Sampling Practice Recommendations

The following table outlines the different tests that are available to the Construction industry. For more detail on the tests performed, click on the Test Kit name (ie, MOB 1, MOB 2).

Construction

Category Component Test Kit Interval Comments
Engines Diesel MOB 1 1 mon / 250 hr MOB 1 kit for routine analysis, MOB 2 for extended drain interval testing (includes TAN test to monitor oil degradation).
  Natural Gas MOB 1 1 mon / 250 hr "
  Gasoline MOB 1 1 mon / 250 hr WC-INS kits must be purchased for warranty/insurance claims.
Transmission Manual MOB 1 4 mon / 1000 hr Routine analysis kits.
  Automatic MOB 1 4 mon / 1000 hr "
  Power Take-Off MOB 1 4 mon / 1000 hr "
Power Trains Differential MOB 1 4 mon / 1000 hr Routine analysis kits.
  Planetary MOB 1 4 mon / 1000 hr Routine analysis kits.
  Final Drive MOB 1 4 mon / 1000 hr Routine analysis kits.
  Gearbox MOB 1 4 mon / 1000 hr Routine analysis kits.
  Funk Drive MOB 1 4 mon / 1000 hr Routine analysis kits.
  Swing Drive MOB 1 4 mon / 1000 hr Routine analysis kits.
  Travel MOB 1 4 mon / 1000 hr Routine analysis kits.
Hydraulic Systems Power Packs MOB 2 2 mon / 500 hr Includes Particle Count to monitor fluid cleanliness levels.
Fluids New unused oil MOB 1 every bulk shipment Establish baseline for your bulk oil shipments.
  Coolant COOL 12 mon / 3000 hr Test the condition of your coolant.
  Fuel FUEL every bulk shipment Test your bulk fuel shipments for contaminants and to verify fuel grade.
Special Sampling Considerations
Follow up on abnormal samples FILTER WearCheck advises that filter analysis be performed with resamples on equipment that tested abnormal. Filter analysis allows the diagnostician to locate and detect major wear situations. Filter analysis can be performed on any equipment that has a replaceable filter.
Extended oil drain interval testing MOB 2 Any equipment that is undergoing extended oil drain interval testing should use MOB 2 test kits. These kits include TAN testing to monitor the degradation of the oil, as well as the build up of acids in the oil. Oils with high TAN levels generally experience oil thickening, sludging, improper oil flow, and corrosion of components.
Samples for warranty claims INS The MOB 1 and MOB 2 kits are not meant for this purpose. The insurance (INS) test kit provides a complete analysis of the oil and filter. This allows WearCheck to assess the condition of the equipment, and of the fluid prior to the failure. A report is issued, specifically aimed towards validation or invalidation of a claim.
Large Diesel Engines MOB 3 WearCheck advises using MOB 3 kits for large engines (>100 litres of oil capacity). MOB 3 kits include the most comprehensive battery of tests to monitor the oil condition, wear condition, and contamination levels of the system.