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Unsafe Quick Couplers Linked to Accidents

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Make sure that couplers have a manual locking pin installed and used! ... Inspection Procedures: Do you use quick couplers? If so, who are they made by? ... – PowerPoint PPT presentation

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Title: Unsafe Quick Couplers Linked to Accidents


1
Unsafe Quick Couplers Linked to Accidents
Since 1/98, there have been 16 incidents
investigated by OSHA in which workers were struck
by excavator buckets that were unintentionally
released from their quick coupling devices 9 of
these were fatal.
Note Related bucket accidents investigated by
Madison, Cincinnati, Milwaukee, Cleveland and
Columbus Area Offices
2
Unsafe Quick Couplers Linked to Accidents
Purpose of SHIB Alert employers employees that
excavator attachments may release inadvertently
from quick coupling devices if positive
corrective actions are not taken.
3
What Are Quick Couplers and Why are They Popular?
  • After market devices that enable contractors to
    make quick attachment changes on hydraulic
    excavators
  • With bucket removed the lifting capacity of the
    machine is increased
  • Contractors are able to do the majority of their
    work with a large bucket then switch to a smaller
    bucket for fine-tuning and tight areas
  • Quick couplers allow the operator to change from
    using a bucket to a ram attachment and back to a
    bucket easily

4
Why do the Buckets Release?
Quick coupler is not fully engaged
locked Bucket pin may not be sized properly Quick
coupler springs have loosen or lost adequate
tension to hold the bucket Quick couplers not
maintained properly
5
What to Do
  • Make sure that couplers have a manual locking pin
    installed and used!
  • The pin insures that the bucket will not fall off
    if the coupler fails (e.g., springs loosen etc.)
  • Coupler Manufacturers JRB and Hendrix have
    recently made retrofit kits with manual locking
    pins available for use on their equipment
  • Couplers from manufacturers Craig Esco are
    already equipped with the manual locking pins
    new JRB Hendrix couplers will be too do not
    yet know about Caterpillar

6
(No Transcript)
7
Inspection Procedures
  • Do you use quick couplers? If so, who are they
    made by?
  • Inform them of the SHIB and NIOSH Alert
  • Are they equipped with a manual locking pin? If
    so, who installs the pin? Operator can not
    install the pin from the cab it needs to be
    manually inserted
  • Are your workers familiar with these specific
    quick couplers? (Hendrix couplers are very
    different from JRBs)
  • Ask to see the pin and check machine for warning
    labels
  • If the quick couplers are not equipped with or
    using the manual locking pin a 5(a)(1) citation
    is to be issued
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