Reducing hazards in agricultural mechanics
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Reducing Hazards in Agricultural Mechanics. Ag 1 Safety: Unit 2. Objectives. Reduce hazards in ag mechanics State the three conditions necessary for combustion Match appropriate types of fire extinguishers to each class of fire. Reducing Fire hazards.

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Presentation Transcript

Objectives
Objectives

  • Reduce hazards in ag mechanics

  • State the three conditions necessary for combustion

  • Match appropriate types of fire extinguishers to each class of fire


Reducing fire hazards
Reducing Fire hazards

  • Losses from fire can be prevented through attention and knowledge of how fire works


The fire triangle
The fire triangle

  • To produce fire, 3 components are needed

Fuel: any combustible material that will burn

Heat: the energy that causes temperture to rise

Oxygen: atmospheric gas that must be present for fuels to burn


Preventing fires in ag mechanics
Preventing Fires in Ag Mechanics

  • Store fuels in approved containers

  • Store fuels away from other materials that burn easily

  • Store materials in areas that are cooler than their combustion temperture

  • Put out fires by removing one or more elements in the fire triangle


Classes of fires
Classes of Fires

  • Classification is based on how to safely and cheaply extinguish each type of material

  • Water is the cheapest but not always the safest

  • 4 classes

    • A

    • B

    • C

    • D


Class a
Class A

  • Ordinary combustibles

    • Wood, paper, trash

  • Does not include any time in the presence of electricity or any type of liquid


Class b
Class b

  • Flammable liquids

    • Fuels, greases, paints and other liquids not in the presence of electricity


Class c
Class c

  • Electrical equipment


Class d
Class d

  • Combustible metals

  • Difficult to extinquish

  • Only a class D extinquish will work


Types of fire extinguishers
Types of Fire extinguishers

  • A proper fire extinguisher can put out a fire with in seconds

  • The key is using the proper extinguisher, using it immediately and in the proper way


Types of extinguishers
Types of Extinguishers

  • Water with pump or gas pressure—Class A fires

  • Carbon dioxide gas (CO2)—Class B and C

  • Dry Chemical—Class A,B,C

  • Blanket—used for smothering fires on humans or animals



Location of fire extinguishers
Location of Fire Extinguishers

  • Place

    • Where fires are likely to occur

    • In a clean, dry location near exits

    • Within easy reach

  • Should be hung so the top is not more than 3 ½ to 5 feet above the floor, the bottom should be at least 4” off the floor

  • Should be in a position to remove quickly


Using a fire extinguisher
Using a Fire Extinguisher

  • Hold upright, pull ring pin

  • Start back 10 feet, aim at the base of the fire

  • Squeeze lever, sweep side to side

  • http://www.youtube.com/watch?v=uGIleFfKGR4