Heavy Equipment

Question 1

Answer 1

Cat large excavators range from 36 to 90 tons

Attachemnts Avaialble:

Hydraulic Hammers

Grapples

Multi-Processors

Shears

Pulverisors

Compactors

Buckets

Thumbs

Couplers

Rippers

Question 2

Answer 2

Hydraulic Hammer

Can be used on Excavators, Backhoe Loaders, Excavators

Question 3

Attachements Used for Concrete Formwork of Flatwork

Answer 3

Buckets (for use on an excavator)

Buckets (for use on a loader)

Cold Planars

Compactors

Couplers (for an excavator)

Couplers (for a loader)

Material Handling Arms

Hydraulic Wheel Saws

Question 4

Types of Buckets

Answer 4

Clean Up Bucket

Question 5

Answer 5

Range from 60” Rage (For Small Excavators) to 78” (Large Excavators)

Range from 1.3yd³ to 3.66yd³

Range from 1300 to 4800 lbs

Used for cleaning, grading and finishing of ditch cleaning but also have truck loading ability of a general duty bucket.

Can be used in finish work in dirt, loam and a loose mixture of dirt and fine gravel

Tooth syles is Bolt-on Cutting Edge

Question 6

Answer 6

Digging Bucket for a mini excavator

Rage from 9” to 35”

digging in soft to moderate ground

Range in capacity from 0.6 ft³ to 7.4 ft³

Tapered bucket sidewalls allows for easier unloading od sticker materials

Question 7

Answer 7

Bucket for ditch cleaning

Designed for cleaning ditches, sloping, grading and other finish work.

For low-impact materials like topsoil and clay

Ranges from 42 to 78”

Small and medium excavators

Question 8

What is considered a large excavator

Answer 8

75-100 ton

Question 9

What to consider when selecting a bucket

Answer 9

• Truck Size: Ideal to load a truck in 4-5 passes when using a large excavator
• Impact Condiions: How diffiicult it will be to get material out of ground
• Material Density: How much a bucket load would weigh, in ideal conditions, when 100% full.
• Durrability: General Duty to Extreme Duty
• Edge Configuration: Spade edge vs Straight edge
• Tooth Spacing
• Tooth Size

Question 10

CAT’s Durrability Catagories of Buckets

Answer 10

General Duty (General excavation and truck loading of dirt, loam and gravel

Heavy Duty (general construction applications in a wide range of materials with a small aggregate size)

Severe Duty (small to medium sized materials like sandstone, shot limestone, shot granite and the like.)

Extreme Duty (aggressive digging and loading applications in broken slag, limestone, broken granite, basalt, hematite and iron ore.)

Question 11

EDGE CONFIGURATION

Answer 11

Spade edge: Offers better penetration and faster cycle times in harder materials. Used when breaking ground is the primary requirement.

Straight edge: Configurations provide for better cleaning and finishing work. Used in soil work, site development and trenching.

Question 12

Tooth Spacing

Answer 12

Lower tooth count is used in hard-to-dig rock. It results in better penetration, just like the spade edge. Used in quary work.

Tighter tooth spacing used in soil work. Bridging between the teeth and higher tooth density results in a better floor and reduces the time spent finishing the trench.

Question 13

What to consider when seelcting a tooth shape for a bucket

Answer 13

penetration ability and cycle times

Question 14

Answer 14

Demo Excavator

Better reach

More Durrable

Additional cab protections

Question 15

Answer 15

Large Excavator

Designed for aggressive digging and fast cycle times

Question 16

Answer 16

range from 20 to 35 tons

easy to transport to the jobsite

Question 17

Answer 17

Range from 11 to 18 tons

Question 18

Answer 18

3 tonne

mini excavator

Attachments:

• Augers
• Compaction Wheels
• Buckets
• Flail Mowers
• Hammers
• Mulchers
• Rippers
• Shears
• Thumbs
• vibratory plate compactor

Question 19

Answer 19

Dual Mode Selection for a choice of diesel or electric power. This innovative machine delivers zero emissions from electrical supply, low noise, superior power and control. Easily change from diesel to electric power.

Question 20

Answer 20

Mimi Excavator

Range from 1-10 metric tons

Question 21

Association of Equipment Manufacturers (AEM) lumps crawler excavators into three general size categories. What are they?

Answer 21

• Mini or Compact (0 – 6 metric tons; or <13,227 pounds)
• Midi (6 – 10 metric tons; or 13,227 – 22,046 pounds)
• Standard/Full-Size Crawler Excavators (10 – 90 metric tons; or 22,046 – 198,416 pounds):

Question 22

Benefits of a Compact/Mini excavator

Answer 22

small excavators that get into the tight places

Certain Class 1 and Class 2 trucks can haul compact excavators without requiring the driver to have a Commercial Drivers License (CDL)

3-4 metric tons (6,613 – 8,818 pounds) are the most popular

Extremely versatile, performing in-building work, tight subdivision sewer repairs, water line installs and foundational repair that may not require the size of a conventional excavator

Question 23

Benefits of a Midi/Mid-Size excavator

Answer 23

Provides digging and lifting capabilities more in line with their full-sized counterparts, but are still compact enough that they provide advantages in transportation and jobsite access.

Question 24

Benefits of a Standard/Full Sized excavator

Answer 24

Widest spectrum of excavators available on the market today.