Safety Meeting Presentation: Part II

1
Safety Meeting Presentation Part II
Department of Occupational Safety and
Health Executive Vice Presidents
Office Communications Workers of America, AFL-CIO
2
Overview

• This second presentation should be used as a
  follow-up to the first one. It is intended to
  reinforce the concepts of the first session with
  more hands-on application.
• Make sure that participants bring their tools to
  this meeting, because they will be evaluating
  their own tool design and tool use.
• In addition, besides presenting an ergonomic job
  hazard analysis (EJHA) for a specific task
  (using a 710 splice unit), you can also develop a
  EJHA for other tasks, either during or outside
  the meeting.
• The presentation begins with the tool
  design/selection checklist, and sample completed
  tool design checklists for five (5) sample tools.
• Next, we review the tool use checklist and apply
  it to two different situations.
• Finally, we demonstrate an EJHA and the sample
  EJHA for the 710 splice unit. For each of these
  three segments, you can substitute your own
  analyses or do one jointly as part of the
  program. You can also use any or all of these
  forms outside of the class to develop your own
  analyses or examples for further instruction.

3
Is it the way theyre designed, the way theyre
used,or both?

• A poorly designed hand tool, even if you think
  youre using it correctly, can increase your risk
  of developing a repetitive stress injury.
• Even if youre using a correctly-designed hand
  tool, you may be using it in such a way that
  youre still putting yourself at injury.
• Reducing injury risk well-designed tools
  proper tool use

4
Tool Design Checklist

• We begin by analyzing how each hand tool is
  designed, using the tool design/selection
  checklist (next page). This checklist
  incorporates generally-accepted ergonomic
  criteria for tool design. This checklist allows
  us to evaluate each hand tool and determine in
  what areas, if any, the tool does not meet these
  recognized criteria.
• We are going to utilize this design checklist to
  analyze four (4) different screwdrivers, and then
  the 945A, 5 pair presser.
• Once we have completed this segment, there should
  be time for you to evaluate three tools you have
  brought with you to this meeting.
• After you complete your analysis of the tools you
  brought along, think about how you might modify
  the tool to address the noted areas. If
  modification is not possible, what kind of tool
  would you select to replace that tool?

5
Here are the four screwdrivers well analyze
using the Tool Design/Selection Checklist.
From left to right, 1, 2, 3 and 4
6
Tool design checklist for Screwdriver 1
7
Tool design checklist for Screwdriver 2
8
Next, evaluate the third (3) and fourth (4)
screwdrivers using the checklists in the next two
slides.
From left to right, 1, 2, 3 and 4
9
Tool design checklist for Screwdriver 3
10
Tool design checklist for Screwdriver 4
11
945A, 5 pair presser
12
Tool design checklist for 945A, 5 pair presser
13
Using the results of the tool design/selection
checklist?

• After youve completed the tool design checklist
  and if you find the tool doesnt quite measure up
  to all the criteria, choose one of the following
  actions
• Modify the tool Usually this involves adding a
  compressible, non-conductive, non-slip gripping
  material.
• Find a substitute Maybe you already have a
  better tool in the shop or in your tool box. You
  can put green tape around those tools which pass
  inspection, yellow around those which are
  borderline, and red around those which should
  not be used.
• Replace it If so, you can use the completed
  checklist as documentation for your request.

14
The tool use checklist

• Now, we have to analyze how the tool is
  actually used. A well-designed tool can present
  a number of ergonomic risk factors if not used
  properly a poorly-designed tools risk factors
  can be increased by improper use and, sometimes,
  even proper use can reduce risk factors of a
  poorly designed tool.

15
The tool use checklist

• Use the tool use checklist to analyze how a tool
  is actually used in the field. Not all tools
  will be used exactly alike, not even by the same
  person. Somebody working above ground, on a pole
  or in a vault may use the same tool three
  entirely different ways.
• The tool use checklist is a good opportunity to
  educate workers about the risk factors generated
  by the way in which they use tools.
• All of the criteria in the tool use checklist
  come from generally-accepted ergonomic risk
  factor criteria. If you check Yes to any of
  the questions, you need to provide a detailed
  response in the right-hand column of the
  checklist. No such action is necessary for a
  No response.
• After presenting the tool use checklists, there
  are two slides one showing a field tech
  installing a pay phone and the other of a field
  tech working with a 945A, 5 pair presser. The
  checklists are also completed for you.

