Docstoc

Skid Steer Loader SKID STEER LOADERS SKID STEER LOADERS WHAT

Document Sample
Skid Steer Loader SKID STEER LOADERS SKID STEER LOADERS WHAT Powered By Docstoc
					SKID-STEER LOADERS
SKID-STEER LOADERS
        WHAT IS A SKID-STEER LOADER?

A SKID-STEER LOADER is a rigid frame, engine-powered
machine with lift arms used to attach a wide variety of
labor saving tools or attachments.
SKID-STEER LOADERS
       WHAT IS A SKID-STEER LOADER?

 SKID-STEER LOADERS have lift arms that are alongside
 the driver with the pivot points behind the driver’s shoulders.
SKID-STEER LOADER
   COMPONENTS




             http://en.wikipedia.org/wiki/Skid_loaders
SKID-STEER LOADERS
Because of the proximity to moving booms, early
SKID-STEER LOADERS were not as safe especially during
the entry and exit of the operator.
   History of the SKID-STEER LOADERS

-The first three-wheeled, front-end loader was invented by
Cyril and Louis Keller in Rothsay, Minnesota in 1957.
-It was built to help a farmer mechanize the process of
cleaning turkey manure from the barn.
-The light and compact machine (with its rear caster
wheel), was able to turn around within its own length.
-In 1958, the Melroe brothers of Melroe Manufacturing
Co., purchased the rights and hired the Kellers to continue
refining their invention. At the end of 1958, the M-200
Melroe self-propelled loader was introduced.



                                             www.wikipedia.org/wiki/Skid_loaders
THE FIRST SKID-STEER LOADER
History of the SKID-STEER LOADERS

- The M-200 featured two independent front-drive wheels
  and a rear caster wheel, a 12.9 hp engine and a 750-lb.
  lift capacity.
- Two years later, the rear caster was replaced with a rear
  axle, which created the M-400 (the first four-wheeled
  skid loader). The M-400 became the Melroe Bobcat.
- From this, other companies began emulating the
  equipment including: John Deere, Case, JLG, JCB, New
  Holland, Gehl, Mustang, ASV, Catepillar, etc…*



                                             www.wikipedia.org/wiki/Skid_loaders
      SKID-STEER LOADER
         APPLICATION
• primarily used in place of a large
  excavators, especially space is limited
• Ideal for digging under structures
  where overhead clearance does not
  allow for the operation of the boom of
  a large excavator e.g., under road
  overpasses or in basements
SKID-STEER LOADER
 The conventional bucket of many
    SKID-STEER LOADERS
 can be replaced with a variety of
      specialized buckets or
          attachments.
SKID-STEER LOADER
  ATTACHMENTS…
        Backhoe, Hydraulic Breaker,
        Pallet Forks, Angle Broom,
        Sweeper, Auger, Mower, Snow
        Blower, Stump Grinder, Tree
        Spade,       Trencher,   Dumping
        Hopper, Ripper, Tillers, Grapple,
        Tilt, Roller, Snow Blade, Wheel
        Saw, Cement Mixer, Wood
        Chipper, etc…
SKID-STEER LOADERS
    POWER TRAIN
SKID-STEER LOADERS are four-wheel drive vehicles
  with the left-side drive wheels independent of the
                 right-side drive wheels.
SKID-STEER LOADERS
SKID-STEER LOADERS can turn in their own tracks
which makes them extremely maneuverable and valuable.
    Types of Accidents
• During a skid-steer loader
  accident, an operator can be hit
  or crushed by the bucket,
  crushed in a rollover accident, run
  over, or pinned between the lift
  arm and the frame.
                                     OSHA reported bobcat fatalities
                                                    Types                                   Total

                             Surrounding worker deaths                                       26


  Skid-Steer                 Struck/pin/crush by accessory

                             Struck/pin/crush by lift arms
                                                                                              9

                                                                                             24

   Loader                    Crushed between skid-steer loader and
                             object
                                                                                             18


                             Death from Ejection                                              2
   Fatality                  Drowning from rollover                                           3
                             Objects entering cabin                                           2
  Statistics                 Tire Explosion                                                   1


                             Electrical Shock                                                 2


                             Skid Steel fell over edge causing death                          3


                             Total                                                           90
* Some types or causes are
involved in the same
incidences
                                 Source: extracted from OSHA accident investigation data (1990-2007)
Skid-Steer Loader Fatality
   SKID-STEER LOADER
                    FATALITY STATISTICS

● A total of 90 deaths have occurred from the operation
of SKID-STEER LOADERS from 1990-2007

● 16 of the 90 deaths resulted from injuries sustained by the
operator. 14 of these resulted from injuries inflicted by the
arm of the machines.




