Leading With Data· a Bicycle Guide
Guide highlights

Achieve a highly productive, proactive maintenance organization with 'wrench time' consistently above 50%. Effectively double your workforce's output without hiring more people, leading to cleared backlogs and reduced costs.

  • Adopt the six core principles of Maintenance Planning.
  • Implement the six core principles of Maintenance Scheduling.
  • Follow the step-by-step processes for basic planning, advance scheduling, and daily supervision.

Book profile

Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

One book, placed in its field — what Richard Palmer's book gets right, where it goes further than the rest, and what the rest of the field adds.

Edited by Mike West

Choose a reading path or an exercise

Suggested sections

Choose a starting point below. Each link opens a section of this guide.

Do this now — Work Order System

  1. Require a work order number for every job, emergencies included, and allow retroactive entry within one shift for true breakdowns.
  2. Define who may request, who approves, and what priority codes mean, then publish the one-page flow.
  3. Make closeout mandatory: actual hours, craft, failure cause, and parts used before the order can be closed.
  4. Review the backlog weekly in terms of weeks of work by craft so the planner sees demand clearly.

Then continue in Work Order System.

Edition 1·Updated 2026-10-03·19 min read

Sources

About this book

An overview of the book, with source information for further reading.

A practical handbook detailing a system of maintenance planning and scheduling principles that dramatically boosts labor productivity, increases plant reliability, and transforms maintenance from a reactive cost center into a proactive competitive advantage.

More on this book

This handbook reveals that the average maintenance technician spends less than 35% of their time on productive work—a massive hidden cost in any industrial operation. Author Doc Palmer, a seasoned maintenance professional, provides a clear, step-by-step system to reclaim this lost time by implementing a formal planning and scheduling function. The book lays out twelve foundational principles that enable a small planning group to nearly double the effective output of a maintenance workforce, akin to turning a 30-person crew into a 47-person effective force. It moves beyond abstract theory to provide practical 'how-to' guidance, sample forms, and real-world examples to help managers, supervisors, and planners implement a system that reduces delays, improves work quality, and increases plant capacity, turning maintenance into a profit-driving powerhouse.

Movement I

Orient

In this part

What this book claims, and who wrote it.

  • — The book's one-line promise
  • — The author and where the book stands

A practical handbook detailing a system of maintenance planning and scheduling principles that dramatically boosts labor productivity, increases plant reliability, and transforms maintenance from a reactive cost center into a proactive competitive advantage.

The need-to-know

Workforce productivity ('wrench time') in organizations without formal planning is shockingly low (25-35%), representing a massive opportunity for improvement. Effective planning and scheduling can increase wrench time to 50-55%, nearly doubling the productive output of the maintenance workforce. Planning is primarily a coordination and control function that enables scheduling by providing job scopes, craft requirements, and time estimates; it is not about creating perfect, detailed plans from scratch.

About this guide

The guide describes these challenges, steps and possible outcomes.

Who it is for

Maintenance managers, supervisors, and plant engineers who want to improve productivity, reduce costs, and increase plant reliability, but are stuck in a reactive, inefficient maintenance cycle.

Challenges

  • In practice · The maintenance workforce has low productivity ('wrench time' of 25-35%), leading to equipment breakdowns, large work backlogs, high costs, and lost production capacity.
  • For the reader · Feeling frustrated, out of control, and unable to move from 'firefighting' to proactive maintenance, despite the crew always being busy and working hard.

Steps to consider

  1. 1Adopt the six core principles of Maintenance Planning.
  2. 2Implement the six core principles of Maintenance Scheduling.
  3. 3Follow the step-by-step processes for basic planning, advance scheduling, and daily supervision.
  4. 4Establish and control the planning group using the book's specific metrics and guidelines.

Risks

Remain stuck in a costly and inefficient reactive 'firefighting' culture. Waste the majority of your maintenance budget on non-productive labor time.

Intended result

Achieve a highly productive, proactive maintenance organization with 'wrench time' consistently above 50%. Effectively double your workforce's output without hiring more people, leading to cleared backlogs and reduced costs.

Set the record straight

What this book sets straight

The common beliefs this book pushes back on.

The myth

Our maintenance crew is always busy, so their 'wrench time' or productivity must be high.

The reality

Wrench time in a typical maintenance organization without formal planning is only 25-35%; being busy often means dealing with preventable delays, not performing productive work.

The myth

Planning is about creating perfect, detailed job procedures and identifying all the parts in advance.

The reality

Planning's primary value is providing job scope and time estimates to enable scheduling and work control; detailed procedures and parts lists are developed over time through a feedback loop with skilled technicians.

The myth

We can't afford to pull our best technicians off their tools to become planners.

The reality

A single planner can increase the productivity of 20-30 technicians to such a degree that it's the equivalent of hiring 17 new people, making it the best investment a maintenance department can make.

Movement II

Map

The book's main ideas and how they connect.

In this part

Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)'s own model — and how it sits inside its field.

  • — 10 constructs the book works with
  • — Where it agrees with the field, exceeds it, or fills a gap
The Conditions2· the context you inherit
Management SupportQualified Personnel
What You Design3· the levers you pull
Planning PracticesScheduling PracticesWork Order System
What It Produces1· the states it creates
Workload Control and Accountability
What You Do2· the behaviours that follow
Reduced Work DelaysWrench Time

The constructs

Work Order System

A formal, documented process for requesting, tracking, authorizing, executing, and recording all maintenance work. It serves as the foundational vehicle for all planning and scheduling activities.

Management Support

Active and visible commitment from plant and corporate management to the principles and processes of maintenance planning and scheduling, including providing necessary resources and enforcing organizational discipline.

Qualified Personnel

The presence of skilled, experienced craft technicians to execute the work and top-level technicians selected and trained as planners to prepare the work.

Planning Practices

The set of formalized behaviors and processes for preparing future maintenance work, including operating as a separate department, using component-level files, applying expert estimates, and creating job plans that define scope, craft, and time.

Scheduling Practices

The set of formalized behaviors and processes for allocating planned work, including creating a one-week schedule that fills 100% of the forecasted labor hours available for each crew.

Reduced Work Delays

The reduction in non-productive time technicians spend waiting for assignments, parts, tools, instructions, or traveling. Planning reduces delays during jobs, and scheduling reduces delays between jobs.

Workload Control and Accountability

The ability of supervisors to assign a full schedule of work to technicians and hold them accountable for a goal's worth of work, rather than assigning one job at a time.

Wrench Time

The proportion of available-to-work time during which craft persons are productively working on a job site, not being kept from working by avoidable delays. It is the primary measure of workforce efficiency.

Maintenance Work Completion Ratethe outcome

The quantity of maintenance work orders successfully completed per unit of time, serving as a direct measure of the maintenance department's productive output.