16

• The tool use checklist helps us to determine what
  risk factors are present when a particular tool
  is being used. Weve already analyzed the tool
  itself now we have to see how it is used and
  document the presence of risk factors.
• Heres a list of the risk factors we are looking
  for
• Winging
• Extended forearms
• Extended or flexed wrists
• Ulnar or radial deviation
• Palm pinch-grip
• Hands-wringing
• Trigger grip
• Wrists resting (contact stressor)
• Vibration

17
Tool use checklist

18
Tool use checklist Complete the tool use
checklist for the tech who is using a
screwdriver to install this pay phone.
19
Tool use checklist for installing pay phone with
screwdriver (see preceding slide)

20
Tool use checklist Complete the tool use
checklist for the tech who is using the 945A
presser to seat the module.
21
Tool use checklist for 945A, 5 pair presser(see
preceding slide)

22
Using the tool use checklist

• Use the checklist to coach your fellow members in
  how they are putting themselves at risk and what
  they can do to minimize the risks.
• Work to revise job practices and work methods so
  that they reflect MSD risk reduction practices
  described in this program. One example is to
  break up relatively risky tool use or other job
  tasks by taking a break or performing other less
  risky job tasks, or, simply by more frequently
  changing job posture.
• Tool redesign may be necessary--substitution,
  modification, or replacement.
• Changes in work layout may be necessary, using
  adjustable fixtures, templates, jigs, stools, or
  other set-ups might reduce the need to work with
  awkward postures.

23
Ergonomic Job Hazard Analysis Form

• Sometimes it isnt enough to simply analyze the
  design and/or the use of the tool. This happens
  when there are several distinct steps to using a
  particular tool, where the worker changes
  positions repeatedly, or where he/she does other
  work between different phases of using the same
  tool. Here, it is necessary to use an ergonomic
  job hazard analysis form.
• A sample form (next page) consists of three (3)
  columns
• Job element this is a specific job task, like
  stripping wires, moving parts into position,
  carrying a tool box, etc.
• Ergonomic risk factor this is a particular risk
  factor(s) associated with each job element, such
  as posture, repetition, force, or contact
  stressor.
• Corrective action this is a practical way to
  reduce or eliminate the risk factor identified in
  the second column.

24
Ergonomic Job Hazard Analysis Worksheet
25
Job Element Analysis
710 Splice Unit The first task is to list all
the job elements necessary to performing the
specific task in question and to place this
information in the far left-hand column. Review
this information carefully with the worker
first for accuracy and completeness. The next
series of slides illustrates each of the six job
elements.
26
Step 1. Place 25 pair bridge module into 710
splice unit.
27
Step 2. Position the cables next to the splicing
head and seat pairs into the module.
28
Step 3. When completed with 25 pair, grasp 710
splicer T-bar, and press down to cut pairs.
29
Step 4. Place top section of module into 710
unit, grasp splicer T-bar, and press down to seat
top section of module.
30
Step 5. Place module cap on top of seated
module, grasp T-bar, and press down to seal cap
in place.
31
Next, for each job element, identify the
ergonomic risk factors you observe. You can
use the tool use checklist to help.
32

• Step 1 Risk factors include
• Left- and right-hand pinch grip
• Wrists flexed

33

• Step 2 Risk factors include
• Left- and right-hand pinch grip
• Wrists flexed
• Wrists ulnar deviated

34

• Step 3 Risk factor includes
• Right wrist
• flexion

35

• Step 4 Risk factors include
• Left- and right-
• hand pinch grip
• Right wrist
• flexion

36

• Step 5 Risk factors include
• Left- and right-
• hand pinch grip
• Right wrist
• flexion

37
Next, for each ergonomic risk factor(s),
identify the potential cause of the risk factor.
This will be important when you start to
identify corrective actions. Finally, add in
the far right-hand column the recommended
corrective actions to address the potential cause
of each risk factor. It sometimes isnt
possible to address all risk factors.
38
(No Transcript)
39
CREDITS

• Photos
• Keith Brossard, CWA Local 7800,
• Gary Mullikin, CWA Local 4630,
• John Lund, School for Workers, University
  of Wisconsin
• Written and edited by
• John Lund, School for Workers, University
  of Wisconsin
• David LeGrande, CWA Occupational Safety and
  Health
• Director,
• Keith Brossard, CWA Local 7800, and
• Gary Mullikin, CWA Local 4630
• Executive Producer David LeGrande, CWA