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MACHINE OPERATIONS AND CONTROLS
METHOD FOR CHECKING DEF LEVEL, ADDING DEF
•
Do not put fluid other than DEF into DEF tank. In particular, if diesel fuel or gasoline is added into
the tank, it can cause a fire. Some fluids or agents added can create and emit a toxic gas.
•
When opening the cap of DEF tank of the machine, the ammonia vapor may escape. Keep your face
away from the filler port during opening or refilling.
•
Foreign material in DEF can shorten the service life of DEF injector and DEF pump. Before removing
the filler port cap, wipe off the dirt from around the filler port. Before inserting the filler nozzle into
the filler port, wipe off dirt from it.
•
If DEF is spilled, immediately wash and clean the area with water. If spilled DEF is left unattended
and the area is not washed and cleaned, it can cause corrosion to the contaminated area and emit
toxic gas.
NOTICE
•
Do not add DEF more than F line of sight gauge (3). DEF may leak through the breather. When the
ambient temperature is low, if DEF freezes, it expands and may leak or break devices. When DEF
may freeze, do not add it more than line (7) of sight gauge (3).
Be careful of the DEF line to be added when performing operations on a slope or traveling on a
rough ground. When the remaining DEF level is low,a warning may be displayed or the engine out-
put power limitation may be activated if DEF pump sucks air or if DEF level suddenly drops.
•
If DEF is stored in another container, foreign material may mix in it and toxic gas or corrosive sub-
stance may be produced by chemical reactions. When adding DEF, do not transfer it to another con-
tainer.
•
If you use a funnel to add DEF, the strainer which is set at the filler port may be broken. Do not use a
funnel.
•
When using a portable refill container, use it up each time. If any of it is left, completely seal it up.
Remove foreign material, if there is any.
•
Do not wash the supply nozzle in city water. Minerals may clog the devices.
•
Do not dilute DEF with water.
•
If you add fluid other than DEF (diesel fuel, low concentration DEF, etc.) by mistake, the caution
lamp lights up and the alarm buzzer sounds to warn the abnormality. In this case, ask your Komatsu
distributor for draining of the wrong fluid and inspection. DEF injector and/or DEF pump may need
to be replaced.
1.
Turn the starting switch to ON position (B).
3-162
k
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WARNING
OPERATION
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