Knowella

Quarterly PM Checklist

The recurring failure here is not skipping a step, it is reassembly drift: an asset gets stripped, wear parts get replaced, and the reassembly checks — torque, function test, calibration cross-check — get rushed because production is waiting on the line. A strip-down that finds nothing wrong internally but is bolted back together loosely or out of alignment fails weeks later for a reason the checklist itself never flagged.

KnowMaintainChecklistMNT-025Pinned in navigation50 fields across 6 sectionsFull researchSee the form

Reviewed by Siddarth SinghCSPLast reviewed 16 August 2026

Basis
ISO 55001 cl.8.2
Workspace
KnowMaintain
Form type
Checklist
Review trigger
Quarterly, scheduled with a production stoppage window
Completed by
Technician, countersigned by the area owner

The short version

  • It is a quarterly checklist for strip-down maintenance: internal wear, corrosion, springs, pneumatics, hydraulics, instrument calibration and formal reassembly, run against ISO 55001 cl.8.2 as part of Planned Maintenance.
  • It is the only PM tier in this ladder with a dedicated Restoration section, which exists because this is the only tier that takes the asset apart in the first place.
  • Scoring is complete with knockout items and high is good, and Function Tested carries the same zero-tolerance weight as any strip-down finding — a reassembled asset that hasn't been function tested is not verified fit for service.
  • It links to the Asset register and the PM Plan, and 'wear parts replaced before they fail' is the outcome the description promises — which only holds if Internal Wear Assessed is answered honestly rather than as a formality before the parts swap.

What this is

What is a quarterly PM checklist?

What is a quarterly PM checklist?

It is the strip-down tier of planned maintenance, run when the asset can be stopped long enough to open it up. It covers internal wear, corrosion, springs, pneumatics and hydraulics, instrument calibration, and a formal reassembly and function test — none of which the daily, weekly or monthly tiers attempt.

Why does it require the asset to be stopped?

The checks are internal: wear on components not visible from outside, cleanliness inside housings, and reassembly to a torque and alignment specification. None of that can be done with the asset running, which is why the template is explicitly coordinated with production rather than run opportunistically.

What makes reassembly a distinct risk on this checklist?

Every other PM tier ends when the checks are done. This one ends when the asset has been taken apart and put back together, so a fault introduced during reassembly — under-torqued fasteners, a function test skipped to save time — is a risk this specific checklist creates that the others don't.

Scope

When is a quarterly pm checklist required?

This checklist is for planned, coordinated strip-down work. Reaching for it outside that window — or using it as a substitute for the checks a lighter tier already covers — breaks the PM ladder's logic.

Use this template when

  • The asset is due its quarterly cycle under the linked PM Plan, with a production stoppage arranged
  • Wear parts identified at a prior tier need replacing before the next run cycle
  • Internal components — bearings housings, seals, pneumatic or hydraulic assemblies — need opening up to inspect
  • An instrument on the asset is due its calibration cross-check
  • A prior monthly or weekly finding flagged internal wear that only a strip-down can confirm

Do not use it for

  • Monthly PM Checklist, which covers external inspection, filter changes and fastener torque without opening the asset up.
  • Weekly PM Checklist, which is a walk-round: cleaning, belt and chain checks, minor adjustments.
  • Meter Based PM Record, which triggers on runtime or cycle count rather than a fixed quarter.
  • Preventive Maintenance Plan, which sets the interval and scope this checklist executes, rather than recording the work itself.
  • Corrective Work Order, which is for unplanned repair, not the scheduled strip-down this checklist documents.

Compliance mapping

Which ISO 55001 cl.8.2 requirements does this satisfy?

ISO 55001 cl.8.2's controlled-change intent applies most directly here, because a strip-down is itself a temporary change to the asset's state that has to be closed out under control before the asset returns to service.

