Service · Overhaul · Diagnostics
Service
We specialise in the overhaul of propulsion equipment for the marine and onshore industries. We carry out projects based on technical documentation, in a standard scope or tailored to the customer's individual needs.
Bergen engines
Diesel Engines · Gas Engines
Service backed by the supply of OEM parts. Periodic inspections from 1,000 h and major overhauls with class certificates.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of overhaul services
- Crankshaft deflection measurement
- Verification of crankshaft thrust bearing clearance
- Replacement or reconditioning of cylinder heads
- Replacement of crankshafts and camshafts
- Replacement of main, big-end and camshaft bearings
- Verification of connecting rods, pistons and cylinder liners
- Crack testing of components
- Honing of cylinder liners
- Replacement of fuel pumps and injectors
- Replacement and repair of engine-driven pumps
- Cleaning and leak testing of coolers
- Microgeometry
- Modifications
- Replacement of vibration dampers
- Valve clearance adjustment
- Adjustment
Scope of inspection
- Engine diagnostics using a parameter analyser
- Crankshaft deflection measurement
- Verification of crankshaft thrust bearing clearance
- Wear condition of main bearings, big-end bearings and cams
- Borescope inspection
- Indicator diagram
Reduction gearboxes
Finnøy · Flender · Kamewa · Kumera · Reintjes · Renk · Ulstein · Zamech
Complete or partial overhaul. Service work and diagnostics based on the manufacturer's documentation and guidelines.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of service
- Removal and installation of flexible couplings
- Removal and installation of SKF couplings
- Replacement of rolling and plain bearings
- Machining of components
- Sleeving of housing bearing seats
- Repair of sealing surfaces
- Crack testing of components
- Replacement of seals and correct setting
- Setting of clearances after overhaul
- Feedback adjustment
- Modifications
- Replacement of input and output shafts, contact pattern test
- Gearbox test after overhaul during sea trials
Scope of inspection
- Hydraulic system test
- Condition check of flexible couplings
- Verification of backlash, axial and radial clearances
- Leak test of the hydraulic control system
- Wear condition of plain bearings and the thrust bearing
- Visual inspection of gear wheels
Alignment
Gearboxes · Couplings · Shafts
Laser alignment of propulsion systems using certified instruments. Measurements in accordance with classification society requirements.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of service
- Azimuth thrusters
- Tunnel thrusters
- Combustion engines
- Electric motors
- Reduction gearboxes
- Pumps
- Compressors
- Many other industrial machines
Scope of inspection
- Verification of the relative position of machines
- Verification of abnormal bearing wear of a given machine
- Verification of elevated operating temperature of a machine component
CPP propeller shafts
Kamewa · Liaaen · MAN · Ulstein · Wärtsilä
Service and overhaul under supervision or as a complete job. Hydraulics verification, control system calibration. Conversion to EAL oils.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of service
- Removal and installation of SKF couplings
- Removal of propeller shafts
- Complete hub overhaul
- Replacement of blade seals
- Verification of axial and radial clearances
- Machining of components
- Crack testing of components
- Testing of the shaft after overhaul and verification of the hydraulic system
Scope of inspection
- Hydraulic system test
- Verification of axial and radial clearances
- Leak test of the hydraulic control system
- Hub wear condition
Tunnel thrusters
Brunvoll · Jastram · Kamewa · Kawasaki · Schottel · Ulstein · Veth · Zamech
Complete or partial overhaul. Control system calibration, fault diagnostics. Supply of specialised parts. Conversion to EAL oils.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of service
- Replacement of seals on the vertical and horizontal shafts
- Replacement of vertical and horizontal shafts
- Replacement of blade seals
- Replacement of bearings
- Machining of components
- Setting of clearances and tooth contact after overhaul
- Sleeving of housing bearing seats
- Repair of sealing surfaces
- Hub overhaul
- Feedback adjustment
- Hydraulic system adjustment
- Replacement of control system components
Scope of inspection
- Hydraulic system test
- Coupling condition check and alignment measurement
- Gear inspection and verification of backlash and tooth contact
- Visual gear inspection and measurement of bearing clearances
OD-Box hydraulic systems
