Operation - Section 32 OM3223
Page 32-24 Operator Cab and Controls
Hazard Warning Light
Switch
Hazard warning light switch
(9, Figure 32-12) flashes all
the turn signal lights. Pressing
the bottom side of the rocker
switch (toward the triangle)
activates these lights. Press-
ing the top side of the rocker
switch (toward the off symbol) turns these lights off.
Lamp Test Switch / Centry™
Diagnostic Test Switch
Lamp test switch (10, Figure
32-12) may be used for lamp
test, or for Centry™ diagnostic
tests if equipped with Cen-
try™ Fuel Control.
The lamp test switch is pro-
vided to allow the operator to
test the indicator lamps prior
to starting the engine. To test the lamps, and the
warning horn, turn key switch (1, Figure 32-11) to the
RUN position and press the bottom side of the rocker
switch for the CHECK position. All lamps will illumi-
nate, except those which are for optional equipment
that is not installed. The warning horn will also sound.
Any lamp bulbs which do not illuminate are to be
replaced before operating the truck. Releasing the
spring-loaded switch will allow the switch to return to
the OFF position.
For diagnostic tests of a Komatsu engine equipped
with Centry™ Fuel Control, refer to Centry™ Diag-
nostics at the end of this section.
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