ClauseRequirementWhere it lands
ISO 55001 cl.8.1 (Operational planning and control)Internal condition is assessed against a documented standard rather than left to the technician's on-the-day judgementStrip down checks
ISO 55001 cl.9.1 (Monitoring, measurement, analysis and evaluation)Instruments used to monitor the asset are themselves verified accurate at a defined intervalInstrumentation
ISO 55001 cl.8.2 (Management of change)A change made to the asset's physical state — disassembly — is closed out under a controlled, verified restoration step before return to serviceRestoration
ISO 55001 cl.8.2Deviations found during the strip-down are captured and routed to controlled correction rather than patched informallyFindings
ISO 55001 cl.8.1The asset's fitness for continued service is a distinct, recorded decision made after reassembly, not inferred from task completionResult
ISO 55001 cl.7.5 (Information requirements)Each record identifies the asset, the plan it discharges and the person accountable for the reassemblyHeader

What it does not cover

  • Function Tested, which is a single Yes/No choice with no field for run duration or load condition, so a five-second test and a full production-rate run score identically.
  • Reason If Late, which only appears once the quarterly window is already missed, so a production stoppage that keeps slipping is never surfaced as a pattern until it's overdue.
  • Torque Applied, which records Pass or Fail with no space to note the actual torque value achieved, so a reassembly dispute later has nothing to check it against.
  • Corrective Work Order ID, which stays blank whenever a Restoration or Strip down finding is corrected in the same visit, so the parts and time spent never surface in cost or backlog reporting.
  • Second Signature from the area owner, which is required but is typically applied the moment the asset is declared fit for service, before there has been any running time to confirm the reassembly actually held.

Global

Quarterly PM Checklist requirements by country

A strip-down carries its own regulatory weight wherever the asset is safety-critical or food-contact, and the three regimes below treat the reassembly step differently.

United Kingdom

Provision and Use of Work Equipment Regulations 1998 (PUWER), reg. 5

Work equipment must be maintained in an efficient state, in efficient working order and in good repair

A strip-down that is not properly closed out — under-torqued, function test skipped — puts the equipment back into service in a state PUWER does not consider maintained, regardless of what the checklist says.

European Union

Machinery Directive 2006/42/EC, essential health and safety requirements

Machinery must remain safe throughout its service life, which assumes maintenance restores rather than degrades its original safety state

Reassembly to specification is not a formality for CE-marked equipment; a maintenance intervention that changes clearances, guarding fit or fastening integrity can itself create non-conformity with the original design.

United States

OSHA 29 CFR 1910.147 (Control of Hazardous Energy) and general duty clause

Equipment returned to service after maintenance must be verified safe before energy is restored and guards reinstated

Function Tested and Reassembled To Specification are the record that this verification happened; without a documented function test, restart after lockout has no supporting evidence trail.

How to complete it

How to complete a quarterly pm checklist, step by step

The individual checks are unambiguous. Four judgement calls decide whether the reassembly they lead to is actually defensible.

What 'function tested' was actually tested

A Yes on Function Tested could mean a full-load production run or a five-second jog under no load. The field doesn't distinguish, so the standard has to be set and enforced outside the form — otherwise a rushed check and a thorough one are recorded identically.

Whether torque was applied or just checked

Torque Applied scores Pass/Fail with no recorded value. Whether the technician used a calibrated torque wrench to a stated spec, or tightened by feel and called it a Pass, is invisible in the record — and it's the difference that matters if the fastener works loose later.

How much running time counts as 'restored'

Second Signature and Equipment Fit For Service are often applied the moment reassembly finishes, with no observed running time. A reassembly fault — misalignment, a seal not seated — frequently only shows up once the asset has run under load for a period, which the sign-off timing doesn't allow for.

Whether N/A on a strip-down item is componentry or convenience

Springs, pneumatics and hydraulics items carry N/A for assets that genuinely lack that componentry. Used instead to skip a component that would have needed more time to strip and inspect properly, it understates what the quarterly visit actually covered.

