Hazard Warning Lights (9); Lamp Test Switch / Centry™ Diagnostic Test Switch (10) - Komatsu 730E Operation & Maintenance Manual

OM3035.3 02/03 Operation - Section 3
Instrument Panel & Indicator Lights Page 3-37
TROLLEY INDICATOR LIGHTS ( Figure 3-7, Columns 7 & 8)
The indicator lights shown in Figure 3-7, Columns 7 & 8, are used ONLY when the truck is equipped with the
TROLLEY OPTION.
If truck is equipped with Trolley, refer to TROLLEY OPERATION Section for a description of these indicator lights.
(9) HAZARD WARNING LIGHTS
The hazard warning light switch flashes all the turn signal lights. Pressing the bottom side of
the rocker switch (toward the triangle) activates these lights. Pressing the top side of the
rocker switch (toward the "OFF" symbol) turns these lights off.
(10) LAMP TEST SWITCH / Centry™ Diagnostic Test Switch
This switch may be used for Lamp Test, or for Centry™ diagnostic tests of a Komatsu
engine equipped with Centry™ Fuel Control.
The lamp test switch is provided to allow the operator to test the indicator lamps prior to
starting the engine. To test the lamps, and the warning horn, turn the key switch (1, Figure 3-
6) to the "Run" position and press the bottom side of the rocker switch for the "Check" posi-
tion. All lamps should illuminate, except those which are for optional equipment that is not
installed. The warning horn should also sound. Any lamp bulbs which do not illuminate
should 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™ Diagnostics" at
the end of this section.