Kohler KD62V12 Operation And Maintenance Manual

Maintenance
Lubricants and operating fluids
– Sulfur content factor is defined in the table on KD fuel sulfur content factors (see: tab. 35,
page 149).
As an example:
– Standard oil change interval is 500 operating hours.
– Oil category is 3, so oil category factor is 2.
– Sulfur content is 1.3%, so sulfur content factor is ¼.
– Change interval = 500 * 2 * 1/4 = 250 hours
Lubricating oil monitoring
Close monitoring of lubricating oil quality brings benefits in several areas:
– Optimization of oil-change intervals
· Improves your economics
· Reduces environmental footprint
– Optimization of diesel engine availability
– Early detection of potential damage
When one of these criteria is no more fulfilled in operating lubricating oil, oil must be changed
immediately:
Criteria group
Criteria Maximum values
Contaminants Aluminum < 15 ppm
Iron < 40 ppm
Chromium < 10 ppm
Copper < 20 ppm
Lead < 25 ppm
Silicon < 15 ppm
Sodium < 20 ppm
Potassium
A)
< 25 ppm
A)
Other contaminants Water < 0.2%
Carbon < 3%
Fuel < 3%
Viscosity @ 40 °C (104 °F) 0.9 V
0
< V < 1.1 V
0
(V
0
= fresh oil viscosity
@ 100 °C (212 °F) 0.9 V
0
< V < 1.1 V
0
(V
0
= fresh oil viscosity
Viscosity index 0.88 Vi
0
< Vi < 1.12 Vi
0
(Vi
0
= fresh oil viscosity
Acid / Basic TAN & TBN TAN < TBN - 2 mgKOH/g
Oxidation < 25 abs.cm
-1
Tab. 36: KD lubricating oil change criteria
A)
Potassium is now incorporated in new-generation lubricating oils; conclusion must be
drawn only by having initial composition and evolution available.
Mineral lubricating oils
The use of mineral lubricating oils is strictly forbidden in Kohler KD diesel engines.
152
© 2022 by Kohler Co. All rights reserved.
KD62V12 33521030301_8_1 EN_US 2022-09

Kohler KD62V12 Specifications

General

Brand	Kohler
Model	KD62V12
Category	Engine
Language	English