IE S001TECHNICAL REPORTS 2006–2021
ChME3 locomotives: diesel and compressor restored, the same units — again
Compression and combustion pressure rose, engine vibration dropped, the compressor built up pressure faster. 11–20 % — cylinder compression, 16–33 → 22–36 kgf/cm²; 9–17 % — peak combustion pressure, 20–49 → 29–50 kgf/cm²; 10–23 % — air system charging time by the compressor, 30–73 → 26–55 s; 36–45 % — engine block vibration velocity, 0.9–11.3 → 0.4–9.1 mm/s (2006–2021).
of the plant's railway shop
What was repeated on every unit
| LOCOMOTIVE | REPORT DATE | TREATMENT CYCLE | RUNNING HOURS BEFORE CONTROL MEASUREMENT |
|---|---|---|---|
| ChME3 No. 3719 | 2007 | first | 514 h |
| ChME3 No. 3719 | 05.08.2020 | repeat | 880 h |
| ChME3 No. 3721 | 12.06.2019 | first | 580 h |
| ChME3 No. 3721 | 28.07.2021 | repeat | 487 h |
| ChME3 No. 3722 | 15.05.2007 | first | 547 h |
| ChME3 No. 3722 | 11.11.2015 | repeat | 412 h |
| ChME3 No. 3722 | 01.08.2018 | third | 388 h |
| ChME3 No. 4041 | May 2007 | first | 472 h |
| ChME3 No. 4041 | 01.08.2018 | repeat | 412 h |
| ChME3 No. 4042 | 11.09.2006 | first | 585 h |
| ChME3 No. 4042 | 24.09.2008 | repeat | 537 h |
| ChME3 No. 4042 | 11.11.2015 | third | 533 h |
| ChME3 No. 4042 | 05.08.2020 | fourth | 600 h |
| ChME3 No. 4370 | 12.06.2019 | first | 540 h |
K6S310DR diesel: cylinder compression, kgf/cm²
| LOCOMOTIVE AND REPORT DATE | BEFORE TREATMENT | AFTER | GAIN |
|---|---|---|---|
| No. 4042 · 11.09.2006 | 24–32 | 26–36 | 13 % |
| No. 3719 · 2007 | 23–26 | 27–28 | 14 % |
| No. 3722 · 15.05.2007 | 26–28 | 28–30 | 8 % |
| No. 4041 · May 2007 | 20–24 | 22–30 | 18 % |
| No. 4042 · 24.09.2008 | 24–26 | 24–30 | 12 % |
| No. 3722 · 11.11.2015 | 20–25 | 32–34 | 52 % |
| No. 4042 · 11.11.2015 | 25–31 | 30–36 | 11 % |
| No. 3722 · 01.08.2018 | 20–32 | 30–35 | 20 % |
| No. 4041 · 01.08.2018 | 16–27 | 29–34 | 39 % |
| No. 3721 · 12.06.2019 | 25–32 | 28–34 | 9 % |
| No. 4370 · 12.06.2019 | 21–26 | 28–32 | 25 % |
| No. 3719 · 05.08.2020 | 26–33 | 30–36 | 12 % |
| No. 4042 · 05.08.2020 | 24–30 | 29–35 | 19 % |
| No. 3721 · 28.07.2021 | 24–30 | 27–32 | 11 % |
Measured with a KU 5501 maximeter on a warmed-up engine. Compression runs up against the factory nominal: the more worn the cylinder was, the larger the gain.
K6S310DR diesel: peak combustion pressure, kgf/cm²
| LOCOMOTIVE AND REPORT DATE | BEFORE TREATMENT | AFTER | GAIN |
|---|---|---|---|
| No. 4042 · 11.09.2006 | 30–40 | 34–44 | 13 % |
| No. 3719 · 2007 | 26–34 | 32–38 | 16 % |
| No. 3722 · 15.05.2007 | 34–40 | 36–40 | 5 % |
| No. 4041 · May 2007 | 26–40 | 30–44 | 12 % |
| No. 4042 · 24.09.2008 | 26–49 | 29–49 | 6 % |
| No. 3722 · 11.11.2015 | 24–32 | 36–49 | 54 % |
| No. 4042 · 11.11.2015 | 30–41 | 32–44 | 10 % |
| No. 3722 · 01.08.2018 | 20–48 | 30–50 | 10 % |
| No. 4041 · 01.08.2018 | 20–39 | 37–48 | 33 % |
| No. 3721 · 12.06.2019 | 25–41 | 30–46 | 9 % |
| No. 4370 · 12.06.2019 | 23–40 | 30–45 | 17 % |
| No. 3719 · 05.08.2020 | 33–45 | 36–49 | 9 % |
| No. 4042 · 05.08.2020 | 27–40 | 36–46 | 18 % |
| No. 3721 · 28.07.2021 | 26–40 | 29–45 | 10 % |
The same instrument and the same modes as for compression: combustion pressure rises in step with the restored sealing of the cylinders.
