Calculator
Preventive Maintenance Manpower Calculator
Estimate monthly PM manpower from asset count, PM frequency, average PM time, and available technician hours.
Calculator Inputs
Legend
Preventive Maintenance Manpower Calculator guidance
Monthly PM hours = assets x PM events per year x hours per PM / 12. Technicians required = monthly PM hours / monthly productive hours per technician.
Input meaning
- Asset count: enter the measured, quoted, or hospital-approved value.
- PM events per asset per year: enter the measured, quoted, or hospital-approved value.
- Average time per PM: enter the measured, quoted, or hospital-approved value in hours.
- Monthly productive hours per technician: enter the measured, quoted, or hospital-approved value.
Result interpretation
- Use the result as a planning estimate, not as a final approval by itself.
- Record the assumptions used so Procurement, Biomedical, Facilities, Finance, and vendors can review the same basis.
Assumptions
- Separate high-risk equipment from low-risk equipment for detailed planning.
- Include travel, documentation, calibration, spare-part delays, and user coordination in final manpower planning.
Biomedical use
- Use this calculator during RFQ preparation, technical evaluation, acceptance planning, service review, or biomedical workload planning.
How to identify the required values
Use these examples and common working ranges to choose values from gauges, labels, manuals, datasheets, RFQs, service reports, CMMS records, or hospital planning assumptions.
| Field | Example value | Common range | Tip |
|---|---|---|---|
| Asset count | Example: 500. | Use active maintainable assets, not retired or duplicate registry records. | Use active maintainable assets only. |
| PM events per asset per year | Example: 2. | Many devices are annual or semiannual; high-risk equipment may need more frequent checks. | Use the PM frequency defined in the risk-based maintenance plan. |
| Average time per PM | Example: 0.5 hours. | Simple devices may take 0.25-0.75 h; complex systems may take several hours. | Use actual technician time including setup and documentation. |
| Monthly productive hours per technician | Example: 120. | Common productive range is 100-140 h/month per technician after leave/admin. | Use realistic productive hours, not full payroll hours. |
Common ranges are starting points for hospital planning. For final procurement, acceptance testing, electrical design, medical gas design, radiation shielding, dialysis water systems, or clinical use, replace the example values with site-specific data and vendor-confirmed figures.
Input Checklist
Confirm these values before relying on the output for procurement, PM, or service planning.
- Asset count
- PM events per year
- Hours per PM
- Monthly productive hours
Safety And Engineering Notes
Use calculator outputs as planning estimates and verify critical systems with calibrated measurement or qualified engineering review.
- Separate high-risk equipment from low-risk equipment for detailed planning.
- Include travel, documentation, calibration, spare-part delays, and user coordination in final manpower planning.
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