Plant Reliability and Availability

The ultimate outcome where plant capacity is reliably available for production, measured by metrics such as equivalent availability, reduced breakdowns, and lower overall maintenance and production costs.

How they connect (12)
  • Work Order System → influences → Planning Practices
  • Management Support → influences → Planning Practices
  • Management Support → influences → Scheduling Practices
  • Qualified Personnel → influences → Planning Practices
  • Planning Practices → predicts → Reduced Work Delays
  • Planning Practices → predicts → Workload Control and Accountability
  • Scheduling Practices → predicts → Workload Control and Accountability
  • Scheduling Practices → predicts → Reduced Work Delays
  • Reduced Work Delays → predicts → Wrench Time
  • Workload Control and Accountability → predicts → Wrench Time
  • Wrench Time → predicts → Maintenance Work Completion Rate
  • Maintenance Work Completion Rate → predicts → Plant Reliability and Availability

Where this book diverges from the corpus

  • exceeds The book operationalizes planning with specific practices (separate department, component-level files, expert estimates) that are more concrete than the field's general capability definition.
  • exceeds The one-week schedule filling 100% of forecast crew labor hours is a sharper, testable scheduling rule than the field's general 'schedule against forecast' capability.
  • exceeds The book separates delays during jobs (fixed by planning) from delays between jobs (fixed by scheduling), a mechanism the field folds into one productivity construct.
  • fills gap Supervisors assigning a full schedule and holding technicians accountable for a goal's worth of work has no counterpart in the field's model.
  • fills gap The field has no explicit output measure of work orders completed per unit time as a direct indicator of department productivity.
  • lags The field covers reliability, availability, OEE, cost and profitability as distinct linked outcomes, while the book gathers them into one ultimate outcome.

Movement III

Master

Explore the book's ideas, examples and practical tools.

In this part

How the author makes the case — section by section, with the book's own tools.

  • — 10 sections, in the book's order
  • — The book's frameworks, checklists, and worked cases
Reduced Work Delays
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section separates the delays that happen inside a job from the ones between jobs, and maps each to its remedy. It gives you a way to find where technician time is actually lost.

Reduced Work Delays

The reduction in non-productive time technicians spend waiting for assignments, parts, tools, instructions, or traveling. Planning reduces delays during jobs, and scheduling reduces delays between jobs.

Why it matters. Delays are where most of the technician's paid day goes, so the reduction you achieve here is what ultimately shows up in wrench time.

Myth

Delays mostly come from technicians being slow or unmotivated.

Reality

Most lost time is imposed on technicians: no assignment, missing parts, absent tools, unclear instructions, and travel. Planning removes the delays during jobs and scheduling removes the gaps between jobs, so the fix is in the system.

Tools for this
The least you need to know
  • In-job delays are a planning problem and between-job delays are a scheduling problem.
  • Measure delay categories before choosing fixes, since a few dominate.
  • Delays are mostly system-imposed, so correct the system rather than the technicians.
Master this◆ Paid

The deep drill-down: 9 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Weekly Crew Delay-Reduction Control Sheet” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 11 tools for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Workload Control and Accountability
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section describes how a full weekly schedule changes the supervisor's role, from handing out one job at a time to holding crews to a goal. It shows what makes accountability fair and enforceable.

Workload Control and Accountability

The ability of supervisors to assign a full schedule of work to technicians and hold them accountable for a goal's worth of work, rather than assigning one job at a time.

Why it matters. Without a defined load, supervisors cannot hold anyone accountable for output, and the pace of work drifts to fit the time available.

Myth

Giving technicians one job at a time keeps control tight because supervisors can see everything.

Reality

One-at-a-time assignment makes the technician return for the next job, wastes time, and sets no target. A full schedule with estimated hours gives a measurable commitment, so accountability rests on a known quantity of work.

Tools for this
The least you need to know
  • Assign a full schedule so you can hold crews to a measurable quantity of work.
  • Accountability is only credible when estimates are fair and delays are removed.
  • Workload control is the behavioral link from scheduling to higher wrench time.
Master this◆ Paid

The deep drill-down: 8 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Weekly Goal and Schedule Accountability Sheet” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 5 tools for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Wrench Time
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section defines wrench time as the main efficiency measure and shows how to measure it and what to expect. You also learn how it differs from utilization or attendance.

Wrench Time

The proportion of available-to-work time during which craft persons are productively working on a job site, not being kept from working by avoidable delays. It is the primary measure of workforce efficiency.

Why it matters. Wrench time tells you how much of the paid labor reaches the equipment, and even a modest gain adds capacity without hiring.

Myth

Wrench time should approach 100% if technicians are well managed.

Reality

Some non-wrench time is unavoidable: safety briefings, permits, getting tools, and necessary travel. Unplanned shops are often around 25 to 35 percent, and well-run planned operations reach roughly 50 to 60 percent, so the goal is removing avoidable delay.

The least you need to know
  • Wrench time measures productive hands-on time during available time, not attendance.
  • Targets near 50 to 60 percent are realistic; 100 percent is not.
  • Quantify gains as equivalent technicians to show their value in capacity.
Master this◆ Paid

The deep drill-down: 8 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Wrench Time Delay Analysis Sheet” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Maintenance Work Completion Rate
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section covers output: how many work orders the department finishes per period and what that tells you. It explains how to read it alongside backlog and work type.

Maintenance Work Completion Rate

The quantity of maintenance work orders successfully completed per unit of time, serving as a direct measure of the maintenance department's productive output.

Why it matters. A higher completion rate means preventive and corrective work actually gets done, which keeps the backlog from growing into failures.

Myth

A rising count of completed work orders proves the department is improving.

Reality

Count alone can rise by closing trivial jobs or splitting orders. It shows real improvement only when weighted by hours or priority and when the work is the right work, such as preventive and high-priority orders.

Tools for this
The least you need to know
  • Completion rate matters only when weighted by hours, priority, and work type.
  • Pair it with backlog weeks to tell whether capacity truly exceeds demand.
  • Audit closed orders to guard against metric gaming.
Master this◆ Paid

The deep drill-down: 8 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Weekly Assigned-vs-Completed Review Sheet” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 1 tool for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Plant Reliability and Availability
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section ties the maintenance effort to the plant result: capacity available to produce at a lower cost. It identifies the metrics that show this outcome.

Plant Reliability and Availability

The ultimate outcome where plant capacity is reliably available for production, measured by metrics such as equivalent availability, reduced breakdowns, and lower overall maintenance and production costs.

Why it matters. This is the outcome that justifies the whole planning program to the business, in avoided downtime and lower maintenance and production cost.

Myth

Better planning and scheduling will lift availability quickly, within a few weeks of launch.

Reality

Reliability gains lag, because completed preventive and corrective work has to accumulate before failures fall. Early evidence appears in leading indicators such as backlog and wrench time, while equivalent availability follows months later.

