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OPERATION IN HOT WEATHER
ENGINE BREAK-IN
Engine break-in as a result of proper
care during the
first hours of operation of a new or
rebuilt engine re¬
sults in the ideal fitting of all internal
moving metal
parts, which is essentia! for top
engine perfor¬
mance. For controlled engine
break-in:
1.
Operate the
equipment as it is intended to be
operated.
However, for the first 3 hours, if pos¬
sible,
operate the equipment at about half the
available engine power, occasionally operating
at full engine power for brief periods. Also, if
possible, avoid prolonged low-speed,
low-pow¬
er operation during engine break-in.
2. Proper
engine
oil
is especially critical during
break-in because
of
the higher engine temper¬
atures that can be expected. See REC¬
OMMENDED ENGINE OIL in Introduction.
Change the oil if it is not appropriate for the am¬
bient temperatures during the break-in period.
See Table 1.
3. Check the oil level twice a day or after every 4
hours of operation during the first 24 hours of
operation.
4. Change the oil and oil filter after the first 24
hours of operation.
5. See Table 2 for engine models which require
valve clearance adjustment after the first 50
hours of operation.
OPERATION IN DUSTY CONDITIONS
1. Keep the engine cooling fins and flywheel air in¬
let screen clean.
2. Perform air cleaner maintenance more often
than normal—as required. See Table 2.
3. Change the engine oil and oil filter more often
than normal. See Table 2.
Pay particular attention to the following items when
operating the engine in temperatures above 100° F
(38° C):
1. Keep the flywheel air inlet screen and cylinder
cooling fins clean. See to it that nothing ob¬
structs air flow to and from the engine.
2. Check the oil level more frequently.
3. Change the oil and oil filter more often than nor¬
mal. See Table 2.
4. Make
sure the engine oil viscosity is appropri¬
ate
for the ambient temperatures and change
the oii if necessary. See Table 1.
OPERATION IN COLD WEATHER
Pay particular attention to the following items when
operating the engine in temperatures below freez¬
ing:
1. Make sure the engine oil viscosity is appropri¬
ate for the ambient temperatures and change
the oil if necessary. See Table 1. If the tempera¬
ture drops before you have the chance to
change the oil, warm up the engine by moving
the equipment into a heated space before at¬
tempting to start the engine or change oil.
I
Awarning
I EXHAUST GAS IS DEADLY!
Never operate mobile engine-powered
equipment indoors without ample fresh air
ventilation.
2. Use fresh gasoline and fill the fuel tank after
each day's use to reduce problems with mois¬
ture condensation if this is a gasoline engine.
3. Keep the battery in a well-charged condition.
4. After each use push the equipment throttle
knob or lever to the middle of its speed range
so that if ice forms on the linkage during storage
it will be easier to start the engine.
7
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