Komatsu PW160-7H Operation & Maintenance Manual page 151

OPERATION
CHECK FOR WATER AND SEDIMENT IN WATER SEPARA-
TOR, DRAIN WATER
Do not over tighten the valve. Over tightening can damage
the threads.
1. Open the door at the rear right of the machine.
2. Inspect the water separator (A), and check if the ring inside
has risen to the marked line.
3. If the ring has risen to the marked line, carry out the proce-
dure from Step 4.
4. Set a container under the water separator to catch the
drained FUEL.
5. Secure fuel line to prevent leakage.
6. Remove air bleed plug (5) at the top of the water separator.
7. Loosen drain valve (1) at the bottom of the water separator,
and drain the water and sediment into the container.
8. Loosen ring nut (2), then remove filter case (3).
9. Remove element (4) from the separator base.
10. Wash element (4) in clean diesel oil.
11. Check element (4), and replace it if it is damaged.
12. When installing element (4), perform Steps 9 and 8 in the
opposite order.
Tightening torque of ring nut (2): 40
13. Fill filter case (3) with fuel. When the fuel comes out from air
bleed plug (5), tighten air bleed plug (5).
PW160-7H VEAM390100
±
3 N•m
±
{4.1 0.3 kgf•m}
A
OPERATION
151