Agricultural Engineering Obj. 6.00

Ag Engineering Industry Ag mechanics is the design, operation, maintenance, service, selling and use of power machinery, equipment, structures and utilities in agriculture.

Careers in Ag Engineering Power and Electricity Electrician Safety technician Equipment mechanic

Careers in Ag Engineering Machinery Farm equipment mechanic Parts person Equipment salesperson Small engine mechanic Large machinery operator

Careers in Ag Engineering Soil and Water Engineering Soil conservation technician Irrigation engineer

Careers in Ag Engineering Ag mechanics, construction, and maintenance Construction worker Welder Safety specialist

Careers in Ag Engineering Ag Structure, equipment, and facilities Construction supervisor Farmstead planner Greenhouse builder CAD engineer

Shop Safety Nearly 50% of all farm related accidents involve working with machinery Safety is providing an environment free from danger, risk, or injury Those who work in a shop should always be trained Those who work in a shop should pass a safety test prior to using the shop

Shop Safety Keep the shop in an orderly manner Remove unnecessary hazards (oily rags) Wear appropriate personal protective clothing and devices Safety glasses Steel toe shoes Ear protection (prevents hearing loss when the noise level exceeds 90 decibels)

Safety Color Coding a Shop Alerts people to dangers and hazards Red = DANGER, safety switches and fire extinguishers Orange = WARNING, machine hazards like edges and opening Yellow = CAUTION, wheels, levers, knobs Blue = INFORMATION, “out of order” signs or broken equipment Green = SAFETY, presence of first aid and safety equipment

Fire Hazards in the Shop Fire Triangle – components necessary for a fire fuel, anything that will burn (oily rags, sawdust, etc) Heat, material will burn if hot enough Oxygen, must be present for fuels to burn

Fire Prevention in the Shop Take away one of the components of the fire triangle and a fire will stop Safely store fuels or combustible materials Clean shop decreases the chance of fire

Extinguishing Fires Know the kind of fire extinguisher that is used for different kinds of fires prior to the fire Know the placement of a fire extinguisher so that time is not wasted looking for one When using, hold upright, pull the ring pin, and press the lever. Direct the nozzle toward the base of the fire

Planning a Engineering Project Simple project plans Completed with paper and a sharp lead pencil Protractor for measuring and drawing angles Compass for drawing circles and arches A good eraser is used to make corrections A 12” ruler for basic drawings

Planning an Ag Engineering Project More Detailed Plans A drawing board is used for attaching the drawing paper Masking tape is used to secure the drawing paper to the drawing board The T square is helpful for drawing horizontal lines The right triangle is used for vertical lines The scale is used to make proportions

Planning an Ag Engineering Project Large Scale Projects Use CAD CAD can significantly reduce design time

Basics of Drawing A sketch is a rough drawing, doesn’t have dimensions included Pictorial drawing shows all 3 dimensions at once (front, side, and top) Scale drawing represents an object in exact proportion, although the object itself maybe a different size If the scale is ¼” = 1”, then every ¼” on the drawing would equal 1” on the actual object If you had a 2” line it would equal 8” actual because 2 divided by ¼ = 8

Wood Projects The fastest way to fasten wood is by nailing with a nail hammer or nail gun Screws hold better than nails and are used with a screwdriver. Flathead screws is most used Bolt and used for fastening wood at high stress points Gluing wood can make the object as strong as the wood itself

Metal Projects Steel is the most commonly used metal Soapstone is a rock that is used to mark on metal because it shows up better than pencil A hacksaw is used for cutting metal

Ag Mechanic Tools Chalk line reel Making straight lines

Ag Mechanic Tools Tape Rule Straight or curved measuring

Ag Mechanic Tools Combination Square Determining 45 and 90 degree angles

Ag Mechanic Tools Try Square 90 degree squaring

Ag Mechanic Tools Level Leveling and plumbing

Ag Mechanic Tools Hack saw Cutting metal

Ag Mechanic Tools Portable circular saw Sawing wood in construction projects

Ag Mechanic Tools Circular carbide saw blade Used on portable circular saw

Ag Mechanic Tools Coping Saw Cutting curves and irregular cuts

Ag Mechanic Tools Portable Jig Saw Making irregular cuts

Ag Mechanic Tools Countersink Faring top of hole for recessing head for flathead screw

Ag Mechanic Tools Masonry Bit Nailing in concrete, brick

Ag Mechanic Tools Portable electric drill Drilling holes with an external source of electricity

Ag Mechanic Tools Straight shank drill bit Drilling metal

Ag Mechanic Tools Speed bore bit Wood boring bit for electric drill

Ag Mechanic Tools Ball pein hammer Hammering metal

Ag Mechanic Tools Nail hammer Driving nails

Ag Mechanic Tools Nail set Countersinking nail heads

Ag Mechanic Tools Pin punch Driving out metal pins

Ag Mechanic Tools Sledgehammer Heavy hammering

Ag Mechanic Tools Long nose pliers Reaching into recessed areas

Ag Mechanic Tools Slip joint pliers Adjust for holding various size material

Ag Mechanic Tools Groove joint pliers Gripping when greater pressure is needed

Ag Mechanic Tools C Clamp Clamping two or more pieces of metal together

Ag Mechanic Tools Drill press vise Holding stock while drilling

Ag Mechanic Tools Adjustable Wrench Turning various size nuts and bolts

Ag Mechanic Tools Combination Wrench Turning hex and square nuts and bolts

Ag Mechanic Tools Pipe Wrench – turning and holding metal pipe

Ag Mechanic Tools Regular Socket General purpose socket for turning nuts and bolts

Ag Mechanic Tools Open end Wrench Turning square head nuts and bolts