above 10°F without using starting aids. If temperature is
Turn the start switch to START position. Start
below 10°F, a starting aid may be necessary and/or
the engine using starting aids as necessary.
If the engine fails to start after 30 seconds of
ETHER- - Ether is much more volatile than diesel fuel
cranking, allow the starter to cool for two minutes before
and is used to start combustion of the fuel-air mixture.
repeating the starting procedure.
Do not engage the starter when the
Ether is volatile and must be stored away
flywheel is moving.
from heat and direct sunlight See the
instructions on the container.
As the engine starts, release the start switch. It
will return to the RUN position.
Engine mounted either dispensers are available
commercially. Aerosol cans can also be used. Point the
Clearances and tolerances are designed for operating
can opening at the air inlet and give a quick spray while
conditions including operating temperature. After the
cranking the engine.
Too much ether will cause
engine is started it takes several minutes to establish the
excessively high pressure and detonation. Liquid ether
lubricating oil film and allow the moving parts to heat up
can be used by pouring a small amount on a cloth and
and expand. Loading a cold engine will cause shortened
holding the cloth in front of the air cleaner while the
service life; i.e., broken rings, seized pistons, etc. This
engine is cranking. Be sure the cloth is outside the air
warm up period allows time for another "walk-around"
cleaner and cannot be drawn into the engine.
check for leaks, etc.
DO NOT use ether after the engine has
Do not attempt repairs or adjustments
started. DO NOT inhale ether fumes.
while the engine is running.
In extremely cold climates, additional aids such as
COLD WEATHER STARTING
water heaters and battery heaters may be used. Contact
your Caterpillar dealer before installing submersible
These engine; are designed to start at temperatures
Remove the load from the engine.
Reduce speed to low idle for about 30 seconds.
Allow the engine to run at about half speed for
Stop the engine by turning the START switch to
five minutes. This allows internal temperatures
OFF. The governor control will not stop the
to reduce gradually and prevents the loss of
engine. If an engine is going to be put in
coolant by "afterboil".
storage see your Caterpillar dealer for storage
Gauges provide a "look" inside the engine. Be sure they
immediately if a sudden loss of oil pressure occurs.
are in good working order. You can determine what is
"normal" operating range by observing the gauges over a
WATER TEMPERATURE The operating temperature is
period of time. The cause of any sudden or significant
maintained by the water temperature regulator. High
coolant temperatures mean the cooling system is not
change in the readings should be determined and
dissipating enough engine heat.
The minimum operating temperature should not be below
OIL PRESSURE Oil pressure is normally greatest after
1750. If the temperature gauge continues to indicate
starting a cold engine. As the oil warms up the pressure
below 1750 while operating, have the gauge checked for
drops. Oil pressure is greater at operating speeds than at
accuracy and the thermostats checked for proper
low idle. Fluctuating readings can mean air in the oil or a
sticking pressure relief valve.
Stop the engine