Through generations, Karsten Moholt has developed solid expertise on all parts of your equipment’s life cycle.

Our consulting services can solve all your challenges, from developing a maintenance philosophy, purchasing and installing new equipment, modifying existing equipment, training and compliance with Ex requirements.

Our consulting services ensure more efficient maintenance management and minimise maintenance costs and downtime. With our guidance, you can be confident all your equipment has the best conditions for optimal performance.

Maintenance strategy

Reliability-based maintenance

Karsten Moholt has many years of experience with rotating and electrostatic machines, and together with our customers we will find the most efficient and suitable approach to extending the lifetime of the machines and implement condition-based maintenance programmes.

All facilities must be run and maintained in a way that stays within the business’ risk limit, meets operational goals and has the lowest total costs. This requires an optimised maintenance strategy that keeps your equipment maintained and in operation at the lowest possible cost with regard to work, spare parts, equipment and the consequences of deviations.

Reliability-centred maintenance (RCM) is a maintenance strategy for businesses that is implemented to optimise the maintenance programme and determine secure minimum maintenance levels. It is based on a criticality analysis of all equipment in the plant and is carried out in close collaboration with its employees.

When the maintenance programme is ready, all necessary maintenance jobs are scheduled. To make it efficient to follow up on, the maintenance programme is implemented into the customer’s own tools. This is the start of a continuous improvement process that ensures lifetime extension and improved performance for all the equipment in the plant.

If we can understand the details of what goes wrong, how it goes wrong, how likely it is to do so, how serious it is and what it costs the business, we are more likely to make better decisions to prevent the causes of failure, define the conditions on which repairs can be made and/or minimise the consequences of errors.

Reliability-centred maintenance (RCM) reduces the likelihood of error and may also help minimise the consequences of errors that do occur.

The right maintenance strategy cuts costs by facilitating smooth operations, less downtime, increased accessibility and improved productivity while reducing the resources required. RCM offers a structured framework to do just that.

Smooth operations enable reduced downtime, and increased accessibility, productivity and production while requiring fewer resources. RCM analysis provides a structured framework to do just that.

Analysis of Life-cycle costs (LCC)

Most maintenance programmes today are based on experience and expert assessments. This can lead to a non-standard approach based on individual experience and ultimately to a less optimal equipment performance. This is why maintenance managers need a decision support tool to optimise the maintenance strategy at equipment or plant level.

An analysis of life cycle costs enables maintenance managers to carry out repairs, replacements and retention by using the available data on operations and maintenance and optimising the total life-cycle costs. This allows for a systematic approach that is needed to ensure defined performance levels and maximise the cost-efficiency of a type of equipment or an entire plant.

A cost analysis of the life cycle involves analysing the cost of a system or component over its entire lifetime. Typical costs for a system may include:

  • Acquisition costs (or design and development costs)
  • Operating expenses
  • Costs due to errors
  • Costs of repairs
  • Downtime costs
  • Production issues
  • Maintenance costs
  • Costs for corrective maintenance
  • Costs for preventive maintenance
  • Costs for predictive maintenance
  • Decommissioning costs

Installation and start-up

Equipment sales

Karsten Moholt is the agency and distributor for most well known brands that produce electromechanical machines and parts: ABB, Siemens, GE, Basler, Schaeffler, Leroy-Somer and Transf Eco.

Karsten Moholt also has extensive experience with one-to-one replacement of:

  • Motors
  • Pumps
  • Generators
  • Transformers
  • Voltage regulators and relays
  • Forklifts
  • Quality measurements and power monitoring equipment
  • Spare parts for all the above equipment

Equipment or spare part deliveries can be vital to maintenance and production. Karsten Moholt will help you get the equipment you need as fast as possible.

Installation and commissioning

Karsten Moholt has competent and experienced employees that can install

  • Mechanical installations
  • Plumbing and tubing
  • Electrical installations
  • Instrumentation

All installations are end with testing and start-up of the installed systems and products. This ensures that the equipment and system is in line with design, regulations and expected performance.

Karsten Moholt combines its unique services in repairing electrical equipment, condition monitoring, and workshop and field service to offer its customers complete solutions. Installation and commissioning are carried out by highly competent personnel with broad experience in their field.

Engineering og modifications

With its interdisciplinary expertise, Karsten Moholt can carry out electrical, mechanical, plumbing, automation and instrumentation projects and engineering.

