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Spare Parts strategy, methodology and work plan Introduction

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1 Spare Parts strategy, methodology and work plan Introduction
L. Serio CERN

2 Spare Parts strategy, methodology and work plan
Scope: review the strategy, methodology and work plan to identify and implement the required spares and quantities for the LHC cryogenic system Agree on: what needs to be done and how to do it who does what and when Spares Strategy and Methodology/ 30-March-2015 L. Serio

3 Objectives Review and agree on:
Methodology for the identification of the required spares and quantities Criticality matrix PARETO analysis Methodology to review (existing) and identify (new) spare parts and quantities Existing spares usage, frequencies and transactions BOM Strategy to implement Collection and review of data Review and agreement on critical parts and quantities  Required thresholds to be implemented in the GMAO Implementation via the GMAO, EDMS Implementation work plan based on phased approach Existing information (spares transactions and usage), BOM according to maturity Implementation of qualitative and, when available, quantitative FMECA Spares Strategy and Methodology/ 30-March-2015 L. Serio

4 Methodology 1/3 Criticality of equipment and spare parts is usually established via A functional analysis of the system A FMECA analysis of the process A criticality analysis of the equipment and parts A continuous review of the criticality based on the frequency and number of spares used KPI: rotation periods of a part/component/equipment We have the disadvantage that there is no analysis or methodology implemented to define the spare parts and quantities, although we didn’t have any major problem On the contrary we have the advantage of having accumulated a significant experience (and data) and be able to extract an indicator that can provide already the overall criticality of spares as well as the quantities used based on their rotation Nevertheless these numbers could be biased by a wrong maintenance plan or type of corrective interventions Spares Strategy and Methodology/ 30-March-2015 L. Serio

5 Methodology 2/3 In order to be efficient and perform the work in a reasonable time it is proposed to perform a phased approach: A PARETO analysis of the rotation and quantities of spares based on the 80/20 rule on the quantities and rotation frequency Review of the identified spares and quantities via an established criticality criteria Confirmation or adjustment of the spares and quantities as well as benchmarking and adaptation of the criticality criteria and methodology Implement a regular review based on indicators of the rotation of spares to ensure the up to date information according to the life phase of the equipment (bathtub graph) Once the most critical spares are confirmed, identified, reviewed, the work can be completed with long term criticality analysis based on the Bill Of Material starting on the remaining equipment and parts Spares Strategy and Methodology/ 30-March-2015 L. Serio

6 Methodology 3/3 The analysis shall be based on a set of indicator (eventually weighted) to be collected to allow first the selection and secondly the prioritization according to the impact on the process and the budget available: E.g. frequency and quantities, impact, detectability, delay in procurement, cost) It can be progressively improved via the monitoring of the indicators and the execution of a comprehensive FMECA analysis for the overall optimization of the process, availability/reliability and cost Spares Strategy and Methodology/ 30-March-2015 L. Serio

7 Workplan Proposal of the methodology, strategy and workplan to achieve the objectives SERCO / acceptance CERN Adjustment of the criticality matrix and workplan SERCO Collection of the required data based on the agreed strategy Proposal for the review of the selected (PARETO) spares and quantities via the critical matrix Proposal for the new spares, quantities and thresholds based on the analysis as well as benchmarking the criticality matrix with the collected indicators Review of budget implication CERN Implementation in GMAO and EDMS (new quantities via contractual amendment) SERCO and CERN Review of the remaining spares based on the BOM with the same criticality matrix Spares Strategy and Methodology/ 30-March-2015 L. Serio

8 Agenda 14:00 – 14:05: introduction and scope – Luigi
14:05 – 14:35: methodology and workplan for the identification of the required spares and quantities for the cryogenic installations – SERCO 14:35 – 14:50 – Q&A - all 14:50 – 15:15: review and finalisation of the proposal - all 15:15 – 15:30: conclusion, next step and identification of stakeholders (authors, reviewers, informed, approver(s)) - Luigi Spares Strategy and Methodology/ 30-March-2015 L. Serio


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