3-42
This switch is used to select the cleaning function of the SCR.
Inhibit position (
Η
)
The inhibit position disallows any automatic or manual SCR
cleaning.
This may be used by operator to prevent SCR cleaning when the
truck is operating in a hazardous environment is concerned about
high temperature.
It is strongly recommended that the this position is only activated
when high temperatures may cause a hazardous condition.
OFF position
This position will initate a automatic SCR cleaning when needed.
Manual position (
Θ
)
This position will only initate a manual SCR cleaning and the SCR
cleaning lamp is illuminated.
HEST lamp will be illuminated during the entire SCR cleaning.
Refer to the page 3-11 for details.
This switch return to the OFF position when released the
manual position (
Θ
).
SCR : Selective Catalytic Reduction
(1)
(2)
(3)
(4)
SCR CLEANING SWITCH
1
2
OFF
50D9OM21A
18)
刮
刯
侍
侍
侍
刮
刯
到
REAR WIPER/WASHER SWITCH
This switch is used to operate the wiper and washer on the rear of
the cab.
The washer liquid is sprayed and the wiper is operated only while
pressing this switch.
(1)
(2)
50D9OM20H
19)
This switch offers two selectable operating mode.
The operator can adjust the truck's performance with this selection
switch.
Function
STD MODE : This mode provides maximum fuel efficiency for
general loading.
PWR MODE : This mode provides maximum power output for
heavy loading or hill climb.
(1)
(2)
Η
Θ
ENGINE MODE SWITCH
20)
110D9CD60