Engine Maintenance
98
2. Unscrew the priming pump handle and
manually prime the fuel system until air
bubbles are no longer visible in the fuel
coming out of the bleed screw.
3. Tighten the bleed screw and screw the priming
pump handle back in.
4. Loosen the injection lines at the injection
nozzles.
5. Crank the engine until fuel appears at the
nozzles.
6. Tighten the injection lines.
7. Start the engine and observe the engine run for
a few minutes. If the engine fails to start, or
starts but stops in a few minutes, repeat the
procedure.
Water in the Fuel System
Water in the fuel system can damage the injection
pump and nozzles. This damage will subsequently
cause more expensive damage to the engine. A
large accumulation of water in the bottom of the
fuel tank will stop a diesel engine. Water should
be drained off during scheduled maintenance
inspections. Let the tank set idle for an hour
before removing the drain plug from fuel tank. Let
water and fuel drain into a container until only
fuel is draining from tank. Replace drain plug. DO
NOT steam clean fuel tank caps.
NOTE: Some fuel tanks have a check valve in
the drain plug fitting. Push the check valve open
with a small screw driver to drain water and fuel.
Single Element Fuel Filter/Water
Separator Replacement
A single element fuel filter/water separator
removes contaminates and water from the fuel.
Two orifices in the filter head control the pressure
in the fuel system by allowing a certain amount of
fuel to return to the tank. One orifice is located in
the center of the filter head. It bleeds off water and
returns it to the fuel tank. The other orifice is
located off-center on the filter head and bleeds off
air.
1. Unscrew the filter using a strap wrench. Drain
filter. Properly dispose of fuel and filter.
2. Fill the new filter with clean fuel through one
of the small openings in the top of the filter
body. Do not use the center hole to add fuel to
the filter or unfiltered fuel may reach the
injection pump. Filling the filter with fuel
purges air from the filter.
3. Clean the filter head seal surface. Lubricate
filter seal with clean fuel.
4. Hand tighten the filter.
Draining Water from Fuel Tank
Water run through the system may damage the
injection pump or nozzles. Damage to the fuel
system will subsequently cause more expensive
damage to the engine. A large accumulation of
water in the bottom of the fuel tank will stop a
diesel engine. Water should be drained off during
scheduled maintenance inspections to prevent
breakdowns. Drain the water off after the fuel
tank and unit have remained idle for an hour.
1. Place a container under the fuel tank to catch
the draining water and fuel.
2. Remove the drain plug from the bottom of the
fuel tank.
NOTE: Some fuel tanks have a check valve in
the drain plug fitting. Push the check valve open
with a small screw driver to drain the tank.
3. Let the water and fuel drain into the container
until no water is visible in the fuel draining
from the tank. If the water and fuel do not
drain freely, the vent may be plugged. If so,
clean or replace the vent.
4. Install the drain plug.
Fuel Strainer
The fuel strainer removes the larger contaminant
particles from the fuel before it goes through the
fuel transfer pump and the fuel filter/water
separator. Inspect the fuel pre-strainer during
pretrip inspections and scheduled maintenance
inspections. Remove the bowl and clean the
screen if it looks dirty or if there is water in the
bowl. Fill the bowl with clean fuel when
reinstalling the screen and bowl.
Summary of Contents for SGCO 3000
Page 4: ......
Page 12: ...SGCO 3000 Genset Addendum 12...
Page 14: ...Genset Model Features 14...
Page 22: ...Service Guide 22...
Page 32: ...Unit Description Features Options 32...
Page 78: ...Operating Instructions 78...
Page 86: ...Electrical Maintenance 86...
Page 114: ...Engine Maintenance 114...
Page 124: ...Alternator Operation and Diagnosis 124...
Page 130: ...Structural Accessory Maintenance 130...
Page 138: ...Index 138...
Page 140: ...Electrical and SG Menu Flow Diagrams 140...
Page 141: ...141 SGCO 3000 Wiring Diagram Page 1 of 1...