Tools for this
The least you need to know
  • Availability is a lagging result of completed work, so watch leading indicators first.
  • Baseline before you start, or the improvement cannot be shown.
  • Translate availability gains into production and cost terms for management.
Master this◆ Paid

The deep drill-down: 7 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Capacity Reliability Baseline and Gain Sheet” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 2 tools for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Work Order System
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section covers the work order as the single container through which every maintenance job is requested, approved, planned, executed, and recorded. You get the minimum features a system needs before planning can work at all.

Work Order System

A formal, documented process for requesting, tracking, authorizing, executing, and recording all maintenance work. It serves as the foundational vehicle for all planning and scheduling activities.

Why it matters. If work bypasses the work order, the planner cannot see the backlog, so planning and scheduling end up working from an incomplete picture of the work that actually exists.

Myth

A CMMS or EAM license means you already have a work order system.

Reality

Software only stores records. The system is the discipline of routing every job, including the urgent ones, through request, approval, and closeout with failure and cost data. Plants with expensive software often still run on verbal requests and tag-less emergency fixes.

Tools for this
The least you need to know
  • Planning can only be as complete as the work orders feeding it, so route all work, including emergencies, through the system.
  • Closeout data on hours, failure cause, and parts is what lets later job plans and estimates improve.
  • A tool does not create the process; rules for request, approval, and priority do.
Master this◆ Paid

The deep drill-down: 9 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Work Order Record and Closeout Card” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 1 tool for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Management Support
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section explains what management must do, not just endorse, for planning and scheduling to survive past the launch. It focuses on resources, enforcement, and visible behavior.

Management Support

Active and visible commitment from plant and corporate management to the principles and processes of maintenance planning and scheduling, including providing necessary resources and enforcing organizational discipline.

Why it matters. Without sustained management enforcement, planning and scheduling decay as soon as the first production crisis lets supervisors revert to assigning one job at a time.

Myth

Management support means approving the initiative and funding the training.

Reality

Approval is the cheap part. Support is measured when production pushes to break the schedule and management either holds the line or lets the schedule be abandoned. Staffing dedicated planners and tracking schedule compliance are the proof.

Tools for this
  • Management SupportCase study — The author describes a plant where management revamped its existing planning organization.
The least you need to know
  • Support is shown by enforcing the schedule against production pressure, not by endorsing the program.
  • Dedicated planner positions and regular KPI reviews are the observable evidence of commitment.
  • Management support shapes both planning and scheduling, so its absence weakens them together.
Master this◆ Paid

The deep drill-down: 8 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Management Support Readiness Check for a Planning & Scheduling Program” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 1 tool for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Qualified Personnel
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section covers who does the work and who prepares it. It shows how to pick and develop planners and keep a craft base capable of executing plans as written.

Qualified Personnel

The presence of skilled, experienced craft technicians to execute the work and top-level technicians selected and trained as planners to prepare the work.

Why it matters. A planner without field credibility produces plans crafts ignore, and the entire planning effort loses its value.

Myth

Planners can be recruited from clerical or storeroom staff because planning is mostly paperwork.

Reality

Planning is a technical judgment task: sequencing steps, estimating hours, and specifying parts all require someone who has done the work. Top technicians earn the trust of crafts, which makes their plans actually used.

Tools for this
The least you need to know
  • Choose planners from your strongest technicians, because craft credibility determines plan adoption.
  • Planners need explicit training in planning methods; trade skill alone is not enough.
  • Plans only deliver value when the crew has the skill to execute them.
Master this◆ Paid

The deep drill-down: 8 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Planner Selection and Protection Checklist” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 6 tools for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Planning Practices
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section details how to prepare work before it is scheduled: a separate planning function, component-level files, expert estimates, and complete job plans. You get the elements that make a job ready to execute.

Planning Practices

The set of formalized behaviors and processes for preparing future maintenance work, including operating as a separate department, using component-level files, applying expert estimates, and creating job plans that define scope, craft, and time.

Why it matters. Planned jobs arrive with parts, tools, steps, and hours defined, and that readiness determines whether technicians work or wait once the job starts.

Myth

Planning is the same thing as scheduling, just done earlier.

Reality

Planning defines what, how, and with what resources for a single job; scheduling decides when and who for the whole crew. They are separate functions with separate outputs and separate delays they prevent, and one planner cannot cover both well.

Tools for this
The least you need to know
  • Planning prepares individual jobs; it is not a lighter version of scheduling.
  • Reusable component-level files make each future job plan faster and more accurate.
  • A job is not planned until parts and tools are verified, not merely listed.
Master this◆ Paid

The deep drill-down: 8 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Component-Level Job Plan Card” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 2 tools for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Scheduling Practices
strong · 1 source
  • Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)
In this section

This section explains how to allocate planned work to crews in a weekly schedule built to the labor hours actually available. It covers the loading rule and how the schedule gets built.

Scheduling Practices

The set of formalized behaviors and processes for allocating planned work, including creating a one-week schedule that fills 100% of the forecasted labor hours available for each crew.

Why it matters. A schedule loaded to the full forecast of crew hours leaves no slack for idle gaps between jobs, while an underloaded one hands the day back to improvisation.

Myth

A schedule should leave slack so crews can absorb emergencies and unexpected overruns.

Reality

The one-week schedule should consume 100% of forecasted hours, since emergencies will interrupt it anyway and are already reflected in the forecast. Leaving it deliberately underloaded just creates idle time and makes accountability meaningless.

Tools for this
The least you need to know
  • Fill 100% of forecast crew hours with planned, ready jobs in a one-week schedule.
  • Forecast hours net of known absences and emergency draw so the loading is honest.
  • Break-reason tracking turns schedule misses into specific fixes.
Master this◆ Paid

The deep drill-down: 8 operational steps, a worked example from the source, 5 decision rules, 5 failure modes, and the “Weekly Crew Schedule Fill Check” tool. Included when you buy this guide.

The rest of this section

the full written section · 4 how-to steps · 2 pitfalls to watch for · 11 tools for this section. Included when you buy this guide.

Grounded in: Maintenance Planning and Scheduling Handbook, 2nd Edition (McGraw-Hill Handbooks)

Movement III · The run-it-now depth

The Playbook

Practical tools and examples from this guide.

Frameworks

Frameworkfree

Maintenance Work Completion Rate

How this mechanism is run, step by step, as the literature describes it.