                                       Source: Extracted from OSHA Accident Investigation Data1990-2007
     SKID-STEER LOADER
       Types of Accidents
                                               Burn Hazard


                                               Keep hands away
                                               from moving machine
                                               parts


                                               High pressure fluid
                                               can cause an injection
                                               injury

                                               Equipment can drop
                                               and crush a person


-Crushed by moving parts                       Avoid getting caught
                                               in rotating parts
-Rollover accidents
                           http://www.oznet.ksu.edu/library/ageng2/MF2711.pdf
          SKID-STEER LOADER
              ACCIDENTS
EXAMPLE #1: The company owner, was loading a SKID-STEER loader
onto a lowboy trailer. When he stood up inside the cage of the skid-steer
loader to check his location on the trailer, he deactivated the safety device
with his foot. The bucket moved upward, catching his head and neck
between the bucket and the safety cage. He suffered neck trauma and
ruptured his jugular vein.
          SKID-STEER LOADER
              ACCIDENTS
EXAMPLE #2: Operator was operating a bobcat skid-steer loader that got
stuck in the mud. He raised the seat bar with the engine still running and
attempted to leave the machine. The left foot pedal, which raises and
lowers the loader bucket, failed to engage the left pedal interlock when the
seat bar was raised. The left pedal interlock, when engaged, prevented
the loader arms from operating. As he stood up to leave the machine, his
left heel applied pressure to the foot pedal, causing the loader arms and
bucket to rise and pin him at chest level between the bucket and the top
part of the operator cab. He died from his injuries.
     SKID-STEER LOADER ACCIDENTS
Example #3: A 16 yr old landscaper died as a result of a
traumatic injury from being struck by the bucket of a skid-
steer loader. Working on sloped surface (facing downward),
the operator proceed to remove stakes in the ground by
lifting the lift arms up. Upon removing the third stake, the
loader tipped forward. The operator proceeded to stabilize
the machine by lowering the bucket, but the victim who was
standing to the front and side of the equipment slipped and
fell beneath the bucket.




                                           http://www.cdc.gov/NIOSH/skidalt.html
        SKID-STEER LOADER
           OSHA SAFETY
           REGULATIONS
Although no specific regulations have been
developed for
SKID-STEER LOADERS, OSHA has kept
this piece of
equipment in mind.

OSHA Subpart – O, 1926.602: The
promulgation of specific
rules for compactors and rubber-tired
―SKID-STEER‖
equipment is reserved pending
consideration of standards
currently being developed.
                SKID-STEER LOADER
             OSHA SAFETY REGULATIONS
-The OSHA regulations cont.
       -All bidirectional machines will be
       equipped with a horn, distinguishable
       from the surrounding noise level, which
       will be used as needed when the
       machine is moving[29 CFR
       1926.602(a)(9)(i)].
       -Scissor points on all front end loaders
       will be guarded [29 CFR 1926.602(a)(10)].
       -End loader buckets and similar
       equipment will be fully lowered or
       blocked when being repaired or when
       not in use. All controls will be in a neutral
       position, with the motors stopped and
       the brakes set [29 CFR 1926.600(a)(3)(i)].
                                                       http://www.cdc.gov/NIOSH/skidalt.html
                SKID-STEER LOADER
                   OSHA SAFETY
                   REGULATIONS
-The OSHA regulations cont.
       -Equipment manufactured after 1972, shall be equipped with
       ROPS which meet the minimum performance standards
       prescribed in 29 CFR 1926.1000(b) and 1926.1000(c)(2).
       -No modifications or additions which affect the capacity or safe
       operation of the equipment will be made without the
       manufacturer’s written approval. If such modifications or changes
       are made, the capacity, operation, and maintenance instruction
       plates, tags, or decals shall be changed accordingly [29 CFR
       1926.602(c)(ii)].