Kamewa · MAN · Schottel · Ulstein · Wärtsilä · ZF
Service and condition assessment of OD-Box hydraulic systems. Calibration of propulsion systems for controllable pitch propellers.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of service
- Removal of the OD-Box valve and its components
- Verification of the wear condition of the OD-Box valve, plain bearings and shaft
- Reconditioning of the OD-Box valve and shaft
- Machining of mechanical components
- Replacement of bearings
- Replacement of seals
- Hydraulic system adjustment
Scope of inspection
- Verification of the wear condition of the OD-Box valve, plain bearings and shaft
- System leak test
- Hydraulic system verification
Propulsion control systems
Ulstein · Kamewa · Aquamaster · MAN
Fault diagnostics. Full calibration of ship propulsion during sea trials after dry-docking. Remote technical support 24/7.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of service
- Technical support
- Keeping systems no longer supported by their manufacturers fully operational
- Troubleshooting of control systems
- Retrofit and modernisation
- Commissioning of equipment
- Testing and calibration of sensors
- Adjustment and maintenance of feedback units, tunnel thrusters and gearboxes
- Verification and simulation of alarms under classification society supervision
- Tuning of control systems after dry-docking
- Tuning of control systems during sea trials
Scope of inspection
- System functionality verification
- Verification of active alarms
- Verification of critical spare parts
- Basic calibration
Steering gears
Frydenbø · Tenfjord
Service and overhaul. Periodic inspections, fault rectification. Hydraulic tests. Calibration of control systems and rudder angle indicators.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of service
- Removal of the main cover
- Removal of the rotor from the steering gear
- Replacement of seals
- Replacement of bearings
- Modifications
- Rotor installation
- Alignment of the steering gear with the rudder stock
- Overhaul of hydraulic motors and hydraulic system valves
- Hydraulic system adjustment
- Feedback adjustment
- Steering gear test after overhaul
Scope of inspection
- Hydraulic system test
- Leak test of the hydraulic control system – internal leakage
- Measurement of rudder turning time
- Thrust bearing verification
Vibration dampers
Spring · Viscous
Service, reconditioning and optimisation in marine and industrial engines. Technical advice, diagnostics and condition assessment.
The detailed scope of work is agreed individually, depending on the customer's needs.
The service performed is backed by a professional service report containing key descriptions and technical data.
Scope of service
- Damper removal
- Replacement of seals on joints
- Diagnostics
- Reconditioning, including spring replacement in spring dampers
- Restoring operating parameters
- Optimisation
- Analysis of damping properties
- Inspection and replacement of silicone oil in viscous dampers
- Damper installation
- Diagnostics of sealed dampers
Scope of inspection
- Technical condition assessment
- Inspection of spring pack parameters in spring dampers
- Wear assessment of mating components
- Leak testing of damper joints
Supply · Manufacture · Certification
Spare parts
We supply specialised parts for the marine and onshore industries. We manufacture components to the customer's specific and individual requirements.
VTMS Shop
You will find the full catalogue of spare parts for the marine and onshore industries in our online shop.
IACS certificates
Technical documentation and marine classification society certificates with every delivery.
Import / Export
We arrange import and export deliveries and handle customs formalities.
Custom manufacturing
We make non-standard parts for discontinued equipment — from design to delivery.
Network of manufacturers
We work with international and local manufacturers — a wide choice and fast delivery.
Planning · Execution · Acceptance
Project management
We adapt the scope of work to the customer's requirements — from documentation and technical assistance to testing and class certification. We are involved at every stage of the project.
Verification
Analysis of technical documentation and spare parts lists, and selection of special tools.
Preparation
Planning and organisation of overhaul work — schedule, resources, procedures.
Execution
Technical support during the work — supervision, monitoring, diagnostics.
Technical advice
Engineering consultations, technical analysis, recommendations.
Acceptance
Final tests — reports, handover and acceptance protocols, measurement tables.
Guarantees
Classification Society approval, warranty, insurance.
