Lübeck — Case Study 06 / Technical Service · German automotive OEM
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06 Technical Service · German automotive OEM

Urgent recovery of three leak test units in under 5 hours

Sentinel I28 Urgent service Contamination Training

Three Sentinel I28 units contaminated with oil and dust. Internal O-rings were damaged. The production line had been down for hours and plant personnel had been unable to restore operation. Lübeck intervened the same day.

Client
German automotive OEM
Critical systems — transmissions and brakes
4-5 h
Total intervention time — 3 units repaired
~70%
Reduction in system contamination
0
Additional days of downtime — production restored same day
3
Units restored in a single intervention
// 01 · Challenge

Three contaminated units, line down, personnel without a solution

The plant manufactured critical automotive systems — engines, transmissions, and brakes. Three Sentinel I28 units showed internal contamination from accumulated oil and dust. Internal O-rings were damaged by the same contamination. The production line had been down for hours and plant personnel had been unable to restore operation.

3 Sentinel I28 units contaminated with oil and dust
Internal O-rings damaged
Production line down — hours without a solution
Plant personnel without diagnostic or repair capability
// 02 · Solution

Diagnosis, cleaning, parts, and training — all in one visit

Comprehensive same-day intervention: Lübeck arrived with original parts in stock and performed diagnosis, repair, and training in a single session.

1

Specialized technical diagnosis

Root cause identification: contamination from oil and dust in the internal pneumatic circuit of all 3 units, with accumulated seal damage.

2

Deep internal cleaning + seal replacement

Internal circuit cleaning and replacement of original O-rings available from Lübeck stock. No waiting for parts.

3

Cincinnati Test Systems External Exhaust

Installation of external exhaust system to prevent equipment re-contamination — preventive improvement that extends instrument service life.

4

Express personnel training

Leak test fundamentals, hermeticity verification, proper equipment use, preventive maintenance, and best practices to avoid contamination.

// 03 · Result

Production restored same day. Personnel trained.

Production restored same day — 3 units operational in 4-5 hours.
Approximate 70% reduction in contamination of the pneumatic system.
Decrease in recurring failures and improvement in result stability.
Increased equipment service life with External Exhaust installation.
Personnel trained to properly operate and maintain the instruments.

"Following this intervention, the client expressed interest in implementing preventive maintenance programs with Lübeck."

— Portfolio documentation, case 06
// Did your test equipment fail and the line is down?

Technical response
in under 24 hours.

If you have leak test equipment that's down, contaminated, or producing unstable results, we can diagnose and repair on-site — with original parts in stock.