BAM 802 SPECIAL TYPE OF VEHICLES2013-2014- C.COOMARASAMY- PROF/AUTO- BIST

Unit I (1.2)Earth moving and construction equipments-capacity and applications of earthmovers-2. Front-end loaders.

stv cc ppt unit I (1.2) em&ce- capacity and application of earthmovers2. Front - end loaders.

1.2.2. LOADER

A loader is a heavy equipment machine often used in construction, primarily used to load material (such as demolition debris, dirt, snow, feed, gravel, logs, raw minerals, recycled material, rock, sand, and woodchips) into or onto another type of machinery

(such as a dump truck, conveyor belt, feed-hopper, railcar, laying pipe, or into an open trench excavation).

A loader is also known as: bucket loader, front loader, front end loader, pay loader, scoop, shovel, skip loader, and/or wheel loader.

1.2.2. LOADER

It is a type of tractor, usually wheeled,

sometimes on tracks, that has a front-mounted square wide bucket connected to the end of two booms (arms) to scoop up loose material from the ground, and move it from one place to another without pushing the material across the ground.

True Self-Leveling (TSL)

In construction areas loaders are also used to transport building materials - such as bricks, pipe, metal bars, and digging tools - over short distances.

A loader is not the most efficient machine for digging like a backhoe as it cannot dig very deep below the level of its wheels.

The capacity of a loader bucket can be anywhere from 0.5 to 36m3

depending upon the size of the machine and its application. The front loader's bucket capacity is generally much bigger than a

bucket capacity of a backhoe loader.

Large loaders, such as the Kawasaki 95ZV-2, John Deere 844K, Caterpillar 950H, Volvo L120E, Case 921E, or Hitachi ZW310 usually have only a front bucket and are called Front Loaders, whereas

Small loader tractors are often also equipped with a small backhoe and are called backhoe loaders or loader backhoes or JCBs, after the company that first invented them.

1.2.2. LOADER

1 Heavy equipment front loaders 2 Armored Wheel Loaders 3 Tractor front loaders 4 Compact front end loaders 5 Skid loaders & track loaders 6 Swingloaders 7. Back-hoe loaders

Loading a truck

1.2.2.1. LOADER - TYPES

Swingloaders

Front End Loaders on CUT size tractors

Track loaders

Back-hoe loaders

Most loaders are wheeled and not tracked, although track loaders are common.

They are successful where sharp edged materials in construction debris would damage rubber wheels, or where the ground is soft and muddy.

Wheels provide better mobility and speed and do not damage paved roads as much as tracks, but provide less traction.

Front loaders are commonly used to remove snow especially from sidewalks, parking lots, and other areas too small for using snowplows and other heavy equipment.

They are sometimes used as snowplows with a snowplow attachment but commonly have a bucket or snow basket, which can also be used to load snow into the rear compartment of a snowplow or dump truck.

High-tip buckets are suitable for light materials such as chip, peat and light gravel and when the bucket is emptied from a height.

1.2.2.2. WHEELED LOADER

Wheeled Loader

Where ground conditions permit, the wheeled loaders is finding

increasing favour on the construction site. Articulated version offset the reduction in maneuverability of the

larger models which might otherwise limit their use on the more

congested site.

1.2.2.2. WHEELED LOADER

A relatively small front loader

A tracked /skid loader is a small loader utilizing four wheels with hydraulic drive that directs power to either, or both, sides of the vehicle.

Very similar in appearance and design is the track loader, which utilizes a continuous track on either side of the vehicle instead of the wheels.

1.2.2.3. TRACKED / SKID LOADER

Close-up of articulated steering apparatus

Tracked /Skid Loader

1.2.2.4. FRONT END LOADER - DEFINITIONS

Attachment- a bucket or other implement designed to be attached.FEL. Competent person - for any task means a person who has acquired,

through training, qualifications or experience, or a combination of them, the knowledge and skills to carry out that task.

FEL - front end loader, a unit consisting of lifting arms and fastening

devices, designed to be mounted on the front of an agricultural tractor

and equipped for fitting of a bucket or other attachment. Rated capacity- the maximum lift capacity (in kilograms) at maximum

height for the FEL and standard bucket, determined in accordance with ASAE S301.

Rollback - losing control of the load, resulting in the load falling rearwards onto the tractor and/or operator.

ROL - rated operating load, the maximum load (in kilograms) that can be lifted to full height without exceeding the tractor specifications and

still maintaining stability – ROL is determined for a specific tractor,

FEL and attachment combination.

