What this checks
Expected repairs divide installed base, failure rate, repairable share, and seasonality by twelve. Planning quantity adds safety stock and lead-time cover. Utilisation above one marks backlog risk.
Capacity
Spare parts and repair capacity
Plan monthly repairs, parts demand, and utilisation. This is not a legally required stock level.
How to read the result
Plan monthly repairs, parts demand, and utilisation. This is not a legally required stock level.
Expected repairs divide installed base, failure rate, repairable share, and seasonality by twelve. Planning quantity adds safety stock and lead-time cover. Utilisation above one marks backlog risk.
Operational planning only. Do not read the quantity as a statutory spare-part obligation.
Plan monthly repairs, parts demand, and utilisation. This is not a legally required stock level.
Expected repairs divide installed base, failure rate, repairable share, and seasonality by twelve. Planning quantity adds safety stock and lead-time cover. Utilisation above one marks backlog risk.
Operational planning only. Do not read the quantity as a statutory spare-part obligation.
Questions
Long lead time
Lead time raises the planning quantity and is reported as exposure in days. It does not create a legal stock duty.
Capacity overload
If monthly repairs exceed daily capacity times working days, backlog risk is yes.
Zero installed base
Zero installed goods produce zero expected repairs and zero parts demand.
Seasonality
A factor above one lifts the monthly expectation. It is a planning multiplier, not a legal threshold.