ENGINE
LUBRICATION
SELECTION OF OIL
It is extremely important that you select and use in your Case Riding Lawn Mower
Engine a detergent type, high quality, SD or SC API Service Classification Oil.
Always check engine oil level before each use of Riding Lawn Mower or every 5 hours
of operation, whichever occurs first .
OIL SAE VISCOSITY RATING
Air Temperatures
SAE
30 40°F {2°C)
and Above
SAE
5W-20 or 5W-30
between
40°F (2°C)
and 0°F (-18°C)
SAE low or
10W-30
Below 0°F (-18°C)
diluted 10% with Kerosene
OIL CHANGE
Drain and refill the crankcase after the first 5 hours of operation, and every 25
hours of operation thereafter. Check oil level daily and keep level to the full mark on the
dip stick.
If possible, run engine just prior to changing oil -- the oil will flow more freely and
carry away a greater amount of contaminant when hot.
If the engine service is severe - {frequent stopping and starting, high or low oper-
ating temperature) - the crankcase should be drained more often to prevent the formation
of sludge or harmful deposits in the engine.
A
CAUTION;
Disengage power to atlachment(s) and stop the en-
gine (motor) before making any repairs or adjustments.
IMPORTANT: 1. When the crankcase is drained, refill with 2-1/4 measured pints
(1.0 1} of oil.
2.
Operate the engine for a few minutes, allow sufficient time for the
oil to run down off the engine parts. Then check the oil level with
the dipstick.
3. This will prevent overfilling or underfilling the crankcase, either of
which can be detrimental to the engine service life and will give you
false oil consumption records.
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