What auditors find

Most common quarterly pm checklist findings

These six issues account for most of the gap between a completed quarterly checklist and a genuinely verified reassembly.

FindingClauseWhat fixes it
Function Tested is answered Yes with no load or duration standard appliedOSHA 29 CFR 1910.147 / ISO 55001 cl.8.1Define a minimum test duration and load condition per asset class in the linked PM Plan, and reference it from the field's help text.
Torque Applied is Pass with no recorded torque value against specMachinery Directive 2006/42/EC EHSRsAdd a numeric torque value field alongside the Pass/Fail choice for any fastener identified as safety-critical in the Asset record.
Second signature and fit-for-service declared before any observed running timePUWER 1998 reg. 5Require a minimum post-reassembly run interval, or an explicit override reason, before Equipment Fit For Service can be marked Yes.
A Strip down checks Fail is corrected during the same visit with no Corrective Work Order IDISO 55001 cl.8.2Require a Corrective Work Order ID for any Fail regardless of whether it was resolved before the asset was closed up again.
N/A used on Springs And Dampers, Pneumatic Cylinders or Hydraulic Components with no reason recordedISO 55001 cl.8.1Add a mandatory short reason field triggered whenever N/A is selected on a strip-down componentry item.
Calibration In Date scored Pass with no certificate or due-date reference capturedISO 55001 cl.9.1Link the calibration check to the instrument's own record so the due date is verified against a source, not the technician's recollection.

Case in point

Case in point: a strip-down that passed everything except the part nobody scored

A packing line gearbox strip-down came back clean: internal wear assessed as Pass, corrosion Pass, seals and dampers Pass. The quarterly checklist scored 100% on the Strip down checks section, and Torque Applied and Function Tested were both marked Pass in the Restoration section within the same ten-minute window the asset was declared fit for service.

Three weeks later the gearbox failed on a loosened mounting fastener — the same fastener recorded as 'torque applied, Pass' with no value logged. Nothing in the completed checklist distinguished that reassembly from a properly torqued one, because the field never asked for the number that would have shown the difference.

The template

The template, field by field

The form exactly as it installs. Every field, option, score and conditional rule is editable, and the links to other templates come with it.

50fields
6 sections
Reference
MNT-025
Archetype
Checklist
Record ID
PM-2026-000
Scoring
Complete with knockout items
Direction
High is good
Singleton
No
Basis
ISO 55001 cl.8.2
Links
Links Asset, PM Plan
Tags
Maintenance, Preventive
Sections
6
Fields
50
Follow up fields
10
Repeating sections
1
Links out
5
Field typesOwn ID, generated on saveCase thread and parentPick list from a registryLinked to another templateFollow up, dashed outlineScored

Header

16 fields
Text

PM ID*

Generated on save

Auto sequence. Format PM-2026-00000.

The record's own ID. Other templates point at this value.

Single Choice

Status*

Scored

Drives who this goes to next.

  • Planned2 pts
  • In progress2 pts
  • Complete3 pts
  • Deferred0 pts
  • Open0 pts
  • Closed3 pts
  • Overdue0 pts
Date & Time

Date and Time*

Users

Raised By*

Pick List

Site*

From FDN-001 Site NameFilter: Status is Active
Text

Site ID*

Linked

Format SITE-000.

Links to FDN-001 Site ID

Single Choice

Area

Optional

The area within the site.

Cutting roomBoning hallPackingChill storeFreezerPasteurisingFillingCulture roomDespatchYardWorkshopPlant roomOffices
Location

Exact Location

Optional

Drop a pin for anything hard to find.

Pick List

Asset*

From FDN-002 Asset NameFilter: Site matches, Status is Active
Text

Asset ID*

Linked

Format AST-0000.

