Monday to Saturday - 8:00 -18:00 (CET/CEST)
Okuma CNC Preventive Maintenance
Scheduled checks that catch a failing component before it causes unplanned downtime — electronics, mechanics and lubrication, covered by one team.
Photo coming soon
What Is Okuma CNC Preventive Maintenance?
Reactive repair fixes a fault after it stops your machine. Preventive maintenance catches the marginal component before that happens — a fan that's slowing down but hasn't seized yet, a capacitor that's drifted but hasn't failed outright, a way lube unit running low on fresh oil, a ground connection that's degraded enough to cause noise but not enough to trip an alarm. None of these show up until they cause a problem, which is exactly why a scheduled check catches them while they're still cheap and easy to fix.
We're a full-service shop, not an electronics-only specialist. That means the same visit covers electronic checks — incoming voltage and power quality, fan condition in the control cabinet and CPU, grounding integrity, capacitor and connector health — alongside the mechanical and lubrication side: coolant tank cleaning, way lube unit servicing, hydraulic fluid and filter checks, and radiator cleaning. Okuma's own preventive maintenance guidance covers this same full range, from primary incoming voltage and heat exchanger fan cleaning through coolant tank cleaning, hydraulic fluid replacement, and fresh way lube.
We are an independent repair company. We are not an authorized Okuma dealer, distributor or service partner — we perform preventive maintenance, mechanical and electronic, on customer-owned equipment.
Current-generation OSP controls include Okuma's own Maintenance Suite, which tracks inspection schedules and gives on-screen alerts when maintenance is due. That's a genuinely useful scheduling tool, but it doesn't replace hands-on inspection — it tells you when to check, not what condition things are actually in. Our service is the hands-on half: real measurements, real physical inspection across both fluid and electronic systems, and a written report on what we found.
Diagnosis at a Glance
A quick way to check whether scheduled maintenance fits your situation, and what it actually involves.
Signs You Need This Service
Any of these usually mean a scheduled check is worth more than waiting for a failure.
- Machine hasn't had a full PM visit in a long time
- Machine runs continuously or across multiple shifts
- Had an intermittent fault repaired and want to prevent a repeat
- Would rather plan downtime than get surprised by it
- Machine runs a mission-critical part of production
- Cabinet or shop environment is dusty, humid or otherwise harsh
What We Check
Both the electronic and mechanical checks that catch a problem before it becomes a breakdown.
- Incoming voltage and power quality
- Heat exchanger and CPU fan condition
- Capacitor, connector and grounding integrity
- Coolant tank cleaning and hydraulic fluid check
- Way lube unit and fresh oil service
- Written findings and replacement recommendations
Preventive maintenance is available across every OSP generation — from legacy floppy-disk-era controls through the current OSP-P500. See our OSP controls guide for generation-specific detail.
What This Maintenance Covers
The specific checks we run, based on the full preventive maintenance program Okuma itself recommends.
Incoming Voltage Check
Confirms the power supply feeding the control is stable and within spec.
Fan Inspection & Cleaning
Heat exchanger and CPU fans checked and cleaned — a seized fan is a common cause of thermal failure.
Capacitor & Grounding Check
Tests capacitors against spec and confirms grounding is intact, before either causes a fault.
Coolant Tank Cleaning
Sludge and debris cleared out, fluid checked and topped up to the correct concentration.
Way Lube & Hydraulic Service
Lubrication unit drained and refilled with fresh oil; hydraulic fluid and filters checked.
Written PM Report
A clear record of what was checked, what we found, and what's worth watching next time.
How This Complements Okuma's Maintenance Suite
Current-generation OSP controls include Okuma's own Maintenance Suite, a built-in interface that tracks inspection schedules and shows recommended timing and locations directly on screen, with manuals a button-press away. It's a genuinely good scheduling tool — it makes sure maintenance doesn't get forgotten in the middle of a busy production run.
What it doesn't do is tell you the actual condition of a capacitor, a fan bearing, a ground connection, or the coolant sitting in your tank. The Maintenance Suite reminds you it's time to check; our service is the actual checking — real measurements, real physical inspection across both the electronics and the fluid systems, and a written finding you can act on. The two work well together: their system keeps the schedule, we do the hands-on work, mechanical and electronic alike.
