RISK STUDY ANALYSIS FOR PETAL INTEGRATION MountUnmount

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RISK STUDY ANALYSIS FOR PETAL INTEGRATION
(Mount/Unmount)
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RISK STUDY ANALYSIS FOR PETAL INTEGRATION

• The goals of this risk analysis are
• To find all potential problems during petal
  integration (Mount/Unmount)
• For each case, study a solution to improve the
  safety of process.
• To validate this solution or specific tools and
  to share this development between PICs.

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RISK STUDY ANALYSIS FOR PETAL INTEGRATION

• The potential problems list
• Unmounting modules Extraction force, thermal
  lubricate sticking, falling screw, distance plate
  sticking, modules maintains.
• Cleaning modules thermal lubricate cleaning,
  Modules maintains
• Unmount and cleaning center liners and others
  parts unmount center liner, thermal lubricate
  cleaning, arrangement logistic.
• AOHs changement Scenario
• Risk analysis report http//gfffhkjfhsdkf

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RISK STUDY ANALYSISForce extraction Tests

• One important problem
• Could be the sticking
• Force due to thermal
• Lubricate on module.
• We decided to measure
• This force value is 5 cases
• After heating
• After cooling
• After free air 10 mn
• After free air 2 days
• After dry air 2 days

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RISK STUDY ANALYSISForce extraction Tests
Best case After 2 days under dry air (less than
all others mean 68gr)
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RISK STUDY ANALYSISTOOLS FOR DYNA SCREW
Manipulation of little Screws during mount Or
unmount. Specific tool developed Directly
assembled on Dynanometer screw Driver.

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RISK STUDY ANALYSISDISTANCE PLATE STICKING




Plastic plate
Move module
Unmount module
Move module above Plastic plate
Warning distance plate
distance plate sticking
Petal Frame Plastic Protection Scenario


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RISK STUDY ANALYSISSPECIFIC TOOLS MOUNT/UNMOUNT
Our experience Proved that Specific tool
for Module integration Or extraction is More
safety We propose to Use it for each Ring.
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RISK STUDY ANALYSISSpecific Module Support for
Cleaning
After module Extraction, in order To clean
module In safety condition We have to place This
module on Specific support Plate with
little Modification This for each ring.
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RISK STUDY ANALYSISSpecific Module Support for
Cleaning
For both face The cleaning With cotton Stem and
Polypropanol Would be without Any pressure
on Module.
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RISK STUDY ANALYSISUNMOUNT center liner

• Unmounting center liner
• Take a big screw and to screw until the end
• After center liner go to up

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RISK STUDY ANALYSISCleaning mechanics parts
All different mechanical Parts and center
liners Would be cleaning In each box inside a
Ultrasonic cleaner during 25 mn at ambiant temp.
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RISK STUDY ANALYSIS FOR PETAL INTEGRATION

• Preliminary conclusions
• This study shows that we can decrease risk on
  module during mount or unmount scenario.
• The time estimate to complete unmount a petal is
  3 Days, in order to extract, to clean, to stock
  and be ready for a new petal integration.

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RISK STUDY ANALYSIS FOR PETAL INTEGRATION

• Preliminary conclusions
• To mount
• Specific tool maintaining for module integration.
• Plastic petal frame protection
• Adapter dyna screw driver
• To unmount
• Same points
• Ultrasonic cleaner using
• Dry air stockage before unmount.