How do I know if oil is contaminating my MicroBlaster®?
If you suspect that your MicroBlaster® is contaminated with oil, there are a few signs you can look for to confirm this. The air lines that run clean air through the MicroBlaster® are a milky white color when new. Exposure to oil will cause these to turn an orange or yellow color. Oil has a tendency to pool in the regulator assembly of the MicroBlaster®. This is a more difficult area to access, but by unscrewing the black plastic bonnet you will see traces of oil inside the regulator. When oil contamination becomes severe, abrasive media will adhere to the filter element. If the assembly is opened to expose the filter element, large clumps of abrasive indicating oil contamination can be found.