  1. 1Measure completion against an assigned baseline, not as a raw job count. The source's owner hears "we turned out 50 jobs, more than ever" and still cannot say whether that is good. A count has no denominator. Your primary metric is: estimated hours of work orders completed ÷ estimated hours of work orders assigned for the period. Keep the job count as a secondary figure.
  2. 2Plan every work order before it can be scheduled. The planner specifies job scope, craft and skill level, time estimate, and anticipated parts and tools. Without an hours estimate and a skill level, you can neither size the assignment nor score the result.
  3. 3Size the weekly assignment from available hours. In the source, ten technicians at 40 hours each give 400 hours, so the owner selects 400 hours of estimated work from the backlog. Schedule for every work hour available and hand the list over before the week starts (the source does it on Friday).
  4. 4Plan each job for the lowest skill level that can do it, and recompute the hours. The source plans the same five jobs at 64 labor hours with two mechanics or two welders on several jobs, and at 44 labor hours with a welder or mechanic plus a helper. If you overstate skill, you overstate the hours and misstate both the allocation and the completion rate.
  5. 5At the end of the period, pull back every job not started and sum its estimated hours. The owner's Friday check shows about 100 hours of jobs not started. Then ask for each job why it did not happen, and record the reason on the work order, not just in conversation.
  6. 6Close the loop on each job. The lead technician or supervisor gives the planner feedback after every job: problems, plan changes, anything that improves future plans. The planner files it by equipment number. Over time, this is how your estimates and next week's completion rate improve.
  7. 7Protect the pipeline that feeds completion. Keep at least one week of planned, approved, ready-to-execute backlog. Keep planners out of crew supervisors' control so they are not pulled into field work. Have crew supervisors handle the current day's work and problems.
  8. 8Make parts shortages visible. Planners and technicians reserve parts even when they plan around a missing item. Otherwise the storeroom never records a stockout, and the 'no parts' cause of incomplete jobs stays hidden.
Framework◆ Paid

Management Support

How this mechanism is run, step by step, as the literature describes it.

◆ The full 8-step framework — included with this guide purchase

Framework◆ Paid

Planning Practices

How this mechanism is run, step by step, as the literature describes it.

◆ The full 8-step framework — included with this guide purchase

Framework◆ Paid

Plant Reliability and Availability

How this mechanism is run, step by step, as the literature describes it.

◆ The full 7-step framework — included with this guide purchase

Framework◆ Paid

Qualified Personnel

How this mechanism is run, step by step, as the literature describes it.

◆ The full 8-step framework — included with this guide purchase

Framework◆ Paid

Reduced Work Delays

How this mechanism is run, step by step, as the literature describes it.

◆ The full 9-step framework — included with this guide purchase

Framework◆ Paid

Scheduling Practices

How this mechanism is run, step by step, as the literature describes it.

◆ The full 8-step framework — included with this guide purchase

Framework◆ Paid

Work Order System

How this mechanism is run, step by step, as the literature describes it.

◆ The full 9-step framework — included with this guide purchase

Framework◆ Paid

Workload Control and Accountability

How this mechanism is run, step by step, as the literature describes it.

◆ The full 8-step framework — included with this guide purchase

Framework◆ Paid

Wrench Time

How this mechanism is run, step by step, as the literature describes it.

◆ The full 8-step framework — included with this guide purchase

Checklists

Checklistfree

Maintenance Work Completion Rate — decision rules

  • If you can only report a job count, then do not call it completion. Add an estimated-hours baseline first, because 50 jobs means nothing without knowing how many hours should have been done.
  • If the assigned hours fall well below the available hours (for example, under 400 for ten people at 40 hours), then fix the allocation before judging the crew. A low completion rate is not the issue; under-assignment is.
  • If the same job type shows large hour swings between skill-level plans (such as 64 versus 44 labor hours for the same five jobs), then re-plan at the lowest required skill level before you schedule or score it.
  • If unstarted jobs trace to missing parts, then check whether stockouts were ever reserved and recorded. If the storeroom shows few stockouts but jobs keep slipping, then the reservations are not being made.
  • If planners are being lent to crews for field work, then refuse. Extend the job's schedule instead, as Smith does in the source, so the planned backlog stays at one week or more.
Checklist◆ Paid

Management Support — decision rules

◆ All 5 checkpoints — included with this guide purchase

Checklist◆ Paid

Planning Practices — decision rules

◆ All 5 checkpoints — included with this guide purchase

Checklist◆ Paid

Plant Reliability and Availability — decision rules

◆ All 5 checkpoints — included with this guide purchase

Checklist◆ Paid

Qualified Personnel — decision rules

◆ All 5 checkpoints — included with this guide purchase

Checklist◆ Paid

Reduced Work Delays — decision rules

◆ All 5 checkpoints — included with this guide purchase

Checklist◆ Paid

Scheduling Practices — decision rules

◆ All 5 checkpoints — included with this guide purchase

Checklist◆ Paid

Work Order System — decision rules

◆ All 5 checkpoints — included with this guide purchase

Checklist◆ Paid

Workload Control and Accountability — decision rules

◆ All 5 checkpoints — included with this guide purchase

Checklist◆ Paid

Wrench Time — decision rules

◆ All 5 checkpoints — included with this guide purchase

Case studies — including what didn't work

Case studyfree

Maintenance Work Completion Rate

Context

The source's one-person-company story shows the method. An owner who had grown to ten salaried technicians asked how the week went. The answer was 'we did a lot, 50 jobs, more than ever.' The owner had no way to judge that. So he estimated every job in the backlog and handed the crew 400 hours of work: 10 people × 40 hours. The next Friday he asked how much of that list was done. The reply was 'most of it.' He took back the unstarted jobs and found about 100 hours' worth. That means roughly 300 of the 400 assigned hours (about 75%) were started, and the completion rate can be no higher than that. The question then shifts from 'how many jobs' to 'why did these 100 hours not happen.' The technician's first answer begins with jobs for which something was missing, and the owner can now chase each cause. The count of 50 never could have led him there.

Case study◆ Paid

Management Support

Context

The author describes a plant where management revamped its existing planning organization. The result was a total clearance of a large backlog, with some work orders as old as 2 years, in less than 3 months. Clearing it freed in-house labor, so a scheduled major overhaul could start without costly contractor assistance. The author also says the plant had to unlearn as many false notions about planning as it had to learn principles. That points to management support as active correction of wrong ideas, not just approval. Use this as your template. Define planning correctly, rebuild the group, point the freed labor at a visible target such as the backlog or a planned overhaul, and report that result back to the plant. The source gives no other numbers for the effort, so measure your own baseline before you start.

◆ What happened, and the outcome — included with this guide purchase

Case study◆ Paid

Planning Practices

Context

The source's power station had achieved reliable plant capacity and a year of superior availability. Studies still showed room to improve workforce productivity. Management redirected its existing planning group and implemented planning according to the handbook's principles for about 30 mechanical craft persons. Planning had existed since 1982, but planning by these principles began in 1994. Less than a year later, in 1994, 30 maintenance persons were yielding the effort of 47. No one was hired, so it was as if 17 extra people had started helping at no cost. The practices behind that result were a separate planning group, future-work focus, component files, planner estimates, and plans that respect craft skill. A smaller failure in the source shows the plan-writing rule. A planner reviewed the history file and called for a valve replacement, but left the history reason off the job plan. The technician repaired the valve instead and wrote back 'I saved the company money by repairing the valve instead of replacing it.' One sentence of 'why' on the plan would have prevented that field decision.

