G80XW/XF, G115XW/XF, G150XW/XF, G200XW/XF - 50HZ
OPERATION & MAINTENANCE MANUAL
83
G100XW/XF, G135 XW/XF, G170XW/XF, G225XW/XF - 60Hz
8. Tighten it by 3/4 to 1 turn with a fuel filter wrench.
CAUTION
If the cartridge is tightened excessively, the screw
may be distorted or the O-ring damaged.
PREVENTING FUEL CONTAMINATION
Most of the fuel contaminations encountered while using
the alternator engine are caused by water and
propagation of microbes.
Improper handling of fuel can lead to contamination.
Propagation of microbes requires water contained in the
fuel. To prevent propagation of microbes, keep the water
level as low as possible in the storage tank.
FUEL INJECTION PUMP
•
If the fuel injection pump housing is cracked or
damaged, replace it.
•
Ensure the idle operation and speed control lever’s
sealing device was not removed.
•
Ensure the idling or speed control lever’s sealing line
is not damaged.
•
Do not modify the fuel injection pump if the sealing
line is damaged, such modifications will void the
warranty.
•
If the fuel injection pump is found to be damaged, it
should only be repaired by authorised personnel.
•
The adjustment and test of the fuel injection pump
must be conducted using an appropriate tester.
CAUTION
If any parts that contain a seal ring (copper seal ring,
rubber coating seal ring, etc.) are disassembled, then
replace the seal ring with a new one. Failure to do so
may cause leakage in the fuel filter connections
preventing normal functioning.
AIR BLEEDING IN THE FUEL CIRCUIT
Air must be bled from the fuel system when the fuel filter
or injection pump are replaced, or air has entered the fuel
system due to insufficient fuel.
1. Turn the priming pump cap.
2. Bleed the fuel by manually operating the priming
pump with fuel filter outlet joint bolt and injection pump
bleeder screw loosened.
3. Press the feed pump cap repeatedly until fuel without
bubbles overflows from the bleeding plug screw.
4. After the air is removed, close the plug screws of the
filter and the pump.
5. Confirm the resistance of fuel delivery by repeatedly
pressing the feed pump cap. Apply pressure to the
priming pump cap and turn.
DANGER
Fuel is highly inflammable. Fire may occur if there
are naked flames or sparks near the engine when air
is bleeding into the fuel circuit from the priming
pump.
DV2213020A
EA9O4005
Priming pump