4.8 Fuel treatment system – Putting into operation
Overview of fuel treatment
system
1 Pressure-free overflow
2 Bypass 1
3 Bypass 2
4 Safety valve, 3 bar
5 Ball valve, inlet
6 Pressure gage
7 Ventilation, sample extraction
8 Differential pressure gage
9 Ball valve, outlet
10 Check valve 700 mbar
11 Check valve 5 mbar
12 Return to overflow container
13 Engine
14 Overflow container
15 Water separator filter
16 Ball valve, drain
17 Automatic water drain
18 Water level electrode
19 Ball valve, sample extraction, inlet
20 Switchgear cabinet
21 Pump
22 Coarse filter
23 Fuel supply from tank
24 Tank
Switching on fuel treatment system
1.
Switch on fuel treatment system (→ Page 94).
2.
Check differential pressure at differential pressure gage (8). Differential pressure in a new system:
0.1 bar to 0.3 bar.
Result:
If no differential pressure is measured, the coalescer filter element is probably being bypassed.
1. Remove coalescer filter element (→ Page 214).
2. Check sealing surfaces on coalescer filter element and in the pressure tank.
Initial operation: HAT
1.
Replace fuel filter on engine (→ Page 154).
Note:
Determine the suction pressure upstream of the engine-mounted fuel delivery pump.
2.
Install pressure gage in fuel supply line from Yard fuel system to engine.
3.
Switch on fuel treatment system and operate it for some minutes (→ Page 94).
Result:
The fuel is drawn from tank (24), cleaned by the water separator filter (15) and then routed via overflow
tank (14) back to tank (24). Water that collects in the tank is separated.
4.
Start engine (→ Page 88).
5.
Run engine at idling speed.
6.
Check suction pressure (see technical data of the engine) at the engine-mounted fuel delivery pump.
Note:
If the suction pressure is within the permissible limits and engine operation is satisfactory.
7.
Increase engine speed to 1000 rpm and monitor suction pressure.
8.
Check suction pressure at the engine-mounted fuel delivery pump.
Result:
If the values are within the limits specified by the manufacturer, the system is ready to start filter re-
placement simulation with the engine running as part of the Harbor Acceptance Tests.
92 | Operation | MS150066/02E 2013-02
TIM-ID: 0000015773 - 005
