Maintenance Operation and Maintenance Manual
Lubricants and operating fluids
The test methods and limit values reveals the result of a single coolant sample analysis as
abnormal.
Kohler Co. recommends to perform coolant analysis of used coolant for the following minimal
parameters.
Control parameters for the coolant:
Product name
Lab-No
General information
Date of sample
Last fluid exchange
Added fluid during use
Hours of use
Machine operating hours
Analyse Method Unit
Optical appearance
Elements Additives (Ca, Mg, Si, B, P,
Ba, S, Na, K)
DIN 51399-1:2012-5 mg/kg
ppm
Elements wear (Fe, Cr, Cu, Sn, Al, Ni,
Pb, Mo, Mg, Ti, V)
DIN 51399-1:2012-5 mg/kg
ppm
Contamination (Si, Ca, Mg, Zn, Sn,
Mo)
DIN 51399-1:2012-5 mg/kg
ppm
Color Visual
Glycol DIN 51375-1, GC-Headspace, FTIR %
Corrosion Cu EN ISO 2160
Corrosion steel ISO 7120
Bacteria Dipslide test MERK count
Water hardness EN ISO 11885 mmol/l
ppm
Nitrate EN 12014 mg/kg
ppm
Nitrite EN 12014 mg/kg
ppm
Ph-value EN ISO 10523:2012-04
Pour point freezing point ISO 3016, ASTM 5985 °C
°F
* compared to fresh fluid
n.s. - not specified
Tab. 36: Coolant operational monitoring parameters
132
© 2018 by Kohler Co. All rights reserved.
KD83V16 33521030601_0_1 EN_US
2018-07