1. Preventive Maintenance
The
preventive maintenance program is the key to any successful asset management
program. The preventive maintenance program reduces the amount of reactive
maintenance to a level low enough that the other initiatives in the asset
management process can be effective. However, most companies in the United States have problems keeping their PM program focused. In fact, surveys have shown that
only 20% of the companies in the United States believe their PM programs are
effective.
This
finding indicates that most companies need to focus on the basics of
maintenance if they are to achieve any type of asset management process.
Effective preventive maintenance activities would enable a company to achieve a
ratio of 80% (or more) proactive maintenance to 20% (or less) reactive
maintenance. Once the ratios are at least at this level, the other initiatives
in the asset management process become more effective. From the financial
perspective, reactive maintenance typically costs 2-to-4 times what proactive
maintenance costs, due to its inherent inefficiencies. Because the asset
management process is focused on Return on Investment (ROI), it is critical for
all companies to have a successful PM program as a foundation.
2. Stores and Procurement
The
stores and procurement programs must focus on providing the right parts at the
right time for the asset repairs and maintenance. The goal is to have enough
spare parts, without having too many spare parts. However, the interdependency
between the asset management initiatives becomes apparent: No stores and
procurement process can cost effectively service a reactive maintenance
process. However, if the majority of maintenance work is planned several weeks
in advance, the practices within the stores and procurement process can be
optimized.
What
level of performance is typical in companies today? Many companies see service
levels below 90%, which means stockouts run greater than 10% of requests made.
This service level leaves customers (maintenance) fending for themselves,
stockpiling personal stores and circumventing the standard procurement channels
to obtain their materials. These actions are not done for personal reasons, but
rather because they want to provide service to their customer (operations or
facilities). It is really a self-defense mechanism.
In
order to prevent this situation, it is necessary to institute the type of
stores controls that will allow the service levels to reach 95-to-97% with
complete accuracy of the data. When this level of stores and procurement
performance is achieved, then the next step in asset management is ready to be
taken.
3. Work Flow Systems
This
initiative in asset management involves documenting and tracking the
maintenance work that is performed. A work order system is used to initiate,
track, and record all maintenance and engineering activities. The work may
start as a request that needs approval. Once approved, the work is planned,
then scheduled, performed and finally recorded. Unless the discipline is in
place and enforced to follow this process, data is lost and true analysis can
never be performed.
Unfortunately,
many organizations record only a small part of their maintenance and
engineering actions; so much data is lost. When it comes time to perform an
analysis of the data, the analysis is incomplete and inaccurate. Management
does not support the decisions made, based on the data, and further degradation
of their confidence in the maintenance department occurs.
The
solution requires complete use of the work order system to record all
maintenance and engineering activities. Unless the data is tracked from work
request through completion, the data is fragmented and useless. If 100% of all
maintenance and engineering activities are tracked through the work order
system, then planning and scheduling can be effective.
Planning
and scheduling require someone to perform the following activities:
Review the work submitted
Approve the work
Plan the work activities
Schedule the work activities
Record the completed work activities
Unless
a disciplined process is followed for these steps, the productivity increases and
reduced equipment downtime never occur. This leaves the perception that
maintenance planning is a clerical function. In turn, the planning function
becomes vulnerable to the first cuts when any type of reduction in overhead
costs is examined. At least 80% of all maintenance work should be planned on a
weekly basis. In addition, the schedule compliance should be at least 90% on a
weekly basis.
4. Computerized Management Maintenance Systems(CMMS)
and Enterprise Asset Management Systems (EAM)
In
most companies, sufficient data is accumulated by the maintenance and
engineering functions to require the computerization of the data flow. This
computerization facilitates the collection, processing, and analysis of the
data. The use of Computerized Maintenance Management Systems (CMMS) or
Enterprise Asset Management Systems (EAM) has become popular in most countries
around the world. This software manages the functions discussed previously, and
provides support for asset management.
CMMS/EAM
systems have been utilized for almost a decade in some countries with mixed
results. A recent survey in the United States showed the majority of companies
utilizing less than 50% of their CMMS’ capabilities. What this means for these
companies is that the data they collect is highly suspect and probably highly
inaccurate. Unless this is corrected, the companies will never be able to
achieve true asset management because there will be no method of tracking asset
costs and calculating ROI. Figure 2-1 highlights the information flow in a
CMMS/EAM system.