TITLE:
Hall A Work Procedure
ISSUING
AUTHORITY
Hall A
Procedure for installing the Big Bite
electron detector assembly
AUTHOR
DATE
Folts
5/14/08
Modified
3/19/09
DOCUMENT ID
Page 1 of 5
A-08-044-P
1. Define the scope of work
Move the fully loaded Big Bite Electron detector from the floor of Hall A onto the Big
Bite support frame. This will be done in 3 stages. The first stage will be to rig and move the
detector package from the beam left side of the Hall to the beam right side on the downstream
side of the target between the spectrometers. The second stage is to re-rig the package in order to
remove the support legs that hold the detector in a vertical position and reposition the detector
plane to a 10 degree angle and mount it its 10 degree support brackets. The final stage is to lift
the detector onto the platform located on the big Bite spectrometer stand and secure it to the
stand.
2. Analyze Hazard
Task Hazard Analysis Worksheet
A-08-33-T
Complete all information. Use as many sheets as necessary.
Task location
Hall A
Task title Move BB detector to BB stand
Division
Physics
Prepared by Folts
Department
Hall A
Reviewed by
Supervisor
deJager
Approved by Folts
Standard Requirements:
(PPE, TOSPs, SOPs, etc.)
Task
Potential
Hazards
Risk Code
before
mitigation
Move BB detector to
BB stand
Load shift
2
ensure security of components
0
Drop load
3
Equipment specific training
Proper PPE, Crane training
1
Pinch bump
crush
3
Correct rigging,
Minimum elevation
Clear area of personnel and
equipment
Use steel toed shoes and safety
glasses
Use warning beacons and
guards when appropriate
Use hard hats when deemed
necessary
1
Safe
Procedures/Practices/Controls
Risk Code
after
mitigation
This document is controlled as an on line file. It may be printed but the print copy is not a controlled document. It
is the user’s responsibility to ensure that the document is the same revision as the current on line file. This copy
was printed on 2/17/2016.
TITLE:
Hall A Work Procedure
ISSUING
AUTHORITY
Hall A
Procedure for installing the Big Bite
electron detector assembly
AUTHOR
DATE
Folts
5/14/08
Modified
3/19/09
DOCUMENT ID
Page 2 of 5
A-08-044-P
3. Develop and implement Hazard controls
Read and follow lift plan
Be aware of the task hazards
Follow this procedure
4. Perform work within controls (follow procedure)

Summary of job
Move the fully loaded Big Bite Electron detector from the floor of Hall A onto the Big
Bite support frame. This will be done in 3 stages. The first stage will be to rig and move the
detector package from the beam left side of the Hall to the beam right side on the downstream
side of the target between the spectrometers. The second stage is to re-rig the package in order to
remove the support legs that hold the detector in a vertical position and reposition the detector
plane to a 10 degree angle and mount it its 10 degree support brackets. The final stage is to lift
the detector onto the platform located on the big Bite spectrometer stand and secure it to the
stand. The weight of the fully loaded electron package including lead glass, 2 wire chambers
Cerenkov and scintillators is XXXXXXXXXXX lbs but the weight can change depending on
what detectors are installed and should be weighed after each configuration change.

Affected systems
Crane
BB platform
BB detector

List of PPE
Hard hats
Safety shoes
Gloves
Harness of lift is used

Identify danger zones
Path of lift
Area around detector while changing supports
Area between detectors

Number of people needed
1 crane operator
This document is controlled as an on line file. It may be printed but the print copy is not a controlled document. It
is the user’s responsibility to ensure that the document is the same revision as the current on line file. This copy
was printed on 2/17/2016.
TITLE:
Hall A Work Procedure
ISSUING
AUTHORITY
Hall A
Procedure for installing the Big Bite
electron detector assembly
AUTHOR
DATE
Folts
5/14/08
Modified
3/19/09
DOCUMENT ID
Page 3 of 5
A-08-044-P
1 rigger
1 spotter

List of materials
10 degree supports
Hardware for supports
Tools to change hardware
Correct slings and rigging gear

Procedure
Place warning cones and turn on flashers
Perform pre job briefing noting hazards responsibilities and the plan of action.
Ensure that all cables and cords are removed from detector
Ensure that all sub assemblies of the detector are secure and supported
Rig the detector assembly for a level lift using 4-12 ft yellow slings at the
engineered lifting points
To lift assembly over spectrometer you must double the lings making their length
6 ft.
Install the vertical laser onto the top of the crane hook
Attach a tag line to the bottom support beam.
Lift the detector just enough to clear any floor obstructions and test the stability of
the load.
Move the detector to the side of the spectrometer and lift it to a level that will
clear the spectrometer and cryo lines.
Rotate the crane to a position that locates the detector in the clear space
downstream of the BB stand and lower it to the floor.
Stage equipment and materials needed for stage 2. (supports tools, hardware
ladders etc.
This document is controlled as an on line file. It may be printed but the print copy is not a controlled document. It
is the user’s responsibility to ensure that the document is the same revision as the current on line file. This copy
was printed on 2/17/2016.
TITLE:
Hall A Work Procedure
Procedure for installing the Big Bite
electron detector assembly
ISSUING
AUTHORITY
Hall A
AUTHOR
DATE
Folts
5/14/08
Modified
3/19/09
DOCUMENT ID
Page 4 of 5
A-08-044-P
Position dunage to support frame when legs are removed
Position support jack under lead glass detector
Remove bolts connecting frame to legs
Lift detector frame from legs and lower frame onto dunage
Attach the 10 degree support legs.
Extend the front 2 slings with 2 extra shackles to rig the detector to a 10 degree
nose down angle
Lift the detector from the dunage to the BB detector platform and secure with
clamps.
To remove reverse process

Post job briefing and cleanup
5. Provide feedback and continuous improvement. (Document any mistakes, corrections,
changes and pictures and implement changes.)
This document is controlled as an on line file. It may be printed but the print copy is not a controlled document. It
is the user’s responsibility to ensure that the document is the same revision as the current on line file. This copy
was printed on 2/17/2016.
TITLE:
Hall A Work Procedure
ISSUING
AUTHORITY
Hall A
Procedure for installing the Big Bite
electron detector assembly
AUTHOR
DATE
Folts
5/14/08
Modified
3/19/09
DOCUMENT ID
Page 5 of 5
A-08-044-P
This document is controlled as an on line file. It may be printed but the print copy is not a controlled document. It
is the user’s responsibility to ensure that the document is the same revision as the current on line file. This copy
was printed on 2/17/2016.