MQ Power WHISPERWATT Series Operation Manual page 40

ENGINE FUEL FILTER REPLACEMENT
1. Clean the area around the fuel filter head.
2. Using a filter wrench (Figure 59), remove the fuel filter.
FUEL FILTER
HEAD
Figure 59. Fuel Filter Removal
3. Coat the rubber seal (gasket) surface of the fuel filter
with clean 15W-40 engine oil.
4. Install the new oil filter first by hand until it makes
contact with the filter head surface. Tighten it another
3/4 turn using the filter wrench.
FUEL FILTER/WATER SEPARATOR
Inspect the fuel filter/water separator daily. If the fuel filter/
water separator (Figure 60) has collected a significant
amount of water and sediment at the bottom of the cup
(indicator mark), it should be drained off.
PAGE 40 — DCA40SSKU4F2 60 HZ GENERATOR • OPERATION MANUAL — REV. #2 (08/30/22)
OIL
COAT SEAL
WITH THIN
ENGINE
FUEL FILTER LAYER OF OIL
CARTRIDGE
Draining The Fuel Water Separator
NOTICE
As water is collected, the red float goes up. When
the float has reached the indicator mark (Figure 60),
immediately drain the fuel water separator.
1. Place the Open/Close fuel valve lever (Figure 60) in
the CLOSED position.
2. Loosen the screw at the top of the filter head and also
loosen the drain cock located at the bottom of the filter.
3. Let the residue or foreign substances inside the cup
flow into a suitable container.
4. Tighten the screw and place the fuel valve lever in the
OPEN position.
CLOSED
INDICATOR
MARK
DRAIN
COCK
Figure 60. Fuel Filter/Water Separator
Cleaning The Fuel Water Separator
NOTICE
If air enters the fuel injection system of a diesel engine,
starting becomes impossible. After running out of fuel
or after disassembling the fuel system, air bleed the
fuel system in accordance with the KUBOTA Engine
Service Manual.
To restart the engine after running out of fuel, place
the Auto Start/Stop Switch in the MANUAL position.
Try again, if needed.
1. Place the fuel valve lever in the CLOSED position.
2. Remove the cup from the filter head assembly.
MAINTENANCE
SCREW
FILTER HEAD
FUEL VALVE
LEVER
CUP
FLOAT