MQ Power WHISPERWATT DCA600SSV4F3 Operation Manual page 52

3. Clean the filter mating surface on the filter bracket
(Figure 82).
4. Lubricate the seal on the new fuel filter with diesel fuel
and install the new fuel filter. Tighten the fuel filter in
accordance with the instructions on the fuel filter.
5. If necessary, vent the fuel system. Refer to the
Bleeding the Fuel System section.
Fuel Prefilter Replacement
1. Remove the cable (Figure 83) from the water trap
sensor.
PREFILTER
Figure 83. Fuel Prefilter Replacement
2. Remove the prefilter (Figure 83) from the filter housing.
Collect any spilled fuel in a suitable container.
3. Remove the lower part of the water trap from the
prefilter.
4. Clean the lower part of the water trap with a soft
rag. Check that the drain hole in the lower part is not
blocked.
5. Install a new seal on the lower part and lubricate the
seal with diesel fuel. Reinstall the lower part of the filter.
PAGE 52 — DCA600SSV4F3 60 HZ GENERATOR • OPERATION MANUAL — REV. #2 (11/15/22)
WATER TRAP
SENSOR CABLE
6. Lubricate the seal with diesel fuel. Screw the filter
onto the filter bracket by hand until the rubber seal
just touches the mating surface. Then tighten another
1/2 turn. DO NOT overtighten.
7. Connect the cable to the water trap sensor.
8. If necessary, vent the fuel system. Refer to the
Bleeding the Fuel System section.
Bleeding The Fuel System
1. Check that there is sufficient fuel in the tank, and that
any fuel taps are open.
2. Release the hand pump (Figure 84) on the fuel bracket
by pushing down and twisting the plastic handle.
HAND PUMP
Figure 84. Bleeding The Fuel System
3. Vent the fuel system by pumping with the hand pump.
Air is vented to the tank via the fuel return pipe. No
breathing nipples need to be opened.
4. Lock the hand pump by pushing down and twisting the
plastic handle.
5. Start the engine and allow it to idle fast for about
10 minutes.
6. Perform a leakage and function check.
MAINTENANCE