Understanding Run to Failure Maintenance: Pros, Cons, and Best Practices

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<br /> Understanding Run-to-Failure Maintenance<br />

Understanding Run-to-Failure Maintenance

Run-to-failure maintenance is a strategy where assets are deliberately operated until they fail. This blog post explores the nuanced nature of this sometimes controversial approach to asset management. We’ll delve into what run-to-failure (RTF) maintenance entails, assess its benefits and drawbacks, and identify scenarios where its application is advantageous. Moreover, we will discuss how to implement this strategy effectively with the help of modern Computerized Maintenance Management Systems (CMMS), including a brief look at how Tractian’s CMMS can aid in planning RTF strategies. Let’s explore when and why you might consider run-to-failure maintenance as a viable option in your operations.

What Is Run-to-Failure Maintenance (RTF)?

Run-to-Failure Maintenance (RTF) is a deliberate maintenance strategy where equipment is used until it fails. Unlike preventive maintenance, which involves regular upkeep or replacement to prevent breakdowns, RTF assumes that doing nothing is often more cost-effective until failure occurs. It makes economic sense for non-critical assets whose failure doesn’t significantly affect the operations or safety of the infrastructure.

This approach simplifies maintenance planning as it does not involve scheduled inspections or part replacements. RTF can be beneficial for assets that are inexpensive to replace or repair, making it an integral part of the overall maintenance strategy in some industries. The key is determining when it’s appropriate to employ this method, ensuring that it aligns with operational goals and safety standards.

Run-to-Failure Maintenance: Benefits and When to Use It

One of the primary benefits of RTF maintenance is its cost savings on non-critical equipment. By eliminating scheduled maintenance, companies can significantly cut back on labor and resource allocation. It’s an attractive option in situations where the cost of preventive measures outweighs the cost associated with potential failures.

Employing RTF makes sense in specific circumstances where the asset’s downtime has minimal impact on operational throughput. Companies often choose this approach when they have an extensive inventory of spare parts or quick access to replacements, ensuring that the downtime caused by failure does not span extended periods.

When Does a Run-to-Failure Maintenance Strategy Make Sense?

1. The Asset Is Low-Cost and Easy to Replace

RTF strategy is ideal for low-cost equipment and assets that are easy to replace. For example, simple machinery and office equipment used in non-critical capacities often benefit from RTF maintenance. The costs of conducting regular inspections and preventive maintenance often far exceed the expense incurred through RTF.

For low-cost assets, it may be more efficient to let them operate until they break and then replace them entirely. This approach minimizes unnecessary labor costs and limits the complexity of the maintenance strategy.

2. Downtime Has Minimal Impact on Operations

In environments where equipment downtime does not significantly affect operations, running the asset to failure can be a straightforward and economical choice. An organization might allow non-essential air conditioning units or backup systems within a facility to run to failure, because their breakdowns do not halt primary operations.

Such maintenance strategies can be layered intelligently over broader maintenance plans that prioritize reliability and uptime of critical assets, ensuring that business operations are not compromised.

3. The Cost of Preventive Maintenance Is Higher Than Repairs

Industries where preventive maintenance costs and set-up are high should explore RTF as an option for appropriate assets. If the frequency of preventive interventions usually results in significant downtime or heavy operational expenses, letting the part or machine run until failure and then addressing it might be justified.

Consider, for example, basic conveyor belts or small motors. The tangible benefits of RTF in such cases can be substantial, providing better financial and logistical perspectives compared to aggressive preventive maintenance schedules.

4. Spare Parts Are Readily Available

One crucial requirement for run-to-failure maintenance is the quick availability of spare parts. Operational efficiency is maintained by ensuring that in the event of a failure, the necessary parts can be sourced rapidly to minimize downtime.

This approach requires close communication and relationships with suppliers or an internal stock of parts that eases the pressure that the potential waiting period for replacements might otherwise entail.

5. The Failure Doesn’t Pose Safety or Compliance Risks

The most critical consideration when opting for an RTF maintenance model is the safety and compliance risk involved. Assets undergoing this strategy should not pose hazards to employee safety or violate operational safety standards.

RTF is unsuitable for crucial equipment and safety apparatus, such as emergency alarms, brakes, or high-pressure systems, where failure could result in catastrophic incidents or non-compliance with regulatory requirements.

6. The Asset Has a Low Risk of Failure

RTF maintenance strategy can be more attractive for assets characterized by a low likelihood of failure. Machines with proven reliability records can be allowed to run to failure as their failures are few and far between.

This approach aligns with the calculated risk management strategy where the statistical likelihood of failures is analyzed and integrated into decision-making processes, minimizing unnecessary intervention and cost while maximizing asset uptime.

Example of Run-to-Failure Maintenance

1. Light Bulbs in a Manufacturing Facility

Replacing light bulbs is a prime example of RTF maintenance, as these are low-cost, low-priority items with minimal impact on operations. Facilities often allow bulbs to burn out fully before replacing them, saving time and labor costs associated with more frequent inspections or partial replacements.

This approach ensures maintenance efforts are allocated to more critical tasks while keeping operational costs in check.

2. Backup Pumps in a Water Treatment Plant

Another example is backup pumps in water treatment facilities. These assets are critical when in use but may tolerate an RTF strategy when dormant, so long as primary systems are conducting critical operations efficiently.

Lesser usage frequency and backup status often mean these systems bear an acceptable risk level for RTF, as their intermittent operation conditions often lead to long service life within this maintenance context.

3. Conveyor Belts in a Distribution Center

Conveyor belts employed for non-essential functions in distribution centers can represent an ideal candidate for RTF maintenance. Given their cost effectiveness and reliability, operating them until irreparable failure occurs can be sensible.

