Hobart 60CU24, Operation And Maintenance Manual With Illustrated Parts List, Page: 66 / 234

OM-2098C / Operation and Maintenance Manual
60CU24 / Series 500060C / 400 Hz. Generator Set
April 01, 2005 Chapter 2-2
Page 2
Oil recommended for the diesel engines in this application is API Class CCMC.
Lubricating oil is discussed in detail in the engine manufacturer’s operation manual.
(3) Oil viscosity
A temperature and oil viscosity index chart is shown below. For operation at temperatures
consistently below -13ºF (-25ºC), refer to the engine manufacturer’s operation manual.
(4) Changing engine oil
Oil should be changed once after the first 50 - 150 hrs. of use, then every 250 hrs of engine
operation thereafter. The generator set is equipped with an hour meter to record actual engine
operating time. The ideal time to change engine oil is soon after a power delivery run, when the
engine is at operating temperature.
Change the oil filter element each time the oil is changed.
NOTE: If lubricating oil is drained immediately after the unit has been run for some time, most of the
sediment will be in suspension and will drain readily.
CAUTION
High ash oils may produce harmful deposits on valves that can cause valve burning.
CAUTION
Do not use solvents as flushing oils in running engines.
Change oil as follows:
a Provide an open container for catching the old oil below the oil drain plug. Container capacity
must be greater than 20 quarts (19 liters).
b The oil drain tube can be attained though a hole in the access panel underneath the
generator set.
c Open drain plug located in oil pan.
d While oil is draining, change the oil filter element. See instructions below.
(i) Provide a container for catching spilled oil from the filter.
(ii) Remove the oil filter by twisting counter-clockwise and inspect it.
NOTE: The gasket can stick to the filter head. Make sure it is removed before installing a new filter.