
Maintenance Consultant
What is offered?
Maintenance consulting
Strategic maintenance planning
Consulting on operating and maintenance concepts
Fault analysis and root cause analysis
Optimization of maintenance processes
Training of operating and maintenance personnel
Remote video consultation
Who is behind DNtec?
-David Navarro.
-Senior Service Engineer and
Technical Trainer at Fawema GmbH.
-Maintenance Engineer since 1992.
-Available Languages: English, Spanish, German, French, Italian, Portuguese, Catalan.
Why DNtec was born?
In my day-to-day work at Fawema GmbH, I see many fields on which my expertise could be of help, specially on maintenance matters.
This is why I decided to open my side company, to be able to offer this expertise, which I can not offer from my position at Fawema.
My leitmotives are simplicity, efficiency and honesty.
With those three, you can achive anything you are aiming to.
I am open to hear your case, as long as it does not enter in conflict with my activities at Fawema.
Let´s talk.
Strategic Maintenance Planning
Focusing on:
- Which assets matter most to our operation?
- How much risk can we tolerate if something fails?
- When should we maintain, refurbish, or replace assets?
- How do we balance cost, uptime, safety, and performance over years?
Key elements
- Asset criticality
- Rank assets by impact on safety, production, cost, and compliance.
- Maintenance strategy selection
- Choose the right mix:
- Preventive (scheduled)
- Predictive (condition-based)
- Reliability-centered maintenance (RCM)
- Run-to-failure (where acceptable)
- Choose the right mix:
- Lifecycle planning
- Plan maintenance across the full asset life—from commissioning to replacement.
- Resource & budget planning
- Long-term staffing, skills, tools, spare parts, and capital planning.
- Risk management
- Reduce failures that cause downtime, safety incidents, or regulatory issues.
- Performance measurement
- Use KPIs like availability, MTBF, maintenance cost per unit, backlog health.
Consulting on operating and maintenance concepts (O&M)
Consulting on operating and maintenance (O&M) concepts is advisory work that helps an organization design, improve, or validate how an asset or facility will be operated and maintained—before or during its life in service.
In short: it’s about defining the “how” of running and maintaining something, so it performs well, costs less, and avoids nasty surprises.
What an O&M concept is
An operating and maintenance concept describes:
- How the system will be run (staffing, shifts, operating modes, procedures)
- How it will be maintained (maintenance strategies, intervals, responsibilities)
- Who does what (in-house vs contractors)
- What resources are needed (people, skills, tools, spares, systems)
- How performance, safety, and compliance are ensured
It’s the bridge between design and day-to-day operations.
Fault analysis and Root Cause Analysis (RCA)
A common failure observed in the industry, is to pursuit the fault analysis, and not looking for its Root Cause.
There is a huge difference between understanding what failed and how it failed, and understanding why it failed in the first place.
In short, Fault analysis tells you what broke. RCA tells you why it was allowed to break.
Optimization of maintenance processes
What gets optimized:
1. Maintenance strategy
- Remove unnecessary PM tasks
- Shift from reactive to preventive/predictive
- Apply RCM principles
- Align task frequency with actual failure behavior
2. Planning & scheduling
- Better job plans and work packages
- Higher schedule compliance
- Fewer emergency jobs
- Right work, right time
3. Work execution
- Standardized procedures
- Right tools and spares available
- Reduced waiting and rework
- Clear roles and handoffs
4. Spare parts & logistics
- Optimize inventory levels
- Reduce stockouts and overstock
- Improve material staging
5. Use of CMMS / EAM
- Clean asset hierarchy and master data
- Meaningful failure codes
- Accurate time and cost tracking
- Data-driven decision-making
6. Skills & organization
- Right staffing and competencies
- Clear accountability
- Smarter use of contractors
7. Continuous improvement
Feed lessons back into maintenance plans
Use KPIs (MTBF, wrench time, backlog)
Apply fault analysis and RCA
Training of operating and maintenance personnel
1. Operating training
- Normal, start-up, shutdown, and emergency operation
- Understanding system limits and alarms
- Correct responses to abnormal conditions
- Energy efficiency and asset protection
2. Maintenance training
Correct installation, alignment, lubrication, calibrationExperience the fusion of imagination and expertise with Études Architectural Solutions.
Preventive and predictive maintenance tasks
Fault diagnosis and troubleshooting
Use of tools, test equipment, and CMMS/EAM
“Études has saved us thousands of hours of work and has unlocked insights we never thought possible.”
Annie Steiner
CEO, Greenprint
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