How to Write Work Instructions that Frontline Will Follow

Procedure vs Work Instruction - What’s the Difference?

A procedure or SOP (Standard Operating Procedure) explains what needs to happen and why - the overall rules, responsibilities, and sequence for a task. It’s the high-level framework. For example, a lockout/tagout SOP tells the whole site how energy isolation must be done, who can apply locks, how verification works, and what documentation is required. Procedures/SOPs usually apply across departments, across shifts, and often across multiple sites.

A work instruction sits underneath that procedure/SOP umbrella and explains how to do the job on the actual machine in front of you. It provides the step-by-step instructions - e.g. torque values, bolt locations, photos, measurements, and the exact order the operator should move through.

Where the SOP sets the standard, the work instruction gives the hands-on walkthrough that makes that standard real. In most plants, the two work together: the SOP defines the rules, and the work instruction makes them practical and repeatable in the field.

Why Most Work Instructions Don’t Get Followed

When a work instruction doesn’t match the job, operators can spot it in seconds. Maybe the photos show a different model of screen. Maybe the steps are listed in a nonsensical sequence. Maybe the language sounds too formal, not the terms that would be used in a plant. Once trust in the instruction process is broken, crews default to memory or shortcuts - not because they want to, but because the document slows them down.

Common reasons instructions fall apart in the field include:

• They’re written separately from the equipment. Steps don’t match the actual walk-around path or the way guards open.
• They assume ideal conditions. Real shifts can have mud, dust, wear, time pressure, and other constraints that can cause a spanner in the works, which the document ignores.
• They’re too long or too vague. Operators don’t have time for paragraphs. They need crisp, numbered steps.
• They’re outdated. Equipment gets swapped, retrofitted, or relocated, but the instruction stays the same.

How to Write Work Instructions

Writing work instructions starts with the job itself. Go to the machine, follow the path an operator takes, and build the steps in that same order, preferably together with an actual operator. Keep each line short and action-focused so the flow is easy to follow. Use clear photos from the actual equipment, not generic images, and only include the details that matter - e.g. torque values, lockout points, grease types, measurements, and any “red-state” conditions that should stop the job.

Good work instructions make the safest, most reliable way to do the task obvious, even for operators with mixed experience levels. That means matching the real sequence of the job, calling out hazards at the right moment, and ending with a simple picture of what “done” looks like.

Work Instruction Template

Below is a work instruction template for a jaw crusher cheek plate replacement for a sample machine we will call “JC-204”. As you will see, work instructions do not need to be overly complex, even if the procedure itself may be complex - rather the opposite. The easier and clearer they are the better, but the most important part is to adapt them to the actual individuals who will be performing the actual repair.

Always involve the operators themselves in the process of creating a work instruction to ensure they are not overly complex and get the instructions across in a logical and easy to understand way.