Links to FDN-002 Asset ID

Text

PM Plan ID

OptionalLinked

Links to MNT-021 Plan ID

Text

Work Order ID

OptionalLinked

Links to MNT-002 Work Order ID

Date & Time

Due Date*

Single Choice

Completed On Time*

Scored
  • Yes3 pts
  • Late1 pt
  • Not completed0 pts
Numeric Answer

Days Late

OptionalShows if Completed On Time not equals Yes
Single Choice

Reason If Late

OptionalShows if Completed On Time not equals Yes
No production windowLabour shortagePartsPermitForgottenDeliberately deferred

Strip down checks

6 fields
Single Choice

Internal Wear Assessed*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Internal Cleanliness*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Corrosion Assessed*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Springs And Dampers*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Pneumatic Cylinders*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Hydraulic Components*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator

Instrumentation

3 fields
Single Choice

Sensors Clean And Secure*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Calibration In Date*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Readings Cross Checked*

Scored
  • Yes2 pts
  • No0 pts
  • N/Aexcluded from denominator

Restoration

3 fields
Single Choice

Reassembled To Specification*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Torque Applied*

Scored
  • Pass2 pts
  • Partial1 pt
  • Fail0 pts
  • N/Aexcluded from denominator
Single Choice

Function Tested*

Scored
  • Yes3 pts
  • Not applicable3 pts
  • No0 pts

Findings

Repeats7 fields
Single Choice

Result*

Scored
  • Pass3 pts
  • Pass with conditions2 pts
  • Fail0 pts
Single Choice

Severity

OptionalScoredShows if Result equals Fail
  • Minor3 pts
  • Moderate1 pt
  • Serious0 pts
Single Choice

Element Tag

OptionalShows if Result equals Fail

Groups deficiencies by hazard type across every template.

Hazard identificationPPEHousekeepingEnergy isolationMachine guardingErgonomicsChemicalElectricalWorking at heightConfined spaceMobile equipment
Text

Deficiency Detail

OptionalShows if Result equals Fail
File Upload

Photo Evidence

OptionalShows if Result equals Fail
Single Choice

Fixed On The Spot

OptionalShows if Result equals Fail
YesNo
Text

Finding ID

OptionalLinkedShows if Fixed On The Spot equals No

Raise a finding record where this needs tracking to closure.

Links to FDN-015 Finding ID

Result

15 fields
Numeric Answer

Items Assessed*

Excludes anything marked N/A.

Numeric Answer

Items Failed*

Numeric Answer

Score Percent*

Scored

Calculated on submission. High is good. N/A items leave the denominator.

Single Choice

Result Band*

Scored
  • Pass3 pts
  • Caution1 pt
  • Fail0 pts
Numeric Answer

Completeness Percent*

How much of the template was actually answered. A high score on a half completed form is not a high score.

Single Choice

Any Task Not Completed*

Scored
  • No3 pts
  • Yes0 pts
Text

Reason Not Completed

OptionalShows if Any Task Not Completed equals Yes
Single Choice

Corrective Work Required*

Scored
  • No3 pts
  • Yes1 pt
Text

Corrective Work Order ID

OptionalLinkedShows if Corrective Work Required equals Yes

Links to MNT-002 Work Order ID

Single Choice

Equipment Fit For Service*

Scored
  • Yes3 pts
  • With restrictions1 pt
  • No0 pts
Date & Time

Next Due*

Users

Technician*

Signature

Signature*

Users

Area Owner*

Signature

Second Signature*

MNT-025 · record IDs look like PM-2026-000 · Links Asset, PM Plan

Open in Knowella

Run it with agents

From a document you fill in to a programme that runs itself

The strip-down itself gets full attention because it's the visible, hands-on work. Verifying the reassembly, chasing the torque value that was never logged, and closing findings to a Corrective Work Order is what actually determines whether the record can be trusted.

KnowMaintain

Ties every quarterly strip-down to its Asset and PM Plan record, and flags when Torque Applied or Function Tested is marked Pass with no supporting value or run-time evidence.

