5 Minute Idle Timer
The 5 minute idle timer (6) circuit is activated when the
operator presses the 5 minute idle timer engine shut-
down 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 energize 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 “5 minute idle timer” indicator lamp circuit
(23LI) on the overhead display is grounded, 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 position).
2. Turn the key switch OFF and verify the following:
Circuit 712 (to ground) remains 24 volts for ap-
proximately 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 circuit
712, turn the key switch OFF. Push the engine
shutdown switch off.
Verify voltage at circuit 712 drops to 0 when the
shutdown switch is pushed to OFF.
INCLINOMETER
The inclinometer is used by the on-board load weigh-
ing system to determine whether the truck is on a level
surface or tilted fore or aft. The information provided
by the inclinometer is sent to the weighing system for
use in calculating the payload. Refer to Section M for
detailed information on the inclinometer and on board
load weighing system.
BRAKE WARNING BUZZER (BWB)
The brake warning buzzer (11) provides an audible
alarm for the operator if a malfunction occurs in the
hydraulic service brake system. Refer to Section J for
additional operational details.
ALARM INDICATING DEVICE (AID) SYSTEM
The Alarm Indicating Device (16, Figure 3-1) used on
Haulpak trucks is a device which is connected in the
electrical accessories circuits to provide the operator
with a warning indication of a malfunction. This system
consists of up to eight printed circuit cards, located
under the passenger seat in the operators cab. The
actual quantity of cards will depend on options installed
on the truck.
The AID system enables the indicating lights to be
flashing or constant. The AID also has the capability of
operating an audible alarm along with the light. The
eight printed circuit cards are (refer to Figure 3-2):
•
Diode Matrix (With Sound) Card (Slot 1)
•
Diode Matrix (Without Sound) Card (Slot 2)
•
Hot Switch Inverter Card (Slot 3)
•
Hot Switch Inverter Card (Slot 4) (Not Used)
•
Temperature Card (Slot 5) (Not Used)
•
Oil Level Card (Slot 6)
•
Temperature and Latch Card (Slot 7)
•
Coolant Level and Flasher Card (Slot 8)
NOTE: Each card is identified with a number which
corresponds with a mating number on the housing. If
cards are removed, make sure card numbers corre-
spond with housing numbers during installation (See
Figure 3-2).
The following briefly describes each card and its func-
tion. Refer to Section “R” for circuit components de-
scribed below.
Coolant Level/Flasher
The Coolant Level and Flasher Card contains two sepa-
rate circuits. The flasher circuit at the top of the card
has Q12 transistor biased to be saturated when no
malfunction is present, resulting in there being 24 volt
positive output on pin “H” of the card and on wire 12F.
When a indicating circuit is activated, the ground side
of the circuit connected to card pin “K” is grounded.
Q12 will turn off initially and then after a delay, adjusted
by R20, will turn on and off to give the intermittent 24
volt output.
D03019 04/01
24VDC System Components
D3-3
Summary of Contents for 930E-2
Page 1: ......
Page 2: ......
Page 4: ...NOTES ...
Page 8: ...KOMATSU MODEL 930E Dump Truck A 4 Introduction A00017 03 01 ...
Page 10: ...NOTES A1 2 Index A01001 2 94 ...
Page 12: ...930E MAJOR COMPONENTS A2 2 Major Component Description A02055 ...
Page 35: ...START HERE Walk Around Inspection A03017 General Safety and Operating Instructions A3 21 ...
Page 46: ...NOTES A3 32 General Safety and Operating Instructions A03017 ...
Page 78: ...NOTES B1 2 Index B01016 ...
Page 88: ...NOTES B3 6 Dump Body B03013 03 01 ...
Page 92: ...NOTES B4 4 Fuel Tank B04015 ...
Page 94: ...NOTES C1 2 Index C01021 03 01 ...
Page 118: ...NOTES C5 6 Air Filtration System C05013 5 98 ...
Page 126: ...NOTES D2 6 24VDC Electric Supply System D02018 ...