◆ What happened, and the outcome — included with this guide purchase

Case study◆ Paid

Plant Reliability and Availability

Context

A large electric power station achieved 93% equivalent availability in 1993, well above industry average. It could not have sold electricity without that capacity. In the same 12 months it spent over $9 million on maintenance, with more than $5 million in craft wages and benefits. A study found productivity of about 35%: on a 10-hour shift, mechanic Joe Stark, with a pump job and a valve job, physically worked on the equipment for only 3.5 hours. The other 6.5 hours went to necessary breaks and to delays for gaskets, special wrenches, and instructions. Management redirected its existing planning group and implemented planning for the mechanical craft of about 30 persons. Less than a year later, in 1994, those 30 yielded the effort of 47. No one was hired, so the 17 extra persons' worth of work cost nothing. Sustained availability like this lets a company defer new construction even as sales grow, which lowers capital cost.

◆ What happened, and the outcome — included with this guide purchase

Case study◆ Paid

Qualified Personnel

Context

The source gives three actual histories for cleaning an oil burner gun: one person for 20 hours; two persons at 4 hours each; two persons at 6 hours each. A planner working from the file might average these and plan two persons at about 7 hours each. A skilled technician-planner asks why the jobs differed. The 20-hour job may have gone to an inexperienced technician. Or the person may have had no other work or schedule pressure and simply stretched the job across two 10-hour days. If so, the two shorter jobs are the realistic base, and the planner plans two persons at about 5 hours each. The file shows only the hours. The planner's craft experience explains them, and that is why the source prefers the technician-planner's opinion over built-up estimates.

◆ What happened, and the outcome — included with this guide purchase

Case study◆ Paid

Reduced Work Delays

Context

The source power station achieved 93% availability while spending over $9 million on maintenance, including more than $5 million in craft wages and benefits. A study found productivity of about 35%. Mechanic Joe Stark, with a pump job and a valve job in a 10-hour day, physically worked on equipment for only 3.5 hours. The rest went to break time and to stopping for a gasket, a special wrench, or instructions, during which the job did not progress. At 35%, only $1,750,000 of the $5 million bought productive work, and $3,250,000 paid for nonproductive time. A later utility case shows the scheduling link: it had planning without scheduling, and wrench time studies showed time freed from delay areas but no gain in productive time, because no additional work was assigned. After planning and scheduling were extended to 137 personnel, the utility expected to free the equivalent of 78 technicians, who could take on backlog, outsourced work, in-house part building, or preventive maintenance, or absorb attrition without rehiring.

◆ What happened, and the outcome — included with this guide purchase

Case study◆ Paid

Scheduling Practices

Context

The handbook's power station supplies the real benchmark. After 1993 it redirected its planning group and, following the handbook's guidelines, implemented planning for its mechanical craft of about 30 persons. Less than a year later, in 1994, those 30 people yielded the effort of 47, with no new hires. Scheduling is where that gain gets consumed, because freed-up hours produce nothing unless work is assigned to them. The handbook's productivity figures show how much room there is. Typical wrench time is 25% to 35%. On a 10-hour shift at 35%, a technician makes productive progress for only 3.5 hours, and the other 6.5 go to breaks and delays such as getting parts, instructions or tools. A fundamental planning and scheduling system moves wrench time to about 45%. File history lifts it to about 50%, and special aids to over 55%. In practice, forecast each crew's hours for the week, fill 100% of them with prioritized planned jobs, stage the parts and tools, and let the crew leader assign names each day. A crew scheduled at less than 100% leaves the freed hours unused.

◆ What happened, and the outcome — included with this guide purchase

Case study◆ Paid

Work Order System

Context

The source describes one plant's CMMS rollout that shows how a work order system gets adopted. The plant first installed the CMMS only to track paper work orders and to supply equipment data to planners. Management then gave everyone the option to write work orders directly into the system. The implementer expected only 10% to 20% of new work orders to be entered directly. The surprise was that over 95% were (the passage cuts off here, so the exact wording after '95%' is not available). The lesson is that an easy-to-use intake makes people route all requests through the system. The same source warns that the cost is paid if work bypasses the order: technicians who find follow-up work and pursue it without documenting it break the schedule, and management cannot see that productivity suffered. The fix is to open a new work order for the follow-up, plan it, and then close the original with feedback filed to the minifile.

◆ What happened, and the outcome — included with this guide purchase

Case study◆ Paid

Workload Control and Accountability

Context

Palmer describes a utility that had planning without scheduling. Wrench time studies showed planning had freed time from earlier delay areas, but overall productive time did not rise, because the maintenance group never assigned more work. The fix is the one the passages prescribe. Take a forecast of crew hours, say 100 machinist hours, and load it with the planned backlog by priority. If the backlog holds 100 hours of high priority helper-only work and 100 hours of low priority machinist work, the machinists take the helper work. The supervisor hands out work orders against the full week. At week's end, management does not dock pay for a miss. It asks why the schedule broke. A true emergency, a false emergency, or a crew problem each leads to a different fix, and the crew learns whether it won or lost the week.

◆ What happened, and the outcome — included with this guide purchase

Case study◆ Paid

Wrench Time

Context

The source's illustration (Figure 2.10) shows a company whose time on the job is only 35%. Category 1, productive work at the job site, is the only productive slice. Every other category counts as delay. The source also cites the common perception that a mechanic on a 10-hour shift is productive most of the day, and notes that getting only 3 1/2 hours of productive work from such a mechanic seems hard to believe. Yet 3.5 of 10 hours is exactly 35%. The gap between perception and reality is the opportunity. The expert reads the study as follows. First, a mechanic fetching a part is busy but in a delay that might have been avoided, so it counts against wrench time. Second, the minutes spent getting tools, traveling, and waiting add up to significant delays. Third, the next step is to break the 65% into categories such as parts, tools, instructions, and travel. The planner then targets the largest avoidable category first. A later study shows whether that category's share fell.

