1 / 20

Test Monitoring Center Report to the Mack Test Surveillance Panel

Test Monitoring Center Report to the Mack Test Surveillance Panel. January 23, 2007 San Antonio, TX. Reference Oil Testing Summary. T-8 Test Activity Very Low 1 calibrated lab 2 calibrated stands Issue: Lab(s) now without reference oil!!. T-8 Reference Oil Issue.

jcuster
Download Presentation

Test Monitoring Center Report to the Mack Test Surveillance Panel

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Test Monitoring Center Reportto theMack Test Surveillance Panel January 23, 2007 San Antonio, TX

  2. Reference Oil Testing Summary • T-8 Test Activity • Very Low • 1 calibrated lab • 2 calibrated stands • Issue: Lab(s) now without reference oil!!

  3. T-8 Reference Oil Issue • Options (assuming the T-8 must live) • Use T-11 as a replacement • slow to develop and not much energy so far • Voluntarily re-distribute remaining 1004-3 • has already been requested • success far from certain and can’t be forced • Get a different reference oil • 1005-2 most likely the best fit

  4. TMC 1005-2 as T-8 Reference Oil • Positives • Five T-8 test results on 1005 • Plenty 1005-2 available • Labs would be able to run immediately

  5. TMC 1005-2 as T-8 Reference Oil • Negatives • Data is old (9 years) • Data is on a previous blend • Data is incomplete • Relative Viscosity (100% Shear) data doesn’t exist • Causes problems determining SAs (but not calibration status)

  6. TMC 1005-2 as T-8 Reference Oil • Possibilities • Targets • VI38 (mean & stdev) = 5.85 & 0.72 • RV48 (mean & stdev) = 2.09 & 0.15 • RV2 - none • Control Charts • Suggest temporary expansion of Shewhart K to 2.00 until five tests • Either suspend or freeze current RV2 SAs

  7. Reference Oil Testing Summary • T-11 Test Activity • Moderate • 5 calibrated labs • 6 calibrated stands • Oil 820-3 has been introduced • More on this in a few moments

  8. T-11 Correction Factors – Soot and MRV • T-11 Top Ring Change in May ’05 • Total of 34 tests • 30 tests on 820-2 • 4 tests on 820-3 • Current CFs were set at 20 tests on new hardware (oil 820-2)

  9. T-11 Correction Factors

  10. T-11 Correction Factors • Do we update (and possibly freeze) the correction factors for Soot at 12 cSt and MRV based on 30 tests?

  11. T-11 Reference Oil Update • TMC 820-3 has been introduced • 4 tests • 3 passes, 1 fail (very mild on Soot at 12) • TMC will update as data comes in • No new tests expected until April

  12. T-11 Reference Oil Update

  13. Reference Oil Testing Summary • T-12 Test Activity • Low • 6 calibrated labs • 9 calibrated stands • Test targets nearing update (n = 19) • Sure to require significant discussion

  14. Mack SP Items for Consideration • T-8 & T-11 Fuel Sulfur Measurements • QC measurements (not fuel spec sheet) • D 129 “or equivalent” (Sept. ’05) • not specific enough, undefined • D 129, D2622, D 4294, or D 5453 • under consideration? • if no action, then D 129 only

  15. Mack SP Items for Consideration • T-12 Piston Deposits • Currently mandatory • originally asked for in case C13 was a no-go • Mack SP voted to remove (3-1-9) • Change generates an Information Letter • Negative must be addressed before change is effective

  16. Mack SP Items for Consideration • T-11 New Stand Definition (Sect. 11.4) • Time limit • Currently shown as one year from cal test • Conflicts with: • Meeting minutes (Feb. ’05) and LTMS doc • Suspect clerical error • Suggest change to “one year from cal expiration”

  17. Mack SP Items for Consideration • T-11 Soot Calculations • Soot at 4, 12, and 15 cSt • Linear Interpolation • NOT specified in Section 11.6

  18. Mack SP Items for Consideration • T-11 Soot Calculations • Current • 11.6 Test Results—The test results are Soot Content at 4 cSt Viscosity Increase (%), Soot Content at 12 cSt Viscosity Increase (%), Soot Content at 15 cSt Viscosity Increase (%), and MRV Viscosity (cP)

  19. Mack SP Items for Consideration • T-11 Soot Calculations • Suggested Fix • 11.6 Test Results—The test results are Soot Content at 4 cSt Viscosity Increase (%), Soot Content at 12 cSt Viscosity Increase (%), Soot Content at 15 cSt Viscosity Increase (%), and MRV Viscosity (cP). • 11.6.1 Use linear interpolation for calculating soot contents (at a given viscosity increase), using new oil 90-pass DIN shear viscosity result as the minimum viscosity (sections 10.1.1 and 10.1.5) • Renumber following sections as appropriate (11.6.1 to 11.6.2).

  20. Action Item Update • T-12 to T-10 Merit Calculation • JAC asked to investigate where this should live • Answer: T-12 test method • BUT!!! • not until ballot clears Sub. B • Reports forms already updated

More Related