K6S310DR diesel: block vibration velocity, mm/s
| LOCOMOTIVE AND REPORT DATE | BEFORE TREATMENT | AFTER | REDUCTION |
|---|---|---|---|
| No. 4042 · 11.09.2006 | 7.3–11.3 | 3.3–9.1 | 45 % |
| No. 3719 · 2007 | 2.2–3.9 | 1.1–1.4 | 60 % |
| No. 3722 · 15.05.2007 | 4.5–5.7 | 2.2–3.5 | 40 % |
| No. 4041 · May 2007 | 2.2–4.1 | 1.0–1.9 | 59 % |
| No. 4042 · 24.09.2008 | 2.1–4.7 | 1.2–3.6 | 34 % |
| No. 3722 · 11.11.2015 | 1.5–3.6 | 0.8–2.3 | 43 % |
| No. 4042 · 11.11.2015 | 1.8–3.9 | 1.1–2.2 | 45 % |
| No. 3722 · 01.08.2018 | 1.1–1.4 | 0.7–0.9 | 41 % |
| No. 4041 · 01.08.2018 | 0.9–1.0 | 0.4–0.7 | 39 % |
| No. 3721 · 12.06.2019 | 3.8–5.1 | 2.1–3.7 | 31 % |
| No. 4370 · 12.06.2019 | 4.0–6.0 | 1.3–3.8 | 48 % |
| No. 3719 · 05.08.2020 | 1.1–4.2 | 0.8–2.6 | 36 % |
| No. 4042 · 05.08.2020 | 1.2–3.3 | 1.1–3.1 | 21 % |
| No. 3721 · 28.07.2021 | 4.9–9.9 | 2.2–6.0 | 39 % |
SENDING 911 vibrometer, six points on the engine block at idle: even cylinder operation is a direct consequence of the evened-out compression.
K-2LOK-1 compressor: air system charging time, s
| LOCOMOTIVE AND REPORT DATE | CHARGING | BEFORE | AFTER | REDUCTION |
|---|---|---|---|---|
| No. 4042 · 11.09.2006 | 7 → 8 kgf/cm² | 30 | 29 | 3 % |
| No. 3719 · 2007 | 7 → 8 kgf/cm² | 35 | 31 | 11 % |
| No. 3722 · 15.05.2007 | 7 → 8 kgf/cm² | 30 | 28 | 7 % |
| No. 4041 · May 2007 | 7 → 8 kgf/cm² | 36 | 32 | 11 % |
| No. 4042 · 24.09.2008 | 7 → 8 kgf/cm² | 30 | 27 | 10 % |
| No. 3722 · 11.11.2015 | 7 → 8 kgf/cm² | 36 | 26 | 28 % |
| No. 4042 · 11.11.2015 | 7 → 8 kgf/cm² | 41 | 33 | 20 % |
| No. 3722 · 01.08.2018 | 7 → 8 kgf/cm² | 54 | 43 | 20 % |
| No. 3721 · 12.06.2019 | 7 → 7.6 kgf/cm² | 25 | 20 | 20 % |
| No. 4370 · 12.06.2019 | 7 → 8 kgf/cm² | 52 | 41 | 21 % |
| No. 3719 · 05.08.2020 | 7 → 8 kgf/cm² | 34 | 31 | 9 % |
| No. 4042 · 05.08.2020 | 7 → 8 kgf/cm² | 53 | 35 | 34 % |
| No. 3721 · 28.07.2021 | 7 → 8 kgf/cm² | 73 | 55 | 25 % |
Stopwatch and the locomotive's standard pressure gauge. Charging time is the working measure of compressor output: fewer seconds mean more air delivered.
What the commissions recorded
Current equivalent
- Revitalizant gel for diesel enginesDiesel engines
- Revitalizant gel for compressors and bearingsCompressors · bearings · spindles
- Revitalizant gel for cylinder restorationEngine cylinders, deep wear
How such units are treated:
About this result:
Limits of this report: The results apply to ChME3 shunting locomotives with the K6S310DR diesel and the K-2LOK-1 air compressor under the conditions of the railway shop of an iron ore plant; on other equipment and in other operating modes the figures may differ.