Komatsu WA480-8 Operation & Maintenance Manual page 227

OPERATION
Check that the rims (wheels) and rings are free from deformation, damage caused by corrosion and
cracks.
In particular, check the side rings, lock rings and rim flanges thoroughly.
If any problem is found, replace the part.
24. Check the rearview monitor.
Check the rearview monitor for problem. If it is failed, ask your Komatsu distributor for repair.
METHOD FOR CHECKING BEFORE STARTING
Always check the items in this section before starting the engine each day.
METHOD FOR CHECKING WATER SEPARATOR, DRAINING WATER AND SEDI-
MENT
• Immediately after the engine is stopped, all of parts are still very hot. Avoid draining water or re-
moving the transparent cup.
Wait for all of parts to cool down before starting the work.
• When the engine has run, high-pressure is generated in the engine fuel piping. When draining the
water or removing the transparent cup, wait for at least 30 seconds after stopping the engine to let
the internal pressure go down before starting the work.
• Do not bring any open flame close.
1.
Open the engine side cover on the right side of the machine.
Water separator (1) is in one piece with the fuel prefilter
and located in the lower part.
2.
Check for water and sediment.
It is possible to judge the water level and amount of sedi-
ment by looking through transparent cup (3).
NOTICE
If the water inside transparent cup (3) freezes, check
that the frozen water has melted completely, then fol-
low the procedure to drain the water.
3.
Place a container to catch the water under drain hose (4).
4.
Loosen plug (2) and drain the water.
5.
When fuel starts to drain from drain hose (4), tighten plug (2) immediately.
Tightening torque: 0.2 to 0.45 Nm {0.02 to 0.046 kgm}
MACHINE OPERATIONS AND CONTROLS
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WARNING
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