PRE-HEATING AND STARTING
Extremes
in
starting temperatures may require ad-
ditional preheating. If engine fails to startquickly, rest
engine several seconds and repeat starting sequence.
CAUTION
If
engine does not start on first attempt, check
fuel system. Limit pre-heating to one minute
periods: longer periods can ruin the heater elements.
.1.
2.
3.
4.
For cold engine starting below
55"
F
(13" C),
depress manifold heater switch for one minute
only.
Push START-STOP switch to its START position.
Release switches after engine starts and reaches
speed.
Oil pressure should read at least 20 psi (pressure
relief valve is not adjustable).
On "standard" model, depress preheat switch for one minute and
then push start switch. Both switches must beengaged forstarting.
Do not apply overvoltage to the starting
circuit at any time. Overvoltage will destroy
the glow plugs and air heater in
2
to
3
seconds.
If
it becomes
necessary to use an additional source of power to start the set
-
use a
12
volt battery connected in parallel.
AUTOMATIC STARTING AND STOPPING
Optional controls may be used for automatic start and
stop, but must provide engine preheating.
The automatic control should have a time delay relay
to preheat glow plugs and the manifold heater for
about 20 seconds before cranking occurs. The time
delay relay prevents immediate engagement of the
starter in case the load is reapplied before the engine
stops.
STOPPING
1. Push fuel solenoid switch to
stop
position.
2.
Release switch when set stops. If stop circuit fails,
close fuel valve.
APPLYING LOAD
If
practicable, allow engine to warm up before
connecting a heavy load. Continuous overloading
causes high operating temperatures that can damage
the engine. The exhaust system may form carbon
deposits during operation at light loads; apply full
load occasionally before shut-down to prevent ex-
cessive carbon accumulations.
Try to connect the load in steps instead of full load at
one time.
EXERCISE
Infrequent use results in hard starting. Operate at
least
30
minutes each week. Run longer if battery
needs charging.
BREAK-IN PROCEDURE
The unit should be run in the following sequence:
1. One half hour at 1/2 load.
2.
One half hour at
3/4
load.
3. Full load.
Continuous running under one half load during the
first few hundred hours usually results in poor piston
ring seating, causing higher than normal oil con-
sumption and blowby.
Drain and replace the crankcaseoil afterfirat
50
hounof operation;
drain while the englne Is stlll hot.
INSPECTION
Check for alignment of engine and load. Misalign-
ment will cause excessivevibration and bearing wear.
Make a visual inspection of the entire installation.
VENTILATION
Good ventilation is needed to cool the engine and to
support combustion. Avoid recirculation of ven-
tilating air. See
SPEClFlCATlONS
for air flow re-
quirements and vent sizes.
Utilizing exhaust heat to warm a room or
compartment occupied by people is not
recommended due to possible leakage of exhaust gases.
EXHAUST GASES ARE DEADLY
71
POISONOUS!
EXHAUST
Pipe exhaust gas outside any enclosure
-
exhaust gas
is poisonous. Exhaust pipes must not terminate near
inlet vents. Avoid sharp bends. Use sweeping, large-
radius elbows. Use a section of seamless, flexible
tubing between the engine and any rigid pipe to
restrict vibration. Increase exhaust pipe one size for
each additional
10
feet (304.8 cm) in length.
BATTERIES
Check the condition of the starting batteries at least
every two weeks. See that connections are clean and
tight. A light coating of non-conductive grease will
retard corrosion at terminals. Keep the electrolyte at
the proper level above the plates by adding distilled
water. Check specific gravity; recharge if below 1.280.
DUST AND DIRT
1. Keep radiator free of dirt, etc.
2. Service air cleaner as frequently as necessary.
3. Change crankcase oil every
50
operating hours.
4. Keep
oil
and fuel in dust-tight containers.
5.
Keep governor linkage clean.
HIGH ALTITUDE
Maximum power will be reduced approximately
4
percent for each
1000
feet (310 m) above sea level,
after the first
1000
feet (310 m).
8
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