Komatsu Galeo HD405-7R, Operation & Maintenance Manual

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OPERATION
OPERATION
CHECK WATER SEPARATOR, DRAIN WATER
WARNING
Do not bring any fire or flame close.
The water separator serves to separate moisture mixed in the fuel.
NOTICE
If float (1) goes above level line (2), there is danger that the separated water
may be sucked into the engine.
Always drain the water before float (1) reaches level line (2).
1. Open the inspection cover on the left side of the machine.
2. Check the position of float (1).
If float (1) is about to reach level line (2), drain the water as
follows.
Prepare a container to catch the water.
3. Put a container under the water separator to catch the drained
water.
4. Loosen plug (3) and drain the water.
REMARK
If the level of the fuel inside the fuel tank is low, it is impossible
to drain the water when plug (3) is loosened. In this case, first
add fuel, then drain the water.
If it is impossible to add fuel, the water can be drained by
loosening plug (4). (Width across flats: 14 mm (0.6 in))
5. When fuel starts to come out, tighten plug (3) immediately.
Tightening torque: 1.5 - 2.5 Nm (0.15 - 0.25 kgm, 1.1 - 1.8 lbft)
6. If the inside of filter case (5) is dirty with the sediment, wash it.
For details, see "CHECK WATER SEPARATOR, WASH
INSIDE OF FILTER CASE (PAGE 4-35)".
7. Tighten air intake plug (4).
Tightening torque: 8.0 - 12.0 Nm (0.8 - 1.2 kgm, 5.8 - 8.7 lbft)
8. After completing the water drain operation, bleed the air. Use
the same procedure as when replacing the fuel filter cartridge.
For details of the method for bleeding the air, see "BLEED AIR
FROM FUEL CIRCUIT (PAGE 4-37)".
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