John Deere compact utility tractor

1.2.2.4. FRONT END LOADERS

Allied Farm King 95 Series | Midmount 2000 Series |

Compact front end loaders

Allied by Farm King front-end loaders are backed by years of extensive research. Factory testing simulates specific operations to evaluate durability; days of continuous cycling in raising, twisting and dropping loads using a programmed hydraulic power unit represents years of extreme use.

1.2.2.4. FRONT END LOADERS

HYDRAULIC SHOVELMACHINE MADE UP OF A PIVOT CAB WITH A BUCKET ATTACHED FOR MOVING VARIOUS TYPES OF MATERIAL.

1.2.2.4. FRONT END LOADERS

1.2.2.5. ROLLBACK ELIMINATION SYSTEM.

✓

✗

The angle of the earthmoving bucket attachment, relative to the ground, is greatly increased as the FEL is raised, which allows the load to rollback on to the tractor or 0perator.

With self-leveling anti-rollback device incorporated into the FEL and its attachments, the angle remains the same and ensures the risk of rollback is eliminated when operated correctly.

Change in centre of gravity and stability by adding a FEL

1.2.2.6. CENTRE OF GRAVITY

1.2.2.7. FRONT-END LOADERS - ATTACHMENTS

Attachment connectionFront-end loader attachments

1.2.2.7. FRONT-END LOADERS - ATTACHMENTS

Standard Bucket

Available in 48", 60", 72", 84",96" and 100". Capacities rangefrom 6.3 cu. ft. up to 1.19 cu. yd.

Available in 84" and 100" sizes.Capacities range from 1.35 cu.yd. up to 2.25 cu. yd.

Large Capacity/Snow Bucket

Available in 67" and 85" sizes.Dirt plate extension kits areavailable to convert bucket tostandard use. Tines are included.

Manure Bucket

Snow Blade

For front end loader or skid steerconfiguration. Reversible cuttingedge. Dual acting cylinderhydraulics provide hands freeangle adjustment.

1.2.2.8. FRONT END LOADER - SPECIFICATIONS 'ULTRA' SERIES

MODEL M1 M2 M3 ML L1 L2 L3 BUCKET WIDTH (MILLIMETRES)

1100 mm 1200 mm 1500 mm 1800 mm 1800 mm 2200 mm 2400 mm

BUCKET CAPACITY (CUBIC METRES)

0.1 0.2 0.3 0.4 0.6 0.8 1.0

LIFT HEIGHT IN METRES (LEVEL)

1.9 2.2 2.4 3.0 3.6 3.9 4.3

LIFT HEIGHT IN METRES (DUMPED)

1.6 1.9 2.1 2.6 3.1 3.3 3.6

DIGGING DEPTH (MILLIMETRES)

50 50 50 75 75 80 100

LIFT CYLINDER(STROKE / BORE - MILLIMETRES)

305 x 50 380 x 50 455 x 50 455 x 75 610 x 75 765 x 75 915 x 75

SELF SUPPORTING

YES YES YES YES YES YES YES

DUMP ANGLE (DEGREES)

65 65 65 65 65 65 65

RECOMMENDED HYDRAULIC PRESSURE (PSI)

2200 2200 2200 2200 2400 2400 2400

TRACTOR POWER RATING REQUIRED (KW)

to 15 to 24 to 38 to 50 to 70 to 105 to 150

ARM WIDTH (MILLIMETRES)

850 850 850 1250 1250 1250 1250

DRIVE IN DRIVE OUT FRAME

YES YES YES YES YES YES YES

GRILL GUARD YES YES YES YES YES YES YES

LEVEL INDICATOR YES YES YES YES YES YES YES

LEVEL LIFT YES YES YES YES YES YES YES

1.2.2.9. NOTABLE MANUFACTURERS

L&T Case Caterpillar

Doosan Infracore

(formerly Daewoo Heavy Industries & Machinery) - including Solar brand

JCB John Deere Kawasaki

Komatsu Kubota Manitou

LeTourneau Liebherr LiuGong

New Holland Volvo Construction Equipment

Wacker Neuson XCMG

1.2.2.10. SAFETY SIGNS/DECALS

The FEL must clearly display pictorial and written signs warning against the serious safety risks. FEL attachments may also require pictorial and written signs warning against theirspecific serious safety risks.

These are examples ofsafety signs that may be used.