|
Developing an
Effective Maintenance Program
by Kevan Slater, Trico Corporation
Modern maintenance
tools such as Reliability Centered Maintenance (RCM), Total
Productive Maintenance (TPM), Failure Modes and Effects Analysis
(FMEA), Asset Management, Condition Based Maintenance (CBM),
Planned Maintenance Optimization (PMO) and many others are being
implemented at an enormous expense by many companies to improve
the reliability and performance of their equipment. The benefits
if successful will reach wider than equipment availability and
the reduction in operating costs. It can increase the entire
business effectiveness by improving risk-safety, environmental
integrity, energy efficiency, product quality and customer
service.
Regardless of the strategy, the execution of maintenance tasks
remains paramount in the success of maintaining or even
increasing equipment reliability. Bottom line….cost effective
equipment reliability starts with the skill of the tradesperson.
While performing
recent maintenance audits, I observed that while many skilled
craftsmen are exceptionally well trained in areas of computer
skills, PLC’s programming, PdM technologies and equipment
specific operations, many of these individuals lack the basic
building blocks required for competent machine maintenance. The
foundation of reliability requires the execution of technically
sound machine maintenance tasks including proper handling and
installation of bearings, shaft alignment requirements,
balancing, lubrication requirements, proper fastening
procedures, etc….. The problem appears to be that we are
training our craftsmen with new and emerging technologies that
assist or monitor equipment condition but we have forgotten to
blend these with the critical basic skills of machinery
maintenance.
Reams of
historical data and case studies can be found to show that small
errors in mechanical and lubrication techniques remain the root
cause in the reduction of life and reliability of industrial
plant equipment. Most training programs today focus on detecting
the outcome of poor maintenance practices rather than placing
the training emphasis on these root causes. Equipment knowledge
and practical hands-on experience of a skilled craftsman remain
the key ingredients to increased cost effective equipment
reliability. Throughout North America, companies have failed to
provide a mechanism of ensuring that these skills are being
taught because for decades, it was simpler and cheaper to import
the skills from abroad.
A competent well
designed apprenticeship program remains the only proven solution
for ensuring the skill of the craftsman, but these programs
remain rare within North America and many of those in existence
are poorly funded. The reasons vary but it appears that the
corporate support to allow for an increased investment into
global company changes to accommodate the integrating of skills
development training has not been convinced of the potential
benefits to the entire organization.
Reliability based
maintenance improvement programs have lead to the creation of
many “certification” training classes. These courses, while
effective in fundamental knowledge development, lack the
hands-on maintenance task development skills. The end result…
“Certified" analysts/technicians who can pass tests but are
still very inexperienced in the art of machinery maintenance.
Another method of
skills development avoidance has allowed some corporations to
contract or outsource various maintenance services. These
contracting service organizations including the original
equipment suppliers remain under the same training constraints
and in some cases premiums are paid for inadequate experience of
maintenance crews resulting in reduced equipment reliability.
I believe these
basic skills can only be developed through competent, rigorously
controlled training programs that focus on how machines and
their components operate, their design requirements, effective
demonstrations and years of hands-on practical experience. To
enhance, assist and ensure adherence in the development of these
lost skills, an effective maintenance program requires detailed
procedures to provide appropriate work direction and ensure
safety and efficiency. All maintenance departments should
develop procedures that are clear, concise, complete, current,
and technically accurate. These will then provide the additional
benefits:
- Decreases
the probability of human errors
- Clearly
defines support requirements for easier job planning and
scheduling
- Provides
procedures as a valuable training aid for inexperienced
personnel
- Promotes
error-free performance through human factors
- Provides
reliable references for maintenance and engineering
departments
- Provides
template content for contract or outsourcing of maintenance
tasks
Technically sound
maintenance procedures that are combined with craftsman
proficient in the “Basic” skills will provide the necessary
foundation for a sustainable world-class maintenance program.
Cost effective equipment reliability will follow.
|