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REQUIREMENTS FOR PROPER OPERATION
LUBRICATION SYSTEM
1.
Engine oil
For engine lubrication, use diesel engine oil.
Diesel engine oils
are classified according to the API Specifications into grades CA,
CB, CC and CD.
Anyone of them is usable, but use of CC or higher
grades prepared by well-known makers is recommended.
2.
Engine oil viscosity
Use
oil
having
viscosity
best
suited
to
the
atmospheric
tem-
perature.
Use of an all-season oil SAEIOW-30 with minimum visco-
sity change under different temperatures is suggested.
20·C (6S·F) or higher
SAE 30 or
1~W-30
SAE 20 or 10W-30
S·C (41·F) or lower
SAE IOW-30
3. Oil pressure
The oil pressure during operation of the engine is indicated by
the oil pressure gauge.
During normal operation ....•.•..... Oil pressure will range between
50 and 70 PSI.
At the time of cranking •........•.. Pressure will rise proportion-
ately with speed.
4.
Engine oil change
To renew engine oil, discharge old oil through the sump drain hose
attached at front of engine while engine is still warm.
Drain old oil completely, replace the hose, plug the end securely
and add fresh oil through the oil inlet port on the valve cover.
After refilling oil, idle the engine for several minutes and stop.
Then check the quantity of oil by the oil level gauge.
Fill to
but not over the high mark on the dipstick.
Always observe old
oil as it is removed.
A yellow/grey emulsion indicates presence
of
water
in
the
oil.
While
this
condition
is
rare,
it
does
require prompt attention to prevent serious damage.
12
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