Water Separator - Inspect; Gauze Filter - Clean; Fig. 8-7 Water Separator - Drain Water; Fig. 8-8 Water Separator Element - Replace - Mitsubishi S6B Operation & Maintenance Manual

Water separator - Inspect and Replace
Water separator - Drain water
1. Prepare a plate, and place it under the drain cock
of water separator.
2. Open the drain cock, and drain water in the water
separator.
3. Close the all drain cocks after draining.
Water separator element - Replace
Open the inlet valve slowly to prevent overflowing fuel. Wrap a cloth around the water separator before the fuel
may spill.
1. Close the inlet cock and outlet cock.
2. Turn the T-handle, and remove the water separator
cover.
3. Open the drain cock, and drain fuel in the water
separator.
4. Close the all drain cocks after draining.
5. Replace the element with a new one.
6. Fill the water separator with fuel.
7. Attach the water separator cover, and tighten the T-
handle.
8. Open the inlet cock and outlet cock.

Gauze filter - Clean

If the gauze filter is clogged, the fuel supply becomes
insufficient, resulting in decrease in power output or
engine stall.
1. Remove the eye bolt at the inlet port of fuel feed
pump.
2. Using a screw driver, remove the gauze filter that is
fitted inside the eye bolt.
3. Soak the gauze filter in the fuel, and clean it with a
brush.
4. After cleaning, install the gauze filter into the eye
bolt using a screw driver.
5. Install the eye bolt to the fuel feed pump.
6. Bleed the air from the fuel filter.
Note: For bleeding the fuel filter, refer to
Bleed air" (3-2).
Chapter 8 PERIODIC INSPECTION AND MAINTENANCE PROCEDURES
Outlet cock
Outlet cock

Fig. 8-8 Water separator element - Replace

"Fuel filter -

Fig. 8-7 Water separator - Drain water

Inlet cock
Drain cock
Gauze filter
Fuel feed pump

Fig. 8-9 Gauze filter - Clean

Inlet cock
Drain cock
Element
Eye bolt
8-7