Komatsu 830E Shop Manual page 143

5 Minute Idle Timer
The 5 minute idle timer (6) circuit is activated when
the operator presses the 5 minute idle timer engine
shutdown switch mounted on the instrument panel.
(This is a momentary switch that also latches the 5
minute idle timer in the energized position.) When the
timer is energized, internal contacts close and ener-
gize the relay and contactor described below.
5 Minute Idle Relay
The relay (12) contacts close when the idle delay
timer is energized. When the contacts are closed, the
AID system indicator light circuit (12M) is grounded
through the "5 minute idle timer" indicator lamp on
the overhead display, turning the lamp on.
5 Minute Idle Contactor
The contactor (7) energizes the idle timer and main-
tains current flow to the engine "run" circuit if the
operator turns the key switch off.
5 MINUTE IDLE CIRCUIT TEST
Check 5 minute idle timer circuits as follows:
1. With the key switch ON, press the Engine Shut-
down switch firmly to the momentary position
and release (switch will return to the ON posi-
tion).
2. Turn the key switch OFF and verify the follow-
ing:
Circuit 712 (to ground) remains 24 volts for
approximately 5 minutes. After 5 minutes, the
voltage drops to 0.
The 5 minute idle indicator lamp on the
overhead display is ON when circuit 712
reads 24 volts.
3. Repeat step 1. While monitoring voltage at cir-
cuit 712, turn the key switch OFF. Turn the
engine shutdown switch off.
Verify voltage at circuit 712 drops to 0 when
the shutdown switch is turned to OFF.
D03026
DATA STORE SWITCH
The Data Store switch (18) allows a technician to
store propulsion system event data during truck
operation while troubleshooting the system. Refer to
Section "E" for additional information.
KOMATSU ENGINE QUANTUM CONNECTOR
This connector (19) is for use by qualified personnel
to access engine diagnostic information for the
QUANTUM system. Refer to engine manufacturer's
service publications for troubleshooting information.
KOMATSU ENGINE CENSE CONNECTOR
This 3-pin connector (20) is for use by qualified per-
sonnel to access engine diagnostic information for
the CENSE system. Refer to engine manufacturer's
service publications for troubleshooting information.
STATEX III PROPULSION SYSTEM DIAGNOSTIC
CONNECTOR
This 9-pin connector (21) is for use by qualified per-
sonnel to access G.E. STATEX III electric propulsion
system diagnostic information and data. Refer to
Section "E" for additional information.
SPARE CONNECTOR LOCATION
This connector (22) location may be used for optional
equipment installed on the truck such as a Modular
Mining Dispatch system.
24VDC Electrical System Components D3-3