CASE SERIES|MINING|DRILL RIGS · DIESEL ENGINES
FOUR TEST REPORTS · MARCH — MAY 2006
series of 4 acts
Drill rig diesels: UBSh-312A, BOOMER, AXERA — compression gain repeated
PRODUCTXADO gel revitalizantsfor diesel engines — oil system, 3 stages · for injection pumps — fuel system, 2 stages
TEST OBJECTDiesel engines of self-propelled drill rigsDeutz F4L912W — BOOMER 251, AXERA D05 · D243 — UBSh-312A No. 14 and No. 18
DOCUMENT TYPEFour technical reports
signed and stamped by the plant
signed and stamped by the plant
Key result
↑20-33%
compression across cylinders, 15.5-33 → 27-40 kgf/cm²
| RIG | ENGINE | LEVEL | ENGINE HOURS BETWEEN MEASUREMENTS | WHAT WAS MEASURED |
|---|---|---|---|---|
| BOOMER 251, unit No. 1 | Deutz F4L912W | 340 m | 107 engine hours | Compression on all four cylinders |
| AXERA D05, unit No. 2 | Deutz F4L912W | 840 m | 54 engine hours | Compression on all four cylinders, fuel consumption |
| UBSh-312A, unit No. 14 | D243 | 340 m | 96 engine hours | Compression on all four cylinders |
| UBSh-312A, unit No. 18 | D243 | 340 m | 107 engine hours | Compression on all four cylinders |
Cylinder compression — four rigs
| RIG | BEFORE TREATMENT, KGF/CM² | AFTER, KGF/CM² | GAIN, KGF/CM² | GAIN, % |
|---|---|---|---|---|
| BOOMER 251 No. 1, Deutz F4L912W | 29.0-33.0 | 37.5-39.5 | 6.5-8.5 | 20-29 |
| AXERA D05 No. 2, Deutz F4L912W | 31.0-32.0 | 37.0-40.0 | 5.0-9.0 | 16-29 |
| UBSh-312A No. 14, D243 | 15.5-22.1 | 27.0-29.5 | 7.4-13.5 | 34-87 |
| UBSh-312A No. 18, D243 | 22.0-23.0 | 27.0-29.0 | 4.2-6.0 | 18-27 |
Each cylinder was measured with a ZECA 363 diesel compression tester — before treatment and after the operating period. A gain was recorded on every cylinder measured on all four rigs.
Fuel consumption — AXERA D05 No. 2, fuel system
| PARAMETER | BEFORE TREATMENT | AFTER | CHANGE |
|---|---|---|---|
| Running time on 100 ml of fuel, idle | 3 min 48 s | 4 min 32 s | +44 s |
| Fuel consumption, idle | 1.58 l/h | 1.32 l/h | −0.26 l/h |
Measured with a stopwatch on a fixed fuel volume before treatment and after 54 engine hours. The fuel system was treated on all four rigs.
What the commissions recorded
All four commissions of CJSC Zaporizhzhia Iron Ore Plant recorded the same result: compression rose on every cylinder — by 4.2-6 and 7.4-13.5 kgf/cm² on the UBSh-312A rigs, by 6.5-8.5 on BOOMER 251, by 5-9 on AXERA D05, where idle fuel consumption fell from 1.58 to 1.32 l/h. The compression gain, in the wording of the reports, "indicates restoration of wear on the working surfaces of engine parts and, accordingly, an increase in engine life before overhaul"; the commissions estimated the added service life at 1.4-2×. The most worn diesel responded the strongest: a cylinder at 15.5 kgf/cm² reached 29.0 and matched its neighbours. The engines were not dismantled — the rigs stayed in normal service at the 340 and 840 m levels.
The results refer to Deutz F4L912W and D243 diesel engines of self-propelled drill rigs operating underground; with other equipment and other duty cycles the figures may differ. The originals of all four reports, signed and stamped by the plant, are published in full and available for download.
Current equivalent
- Revitalizant gel for diesel enginesDiesel engines
- Revitalizant gel for cylinder restorationEngine cylinders, deep wear
How such units are treated: