RELAY BOARD FUNCTIONS
The following describes the components and functions
of each relay board.
Relay Board 1 (RB1)
1 - Flasher Power Light (Green): This light will be
“ON” when the turn signals or hazard lights are
activated.
> K1 light will be “ON” during right turn signal op-
eration
> K2 light will be “ON” during left turn signal opera-
tion
> K3 light will be on when clearance lights are acti-
vated.
> K4 light will be flashing when the turn signals or
hazard lights are in operation.
NOTE: If circuit breakers (CB13 & CB15) are in the off
position, no warning will be noticed until the clearance
light switch is turned “ON”.
1 - Flasher Module card.
3 - 15 amp circuit breakers (CB13, CB14, CB15)
4 - Relays
•
Right Turn/Clear Light Relay (K1)
•
Left Turn/Clear Light Relay (K2)
•
Clearance Lights Relay (K3)
•
Flasher Relay (K4)
Relay Board 2 (RB2)
1 - Data Storage Module card.
1 - Payload Stored Light (Green): This light is “ON”
for one second when the payload meter actually
stores the load data into memory.
1 - 5 amp circuit breaker (CB29) (To payload meter)
1 - 15 amp circuit breaker (CB28) (To payload lights
& relays)
4 - Relays
•
Light Relay 1 (Green) (K1)
•
Light Relay 2 (Amber) (K2)
•
Light Relay 3 (Red) (K3)
•
Light Control Relay (K4)
Relay Board 3 (RB3)
1 - Light Module Display card
1 - Rev Light (Green): This light is “ON” whenever the
selector switch is in the “reverse” position, and the
key switch is in the “ON” position.
4 - 15 amp circuit breakers
(CB16, CB17, CB18, CB19)
4 - Relays
•
Manual Back-up Lights Relay (K1)
•
Stop Lights Relay (K2)
•
Retard Lights Relay (K3)
•
Slippery Road Relay (K4) (Not used)
Relay Board 4 (RB4)
1- Steering Pressure Bleed Down Timer Module
card.
1 - Bleed Down Light (Green): This light is “ON” when
the bleeddown solenoid is being energized. The
bleeddown timer will energize the solenoid for 90
seconds after key switch is turned “OFF”.
2 - 5 amp circuit breakers (CB20, CB22)
1 - 15 amp circuit breaker (CB21)
4 - Relays
•
Park Brake Failure Relay (K1)
•
Engine Cranking Oil Pressure Interlock Relay
(K2)
•
Horn Relay (K3)
•
Body Up Relay (K4)
Relay Board 5 (RB5)
1 - Light Display Module card
1 - Lights Control Light (Green): This light is “ON”
when 24 volts is being supplied to the battery
terminal of the light switch.
5 - 15 amp circuit breakers
(CB23, CB24, CB25, CB26, CB27)
4 - Relays
•
Left Low Beam Relay (K1)
•
Right Low Beam Relay (K2)
•
Left High Beam Relay (K3)
•
Right High Beam Relay (K4)
D03019 04/01
24VDC System Components
D3-11
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 ...
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Page 737: ...NOTES R1 2 930E Schematics R01048 with Cummins QSK60 Series Engine ...
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