JOB HAZARD ANALYSIS (JHA) JHA Preparation Instructions: JHAs are to be prepared by the Supervisor or Group Manager in charge of the work, with work group member participation. The goal of preparing a JHA is for those responsible for or performing any work to review the risks and possible complications of that work and to consider ways of mitigating those risks and complications. A JHA shall be completed for all work executed. The JHA## is to be incremented when a procedure requires more than one JHA form. Standing should be marked if job or task is performed regularly and work group members are always the same individuals. Supervisors are responsible for getting the work group members sign off completed and a copy sent to the safety officer for each JHA. JHA Change Instructions: If changes to the content of this JHA are required, follow the KPNO ETS Engineering Change Process. The master copy of the document must be checked out of the Document Vault, an Engineering Change form must be completed, and the Revision Table (see last page) must be updated. Note that periodic reviews of this JHA that do not result in content changes require only entry of the review date and the name of the reviewer in the Revision Table; the document revision should not be advanced in this case. Tammie Lavoie 26 July 2016 Tammie Lavoie, Safety Manager Date JHA Number: Rev: Standing: X Date Completed: 6/9/2016 Title of Job or Task: 4 Meter Cass Cage Installation Location/Facility: KPNO 4 Meter Supervisor or Person Completing this JHA: Person(s) Assisting with this JHA: Hillary Mathis Bill McCollam Recommended Personal Protective Equipment (PPE): select area above line to make entry Head Protection Eye Protection Hand and body Protection Fall Protection X Foot Protection X Hearing Protection Respiratory Protection Special PPE: Notes: *Hard hats must be used whenever someone is working above you or at your head height, or when working with suspended loads. ** Safety Shoes are mandatory in the area during construction, maintenance, heavy or complex work. Equipment or tools needed to perform the job: tab or select to make entry in next location, only use if not listed in procedure. Personal Safety Harnesses 2 9 foot SRLs 2 20 foot SRLs 2 fall arrest cross arm straps 4 METER CASS CAGE INSTALLATION Page 1 of 5
DATE: 2016 07 26 HAZARD ANALYSIS Hazard Analysis Instructions: Complete the table below with the basic job steps, stating the hazards present and safe procedures or precautions to control the hazards for each step. Tab will move to next column; to add rows place cursor outside table on the right, and press ENTER. Basic Job Steps: Review the activity and divide it into basic steps. Hazards Present in Each Job Step: Identify the hazards or the possible danger present for each basic job step. Correct and Safe Procedures and Precautions: Decide what actions or procedures are necessary to control and minimize the hazards present. Things to consider: Use designations in the Hazards Present column: Do employees know how to do the job? CB Caught Between SA Struck Against What are the hazards? Include people and equipment. CBY Contacted By SB Struck By How can injuries or accidents occur? CI Caught In SL Suspended Load How can injuries or accidents be prevented? CO Caught On TH Trip Hazard Are there obvious unsafe conditions? Are special tools needed? Do people need personal protective equipment? How would we rescue people if something went wrong? Do we have the equipment to rescue? CW Contact With E Exposure to Chemicals, Noise, Vibration, Radiation EL Electrical ER Ergonomics FB Fall to Below FH Fire Hazard HS Heat stress R Repetitive Motion Item No. BASIC JOB STEPS HAZARDS PRESENT IN EACH JOB STEP CORRECT AND SAFE PROCEDURES AND PRECAUTIONS 1 Clip in to 20 SRLs CO USE FALL PROTECTION 2 Raise Lift FB, SA, CW, CO Stay away from lift edges Make sure equipment is clear of lift edges Release up button when cage bottom gets within 12 to 18 inches of cage Small lift bumps with cage bottom within 1 foot of cage Stay clear of cage ramp 4 METER CASS CAGE INSTALLATION Page 2 of 5
Item No. BASIC JOB STEPS HAZARDS PRESENT IN EACH JOB STEP CORRECT AND SAFE PROCEDURES AND PRECAUTIONS Ensure cage pins are aligned properly with cage bottom 3 Unclip from 20 SRLs, clip in to 9 SRLs CO 4 Align cage bottom with guide pins SA 5 Unclip from 9 SRLs CO 6 Lower lift CO 7 Move ramp west CO Switch to SRLs with access to the exterior of the cage Failure to line up the pins properly will cause the cage bottom to jam on the pins The 9 SRLs are not long enough to allow workers to stay attached and take the lift all the way down Lower lift slowly until 100% sure cart is free Watch ramp to make sure it doesn t bind on the track 8 Pull the net out CI, TH Make sure not to trip on the net 9 Attach safety straps to net CO 10 Unhook the 20 SRLs from inside the cage CO, SA 11 Unhook the 9 SRLs FB The net straps are not strong enough to hold the weight of the net by themselves. The net will sag over time without the safety straps Be careful of wires fed along upper side of cell Beware of low head clearance Leaning too far out could cause a fall to the net below 12 Remove Lockout/Tagout (LOTO) from the RUPS Breaker, Turn on RA and Dec breakers CB, CBY, CI, CO, FB, SA, SB Failure to turn off breakers may result in unwanted telescope movement by other personnel unaware of instrument change 13 14 4 METER CASS CAGE INSTALLATION Page 3 of 5
REVISION TABLE Rev Date Approved Remarks and/or Change Details Reason for Change Name.01 Feb. 17, 2015 Initiated.02 11/20/15 Update to latest form 1.4 Dee Stover - June 2016 Updates to match procedure from EM Bill McCollam 4 METER CASS CAGE INSTALLATION Page 4 of 5
WORK GROUP MEMBERS FOR THIS JHA N NAME (print) SIGNATURE DATE 1 2 3 4 5 6 7 8 9 10 SUPERVISOR IN CHARGE N NAME SIGNATURE DATE 1 4 METER CASS CAGE INSTALLATION Page 5 of 5