Machinery Lubrication magazine published by Noria Corporation
Issue link: http://www.e-digitaleditions.com/i/544388
FIGURE 1. ASTM TEST METHODS Acid Number D664/D974 MPC D7843-12 Air Release D3427 RULER D6810/D6971 Demulsibility D1401 Rust D665 Foam D892 RPVOT D2272 Karl Fischer D6304 FIGURE 2. EQUIPMENT MONITORED FOR CONDITION-BASED OIL CHANGES EQUIPMENT GROUP TOTAL GALLONS PREVIOUS SERVICE FREQUENCY AVERAGE DRAIN FREQUENCY SAMPLE FREQUENCY Large Electric Motors 550 12 Months 5 Years Quarterly Large Air Compressors 515 6 Months 5 Years Quarterly Large Blowers 1,100 6 Months 5 Years Quarterly Ball-mill Gear Reducers 540 6 Months 1.5 - 2 Years Monthly Ball-mill Lube Lift Reservoirs 780 6 Months 1-1.5 Years Monthly ID Fan Bearing Reservoirs 640 12 Months 5 Years Quarterly FD Fan Bearing and Hydraulic Reservoirs 200 12 Months 5 Years Quarterly PA Fan Bearing Reservoirs 320 12 Months 5 Years Quarterly APH Gear Reducers 100 12 Months 1-2 Years Quarterly APH Support Bearings 300 12 Months 1-2 Years Quarterly APH Guide Bearings 48 12 Months 1-2 Years Quarterly Coal Yard Gear Reducers 425 6 Months 1-2 Years Quarterly Coal Yard Hydraulic Reservoirs 525 6 Months 2-3 Years Quarterly TOTAL GALLONS 6,043 Total gallons for six- and 12-month frequencies: 7,948 Additional Benefits Now that you have seen the potential cost avoidance of condi- tion-based oil changes, let's examine some of the other benefi ts. First and foremost is the freeing up of man-hours to perform proactive work on equipment that really needs it. You may also have a reduction in machine failures or infant mortality, since you are not unnecessarily exposing equipment to human error. Unfor- tunately, too many times something is left out, left loose or leaks afterward. The system will remain cleaner if you are not opening it up in a dirty industrial environment and stirring up sediment that has settled to the bottom of the reservoir during operation. Filter usage likely will be reduced as well, as fi lters will not be changed on a time frequency but rather when they need to be changed based on differential pressure. You also will leave less of a footprint on the environment by reducing the number of new lubricants and the waste stream of used oil for disposal. It is easy to see how you can create substantial cost avoidance by doing nothing more than utilizing all of the information your oil analysis report is providing. It should also be encouraging to know that you are generating enough cost avoidance to exceed the cost of the oil analysis program. If managed correctly, you can start reaping the benefi ts of condition-based oil changes by doing the right thing at the right time for the right reason. www.machinerylubrication.com | July-August 2015 | 17