KnowSafe

Picks up Restoration and Strip down checks Fails on safety-critical assets and routes them into lockout-restart verification, rather than letting a rushed function test close the loop on its own.

KnowLogistics

Reconciles wear parts consumed during the strip-down against the Spare Parts Register, so 'wear parts replaced before they fail' shows up in stock and cost data, not just the checklist.

Ella
Ella

Coordinates the production stoppage window against the PM Plan, chases the second signature after a minimum run interval, and holds every write for your approval before it touches a record.

This template lives in KnowMaintain — asset maintenance. Work orders, planned maintenance, calibration, reliability and shutdowns.

Meet KnowMaintain→

Glossary

Quarterly PM Checklist definitions and key terms

Strip-down
Maintenance that involves partially or fully disassembling an asset to inspect components not visible or accessible while it is running.
Restoration
The set of checks confirming an asset has been correctly reassembled and returned to a verified working condition after a strip-down, distinct from the inspection findings themselves.
Function test
Running an asset after maintenance to confirm it operates correctly before being handed back to production, ideally under a stated load and duration.
Calibration
Verifying an instrument's readings against a known reference standard, so its measurements can be trusted for condition monitoring or process control.
Fit for service
A distinct go/no-go judgement that an asset can safely return to production, made after — not instead of — the individual restoration checks.

FAQ

Frequently asked questions about quarterly pm checklist

Why does the quarterly checklist need production coordination when the others don't?+

It involves stopping and opening the asset up, which the daily, weekly and monthly tiers don't do. That requires a scheduled window agreed with production, rather than being run opportunistically during a normal shift.

What is the Restoration section checking that Strip down checks doesn't?+

Strip down checks assess the internal condition found on opening the asset up. Restoration assesses whether it was then put back together correctly — torque, alignment and a function test — which is a separate risk this checklist creates by taking the asset apart in the first place.

Does a Pass on Function Tested guarantee the reassembly was sound?+

Not on its own. The field is a single Yes/No with no recorded load or duration, so a brief no-load check and a full production-rate run score identically. Treat a bare Pass as necessary but not sufficient evidence.

What should happen if a Strip down checks item Fails?+

It should route to a Finding with severity and photo evidence, and if it isn't corrected in the same visit, it needs a Corrective Work Order ID. Fixing it quietly during reassembly with no Finding recorded loses the evidence that a defect was ever found.

Why does Torque Applied not record an actual torque value?+

It doesn't by design in the base template — it's a Pass/Fail choice. For safety-critical fasteners this is a gap worth closing by adding a numeric field, since a disputed reassembly later has nothing but the technician's word to check against.

How does this checklist relate to the PM Plan and Asset register?+

Site, Asset and PM Plan ID are linked fields drawn from the Asset register and Preventive Maintenance Plan, tying each quarterly strip-down to the schedule and the specific asset it was carried out against.

Keep going

Related templates and programmes

Siddarth Singh

Written and reviewed by

Siddarth Singh

Founder & Chief Executive Officer, Knowella

Certified Safety Professional and industrial and systems engineer with more than a decade inside food supply chain, freight and manufacturing operations. This page was written against the current text of the standards it cites, not against secondary summaries of them.

  • Certified Safety Professional (CSP), Board of Certified Safety Professionals
  • MBA, University of Chicago Booth School of Business
  • MS and BS, The Ohio State University, Industrial and Systems Engineering
  • Six Sigma Black Belt
Verify with BCSP →

Sources and last review. Reviewed 16 August 2026 against:

  • ISO 55001:2014 cl.7.5, 8.1, 8.2, 9.1 — Asset management systems
  • Provision and Use of Work Equipment Regulations 1998 (PUWER), regulation 5
  • Machinery Directive 2006/42/EC — essential health and safety requirements
  • OSHA 29 CFR 1910.147 — Control of Hazardous Energy (Lockout/Tagout)

This page is general guidance, not legal advice. Confirm requirements with your jurisdiction’s regulator.

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