International Harvester Company TD-24 Operator's Manual page 51

MAINTENANCE
LUBRICATING OIL FILTERS
The life of your engine depends upon
clean oil being circulated to all bearings.
Minute particles of abrasive matter even-
tually accumulate in the crankcase, and
lubricating oil undergoes changes which
produce sludge, acids, gums and other harm-
ful by-products. The purpose of the oil
filters is to separate and remove the dirt
and other foreign substances from the oil
to prevent these injurious materials from
being circulated to the engine. Keeping dirt
and oil irnpur it ies away from precision-
made engine parts will guard against undue
_~wear, operating troubles and upkeep expense.
The full-flow lubricating oil system of
this engine includes a "no-drain-back" fea-
ture which eliminates the necessity of pump-
ing the oil up into the filters when starting
the engine.
The filter cases are permanently bolted
to the filter base, with removable covers at
Filter
element
A-24866
Inlet
perforations
Filtered oil
outlet
Filtered oil
return
Illust.32
Cutaway view of filter
I. Oil inlet. 2. Replaceable filter e!~~ent.
3. Perforations to provide inlet for flIt ra-
tion process. 11-.Filtered oil out e •
S. Filtered oil return.
the tops. This prevents dirt from entering
the filter cases while changing the elements.
These oil filters keep the circulating
oil free from harmful contamination for 240
hours of operation under normal operating
conditions, at which time the crankcase oil
should be changed and the inexpensive filter
elements replaced.
It
may be necessary to
change oil and replace the filter elements
after shorter operating periods under severe
operating conditions such as extreme dust
conditions. low engine temperatures.
intermittent load operation with long stand-
by periods. excessively heavy loads where
high oil temperatures are the rule. or when
diesel fuel is used with high sulphur con-
tent.
Refer to "LUBRICATION GUIDE"
on pages 11-2 and 11-3
for the recommended
oil to use for the prevailing temperature.
Changing the Filter Elements
1.
Stop the engine.
2. Remove the filter base drain plug
and allow the filters to drain completely.
3. Clean off the filter case covers to
prevent dirt from dropping into the cases.
4. Unscrew and remove the case covers.
5. Remove the old elements.
.~
...
1
Illust.33
lifting cover to change element.
49