Komatsu PW180-7E0 Operation & Maintenance Manual page 198

Wheeled excavator
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3.23 Operation
REMARK
If drain valve (3) is stiff, coat O-ring (4) of drain valve (3) with
grease.
6. Close valve (5) at the bottom of the fuel tank to shut off the
fuel supply.
7. Set a fuel container under drain hose.
8. Loosen drain valve (3), then drain all the sediment together
with the fuel from drain hose.
9. Check that nothing comes out from drain hose (4), then
remove drain valve (3).
10. Coat O-ring portion (4) with suitable amount of grease.
When doing this, be careful not to let the grease get on the
drain valve water drain port (a) or the drain valve thread.
11. Screw in drain valve (3) by hand until it contacts the bottom
12. Remove the fuel container.
13. Open valve (5) at the bottom of the fuel tank
If transparent cap (2) is dirty and the contents cannot be
easily seen, clean transparent cap (2) when replacing the fil-
ter.
When washing, if drain valve (3) is removed, coat the O-ring
with grease, then tighten by hand until it contacts bottom
3-104
a
4
3
1
PW180-7E0 – VEAM400102
Operation
GK018271

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