Maintenance & Adjustment
D760.H03E-001.H1907
167
Replace the filter element of the Fuel-water separator
Fuel and water separator disassembling
operation method
1. Make the engine inoperative for more than
30min, and unscrew the water drain plug
and drain water through the water drain
plug.
2. Drain the fuel and water separator clean.
Unplug the sensor connected to the
collecting cup (depending on actual model)
of sensor connected to the water collector,
and use a special tool to unscrew the
transparent water collector which may be
used again and its accessories. Clear oil
contamination or foreign matters in the
water collector, and check the water
collector for damage, if any, replace it. If the
water collector is damaged, place it properly
after cleaning.
3. Clean the base, especially the junction of base and water separator. Unscrew the
filter housing with a special tool, and clear fuel contamination at junction of base
and water separator.
4. Screw a new water separator housing to the base by hands till the seal ring
contacts the base, and then tighten the water separator for 270° (according to print
requirements for the water separator subject to the model) with a special tool.
5. Place a new seal ring into the water collector seal ring slot and lubricate the
surface of seal ring. Screw a water collector to the water separator by hands till the
seal ring contacts the water separator, and then tighten the water collector and
water separator for 180° (according to print requirements for the water separator
subject to the model) with a special tool.
6. Refit the quick-fitting sºCket of sensor connected to the water collector, unscrew
the air drain bolts on the base and press it with a hand pump till the water
separator is filled with fuel, and then drain air through the air drain bolts.
WARNING:
Fuel leakage may cause fire, so be sure to install the filter element firmly
to avoid fuel leakage.
1. Water separator assem-
bly
2. Water collector
Summary of Contents for DFH4180 Series
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