As a part of our engineering work we can do everything from specifications and ordering equipment, documentation, installation, start-up and delivery for a third-party evaluation.

Our project planning includes progress, milestones and deadlines, resource planning, follow-up, reports, cost control, risk assessment and change management.

We control the progress of the projects based on effective planning and resource management. This allows us to predict and eliminate risk at an early stage to ensure that progress is made as planned.

3D scanning

To detect component wear and control the quality of component documentation against CAD models, we need precise scanning. When replacing components a production base is also needed to adapt to complex shapes and surfaces.

By using 3D scanners it is possible to map the shape and surface of motors, components and equipment with up to 0.044 mm accuracy.

The scan generates CAD drawings that can be used to measure defects due to wear, ensure the quality of the production, reverse engineer new components and acquire digital documentation of components.

We have experience with 3D scanning from a number of projects. Karsten Moholt AS is a Norwegian retailer in 3D scanning with portable equipment from the quality supplier Creaform.


EX expertise

Karsten Moholt has extensive knowledge about Ex equipment and can help you inspect and register Ex equipment. Karsten Moholt is the only repair and overhaul workshop in Scandinavia that is IECEx certified to repair and overhaul Ex equipment according to international standards: IEC 60079- 19 (repairs and overhauls of Ex-labelled equipment), IEC 60079-17 (Ex inspection), IEC 60079-14 (Ex installation).

When Karsten Moholt takes care of your Ex equipment you can be sure that the barrier on your equipment remains intact, that the costs remain predictable and that you get reliable, stable machinery.


Karsten Moholt has extensive Ex expertise and can help customers inspect and register Ex equipment on board. All inspections and registrations are carried out according to procedures approved by DNV.

Ex registers can be made for:

  • New rigs built in Norway or abroad – to create the complete Ex register which is required when starting up new rigs.
  • Older rigs – to keep the Ex register up to date and ensure that all changes made to the rig during the year are registered according to regulations.

Karsten Moholt’s personnel will check existing Ex equipment to see if it has been maintained in accordance with applicable laws and regulations.

A new Ex register will be prepared in a DNV-approved format.

We will help contact equipment suppliers, if necessary, to obtain missing documentation.


Explosion-proof equipment (Ex equipment) is equipment that cannot act as a source of ignition if faults occur on site. For that reason, there are minimum requirements for repair and maintenance of so-called ‘Ex equipment’ to ensure intact barriers after repairs and maintenance!

Our workshop is IECEx, UL and PRESAFE (NEMKO) approved and our personnel are certified to repair, install and maintain in accordance with IECEx & COMPEx. This means that we can handle all your Ex equipment and issue a declaration of conformity upon completing the repairs.

Recertification of your equipment is your guarantee that the Ex protection (the barrier) is intact should you ever need it – in case of an undesired event/oil leak on site!

Contact us at + 47 996 31 743 for questions about Ex equipment and controlling ignition sources!

Courses and training

Course in vibration analysis

Our basic course in mechanical condition monitoring is suitable for those who are new to condition monitoring or just need a basic understanding of vibration analysis, and for people who read and interpret vibration reports.

Our category I–III courses in accordance with ISO 18436-2 and ASNT Level I–III will help engineers, PDM Programme Managers and other maintenance personnel understand condition monitoring with focus on vibration analysis and condition monitoring.

We also tailor courses in mechanical condition monitoring according to the customer’s wishes.

The courses are held by experienced instructors with extensive knowledge about vibration analysis. Examples and case studies from a number of industries are used, and our course materials, 3D animations and simulators make the course content easier to understand.

For more information, contact us at: or phone: +47 55 94 34 00

Course in shaft alignment

Karsten Moholt offers beginner courses in shaft alignment. The course focuses on laser alignment.

The course will cover horizontal shaft alignment, vertical shaft alignment, soft foot, different couplings, adjustment procedures, shimming and casting, tolerance, thermal growth and report generation.

Contact us at or phone: +47 55 94 34 00

Customised courses

Karsten Moholt offers customised courses to increase your expertise in rotating electromechanical equipment. We offer Ex courses, electrical condition monitoring, transformers, DC motors, AC motors, voltage regulators, (AVR) and condition-based maintenance.

Contact us at or phone: +47 55 94 34 00