Page 142: ...NOTES D3 16 24VDC System Components D03019 04 01 ...
Page 146: ...FIGURE 2 1 PROPULSION SYSTEM DIAGRAM E2 2 Electrical Propulsion System Components E02014 3 01 ...
Page 196: ...NOTES E2 52 Electrical Propulsion System Components E02014 3 01 ...
Page 240: ...NOTES E3 44 AC Drive System Electrical Checkout Procedure 3 01 E03015 Release 17 Software ...
Page 242: ...NOTES G1 2 Index G01017 ...
Page 250: ...NOTES G2 8 Tires and Rims G02015 ...
Page 274: ...NOTES H1 2 Index H01013 04 01 ...
Page 282: ...NOTES H2 8 Front Suspensions H02013 2 01 ...
Page 288: ...NOTES H3 6 Rear Suspensions H03013 ...
Page 334: ...NOTES J3 32 Brake Circuit Component Service J03019 1 99 ...
Page 378: ...NOTES L2 8 Hydraulic System L02028 ...
Page 401: ...FIGURE 4 5 FLOW AMPLIFIER VALVE L04031 Steering Circuit L4 7 ...
Page 403: ...FIGURE 4 6 FLOW AMPLIFIER NO STEER L04031 Steering Circuit L4 9 ...
Page 405: ...FIGURE 4 7 FLOW AMPLIFIER LEFT STEER L04031 Steering Circuit L4 11 ...
Page 407: ...FIGURE 4 8 FLOW AMPLIFIER RIGHT STEER L04031 Steering Circuit L4 13 ...
Page 409: ...FIGURE 4 9 FLOW AMPLIFIER NO STEER EXTERNAL SHOCK LOAD L04031 Steering Circuit L4 15 ...
Page 414: ...NOTES L4 20 Steering Circuit L04031 ...
Page 422: ...NOTES L5 8 Steering Control Unit L05021 ...
Page 429: ...L06021 Steering Circuit Component Repair L6 7 ...
Page 450: ...NOTES L6 28 Steering Circuit Component Repair L06021 ...
Page 466: ...NOTES L7 16 Hoist Circuit L07023 ...
Page 492: ...NOTES L9 6 Hydraulic System Filters L09008 ...
Page 504: ...NOTES L10 12 Hydraulic Check out Procedure L10012 ...
Page 508: ...NOTES M1 2 Index M01034 03 01 ...
Page 518: ...NOTES M2 3 10 Ansul Checkfire Electric Detection and Actuation System M02003 ...
Page 524: ...NOTES M5 4 Wiggins Quick Fill Fuel System M05002 10 96 ...
Page 532: ...NOTES M8 8 Special Tools M08012 9 99 ...
Page 560: ...NOTES M9 28 Air Conditioning System M09010 6 97 for HFC 134a Refrigerant ...
Page 618: ...M20 20 Payload Meter II M20007 10 00 ...
Page 619: ...M20007 10 00 Payload Meter II M20 21 ...
Page 627: ...M20007 10 00 Payload Meter II M20 29 ...
Page 634: ...NOTES N1 2 Index N01020 03 01 ...
Page 654: ...NOTES N3 6 Cab Components N03011 7 98 ...
Page 660: ...NOTES N4 6 Operator Comfort N04020 ...
Page 686: ...NOTES N5 26 Operator Cab Controls N05044 ...
Page 688: ...NOTES P1 2 Index P01024 ...
Page 691: ...P02034 Lubrication and Service P2 3 ...
Page 722: ......
Page 723: ......
Page 724: ......
Page 725: ......
Page 726: ......
Page 727: ......
Page 728: ......
Page 729: ......
Page 730: ......
Page 731: ......
Page 732: ......
Page 733: ......
Page 734: ......
Page 735: ......
Page 736: ......
Page 737: ...NOTES R1 2 930E Schematics R01048 with Cummins QSK60 Series Engine ...
Page 738: ......
Page 739: ......