On older, legacy-generation machines without a Maintenance Suite, we can help you build a sensible check schedule from scratch based on the machine's age, duty cycle and environment.
Photo coming soon
What Makes Our Maintenance Different
A few things that shape how we approach every scheduled check, regardless of machine age.
Measured, Not Assumed
Real voltage and capacitor measurements, not a quick visual glance and a checked box.
One Visit, Both Sides
Electronics and fluid systems checked in the same visit, without handing you off to a separate provider.
Scheduled, Not Reactive
Planned downtime you control, instead of a surprise breakdown that controls you.
OSP Controls We Maintain
Maintenance items differ somewhat by control generation — older controls without a built-in Maintenance Suite need a manually planned schedule. Find your specific generation below.
OSP-3000
Legacy LC series — tape and floppy-disk era controls.
OSP-5000LB/LC series — floppy disk and bubble memory era.
OSP-7000Cadet/Crown/early LB — no built-in maintenance scheduling.
OSP-U100LU/MX-V/MC-V/MA-V — transitional floppy-to-CF generation.
OSP-E100Last pre-THINC generation — no USB or Ethernet.
OSP-P100First P-series — open-architecture Windows-based control.
OSP-P200THINC-OSP global rollout — API and networking introduced.
OSP-P300Shared database, touchscreen — includes Maintenance Suite.
OSP-P500Current generation — full Maintenance Suite included.
Okuma Models We Support
Maintenance is control-generation-specific rather than machine-model-specific. Here are the model families we see most often.
LB & GENOS L
Lathes for shafts, gears and turned components.
GENOS M / MB & MAMachining centers for milled and prismatic parts.
MULTUS Mill-TurnMultitasking platforms machining complex parts in one setup.
MU-Series 5-AxisFive-axis centers for complex geometry and tight tolerances.
MCR Double-ColumnLarge-part machines for big, rigid workpieces.
MA-H HorizontalHorizontal centers built for long unattended runs.
Other Ways We Can Help
Preventive maintenance is one part of what we do — here's the rest of the site if a fault has already appeared.
CNC Control Repair
Board-level repair of OSP control boards, I/O modules and displays across every generation.
Testing & Diagnostics
Alarm code analysis and fault isolation before any repair decision is made.
Replacement & Overhaul
Full module rebuild with preventive replacement of every known wear item.
Every Component We Repair
Browse the complete catalog of boards, drives and modules we repair.
Spare Electronics
Tested, already-rebuilt spare units ready to ship when a fast swap beats a repair wait.
Industries We Serve
Automotive, aerospace, medical, defense and more — see how we support your sector.
Cooling & Lubrication Service
Deeper tank, pump and sensor service beyond routine PM checks.
All Services
Browse every repair and support service we offer, all in one place.
How This Maintenance Works
Three steps from a scheduled visit to a written record of what's healthy and what's not.
01
Schedule the Visit
Machine model, control generation, and how often you'd like checks performed.
02
Inspect & Measure
Voltage, fans, grounding, capacitors and connectors checked against real measurements, alongside coolant, way lube and hydraulic service.
03
Report & Recommend
A written record of findings, with clear recommendations on anything worth addressing.
Frequently Asked Questions
No. We are an independent repair company, not an authorized Okuma dealer, distributor or service partner. We perform preventive maintenance, mechanical and electronic, on customer-owned equipment.
Yes. We're a full-service shop, not an electronics-only specialist — the same PM visit covers way lube, hydraulic fluid, coolant tank cleaning and the electronics side together, based on the same full range of items Okuma itself recommends checking.
The Maintenance Suite is a genuinely useful scheduling tool, but it tells you when to check, not what condition things are actually in. It doesn't measure your capacitors, inspect your fans and connectors, or tell you what's in your coolant tank — that's the hands-on part we provide.
It depends on duty cycle, machine age and cabinet environment. A machine running multiple shifts in a harsh environment needs more frequent checks than one running lighter and cleaner. Tell us your situation and we'll recommend a realistic schedule.
Yes, where we have on-site delivery experience. See our country coverage for where we currently offer on-site visits.
Contact
Tell us your machine and schedule preferences — here's how to reach us directly.
Plan Ahead? Let's Schedule a Check
Machine model, duty cycle and environment — we'll recommend a realistic maintenance schedule covering both mechanics and electronics.
