2 ZebraSkimmers.com

Hardness (ppm) Concentration (%) pH (pH) Tramp Oil (T/O) Chips (Ch)

H = High ValueL = Low Value

Coolant Troubleshooting GuideThis chart will assist you in troubleshooting coolant failures and was designed to provide a visual reference to indicate these failures and how they may be traced to one or multiple sources for correction. You may also reference what other failures may arise if one or more of the preventative maintenance issues are mismanaged or entirely neglected.

Testimonial - OPT Series Woody is “pleased with the brightness” of his Basic Refractometer he purchased after visiting Zebra at IMTS 2004. Woody Smith, Founder, Smith’s Machine, AL, Nov 2004

H

H L

L

H

L

H L

H

L L

H L

For instance, your coolant emits a foul odor. This failure is traced to poor management of Tramp Oil and pH. You may need to skim tramp oil more frequently (every day is recommended), aerate the fl uid (when not in use), and monitor pH levels (once a week) to prevent reoccurrence.You may also be experiencing other problems that are caused by the same neglect, such as split emulsions, rust, and skin sensitivity.

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