Agricultural Engineering

Agriscience

Careers In Agricultural Engineering

Ag. Safety Engineer

Tractor Mechanic

Machinery Assembler

Irrigation Engineer

Lawn Tractor Mechanic

Ag Equipment Designer

Careers In Agricultural Engineering

Engineering Careers Designers Four year degrees (B.S)

Mechanical Careers Operators Majority are two year degrees

Education varies with the type of working conditions

Safety

Objective Interpret personal safety hazards related to

careers and work in the field of agricultural engineering

Safety

50% of all farm related accidents involve working with machinery

The definition of safety: Developing an environment free from danger, risk,

or injury Impossible to accomplish

The #1 key to shop safety is the people who use it!

Principles of Safety

1. Keep the shop clean1. Prevents tripping and related injury

2. Remove unnecessary hazards1. Example- oily rags

3. Make sure all safety shields are in place

4. Do not use broken equipment

Principles of Safety

4. Wear appropriate protective clothing and devices

1. Safety glasses and goggles to protect against dust and flying objects

2. Steel toed shoes

3. Ear plugs where noise exceeds 90dB (decibels)

Equipment and Tool Safety

Hammers Make sure the handle of the hammer fits tightly on

the head Do not strike a hard steel surface with a steel

hammer (ex hammer vs. hammer) Always wear safety glasses Discard a hammer with a chipped or mushroomed

face Replace loose or cracked handles Discard hammers with cracked claws or eye

sections

Portable Circular Saw

Keep the fingers away from the trigger when carrying the saw

Do not wedge the guard in the open position The blade rotates at a very high speed

never place on a surface before the blade stops

Prevent Kickback Do not start the saw with the blade touching

the stock (wood)

Safety Color Coding

Development National organizations worked together American Society of Agricultural Engineers Safety Committee Of the American Vocational

Association

Safety Color Coding

Red Areas of danger Safety switches Fire extinguishers Red = Danger

Safety Color Coding

Orange Wheels Levers Knobs Orange = Warning

Safety Color Coding

Yellow Wheels, levers, and knobs that adjust or control

machines Yellow = Caution

Safety Color Coding

Blue “Out of Order” Broken shop equipment Blue = Information

Safety Color Coding

Green First Aid Safety Equipment Green = Safety

Fire Hazards

The Fire TriangleComponents necessary for a fire to take place

1. Fuel Any combustible material that will burn

2. Heat Most material will burn if they are made hot

3. Oxygen Gas in the air that is not a fuel but must be

present for material to burn

Fire Hazards

Fire Prevention Take away one of the components of the fuel

triangle Fire will stop or will not start

Safe storage of fuels Clean shop facilities

Fire Extinguishers

Know the kind of fire: Class A- Ordinary combustibles

paper, wood, cloth Class B- Fuel fires

gas, oil Class C- Electrical fires Class D- Combustible metals

Fire Extinguishers

C

A

B

Fire Extinguishers

Smothering a fire Best used of a person whose clothes are on fire Wrap the person in a blanket to cut off the oxygen

to the fire

Planning An Agricultural Project

Blueprints are used to plan projects

Simple designs Sharp lead pencil with an eraser Protractor Ruler (12”) Compass

Planning An Agricultural Project

Detailed plans Drawing board to attach paper Masking tape T square for drawing horizontal lines Right triangle for vertical lines Scale

Instrument with increments shortened according to proportion

1. Flat scale- looks like a ruler

2. Triangular scale- three sided, but 6 scales

Planning An Agricultural Project

The basics of drawings Sketch

Rough drawing with no demensions Pictorial drawing

Shows all three views

1. Top

2. Side or end

3. Front

Planning An Agricultural Project

Planning An Agricultural Project

The basics of drawings (continued)

A scale drawing represents objects in exact proportions If the scale is ¼”=1’ then ¼” on the drawing would equal 1

foot on the object So…. A 2” line on the drawing would equal what on the

object? 8 feet

Scale will vary depending on the size of the object

Class Assignment:

Your group will construct a 6 foot picnic table using the materials provided.

Your grade will depend on how well you follow the blueprint and how well you complete the project.

Planning An Agricultural Project

Determining Materials Bill of material List and description of materials needed to

complete a project BF= board foot

Board Feet

Thickness (inches) X Width (inches) Length (feet)

12

How many board feet are in a board 1” X 12” X 8’?

1” X 12” X 8’

12

BF =

BF =96

12= 8 BF

Board Feet

Assignment: Calculate the board feet required to build our class

project (24) 2’’X6’’X12’ (4) 2’’X6’’X10’ (8) 2’’X4’’X10’