                                                   http://www.cdc.gov/NIOSH/skidalt.html
      SKID-STEER LOADER
             ANSI
     SAFETY REGULATIONS
- The SAE has developed a
standard for the American
National Standards Institute
(ANSI) addressing skid-steer
loaders. The SAE standard
SAE J1388 (June 1985)
contains design guidelines
that address machine
rollovers and the hazards of
pinning between the lift arms
and frame and between the
bucket and frame [ANSI/SAE
1985].                          http://www.cdc.gov/NIOSH/skidalt.html
  SKID-STEER LOADER
ANSI SAFETY REGULATIONS
 -To conform with this recommended practice, manufacturers must
 do the following:
          -Provide warnings, operator instructions, and service
          procedures
          -Equip the machine with seat belts
          -Provide a means to prevent the lift arm from lowering
          when the operator is entering or exiting from the machine
          -Provide handholds and steps to facilitate entry and exit
          from the loader
          -Provide ROPS with side screens
          -Provide two openings for emergency exit
          -Provide safety signs and instructions to warn of hazards
          during normal operations and servicing
                                                    http://www.cdc.gov/NIOSH/skidalt.html
       SKID-STEER LOADER
        Accident Prevention
• Operator:
  – The safety procedures, signs
    and electronic deterrents are
    all in place on the SKID-
    STEER LOADER for safe
    operation of the machinery.
  – The operator should be
    trained and made aware of
    these dangers, but ultimately
    makes the choice of
    operating under safe
    conditions or not.
                  Safety Procedures for
                  SKID-STEER LOADER
Pre-operation:
-Train operators and workers who service the loaders to read and follow
the manufacturer's operating and service procedures given in the
operator's manuals and on the loader's warning signs.
 - Read and follow directions in the equipment operator’s manual.
- Pay attention to safety instructions in the manual and warning labels on
the equipment
- Pre-start inspection (performed everyday)
    -Check tires, cabin, side screens, safety belt & bar, grab handles,
    steps, front and rear attachments, and fluid leaks *




                                      * http://www.oznet.ksu.edu/library/ageng2/MF2711.pdf
                                      ** http://www.cdc.gov/nasd/docs/d001801-d001900/d001877/d001877.html
                   Safety Procedures for
                   SKID-STEER LOADER
Entering
 - Enter only when the bucket or other attachment is flat on the ground—
or when the lift-arm supports are in place. Use supports supplied or
recommended by the manufacturer.

- When entering the loader, face the seat and keep a three point contact
with handholds and steps.

-Never use foot or hand controls for steps or handholds.

-Keep all walking and working surfaces clear of debris.

- Before leaving the operator's seat,
    - lower the bucket or other attachment flat to the ground,
    - set the parking brake, and
- turn off the engine.
                                                 http://www.oznet.ksu.edu/library/ageng2/MF2711.pdf
          Safety Procedures for
          SKID-STEER LOADER
-   Exiting:
-   Before leaving the operator's seat,
     - lower the bucket or other attachment flat to the ground,
     - set the parking brake, and
- turn off the engine.
     -Prior to entering or exiting the vehicle make sure that
      that the safety for the lifting arm is engaged.




                                                   http://www.oznet.ksu.edu/library/ageng2/MF2711.pdf
SKID-STEER LOADER
          Accident Prevention
• For Surrounding Workers
   – Make sure surrounding workers are aware
     of the dangers of working near loud and
     powerful equipment that has limited
     operator visibility.
   – Surrounding employees should always
     assume the operator does not see them.
   – Use extreme caution when walking behind
     or directly to the side of the bobcat
   – Surrounding workers must assume
     responsibility to stay out of harms way.
                  Safety Procedures for
                  SKID-STEER LOADER
Maintenance:
- Follow the manufacturer’s
instructions for maintaining the
loader

- Keep the foot controls and the
operator’s compartment free of
mud, ice, snow, and debris

- Before servicing the loader: (1)
set the parking brake, (2) lower the
bucket or other attachment flat to
the ground, (3) turn off engine, (4)
remove the key from the switch
                                       http://www.cdc.gov/NIOSH/skidalt.html
               Safety Procedures for
               SKID-STEER LOADER
- If the machine cannot be serviced with the bucket on the
  ground, use the lift arm supports recommended or
  provided by the manufacturer. If the machine is not
  equipped with lift arm supports, contact the equipment
  dealer or manufacturer's representative for help in
  selecting proper supports.

-    Never work on the machine with the engine running
    unless directed to do so by the operator's manual.
    Follow the manufacturer's safety recommendations to
    complete the task. If the adjustments require that the
    engine be in operation, use two persons to perform the
    task.
THINK SAFETY

WORK SAFELY

				
DOCUMENT INFO