Non-critical failure of these belts is unlikely to impose severe disruption, and with a robust supply of spare belts ready, they adhere to the process’s efficiency and fiscal responsibility.

What Are the Benefits of Run-to-Failure Maintenance?

Low Maintenance Costs for Non-Critical Assets

RTF maintenance keeps maintenance costs low by reducing the frequency of regular inspections, part replacements, and associated downtime for non-critical assets. This methodology targets reduced complexity and streamlined operation costs.

The balance between operational needs and cost reduction is pivotal, and RTF allows companies to manage these factors dynamically under asset-specific circumstances.

Time Savings

Since there are no regularly scheduled maintenance interventions, RTF saves time for maintenance personnel, allowing them to focus on other necessary tasks and increase productivity.

The time savings factor provides maintenance teams flexibility in their work schedules, enhancing operational effectiveness, primarily where manpower and technical resources are limited.

Easy Implementation

RTF maintenance strategies are relatively easy to implement and can be integrated into operations without complex systemic changes or training requirements. The straightforward nature of RTF makes it appealing for many organizational settings.

This accessibility encourages broader adoption, especially in facilities that operate with limited maintenance departments or minimal financial resources for advanced predictive maintenance training.

Minimal Planning Requirements

Because the approach does not require detailed maintenance planning, organizations can integrate RTF strategies with minimal administrative requirements or extended documentation and resource allocation.

Maintenance teams can thereby reduce cumbersome planning processes and paperwork, maintaining focus on critical strategic considerations and proactive maintenance areas efficiently.

What Are the Challenges of Run-to-Failure Maintenance?

Unplanned Downtime and Lost Productivity

One major challenge of RTF lies in the unpredictability of equipment failure, which can lead to unplanned downtime and associated productivity losses. When critical or near-critical functions unexpectedly fail, recovery might take longer, affecting operational timelines.

This challenge requires careful consideration of RTF suitability and potential mitigations for ensuring unforeseen failures are managed timely and effectively without compromising key business operations.

Higher Repair Costs and Emergency Expenses

Although RTF minimizes preventive efforts, it may lead to higher repair and emergency expenses when failures do occur. Emergency repairs are often more costly and require more resources than planned preventive measures.

Proactive monitoring and quick response capabilities can help mitigate such unexpected expenses even within RTF maintenance models, ensuring satisfaction of strategic and financial commitments holistically.

Safety Hazards and Compliance Risks

RTF poses inherent risks if implemented for assets that impact safety or regulatory compliance, potentially resulting in hazardous conditions or operational infractions. It’s critical that RTF is restricted to equipment where failures don’t jeopardize safety or compliance.

Meticulous risk assessment and policy adherence actions are essential for bridging the gap between effective RTF implementation and maintaining workplace safety and regulatory commitments.

Longer Lead Times for Repairs

Sudden failures can cause unexpected downtime due to longer lead times necessary for sourcing parts or scheduling repairs, especially if spare parts aren’t readily available. Foresight about such possibilities ensures that RTF does not underline repair delays extensively.

Strategic inventories and supplier contracts are practical solutions to minimize such scenarios and maintain service continuity comparatively seamless despite potential failures.

Lack of Maintenance Data and Predictability

RTF lacks systematic data collection and tends to limit maintenance records, potentially impacting future asset performance analysis or predictive models. Comprehensive data tracking and quality insights become challenging to establish without dedicated monitoring systems.

Implementation of partial monitoring and performance tracking systems can enhance RTF’s predictive capacity, offering surveillance to reduce blind spots in operational readiness shifts or asset departures from standard performance expectations.

What Is Needed to Implement a Successful RTF Maintenance Program

Implementing a successful RTF maintenance program necessitates understanding your asset inventory and categorizing each piece of equipment by criticality and replacement cost. Thorough knowledge of operational impacts and failure probabilities are foundational to this strategy’s effectiveness.

Moreover, efficient spare parts management and maintaining a robust supplier network are crucial to minimize downtime and achieve rapid recovery times post-failure. Training maintenance staff to quickly respond and manage RTF assets competently further ensures this maintenance strategy’s success.

How Does a CMMS Help with Run-to-Failure Maintenance

A Computerized Maintenance Management System (CMMS) facilitates RTF maintenance by providing visibility into asset performance, historical trends, and inventory management. CMMS tools streamline identifying which assets can feasibly operate under an RTF model, minimizing disruptions.

Moreover, CMMS enables strategic planning and inventory monitoring, which are critical in structured RTF applications, supporting decisions based on data and operational logistics while maintaining an overarching view to guide strategy effectively.

Using Tractian’s CMMS To Plan Your RTF Maintenance Strategy

Tractian’s CMMS offers tailored solutions for planning and implementing effective RTF maintenance strategies. It integrates real-time monitoring, intuitive data visualization, and predictive analytics to optimize maintenance approach and resource allocations within RTF context.

Through Tractian’s interface, organizations can effectively manage their asset lists, track repair timelines, and ensure that parts availability doesn’t bottleneck operations, ultimately enhancing RTF application benefits and business continuity across various scenarios.

Related Articles

Aspect Description
Benefits Low cost, easy implementation, minimal planning, and time-saving for non-critical assets.
Challenges Unplanned downtime, higher repair costs, potential safety risks, and lack of data predictability.
Application Conditions Low-cost assets, minimal downtime impact, high repair cost to preventive maintenance ratio, and no safety risk.
Successful Implementation Needs Understanding asset criticality, effective spare parts management, and efficient supplier networks.
Supporting Tools Utilization of a CMMS like Tractian for strategic planning and inventory management.


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