International Harvester Company TD-24 Operator's Manual page 43

PREVENTIVE MAINTENANCE
SELECTING THE PROPER LUBRICANTS
Lubricants for Crankcase, Air
Cleaner and Fuel Injection Pump
During cold weather the selection of
motor oils for use in the crankcase, air
cleaner and fuel injection pump should be
based on the lowest anticipated tempera-
ture for the day, to make starting easier.
For hot weather operation the selection
should be based on the highest anticipated
temperature. Refer to "LUBRICATION
GUIDE" on the following pages.
Changes, in Temperature.
It is not
necessary to change oil during operation to
the next lower grade when the temperature
falls into another temperature range (as
specified irr the "LUBRICATION GUIDE" on
the following pages), unless starting diffi-
culties are experienced. For example,
SAE-20 oil can be used instead of SAE-IO
in temperatures below 32
0
F. if no starting
difficulty is experienced. However, when
the air temperature is rising, change to the
next higher grade should be made promptly.
SAE-IO and 10- W oils should not be used
under continuous loads in air temperatures
above 45
0
F.
Lubrication When Shipped. Tractors
shipped to destinations in the United States
of America, Canada, and Mexico have all
the lubricant compartments filled with oil
at the factory. The lubricant in the crank-
case, air cleaner and fuel injection pump
is for preservative purposes only and is
not suitable for use in regular service. The
original oil should be drained from the
crankcase, air cleaner and fuel injection
pump and be replaced with the proper grade
for the prevailing temperature .
. _ Ita
.;~
Thinning the Crankcase Oil. When us-
ing lighter grades of lubricating oils there
may be a tendency for the oil in the crank-
case to gradually become thicker; in this
case it is desirable in cold weather to add
two quarts of kerosene to the crankcase
between specified oil changes, to maintain
easy cranking. Kerosene is preferable for
thinning motor oil because some diesel fuels
do not have a low pour point.
Change After Every 240 Hours. Change
oil in the crankcase after every 240 hours of
operation, or more frequently under operat-
ing conditions such as extreme dust condi
« •
tions, low engine temperatures, intermittent
load operation with long standby periods,
excessively heavy loads where high oil tem-
peratures are the rule, or when diesel fuel
is used with high sulphur content. Drain the
crankcase while the oil is warm so it will
drain freely and completely.
After changing oil, the engine should not
be operated at high speed or under load un-
til the new oil has ample time to reach all
bearings.
After changing to a lighter grade of oil,
the engine should be operated at least 5 to
10 minutes without load so that the lighter
oil is worked into the bearings and onto the
cylinder walls.
Lubricants for Transmission, Planet
Power Drive, Sprocket Drives, etc.
Various grades of lubricant are recom-
mended for the transmission and drives,
straight or diluted with kerosene, depending
on the prevailing temperatures. Refer to
the key to specifications of lubricants at the
top of the "LUBRICATION GUIDE" on the
following pages.
CAUTION: When filling the planet power
drive in the rear main frame, remove all
objects from breast pockets so as to prevent
their falling into the frame.
The oil in the transmission and drive
housings should be changed at least once a
year; however, do not operate the tractor
more than 960 hours without changing.
If the oil in the transmission and plan
power drive has been thinned with ker os e:
for operation in cold weather, the oil shoulc
be changed before the weather becomes hot.
Whenever the oil in the transmission
and planet power drive is changed, wash out
the housings with kerosene before refilling
with oil. First drain the old oil from these
housings, then fill the housings to the prop-
er level with kerosene. Operate the tractor
in low gear for several minutes. Remove
the drain plugs from these housings and
allow time for complete drainage of the
kerosene. Refill with the proper lubricant.
In the track rollers and idlers use lu-
bricant as specified in the "LUBRICATION
GUIDE" on the following pages, depending
upon the prevailing air temperature.
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