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LEGO TECHNIC Excavator Parts Inv

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					What is an EXCAVATOR?
Name: _____________________ Date: _____________________ Period: _____________________

Concept and History of the Excavator
Excavators are everywhere, and come in all shapes and sizes, from the one ton mini excavator digging ditches at the roadside to the monsters weighing thousands of tons found in mines and quarries. They are all used for essentially the same purpose - removing material from a surface and placing it elsewhere. The nature and volume of material in question, and even the weather conditions, can affect the choice of excavator and type of digging apparatus used. While excavators were apparently used for dredging in ancient Egypt, the genesis of the excavator as we know it today was the Steam Shovel, patented by William Smith Otis in 1839. Steam shovels used a system of pulleys to move their arms and bucket, but otherwise worked on exactly the same principle as a modern hydraulic excavator. Prior to the advent of the steam shovel all earth moving, from digging small holes in the ground to civil engineering projects involving the movement of thousands of tons of material, had to be done manually by gangs of laborers. The steam shovel revolutionized the construction and civil engineering industries, bringing projects hitherto impractical into reality - Otis's steam shovel was said to be able to do the work of eighty men. Excavators were first mounted on the familiar caterpillar tracks at the beginning of the 20th Century, soon after the first practical tracked vehicle, the "Caterpillar Tractor" was demonstrated by Benjamin Holt. After 1930, steam engines were generally dropped in favor of the more efficient diesel or electric power, both of which remain in use today. It took a while before hydraulics were introduced in 1961 with the Orenstein & Koppel RH 5, leading to the familiar modern power excavator.

MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part A

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Building your LEGO© TECHNIC Excavator
Perhaps you played with LEGO blocks as a kid. You may even have some experience building with the LEGO TECHNIC building system. Today, you are going to have the opportunity to begin constructing a LEGO TECHNIC #8419 Excavator. As you build your LEGO Excavator you will be introduced to a number of basic mechanical principles and mechanisms such as friction, tension, stability, and gears. You will also learn about the important LEGO building principle of “side-ways wiggle.” Once your teacher has issued you your LEGO TECHNIC Model #8419 Excavator kit please inventory your kit using a copy of the LEGO TECHNIC Excavator Parts Inventory work sheets. If your kit has missing parts, or if you are not sure which parts you are looking for, please ask your teacher for help. Using Your LEGO TECHNIC #8419 Building Instructions You will find a copy of the LEGO TECHNIC #8419 Building Instruction booklet with your excavator kit. This booklet will guide you through the 48 individual steps to successfully build your excavator. Located on page 59 of your instruction booklet are illustrations showing the individual LEGO parts in your kit and there corresponding colors. Please note that the colors for some LEGO parts shown on page 59 may differ slightly than the parts in your kit. As you progress through each page of the excavator building guide, pay special attention to the direction the small red and tan colored arrows are pointing. These arrows provide the visual directions as to how key elements of the excavator should be assembled. If you are unsure as to how individual parts are to be assembled, please ask your teacher for help. Remember, HAVE FUN!

MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part

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Name: ____________________ Period: ____________________

Date: _________________ LEGO TECHNIC Excavator Kit Number: ___

LEGO TECHNIC Excavator Parts Inventory
There are 286 individual element pieces included with your LEGO TECHNIC Model #8419 Excavator kit. Making sure that your kit has all its proper pieces will help assure your success with this project. Before you begin to build your excavator, please inventory all TECHNIC elements in your kit. You will need to use each of the following six inventory pages your instructor has provided you. Please locate each of the individual parts in your kit and record this information by placing a checkmark on the line located to the left of each LEGO TECHNIC element description. If your kit is missing any parts please note this in the space provided at the bottom of each inventory page, then inform your teacher. PLEASE NOTE – Some LEGO TECHNIC element pieces may be a different color than as described on your Parts Inventory Check List. If you are not sure about the color for a specific piece please ask your teacher. Six different TECHNIC parts on this inventory list will each have one additional piece. These pieces are used for the construction of the LEGO TECHNIC Model #8419 Bulldozer.

MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part B

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Enter the quantities of each part you have in your kit on the lines below

LEGO TECHNIC Model #8419 Excavator Parts Inventory Check List – Page #1
* Please note that some parts in your kit may differ slightly in color than parts on this check list.

Record

Record below quantities, part numbers, or descriptions of any parts you are missing from your kit:

MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part B

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Enter the quantities of each part you have in your kit on the lines below

LEGO TECHNIC Model #8419 Excavator Parts Inventory Check List – Page #2
* Please note that some parts in your kit may differ slightly in color than parts on this check list.

Record below quantities, part numbers, or descriptions of any parts you are missing from your kit:
MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part B

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Enter the quantities of each part you have in your kit on the lines below

LEGO TECHNIC Model #8419 Excavator Parts Inventory Check List – Page #3
* Please note that some parts on this list may be of a different color than the parts in your kit.

Record below quantities, part numbers, or descriptions of any parts you are missing from your kit:

MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part B

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Enter the quantities of each part you have in your kit on the lines below

LEGO TECHNIC Model #8419 Excavator Parts Inventory Check List – Page #4
* Please note that some parts on this list may be of a different color than the parts in your kit.

Record below quantities, part numbers, or descriptions of any parts you are missing from your kit:

MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part

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Enter the quantities of each part you have in your kit on the lines below

LEGO TECHNIC Model #8419 Excavator Parts Inventory Check List – Page #5
* Please note that some parts on this list may be of a different color than the parts in your kit.

Record below quantities, part numbers, or descriptions of any parts you are missing from your kit:

MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part

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Enter the quantities of each part you have in your kit on the lines below

LEGO TECHNIC Model #8419 Excavator Parts Inventory Check List – Page #6
* Please note that some parts on this list may be of a different color than the parts in your kit.

Record below quantities, part numbers, or descriptions of any parts you are missing from your kit:

This parts inventory check list was completed by Mark Gullickson in 2007 and is for informational purposes only. The above parts inventory illustrations were located at: http://www.peeron.com/ Peeron and the Peeron logo are a trademark of Dan and Jennifer Boger ©2003-2007 LDraw.org. The LDraw Parts Tracker is maintained and developed by voluntary members of the
organization

LDraw

LEGO© is a registered trademark of The LEGO Group, which does not sponsor, endorse, or authorize this parts inventory.
MAG 7-07; LEGO TECHNIC Model #8419 Excavator Lesson II, Part B

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