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Maintenance = Preservation

published on 7 July 2026 Reading time : 6 minutes

A breakdown never comes at a good time…

It’s 7:15 a.m. on Monday morning. Production is running at full speed until, suddenly, a vacuum pump fails. The packaging line stops, operators are left waiting, and deliveries are delayed. The cause? Not a major technical failure, but overdue maintenance.

This is a situation we at DOVAC unfortunately encounter on a regular basis.

Many vacuum pumps and blowers run trouble-free for years. This quickly leads to the assumption that maintenance can wait a little longer. That’s precisely where the greatest risk lies. Wear and tear occurs gradually and often goes unnoticed until a minor issue escalates into a costly breakdown.

In many cases, this downtime could have been easily prevented with a timely scheduled maintenance check.

That’s why we’ve been saying for years:

Maintenance = Preservation.

A simple statement, but one that’s proven true day after day.

Why Preventive Maintenance Is So Important

Vacuum pumps, side-channel blowers, and turbo blowers are often at the heart of a production process. They are used for vacuum packaging, transportation, air knife drying, aeration, machine building, and numerous other industrial applications, among other things.

In many companies, these systems run daily, sometimes even 24 hours a day.

Meanwhile, filters gradually become clogged, oil degrades, bearings wear out, and seals lose their effectiveness. This is part of normal use. As long as this wear and tear is addressed in a timely manner, there is little cause for concern.

However, if maintenance is postponed, the risk of breakdowns continues to increase.
Preventive maintenance ensures that wear and tear is detected early and that parts are replaced before they cause problems. This keeps your system operating reliably and prevents unexpected production downtime.

Maintenance Is Not Just an Expense

Many companies focus primarily on the direct costs of maintenance.

But the real costs usually arise only when maintenance is not performed.

Consider, for example:

  • unexpected production downtime;
  • emergency repairs;
  • damage to internal components;
  • higher energy costs;
  • missed deliveries;
  • overtime to catch up on backlogs;
  • dissatisfied customers.

A scheduled maintenance check often takes only a few hours.

A malfunctioning system can shut down your production for days.

That is precisely why preventive maintenance is almost always the most cost-effective choice.

Don’t wait until it’s too late

A common remark is:

“The pump is still running just fine.”

That’s often true.

But wear and tear isn’t usually immediately visible or audible. By the time a pump or blower starts making unusual noises, gets hotter, or loses capacity, the wear and tear is often already significant.

By scheduling maintenance in a timely manner, you can avoid surprises.

Moreover, maintenance can be performed at a time that minimizes disruption to your production process.

Signs That Maintenance Is Needed

Are you unsure whether your system needs maintenance? Then watch for the following signs:

  • increasing energy consumption;
  • lower vacuum or air output;
  • unusual noises;
  • increased vibration;
  • higher operating temperatures;
  • oil leaks;
  • clogged filters;
  • longer startup time;
  • inconsistent performance;
  • a prolonged period without maintenance.

Do you recognize one or more of these signs? If so, it’s wise to have your system inspected before minor problems lead to major consequences.

Inspection, maintenance, repair, or overhaul?

These terms are often used interchangeably, even though they each serve a different purpose.

Inspection

During an inspection, we check the overall condition of the system. Any wear or abnormalities are identified early on, so that maintenance can be scheduled in a timely manner.

Preventive maintenance

Preventive maintenance involves checking or replacing items such as filters, oil, and wear parts. The goal is to prevent breakdowns and keep the system in optimal condition.

Repair

Is there a defect or malfunction? In that case, we repair only the parts necessary to restore the system to proper functioning.

Overhaul

When a system has been used intensively or multiple parts show signs of wear, a complete overhaul may be the best solution. During this process, the machine is thoroughly inspected and worn parts are replaced, ensuring it can function reliably for many years to come.

What Does a Maintenance Service at DOVAC Involve?

Proper maintenance involves much more than just changing the oil or replacing a filter.

Our service technicians follow a set procedure.

A maintenance service includes, among other things:

  1. Visual inspection of the system.
  2. Safely shutting down the machine.
  3. Removing the necessary components.
  4. Cleaning the system.
  5. Checking filters.
  6. Changing the oil if necessary.
  7. Inspecting bearings, seals, and moving parts.
  8. Replacing worn parts.
  9. Installing original spare parts.
  10. Final pressure check and performance test.
  11. Test run.
  12. Final inspection and reporting.

Thanks to this structured approach, our customers can be certain that nothing is overlooked.

Qualified Service Technicians

A vacuum pump or blower is a precision product.

That is why it is important that maintenance be performed by professionals with knowledge of the various technologies and brands.

Our service technicians have years of hands-on experience and receive ongoing training. As a result, they know exactly what to look for and can often identify early signs of wear or abnormalities before they lead to a malfunction.

This not only saves costs but also prevents unnecessary downtime.

Original spare parts make all the difference

A maintenance service is only as good as the parts used.

DOVAC maintains a large inventory of original spare parts for vacuum pumps, blowers, and complete vacuum systems.

Original parts offer significant advantages:

  • perfect fit;
  • maintenance of original performance;
  • maximum operational reliability;
  • longer service life;
  • lower risk of malfunctions.

Cheaper imitation parts may seem attractive at times, but they do not always meet the same tolerances or quality standards.

Ultimately, they can actually lead to additional wear and tear or higher maintenance costs.

The Right Oil Is Essential

In oil-lubricated vacuum pumps, oil plays a much greater role than many people realize.

The oil not only provides lubrication, but also:

  • cooling;
  • sealing;
  • protection against wear;
  • removal of contaminants;
  • optimal performance.

Over time, oil loses its properties. That is why timely replacement is essential.

DOVAC supplies only high-quality, genuine oils that meet the manufacturer’s specifications.

This ensures optimal performance and maximum service life for your system.

Final pressure check: the last - and perhaps most important - step

After every maintenance service, we verify that the system is functioning optimally again.

An important part of this is the final pressure check.

This allows us to verify that the vacuum pump or blower is once again delivering the correct performance and meets the manufacturer’s specifications.

Only when all measurements are in order is the system cleared for use.

This way, you can be sure that your machine has not only been serviced but is also actually performing at its best again.

Maintenance for virtually all major brands

Our service technicians maintain and overhaul vacuum pumps and blowers from a wide range of manufacturers on a daily basis.

Whether it’s an oil-lubricated vacuum pump, dry vacuum pump, liquid ring pump, side channel blower, or turbo blower, we have the knowledge, experience, and parts to professionally maintain your equipment.

In addition, we can perform maintenance both in our own workshop and on-site, depending on the situation and the customer’s preferences.

Why customers choose DOVAC

Companies choose DOVAC not only for our products, but especially for our service.

We combine:

  • years of practical experience;
  • qualified service technicians;
  • original spare parts;
  • original oil;
  • maintenance according to established procedures;
  • comprehensive final inspection;
  • rapid availability of parts;
  • personalized technical advice.

This ensures you have a maintenance partner who looks beyond simply replacing parts. Do you have questions about maintenance, repairs, or overhauls for your vacuum pump or blower? Feel free to contact our specialists. We’re happy to work with you to find the best solution for your system.

 

 

 

 

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