Participants
–
Mike Alseei; Zack Bishop; Ron Brock;
Bob Campbell; Kevin Carabell; Chris Castanien; Jeff Clark; Mark Cooper; Pat
Fetterman; Eric Garzelloni; Ken Goshorn; Jim Gutzwiller; Jim Matasic; Jim
McCord;
Discussion
–
Eric Garzelloni reported that Mahle
expects to produce a batch of roughly 16,000 bearing sets sometime in the next
few weeks, but he did not have definitive timing.
Ken Goshorn reported that he had
measured backside roughness on several sets of bearings in an area near the oil
hole:
1)
Six sets pulled from Mack Service in
2)
Three sets of batch V bearings.
Measurements ranged from 46 to 72 microns, but a trace over the “deep scratch”
noted by Intertek on one bearing ranged 61-83.
3)
One set of T-10 bearings with the
80/20 tin/lead flashing. Measurement ranged 28 to 30
microns.
Overall observation is that the
bearings available in Mack Service Parts measure smoother than batch V, but
rougher than the desired historical finish. In addition, they did not look
visually different from batch V.
This led to a prolonged discussion
of potential ways forward and a plan to hold another teleconference on Monday,
January 31st. However, before that call was finalized, Mahle reported
they just received an email from their plant, and the 16K unit production run is
expected to be completed by the end of that week. Based on this new information,
the group decided to postpone the next teleconference until sometime late in the
week of January 31st- possibly either February 3rd or
4th.
Action items for
next teleconference –
Ken Goshorn will check the
disposition of the Mack Service Parts bearings in
Mahle will attempt to spot check
backside surface finish of parts from early, mid and late production from the
upcoming 16K bearing batch.
The group will consider a proposal
from Chris Castanien to exchange the current TEI bearing stock with 1800 pieces
from Mack Service Parts supply and examine a larger sample. Compare this data to
new data taken from the 16,000 unit batch which is about to be produced, and
then select the “best” available bearings to move
forward.
The goal is to
select a way forward during the next teleconference – whenever it is
held.
Respectfully
submitted,
Pat