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SOP templateEquipment Cleaning & Preventive Maintenance SOP (Template)
A ready-to-adapt template you can tailor to your laboratory. Complete the highlighted fields and validate before use.
Purpose
To keep histopathology equipment safe, clean and reliable through scheduled cleaning, reagent management, checks and calibration — reducing breakdowns and protecting slide quality.
Scope
Applies to routine cleaning and preventive maintenance of the tissue processor, embedding station, microtome, floatation bath, slide warmer and slide stainer. Complements the manufacturer manual and AMC/CMC.
Responsibility
- Histotechnician — performs daily/weekly cleaning and records it.
- Senior technician / biomedical engineer — performs periodic maintenance and coordinates service/calibration.
- Quality manager — approves this SOP and audits the maintenance records.
Equipment & materials
- Manufacturer user manuals and this schedule
- Approved cleaning agents, lint-free cloths, brushes and PPE
- Maintenance log and calibration/service records
Safety precautions
- Isolate power before internal cleaning; allow heated parts to cool.
- Handle solvents and blades safely; dispose of waste per local rules.
Procedure
Daily
- Wipe external surfaces and work areas; clear paraffin debris from the embedding station and microtome.
- Skim/clean the floatation-bath surface between blocks and check its temperature; check slide-warmer temperature.
- Check reagent levels and condition; filter hematoxylin where used.
Weekly
- Deeper clean of the stainer containers/baths and processor reagent area; empty waste as required.
- Inspect blades/holders, clamps and seals; replace consumables as needed.
- Rotate/replace processing and staining reagents per schedule. Rotation frequency: [lab to validate].
Monthly / periodic
- Verify temperatures against the manufacturer specification; arrange calibration where required.
- Confirm preventive-maintenance and calibration are current under AMC/CMC; log service visits.
Quality-control checkpoints
- Equipment runs without recurring alarms or breakdowns.
- Temperatures and reagents are within validated limits; records are complete.
Acceptance criteria
- Scheduled tasks completed and signed; calibration/service records current.
Common errors & corrective action
| Problem | Corrective action |
|---|---|
| Frequent breakdowns / downtime | Tighten preventive-maintenance discipline; book an AMC/CMC and calibration check; use genuine spares. |
| Temperature drift affecting quality | Verify and calibrate temperatures; check controllers and sensors. |
| Reagent-related defects | Enforce the reagent-rotation schedule with logs. |
Records & documentation
- Daily/weekly/monthly maintenance checklist (signed)
- Reagent-change log; calibration and service records
Review frequency
Review at least annually or after equipment changes or recurring faults.
Related equipment & guides
Author: Unimeditrek Technical Content Team · Reviewed by: Unimeditrek Biomedical Engineering & Histopathology Applications team · Last reviewed: July 2026.
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