Dozer (Download) Dozers Source: http://www.cat.com/equipment/track-type-tractors/small-track-type-tractors Description of a Dozer A dozer is a tractor like machine with a blade attached to the front used to push dirt, rock, debris, and other materials. Dozers come in a variety of sizes depending on the need of the job. There are two types of dozers, wheeled and crawler. […]

Cold (Download) COLD WEATHER Construction of Twins Baseball Stadium – Minneapolis, MN 1 Cold Weather: Definition Varies by region of the country “Cold” temperatures < 40 o F “Cool” temperatures (40 - 60 o F) Temperature information inferred from www.cdc.gov Taken from www.go-explore-trans.org 2 Common Cold Weather Elements Rain, freezing rain, snow, sleet, ice, and […]

Chiggers (Download) Chiggers 1 What are Chiggers? Chiggers are often referred to as “ Red Bugs” Chiggers are the larvae of harvest mites They go through 4 stages of life Egg, Larva, Nymph and Adult Chiggers are barely visible to the naked eye, they are about 1/150 th of an inch in length Adult mites […]

Axes (Download) Axes 1 Axe – Definition An implement consisting of a heavy metal wedge-shaped head with one or two cutting edges and a relatively long wooden handle; used for chopping wood and felling trees. http://www.answers.com/topic/axe-1 2 History of the Axe The first true hafted axe dates back to before 6000 BC. Early axes had […]

Wrench-PipeCrescent (Download) Adjustable Wrench & Pipe Wrench Adjustable Wrench An adjustable wrench is a tool that is usually operated by hand, and is made for tightening or loosening bolts, nuts, or anything that needs a turn. This wrench works as a lever and there are notches at the mouth for gripping. The wrench is pulled […]

Wheelbarrow (Download) Wheelbarrow Safety http://www.google.com/images 1 Definition A wheelbarrow is a small hand-propelled vehicle, usually with just one wheel (some have two wheels ), designed to be pushed and guided by a single person using two handles to the rear. Source: http://en.wikipedia.org/wiki/Wheelbarrow http://www.google.com/images 2 Design Concept Wheelbarrows are designed to distribute the weight of the […]

Wasps (Download) WASPS 1 General Information Part of the Insect Order Hymenoptera This order also includes bees and ants Almost every insect has a wasp species that preys on it Wasps are critically important to controlling the numbers of insects and are used in agriculture for pest control 75,000 species of wasps are known 2 […]

Toxic Fumes-Gases (Download) TOXIC FUMES/GASES 1 Toxic Fumes Toxic fumes of various types might be encountered on construction sites. Typical fumes include carbon monoxide, methane, hydrogen sulfide, chlorine, and gases/fumes that displace oxygen, including nitrogen, argon, etc. 2 Toxic Fumes/Gases Toxic fumes are often odorless and since there are many types, one cannot rely on […]

Tin Snips (Download) Tin Snips http://www.transtools.co.uk/store/images/uploads/HandTools/sta214562.jpg Tin Snips A tin snip is a tool used to cut lightweight sheet metal, chicken wire, and many other (primarily metal) materials . Tin Snips Tin snips have a mechanism that is similar to the operation of scissors, but they are much stronger. Types Three basic types of tin […]

Stump Grinders (Download) STUMP GRINDERS http://heartwoodtree.com/customers/107101211483425/images/Stump-grinder.JPG Introduction A stump grinder can be used as a stand-alone power tool, or as an attachment for various types of equipment; they remove tree stumps by “grinding” them away with a rotating cutting wheel that chips away the wood. Stump grinders come in a variety of sizes, ranging from […]