Normal Truck Shutdown Procedure - Komatsu 930E-2 Shop Manual

NORMAL TRUCK SHUTDOWN PROCEDURE

1. Reduce the engine speed to idle. Place the selec-
tor switch in NEUTRAL and apply the parking
brake. Be certain the "Parking Brake Applied"
indicator lamp in the overhead display panel is
illuminated.
2. Place the drive system in the REST mode by
turning the Rest switch on the instrument panel
ON. Be certain the REST warning lamp on the
overhead display is illuminated.
3. Shut down the engine using the keyswitch. If, for
some reason the engine does not shut down, use
the shutdown switch on the center console.
4. After approximately 90 seconds, verify the steer-
ing accumulators have bled down by attempting
to steer.
5. Verify the LINK VOLTAGE lights on the electrical
cabinet Information Display Panel (6, Figure 3-1),
the contactor box on the other end of the electrical
cabinet, and the DID panel in the cab are OFF. If
they remain on longer than 5 minutes after shut-
down, the propulsion system must be inspected
to investigate the cause.
6. To ensure the link will not be energized during test
and repair procedures, turn the GF Cutout Switch
(8, Figure 3-1) to the CUTOUT position by pulling
the switch handle out before moving the switch.
AN ADDITIONAL 10 TO 15 MINUTES IS REQUIRED
FOR THE AUXILIARY BLOWER MOTOR CIRCUITS
TO DE-ENERGIZE.
Do not attempt to perform Auxiliary Blower repairs
until it has been verified the system is de-ener-
gized by verifying the Blower Module Link LED's
(6, Figure 3-2) on top of the AXCAP are NOT illumi-
nated.
E3-2
1. Control Power Switch
2. Inverter 1 Cutout Sw.
3. Inverter 2 Cutout Sw.
4. Cabinet Interior Light
AC Drive System Electrical Checkout Procedure
(Release 17 Software)
FIGURE 3-1. INFORMATION DISPLAY PANEL
5. Status LED Panel
6. Link Voltage Lights
7. Chart Recorder Connector
8. GF Cutout Switch
Sw.
If there is any question the system has potential
hazardous voltage present, return to the operator
cab and perform the normal shutdown procedure.
Normal operation of the drive system at shutdown
should allow high voltages to be dissipated over
the time periods noted.
IN THE EVENT OF A SYSTEM FAILURE, perform-
ing the SHUTDOWN AFTER SYSTEM FAILURE
procedure will insure no hazardous voltages are
present in the drive system.
3/01 E03015