Case Study 6
Lubemaster Cleans Gear Oil in Dump Trucks.

Lubemaster Cleans Gear Oil in CAT 793 Dump Truck

A German Creek Coal mine tested and trialled the Lubemaster OS600 fitted with a 5um final filter to provide assured cleanliness, for cleaning gear oil on a CAT 793 dump truck differentials.  The dump truck diffs hold 800 litres of gear oil and CAT specs were met 3 hours after commencement of cleaning.  Continuous circulation within the differential produced a washing effect, flushing contaminants from within the compartment.

Customer Feedback After Trial Completed

“G’day Fellas
The oil sample results for the modified filter cart trial on RD538 that was carried out on 16/09/2008 have arrived from the lab. In summary, the objective to achieve the recommended 18/15 ISO count (Caterpillar recommendation) was achieved and exceeded. Results are as follows;
Commenced at 10.00 AM, centrifuge only, three way valve switched to bypass filter, oil temperature at 64 deg C.

TIMESAMPLERESULTOIL TEMP
10.10 AMSample #120/1563 deg C
10.30 AMSample #220/1363 deg C
10.55 AMThree way valve moved to allow oil flow though 5 micron filter element.
11.00 AMSample #319/1264 deg C
11.30 AMSample #416/1164 deg C
12.00 PMSample #516/1163 deg C
1.00 PMSample #616/1163 deg C
2.00 PMSample #716/1162 deg C
3.00 PMSample #818/1462 deg C
3.55 PMSample #916/1161 deg C

End trial at 1600 hrs. Total filtering time = 6 hours.

In summary, the modified cart performed well. The inclusion of the larger capacity filter element made a drastic improvement in oil clean up time. The target level was achieved after only 90 minutes of operation.”

Regards

Condition Monitoring Technician

Oil Sample Prior to Filtering
Oil Sample after 1 hour filtering
Oil Sample after 3 hours filtering
Oil Sample after 7 hours filtering