ONL844T4E 3/18
13
Operating Procedures
BREAK-IN PERIOD
1. The first 100 hours on a new or reconditioned
engine are critical to its life and performance.
2. Frequently check the engine temperature and oil
pressure gauges (sets with Series 3 or 4 panels).
3. Oil consumption is greater during break-in as
piston rings take time to seat.
4. Break-In Oil Changes: Change engine oil and
filter at 50 hours. Change oil and filter again at
100 hours (consult Lubricants section for oil
recommendation), then every 250 hours.
Operating Instructions:
Maintain at least a 75% load on your generator
set for the first 100 hours. If this is not possible,
maintain no less than a 50% load to ensure proper
seating of the piston rings. Vary the load to help
seat the rings.
BEFORE STARTING
1. Check the water level by removing the pressure
cap from the radiator. In order to give the cooling
water an opportunity to expand, the level should
be about 1 in. (2.5 cm) below the filler cap sealing
surface when the engine is cold.
CAUTION: Use protective clothing and open the filler
cap carefully when the engine is warm to prevent
burns.
2. Check the oil level in the crankcase with the
dipstick. The oil level must be in the waffled area on
the stick. Never allow the level to go below this area.
Always add the same viscosity of oil as is already in
the crankcase.
3. Check the fuel tank level and open any fuel valves.
4.
NOTE: The battery switch must always be kept
ON while the engine is running. If the switch is
turned OFF while the engine is running, the
battery charging alternator could be ruined.
STARTING
1. Hold the Shutdown Bypass-Preheat switch in the
ON position for about 10 seconds before starting a
cold engine. Holding the switch too long can burn
out the glow plugs.
2. While holding the Shutdown Bypass-Preheat switch
in the ON position, push the Engine Control switch
to the START position.
3. As soon as the engine starts, release both switches. Do
not crank the starter for more than 10 seconds
consecutively. If the engine fails to start with the first
attempt, be sure that it has stopped completely before
re-engaging.
OPERATING
1. Units with Series 3 and Series 4 Control Panels:
check gauges often. Oil pressure must be above 15
PSI. The D.C. voltmeter should read between 11
and 15 volts at 80°F (25°C) ambient temperature.
Check the A.C. voltage and frequency meters (Series
4 panel). If the gauges deviate from normal levels,
shut down the generator set and investigate.
2. Let the unit run unloaded for a two to three minute
warm-up period.
3. Apply electrical load.
STOPPING
1. Remove electrical load from the generator set.
2. Run the engine for a 2 to 3 minute cool down period.
3. Hold the Engine Control switch to the STOP
position until the engine comes to a complete stop.
