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Construction Equipment and Track Maintenance Machines (2).docx
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Russia’s import of telescopic loaders (2016, in %)

Listening

Video 7

Watch the video and complete the text with proper words.

It’s the Miskin SPC 24 stretching 1)……… feet wide, 2)……… feet long and 3)……… feet high. The $ 63,000 Miskin SPC 24 is the world’s largest 4)……… 5)………, its job to scour and smooth the soil ready for freeway construction like here in Holly Springs Mississippi.

They are used for road 6)………, waste fill sites, reclamation of river bottoms. Pulled by a 425 horsepower 8-tire track traveling at 46 miles per hour, the Miskin SPC 24 can slice its 14 foot-long three piece steel blade into the earth below with the ground cutting 2500 pounds per square inch of 7)……… . Filling its bucket in just 30 seconds flat, each monstrous mouthful contains the mass of 24 cubic yards of material. Snapped by another unit, a land volume doubled to phenomenal 48 yards.

Up to 1.4 million pounds an hour or 14 million pounds of earth is scraped a day, a 8)……… almost equivalent to that of the Eiffel Tower and that takes the stress and strain out of that free road construction smoothing the way for America’s motorists one slice at a time.

Video 8

Watch the video and complete the text with proper words.

Liebherr customers place the same high demands on their 1)……… machinery as they do on themselves. Therefore, we asked the same questions as our customers: What characterizes a productive 2)……… ………? Its ability to 3)……… ………, to 4)……… them rapidly over 5)………, to work under different 6)………, and to achieve a maximum of efficiency. In our business you do not ask if the 7)……… is half full or half empty. What do we expect of the construction machinery of the 21st century? It has to have a clever concept. According to the unique drive line, Liebherr wheel loaders reach maximum tipping load with low operational 8)……… . We use a hydrostatic drive line in all our loader sizes and save up to 9)……… % of 10)……… with that concept. The application of the construction machinery has to be economical on high fuel prices, a maximum of output on low fuel cost is the most important criteria. The 11)……… technology of the future allows the performance improvement in every working step: while 12)…….., while 13)………, while 14)……… .

Checklist

Assess your progress in this unit. Say what statements are true about you.

  1. I know the meaning of the words from the word list.

  2. My listening and reading are good enough to understand most of each text in this unit.

  3. I can describe a pie chart.

  4. I can discuss specifications of a bulldozer with a partner.

Unit 4 cranes

Start up

Exercise 1. Match the words and phrases with the numbers.

a) elevating cylinder

b) telescopic boom

c) operator’s cab

d) outriggers

Exercise 2. Match the terms with their definitions.

1) cab

а) retractable component that braces the truck against the forces of its load when stationary

2) elevating cylinder

b) it is from which the operator manipulates the crane

3) outrigger

c) hydraulic device that consists of a telescopic arm for raising and lowering the boom.

4) telescopic boom

d) its parts slide one inside the other so that its height can be adjusted and it can be stored compactly for transportation

Exercise 3. Match the sentences which mean the same.

1) A crane is a machine that lifts heavy objects and moves them horizontally.

a) Loads are moved up and down by the hoist cable.

2) Cranes are commonly employed in the construction industry for the movement of materials and in the manufacturing industry for the assembling of heavy equipment.

b) The jib crane has a horizontal load-supporting boom fastened to a rotating vertical column, either attached to a wall or extending from floor to ceiling.

3) Cranes exist in an enormous variety of forms.

c) There are many types of cranes.

4) Cranes range in type and function from the largest derrick cranes to small, mobile truck cranes.

d) A crane is a hoisting machine for lifting heavy loads and transferring them from one place to another.

5) The cable dropping from the top of the jib is attached to loads and lifts them vertically.

e) Modern cranes are of varied types and sizes.

6) A jib crane is a type of crane where a horizontal member (jib or boom), supporting a moveable hoist, is fixed to a wall or to a floor-mounted pillar.

f) To move a load in and out from the crane’s center a trolley is employed along the underside of the horizontal jib.

7) A trolley runs along the jib to move the load in and out from the crane center axis.

g) Tower cranes are a common fixture at any major construction site.

8) Tower cranes are seen on almost every major construction site throughout the world.

h) Tower cranes are used extensively in construction and other industries to hoist and move materials.

Reading

Read the text and choose the name to each crane.

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