Generator Servicing & Maintenance
Keep your generator ready for the day you need it. Servicing, repairs, inspections and load bank testing for standby and prime power generators.
Whether your generators are out on hire, running a site every day or sitting on standby waiting for a power cut, they all need the same thing: regular servicing by an engineer who knows them inside out.
VoltiMech services diesel generators from small portable sets up to 2MW, including Cummins, Mitsubishi and [other makes]. You deal directly with the engineer doing the work, and every machine gets a written service report showing its machine ID, engine hours, work done and next service due.
Hire Fleet Operators
Keep your fleet on hire, not in the yard. We work alongside your workshop or take servicing off your hands completely.
- Off-hire inspections and services between hires, so machines go back out quickly
- Planned servicing at your depot, with several machines done per visit
- On-site breakdown support for machines out on hire
- Controller programming, AMF and synchronising setup
- Service records for every machine by machine ID, so you always know what’s due
- Inspection and testing of distribution boards and cables
- Load bank testing before machines go out on hire
Owner-Operators
For contractors, event companies, farms and off-grid sites running their own generators day in, day out.
- Hours-based servicing to the manufacturer’s schedule, done on site so the machine keeps working
- Planned visits around your working pattern to keep downtime to a minimum
- Repairs, fault finding and controller faults
- Advice on sizing, fuel use and reducing running hours, including solar and battery hybrid options
Standby Generators
For sites where the generator has to work the moment the mains fails: warehouses, care homes, data rooms, offices and farms.
- Annual, six-monthly or quarterly servicing
- AMF changeover testing under real conditions
- Load bank testing to prevent wet stacking and prove the set can take the full load
- Condition reports for insurers and compliance
Who We Service
What’s Included in a Service
- Engine oil, oil filter, fuel filters and air filter changed
- Coolant level, condition and antifreeze strength checked and system inspected
- Belts, hoses and exhaust system inspected
- Battery and charger tested
- Fuel system checked for water and contamination
- Alternator and electrical connections inspected
- Controller checked, with alarms and protection settings checked & tested
- Test run on load, with voltage and frequency checked
- AMF changeover tested (where fitted)
- Digital service report with machine ID, engine hours, work done, any faults found and next service due
* All subject to manufacturers guidence and requirements
Stage V Diagnostics
VoltiMech has invested heavily in dealer level diagnostic systems for Stage V Engines, AdBlue, DOC/DPF/SCR systems meaning no more expensive main dealer call outs and long wait times.
Inspection & Testing
Condition surveys, off-hire checks and pre-purchase inspections.
Repairs & Fault Finding
Other Services
Starting problems, alarms, shutdowns, leaks and controller faults.
Load Bank Testing
A full-load test with a digital report, available as a one-off or as part of a plan.
Upgrades & Controller Programming
Controller replacements, AMF upgrades, synchronising and remote monitoring.
Based in Northampton, we work across Northamptonshire, the Midlands and the surrounding counties, including Northampton, Milton Keynes, Wellingborough, Kettering, Corby, Daventry, Rugby, Bedford and Leicester. We also take on UK-wide fleet and multi-site contracts.
Areas We Cover
FAQ
Got a question? Can't find what you are looking for? Get in touch and we can help you with your questions.
How often should a generator be serviced?
For working machines, service by engine hours to the manufacturer’s schedule. Standby sets need at least an annual service, and critical sites are better on six-monthly or quarterly visits. We’ll recommend an interval to suit how each machine is used.
Can you work at our depot alongside our own fitters?
Yes. We can cover servicing peaks, holiday cover or specialist work like controller programming and synchronising, or we can take on the full fleet.
Can you attend machines that are out on hire?
Yes. We can service or repair machines on your customer’s site to keep them running and avoid a swap-out.
Why do I need a load bank test?
Generators that run on light load build up carbon and wet stacking. A load bank test runs the machine at full output to prove it can take the load, and to clean it out. This is especially critical for stage v machines when on light load.
Do you service all makes?
Yes, we work on most makes of diesel generator [and controllers such as DeepSea and ComAp]. If you’re not sure, send us the make and model.
Do you service generators at private homes?
Yes. We service [diesel, petrol and LPG] standby generators at homes, farms and rural properties, and we can also supply and install changeover switches so your generator connects to your home safely.