Site Service

Our teams excel in site work by implementing effective preventative maintenance programs that encompass thorough field inspections and maintenance schedules. These programs are especially valuable for motors that cannot be easily or economically transported to workshops for servicing.

To ensure efficiency during site work, our approach is based on extensive maintenance experience, specialised tools, and in-depth product knowledge. This expertise enables us to accurately determine the required maintenance level and scope, whether it’s predefined based on time or assessed in conjunction with the observations of our skilled service technicians.

By combining our dedication to safety with our comprehensive maintenance strategies, we consistently deliver exceptional results in the field. Our commitment to a safe working environment remains a top priority, and it is the cornerstone of our success in providing reliable site maintenance solutions for our clients.

Motor Maintenance

motor management

Motor Stopped:

Disconnect and reconnect termination cables

Dismantle and reinstallation of DE and NDE end covers

Extract rotor out from stator (if required)

Reassembly of machine (if required)

Visual inspection on foundation, stator external, main and aux termination, heat exchanger and other accessories

Visual inspection on windings, slots wedges, lead joint, bracing.

Visual inspection on commutator and carbon brushes for DC machines

Visual inspection on slip ring and carbon brushes for slip ring machines

Replacement of anti-friction bearings or inspection of sleeve bearings.

General cleaning within terminal compartments.

Complete cleaning on windings with dry ice, fresh water or solvents

Bake dry with portable heating ventilation system

Static electric test on windings and accessories

Bearing fitting clearance check

Motor Running:

Record and review machine running parameters

Vibration measurements

Report submission

Motor Management

Motor Management – Operational

Spare parts covering the basic spare part need during commissioning and the first few years of operation.
Consumable, wear and tear parts.
Usually, parts can be replaced without dismantling the machines completely.

Example of operational spares:

Space heaters
Terminal box insulators
Stator RTD kits
Vibration sensors
Built in transformers
Leakage water detector
Heat exchanger
Slip rings
Bearing parts
Bearing temperature sensors
Tachometer
Brushes and brush holders

Motor Management – Capital

Large components with long delivery times.
Significant impact on downtime.
For reduced downtime in critical applications.
Large investment – risk analysis for down time to be made by customer.

Example of capital spares:

Complete stator
Complete rotor
Complete motor

Inspections

Testing and Commissioning Electric Motors

Motor Inspections

Site Diagnostics and measurements
Drive train analysis
In situ commutator, slip ring and brush-holder refurbishment.
Surface re-conditioning
Mica undercutting (commutators)
Bar edge chamfering (commutators)
Troubleshooting applications
Carbon brush survey
Helical groove edge chamfering (slip rings)
Out-of-round machining
Carbon brush pressure measurement
Redesign for carbon brush, brush-holder and commutator / slip ring system
Installation of features to improve the performance of your machines
Remote and wireless carbon brush wear monitoring (See i-Brush 1.1 System)
Dust extraction solutions

Electrical Testing

Elec Motor Commissioning

Electrical Testing

Field service static testing programs are commonly used for carrying out in depth analysis on the winding condition of electric motors, especially for machines for which it is not economical or practical to be removed for workshop service.

Inspection and maintenance scope is based on vast maintenance experience, dedicated electrical testing tools and product knowledge.

Stator:

Visual inspection
Symmetry Tests Including:
– Resistance
– Impedance
– Inductance
– Phase Angle
– Capacitance
– Insulation Resistance
– IF Current/Frequency
Step Voltage
Polarisation Index
Tan Delta
Partial Discharge (PD)

Rotor (if applicable):