◆ What happened, and the outcome — included with this guide purchase

Templates

Templatefree

Weekly Assigned-vs-Completed Review Sheet

Template◆ Paid

Management Support Readiness Check for a Planning & Scheduling Program

◆ The fillable template — included with this guide purchase

Template◆ Paid

Component-Level Job Plan Card

◆ The fillable template — included with this guide purchase

Template◆ Paid

Capacity Reliability Baseline and Gain Sheet

◆ The fillable template — included with this guide purchase

Template◆ Paid

Planner Selection and Protection Checklist

◆ The fillable template — included with this guide purchase

Template◆ Paid

Weekly Crew Delay-Reduction Control Sheet

◆ The fillable template — included with this guide purchase

Template◆ Paid

Weekly Crew Schedule Fill Check

◆ The fillable template — included with this guide purchase

Template◆ Paid

Work Order Record and Closeout Card

◆ The fillable template — included with this guide purchase

Template◆ Paid

Weekly Goal and Schedule Accountability Sheet

◆ The fillable template — included with this guide purchase

Template◆ Paid

Wrench Time Delay Analysis Sheet

◆ The fillable template — included with this guide purchase

Items marked Paid are included when you buy this guide.

Movement IV

Reflect

Consider the book's evidence, limitations and how it compares with other sources.

In this part

How good is it — where the book stands against the field, what it leaves open, and when to trust it.

  • — Its positioning, its critique, its blind spots
  • — When to apply it — and when not
  • — The evidence behind the advice

Book profile · in the corpus

This book’s model, against the corpus

8 of 10 constructs align with the field · 2 the book adds · 4 where it diverges · the field spans 35 constructs across 11 books

shared with the corpusthis book's own emphasisthe corpus adds (other sources)where it diverges

Shared with the corpus — corroborated by other sources

Work Order SystemManagement SupportQualified PersonnelPlanning PracticesScheduling PracticesReduced Work DelaysWrench TimePlant Reliability and Availability

This book's own emphasis — where it's the authority

Workload Control and AccountabilityMaintenance Work Completion Rate

Where it diverges — the book and the field pull apart

Planning PracticesScheduling PracticesReduced Work DelaysPlant Reliability and Availability

The corpus adds — from 10 other sources this book doesn't cover

The full field guide folds in ideas this book doesn’t reach — drawn from 10 further sources and cited in the full model.

This book’s place in the corpus

1 of 11
sources in this corpus
10
constructs contributed
8
corroborated by others
2
unique to this book

Why the corpus guide, not just this book

The book builds on the field's shared view that the work order system, management support and dedicated planners drive maintenance performance, and it is the authority on how planning and scheduling work in practice: the 100%-of-forecast-hours weekly schedule, the delay mechanisms and supervisor accountability. The reconciled field-guide still adds the wider context the book leaves out: strategy, PM/RCM, data and inventory, human error and culture, and the downstream cost and profitability outcomes.

This guide stands on the shoulders of this book and 10 other sources — every claim cited, the disagreements named.

Read the reconciled Maintenance Repair Leadership guide →

Read it closely

The book, examined

Not a summary — a close analytical reading: how the book is built, what it leaves open, and where it falls short.

How it’s built — the argument in order

  1. 01
    The Productivity Problem and Opportunity — Establishes the central premise—wrench time is only 25-35% without planning—framing lost labor time as a massive hidden cost and setting up the improvement opportunity (30-person crew acting like 47).
  2. 02
    Defining Planning as a Coordination Function — Reframes planning not as perfect detailed job plans but as providing scopes, craft requirements, and time estimates; introduces the component-level file system and continuous improvement through technician feedback.
  3. 03
    The Twelve Foundational Principles — Lays out the core rules governing planning and scheduling—separate planning department, focus on future work, component-level filing, planner skill, recognizing skill of crafts, work sampling, etc.—that determine success or failure.
  4. 04
    Scheduling as the Realization Mechanism — Argues scheduling is integral to planning; details allocating 100% of available labor hours in a weekly schedule so that planning's coordination actually converts into wrench time gains.
  5. 05
    Reactive vs. Proactive Work Handling — Explains how planners must stay ahead of jobs-in-progress and handle urgent/reactive work differently to avoid becoming a bottleneck, preserving their forward focus.
  6. 06
    Implementation, Management, and Measurement — Provides how-to guidance, sample forms, and metrics (wrench time, completion rate, reliability) for setting up, running, and measuring the effectiveness of the planning/scheduling department.

What it leaves unsolved

How reliably do the claimed wrench-time gains (35% to 55%) transfer across different industries, plant sizes, and cultures?

The book generalizes from the author's utility/industrial experience but does not fully establish the boundary conditions under which the doubling effect holds or fails.

How do you sustain management support over time when short-term costs (adding planners) precede long-term reliability payoffs?

The book stresses management support as a precondition but treats its erosion under budget pressure as an assumption rather than a solved problem.

How should the system adapt to digital CMMS, predictive/condition-based maintenance, and analytics tools?

The framework is rooted in file systems and manual scheduling; it raises but does not resolve how modern data-driven maintenance reshapes the planner's role.

How is quality of planned work verified beyond technician feedback loops?

The book relies on craft feedback to improve plans over time but admits it does not create perfect plans upfront, leaving quality assurance somewhat open-ended.

Where it falls short — a fair critique

incomplete

The book focuses heavily on the internal planning/scheduling mechanics but gives less rigorous treatment to organizational change management—how to overcome craft resistance, union dynamics, and supervisor turf conflicts that determine whether principles actually stick.

uninformed

Written primarily from a heavy-industry/utility vantage, it under-addresses lighter, high-variability, or facilities/service maintenance environments where the same principles may need substantial adaptation.

misinformed

The headline 'wrench time' statistics (25-35% rising to 50-55%) are presented as near-universal, but measurement methodology (work sampling) is sensitive to definition and observer bias, so the precision implied may overstate certainty.

illogical

The 30-becomes-47 framing treats the productivity multiplier as if labor were the sole constraint; it assumes freed wrench time converts directly into completed valuable work, understating limits from parts availability, engineering, and equipment access.

incomplete

While it insists scheduling must allocate 100% of labor hours, it gives thinner guidance on reconciling that rigidity with genuinely unpredictable emergency workloads, risking a schedule that looks disciplined on paper but breaks in practice.

Before you apply it

Using it well

Where the method fits, who it’s for, and the honest case for and against — so you apply it where it works.

Is this book for you?

