Table of Contents
Advertisement
OPERATION
.
STARTING AND STOPPING THE ENGINE
Before starting engine for first time each day, make cer¬
tain that all points of lubrication and service have been
performed as instructed in lubrication and service
guide.
Make certain clutch pedal is depressed & P.T.O. shift
lever is in "OFF" position to actuate safety, start
switches.
Turn key switch to "GLOW" position and hold it until
the GLOW LAMP glows. (Normally, it glows within 20 -
30 seconds, but it may take more than 30' seconds
when ambient temperature is low.
Place throttle lever at mid speed position, and push
fuel shut-off control in.
Turn key switch to "START" position to crank engine.
When engine is warm, "GLOW" is not needed.
CAUTION:
To prevent personal injury never
attempt to start engine or operate tractor
without being in operator's seat. Never start
engine while standing on ground.
Be sure that the TRANSMISSION SHIFT LEVER is in
neutral, PTO shift lever is in OFF position and engine
clutch pedal is fully depressed.
NOTE:
As key switch is turned ON, the red engine oil
pressure indicator light should glow. If light fails to
glow, determine and correct cause of failure. After
engine starts, light should go out, indicating proper
engine oil pressure.
If engine fails to start after a short cranking period of
about 10 seconds, wait two minutes before cranking
again. This is to prevent overheating of the starting
motor. If after three attempts, the engine fails to start,
determine cause and correct failure.
FAST WARM-UP PERIOD
Condensation accumulates in any engine during initial
warm-up period or when operati ng at too low a tempera¬
ture. To reduce condensation and undue engine wear,
practice fast warm-up of engine temperature.
This warm-up period can be further reduced by operat¬
ing engine at approximately 1000 RPM and slightly
loading engine for first 5 to 10 minutes, such as driving
to field. Never operate tractor under full load until
engine has reached operating temperature.
Avoid unnecessary idling of engine, as this will cause
engine operating temperature to fall below its normal
operating range and cause rapid accumulation of
engine sludge. Idling also causes engine oil dilution
due to incomplete fuel burning as well as forming
deposits on valves and piston rings. It is best to stop
engine if tractor is to be idling for a time.
BREAK-IN-PERIOD
The engine is assembled and tested at the factory to
insure that it is ready for work; however, the engine
must be properly broke in to obtain the peak perfor¬
mance and long life that is built into the engine. Proper
break-in- will increase the power and prolong engine
life.
To properly break-in an engine merely means that the
engine should be operated at reduced loads for a
period of time (approximately 100 hours) long enough
for the piston rings to seat in with the cylinder walls
and form a lapped fit which would make a perfect seal
between pistons and cylinder walls before the engine
is used on rated load operations.
If an engine is operated at full load before it is broken
in, the high pressures and temperatures created from
the burning gases tend to escape between the piston
and cylinder wall into the engine crankcase, this is
called blow-by
Blow-by tends to heat and collapse the piston rings
which causes them to carbon up and stick to such
extent that they will never seat to the cylinder walls.
This causes the engine to have excessive oil consump¬
tion and a loss of power. In any event, the time required
for proper break-in is well paid for in added fuel econo¬
my and top engine performance.
The original fill of oil should be used approximately for
the first 20 hours of operation during the break-in
period and then drained. Any foreign material which
might accumulate in a new engine will be drained out.
Change the engine oil filter at this time.
Refill the engine oil sump with oil as recommended in
the "Lubrication and Service Guide". The oil used
should have a service classification of CD (DS Series
3) oil for the diesel engines (See special Lubrication
Information).
After the first 50 hours of operation, change the trans¬
mission and hydraulic oil and filter.
When breaking-in an engine, it is necessary to maintain
the proper operati ng temperature 160° to 220° F (710 to
104° C) to avoid the accumulation of condensation.
This practice should also be continued after the break-
in period. Condensation will damage and deteriorate
the vital parts of an engine to complete destruction if
allowed to accumulate for a period of time.
As the break-in period progresses, approximately after
first 50 hours of operation at reduced loads, load
36
Advertisement
Table of Contents
