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Mar 21 2018

Caterpillar D9 Dozer History, caterpillar jobs.#Caterpillar #jobs


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The Caterpillar D9 Bulldozer

By: The Working Man

For decades the largest earth moving bulldozer around was

the Caterpillar D9 bulldozer. A massive amount of metal

that could move massive amounts of earth or materials.

of huge pieces of heavy equipment and for good reason.

that were to become the new D9 machine, they were

modeled D9X (x for experimental).

powered by Cat’s D353 engine which stayed in the machine

until 1980 when Cat upgraded the D9 to the D9L, although

in 1956 the engine was remanufactured to produce 320 hp.

An older D9 resting after a days work excavating for a gas well

Caterpillar jobs

It got a little cold for the operator in the winter. The D9

offered little in the way of operator comfort, it was just

one huge piece of moving metal that moved huge amounts of

material and destroyed anything and everything in it’s

path. When it got really cold, they would turn the fan

around so the hot air from the engine being cooled

would blow back into the cab area. This was all right,

but there was no climate control, it was either full

on or nothing. If the operator got too warm, he had

the only other option of shedding clothes.

along with a much more comfortable seat, the cab reduces

noises to a considerable degree and there’s even

a radio and CD player.

Caterpillar jobs

sprocket on it’s D10 bulldozer, the D9L was the

first of the 9 series to follow suit. It was later

added to the D8 and D7 series of dozers. You

can read more about the elevated sprocket design

Cat D9 with Elevated Sprocket Design

Caterpillar jobs

The current D9T sports new Cat C18 ACERT engine

which uses state of the art technology to increase

power and reduce emissions. They use a cross flow

cylinder head to increase air into the combustion

chamber, water cooled turbochargers, mechanical –

electronic controlled injection system which

delivers micro blasts of fuel just prior to and just

after the main injection and a computer controlled

fuel injection process.

The Cat C18 ACERT engines are also used to power

yachts, tugboats, and various other heavy equipment

like the Cat 637G and 657G self propelled wheel scrapers,

772F quarry truck, 836H landfill compactor,

the 24M motor grader, 834H wheel dozer,

988H wheel loader and 385C L Series excavator.

Cat Challenger MT865B, MT875B and MT965B

and MT975B which is the world’s largest

4 wheel drive farm tractor clocking in at 570

horse power. The MT875B also had 575 HP but was

a track type tractor.

is available in a wide range of horse power to suit needs.

turbo charged engine delivering 410 horsepower.

Cat C18 ACERT Engine

Caterpillar jobs

The D9T has 410 HP and weighs 105,600 lbs.

In comparison, a D10T has 580 HP and weighs

146,500 lbs, where the D11T has 850 HP, weights

There are 3 different blades available for the D9:

along with side wings to push bulk material.

and smaller side wings.

A Cat D9 Blade in all it’s Awesomeness

Caterpillar jobs

There is also a ripper attachment than was available

as an option on the D9. It is attached to the rear of

the machine and used for tearing up hard and

frozen surface areas. The ripper can penetrate up

to 5 and 1/2 feet into some surfaces. The second option

for a rear attachment was a winch.

removing overburden, clearing right of ways, and road

machine to replace the D9. Other manufacturers already

had larger machines on the market and market economics

different jobs performing different kinds of work.

After extensive testing, these machines numbered,

P-1 to P-10 would become the Caterpillar D10

which could perform about 50% more work in a day

price was right around 1 dollar a pound, or with

the original D9’s weight of 49 tons, the cost would

have been around $50,000. Today the cost of a new

D9T is right around $900,000.

The engine of a D9

Caterpillar jobs

Killdozers and CaterKillers

was broadcast in 1974 as part of ABC’s suspense

movie of the week.

a South Pacific Island where their D9 dozer hits

a meteorite that has a strange alien life force in

it. The life force is transferred to the D9 and

the D9 takes on a life of it’s own, attempting to

kill all the workers on the island.

added armor plating along with machine guns and

grenade launchers turning the D9 into a tank

of sorts, complete with manned crew. Israel

uses the Armored D9 to raze Palestinian houses,

intimidate their foes and uproot precious trees and

destroy landmarks and agricultural areas.

this machine has been called various names including

corporation for allowing the sale of the D9 machines

for clearing land during the Vietnam War and in the

war in Iraq. These machines were not modified to any

degree to make them into tanks, but were basically

as was from factory, only with different paint schemes

than the traditional Cat Yellow. The Army has bought

several armored kits from the Israeli’s and used

them to modify several D9’s, but have not used them


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