For you if

  • You manage or supervise an industrial maintenance workforce
  • You suspect low technician productivity and want a concrete fix
  • You can influence organizational structure and staffing

Skip it if

  • You run a very small crew where planner overhead won't pay back
  • Your work is almost entirely unplanned emergencies
  • You lack authority to create or protect a planning function

Need first

  • A functioning work order system
  • Management commitment to fund and protect planners
  • Baseline data on current wrench time

When it applies — and when it doesn’t

Use it
  • Industrial plant with reactive maintenance and low wrench time — exactly the low-productivity gap the system targets
  • Manager has authority to create a formal planning function — principles require organizational restructuring to work
  • Establishing a component-level file system and feedback loop — core mechanism for improving plans over time
Adapt it
  • Small shop with only a handful of technicians — dedicated planner overhead may not pay back at tiny scale
  • Predominantly emergency/breakdown-driven operations — scheduling gains erode when most work is reactive and unplanned
  • Non-industrial, knowledge-work maintenance contexts — wrench-time metrics and craft estimates assume physical trades
  • Measuring program success without wrench-time baseline — gains are unprovable without a productivity metric
Not here
  • No management buy-in for the planning role — the book names management support as a make-or-break principle
  • Using planners to expedite jobs-in-progress — contradicts the future-focus principle and destroys the value

The honest case

Strongest case for

  • Wrench-time data quantifies a huge, verifiable hidden cost most plants ignore
  • Adding a few planners for near-double output is an exceptional ROI argument
  • Twelve concrete principles plus sample forms make it actionable, not abstract
  • Separating planning of future work from firefighting is a genuine structural insight

Strongest objection

  • The 47-from-30 headline assumes ideal conditions rarely met in messy real plants
  • Wrench-time percentages are notoriously hard to measure honestly and can be gamed
  • Success hinges on management support and culture—factors the system cannot itself supply
  • Heavily reactive environments may never achieve the scheduling stability the gains require
Source notes

The model's constructs are drawn from the source element(s); load-bearing constructs are corroborated across the shelf, emerging ones are flagged.

Ideas covered by the source notes

  • Work Order System
  • Management Support
  • Qualified Personnel
  • Planning Practices
  • Scheduling Practices
  • Reduced Work Delays

Movement V

Measure

Use available assessments to reflect on what you have learned.

In this part

A way to gauge yourself against the book's model, and the instruments it gives you.

  • — A self-check built from the book
  • — Instruments and what you'd measure next

Learning curriculum

After this book, you can…

The book's learning objectives, classified by Bloom's taxonomy and ordered so each builds on the ones before it.

01Foundational — know & understand
  1. explain
    After this book you can explain what maintenance planning and scheduling is and how it improves workforce productivity, including the concept of wrench time.
    Check: Ask learners to define planning, scheduling, and wrench time and describe the causal link to productivity in a short written response.
  2. describe
    After this book you can describe how a formal work order system requests, tracks, authorizes, executes, and records maintenance work as the foundation for planning.
    Check: Have learners map the lifecycle of a work order through each stage using a sample form.
  3. identify
    After this book you can identify the roles of management support and qualified personnel required to sustain a planning and scheduling function.
    Check: Quiz learners on the responsibilities of management and criteria for selecting planners and craft technicians.
  4. explain
    After this book you can explain how workload control and accountability let supervisors assign full schedules and hold technicians to a goal's worth of work.
    Check: Ask learners to describe the accountability mechanism and how the crew leader manages the current day's work.
02Working — apply
  1. apply
    After this book you can apply the six planning principles to prepare proactive job plans, including operating as a separate department and focusing on future work.
    Check: Give a maintenance backlog and have learners produce a planned job scope using the planning principles.
  2. construct
    After this book you can apply the six scheduling principles to build a one-week schedule that allocates 100% of available labor hours from a skills forecast.
    Check: Provide a labor forecast and planned work orders and have learners produce a complete weekly schedule.
  3. measure
    After this book you can measure planning performance using work sampling (wrench time) and scheduling performance using schedule compliance.
    Check: Have learners conduct or interpret a work sampling study and calculate schedule compliance from sample data.
  4. calculate
    After this book you can quantify the productivity and capacity benefits of planning, such as turning a 30-person crew into a 47-person effective force.
    Check: Give baseline wrench time figures and have learners compute effective workforce gains and completion rate improvements.
03Advanced — analyze & judge
  1. analyze
    After this book you can analyze why planning and scheduling systems succeed or fail by evaluating adherence to the twelve core principles.
    Check: Provide a case description of a struggling program and have learners diagnose which principles are violated.
  2. differentiate
    After this book you can distinguish how reactive, urgent work should be handled differently from proactive work so planners do not become a bottleneck.
    Check: Present mixed urgent and routine work scenarios and have learners route each appropriately, justifying the decision.
04Mastery — synthesize & create
  1. create
    After this book you can create component-level files and estimate job time and craft requirements based on planner expertise.
    Check: Have learners build a sample component file and produce a defensible time/craft estimate for a given job.
  2. design
    After this book you can design and set up a complete planning and scheduling department, integrating the work order system, staffing, and measurement processes.
    Check: Have learners produce an implementation plan including org structure, forms, staffing, principles, and KPIs for a plant.
  3. evaluate
    After this book you can evaluate the impact of planning and scheduling on plant reliability and availability using appropriate reliability metrics.
    Check: Provide reliability and availability data before and after implementation and have learners assess program effectiveness.
  4. appraise
    After this book you can appraise the strategic value of transforming maintenance from a reactive cost center into a proactive competitive advantage and advocate for management commitment.
    Check: Have learners build and present a business case to management justifying investment in planning and scheduling.

How to measure it

Turning each idea into a measure

For each construct: how to operationalize it, the observable signals to look for, and how well it holds up.

Work Order System

The degree to which the organization utilizes a standardized system (paper or CMMS) for all maintenance tasks, requiring formal work orders for any work beyond minor operator adjustments.

Observable signals
  • Percentage of maintenance labor hours charged to specific work orders vs. blanket orders.
  • Existence of a formal manual or CMMS procedure for work order flow.
  • Consistent use of work order forms across the plant.
Scale

Can be measured by auditing work performed vs. work documented in the work order system.

Management Support

The extent to which managers actively sponsor the planning program, protect planners from non-planning duties, enforce schedule discipline, and communicate the importance of the planning and scheduling system.

Observable signals
  • Management communication about planning.
  • Decisions to protect planners' time.
  • Inquiries about schedule compliance and other planning metrics.
Scale

Typically assessed via perceptual surveys of planners and supervisors.

Qualified Personnel

The aggregate level of craft-specific skill, experience, and system knowledge within the maintenance technician workforce, and the degree to which planners are selected from the top tier of these technicians.

Observable signals
  • Technician certifications and years of experience.
  • Planner selection criteria and their craft background.
  • Formal training records.
Scale

Assessed via HR records, training completion data, and qualification testing.

Planning Practices

The degree of implementation and adherence to the six core planning principles outlined in the book, such as focusing on future work, using component-level files, and recognizing craft skills in plan detail.

Observable signals
  • Organizational chart showing planning as a separate function.
  • Existence and use of a component-level minifile system.
  • Percentage of jobs with pre-written plans containing scope, craft, and time estimates.
Scale

Measured via process audit against the six planning principles.

Scheduling Practices

The degree of implementation and adherence to the six core scheduling principles, such as forecasting labor by skill, allocating 100% of forecasted hours, and having the crew supervisor manage the daily schedule.

