacturer • User's manual • Good footing • Proper apparel • "Do Not Use” 5c

  10. Guards • Point of operation • In–running nip points • Rotating parts • Flying chips and sparks 6a

  11. Hazards of electric power tools • Electrocution • Burns • Slight shocks • Falls 7a

  12. Shock protection • Three–wire cord • Double insulated • Low–voltage isolation transformer 7b

  13. Hazards of abrasive wheel tools • Moving wheel surface • Throw fragments • Disintegrating during start–up 8a

  14. Use of abrasive wheel tools • Inspect closely • Sound– or ring–test • Use guard • Use eye protection • Turn off the power • Never use a vise 8b

  15. Pneumatic tools • Compressed air • Chippers • Drills • Hammers • Sanders 9a

  16. Hazards • Struck by attachments • Struck by fastener 9b

  17. Pneumatic tools • 100 pounds per square inch • Needs special device • Prevent fasteners from ejection 9c

  18. PPE • Eye protection—required • Face protection—recommended • Ear protection—depends 9d

  19. Air hose safety • Fastened securely • Prevent disconnection • Added safeguard 9e

  20. Precautions • Same as electric cords • Safety clip or retainer • Screens and flying fragments • Never pointed toward anyone 9f

  21. Heavy jackhammers • Fatigue • Strains • Heavy rubber grips 9g

  22. PPE • Safety glasses • Safety shoes • Face shield 9h

  23. Liquid fueled-powered tools • Gasoline most common fuel 10a

  24. Fuel vapors • Burn or explode • Give off dangerous exhaust fumes 10b

  25. Proper procedures • Handling • Transporting • Storage 10c

  26. Refilling • Shut engine down • Allow it to cool 10d

  27. Ventilation • Closed area • Effective ventilation • PPE 10e

  28. Powder–actuated tools • Operate like a loaded gun • Specially trained employees 11a

  29. Safety precautions • Explosive/flammable atmosphere • Inspect • Don’t point • Don’t load • Don’t leave unattended • Hands clear 11b

  30. Operation • Bring the tool into position • Pull the trigger • Five pound force 11c

  31. Misfires • Wait 30 seconds • Try firing again • Wait 30 seconds • Remove the load • Put in water 11d

  32. PPE • Suitable eye • Face protection 11e

  33. Guarding • Protective shield/guard • Will not fire 11f

  34. Varying powder charges • Power level • Excessive force 11g

  35. Defects • Tagged • Take out of service 11h

  36. Applying fasteners • Precautions • Alignment guide 12a

  37. Hydraulic power tools • Fluid • Correct pressure 13a

  38. Jacks • Lever/ratchet jacks • Screw jacks • Hydraulic jacks 13b

  39. Safety precautions • Stop device • Load limit • Blocked up • Slippage 13c

  40. Jack set-up • Firm level surface • Correctly centered • Jack head • Lift force 13d

  41. Maintenance • Inspect • Lubricate • Abnormal load • Antifreeze liquid 13e

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