Observable signals
  • Existence of a formal weekly scheduling meeting and published weekly schedule.
  • Evidence of supervisors forecasting weekly labor availability.
  • Calculation and review of Schedule Compliance metric.
Scale

Measured via process audit against the six scheduling principles.

Reduced Work Delays

The aggregate percentage of time a maintenance workforce spends on non-wrench-time activities, as measured by a formal work sampling study.

Observable signals
  • Time spent at storeroom counter.
  • Time spent traveling between job site and shop.
  • Idle time observed between job completion and next assignment.
Scale

Measured as the sum of all non-direct-work categories in a Work Sampling study.

Workload Control and Accountability

The degree to which supervisors create and issue daily work assignments that account for the full shift of each technician, based on the weekly schedule allocation.

Observable signals
  • Existence of daily schedules for each crew.
  • Supervisor's reported confidence in being able to assign a full day's work.
  • Reduced instances of technicians returning for new assignments mid-shift.
Scale

Can be measured by observing daily assignment practices and supervisor/technician perceptions.

Wrench Time

The percentage of observations in a statistical work sampling study where technicians are categorized as 'Working' (Category 1), defined as physically performing work at the job site or shop.

Observable signals
  • Technician physically manipulating tools on equipment.
  • Technician performing troubleshooting at the work site.
  • Technician completing job-related paperwork at the job site.
Scale

Expressed as a percentage from 0% to 100%. Measured exclusively via statistical work sampling study as described in Appendices G & H.

Holds up?

Considered the primary measure of planning and scheduling effectiveness.

Maintenance Work Completion Rate

The total number of discrete work orders with a status changed to 'Completed' or 'Closed' within a defined period (e.g., month, week).

Observable signals
  • Weekly/monthly reports of completed work orders from the CMMS.
  • Reduction in the size of the maintenance backlog over time.
Scale

Measured as a count of work orders.

Holds up?

Should be considered alongside backlog size to ensure new work is not being suppressed.

Plant Reliability and Availability

Standard industry metrics that measure the percentage of time a production asset is capable of operating at its rated capacity. For example, Equivalent Availability Factor (EAF) for a power plant.

Observable signals
  • Equivalent Availability Factor (EAF) reports.
  • Number of unscheduled outages or breakdowns.
  • Production output metrics.
Scale

Measured using operational and financial data from plant systems.

Self-assessment

Where would you like to improve?

This is a structured self-diagnostic built from the model — a mirror for reflection, not a validated psychometric scale. For validated measurement, see the instruments below.

1 = Strongly Disagree · 7 = Strongly Agree

Capabilitythe practices and skills you deploy
  • I request, authorize, track, and record all of our maintenance work through a single documented work order process.
  • Our planners are not separate from the maintenance supervisors and rarely prepare jobs ahead of time using component-level equipment files.
  • I build a one-week maintenance schedule that fills all of the forecasted craft labor hours with planned work.
  • Our technicians rarely wait for parts, tools, instructions, or assignments once a job has started.
  • Our craft technicians spend most of their available working time actively working on jobs rather than being held up by avoidable delays.
Alignmentthe outcomes you steer toward
  • My maintenance department consistently completes the number of work orders it plans to finish each week.
  • Our plant equipment is reliably available for production with few unexpected breakdowns.
Motivationthe states you cultivate in others
  • I assign each technician a full schedule of work and hold them accountable for completing it.
Supportthe conditions you shape
  • Our plant management visibly supports maintenance planning and scheduling by providing the resources and backing it needs.
  • Our craft technicians are skilled and experienced, and our planners are top technicians who have been trained for planning.
0 of 10 answered

Proposed measures — starter instruments where no validated one was found

Work Order System Rigor Index (Proposed)

proposed · not validated

Rated for your team or hiring process — not a personal self-check.

  1. Every maintenance request is entered in a single work order system with a unique ID, requester, asset, and priority before any work is assigned.
  2. Each work order records its authorization, assigned resources, completion date, and actual labor and materials, and cannot be closed without failure and repair data being entered.
  3. Open, backlog, and completed work orders can be retrieved from the system by asset, status, and priority at any time, and are reviewed in routine meetings.

Scale: 1–7 (Strongly Disagree → Strongly Agree), rated by an evaluator or the team. Average the items; treat ≤3 as a gap to close in the process.

Management Support for Planning and Scheduling Index (Proposed)

proposed · not validated

Rated for your team or hiring process — not a personal self-check.

  1. Plant and corporate managers attend the weekly schedule meeting and the periodic review of planning and scheduling metrics, such as schedule compliance and planned work percentage, as documented in meeting records.
  2. Planning and scheduling roles have dedicated, funded headcount that is protected from reassignment to routine craft work or break-in coverage.
  3. Managers enforce the planning process by requiring that non-emergency work pass through planning and the schedule, and emergency exceptions are reviewed and tracked.

Scale: 1–7 (Strongly Disagree → Strongly Agree), rated by an evaluator or the team. Average the items; treat ≤3 as a gap to close in the process.

Qualified Personnel Capability Index (Proposed)

proposed · not validated

Rated for your team or hiring process — not a personal self-check.

  1. Craft technicians' skills and certifications are documented, and the skill mix on the schedule matches the requirements of the work assigned.
  2. Planners are selected from experienced senior technicians using defined criteria, and each planner has a written role description.
  3. Planners and craft technicians complete formal training on planning, scheduling, and job-plan practices, and training records are current.

Scale: 1–7 (Strongly Disagree → Strongly Agree), rated by an evaluator or the team. Average the items; treat ≤3 as a gap to close in the process.

Sources

The cheat sheet

Everything, on one page

One key takeaway from each section, with links to read more.

  • Work Order SystemPlanning can only be as complete as the work orders feeding it, so route all work, including emergencies, through the system.
  • Management SupportSupport is shown by enforcing the schedule against production pressure, not by endorsing the program.
  • Qualified PersonnelChoose planners from your strongest technicians, because craft credibility determines plan adoption.
  • Planning PracticesPlanning prepares individual jobs; it is not a lighter version of scheduling.
  • Scheduling PracticesFill 100% of forecast crew hours with planned, ready jobs in a one-week schedule.
  • Reduced Work DelaysIn-job delays are a planning problem and between-job delays are a scheduling problem.
  • Workload Control and AccountabilityAssign a full schedule so you can hold crews to a measurable quantity of work.
  • Wrench TimeWrench time measures productive hands-on time during available time, not attendance.
  • Maintenance Work Completion RateCompletion rate matters only when weighted by hours, priority, and work type.
  • Plant Reliability and AvailabilityAvailability is a lagging result of completed work, so watch leading indicators first.

Publication details

Consult the sources listed in this guide for further reading. Edition 1 · Updated 2026-10-03.

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