EHSM Preliminary April 2002
924G and 924Gz Wheel Loader Electrical and Hydraulic Systems 924G:
924Gz:
AAN1-UP
AAB1-UP
9SW1-UP
6YW1-UP
3PZ1-UP
3DZ1-UP
For questions or concerns about this manual, please contact: Jim A. Roal (309)578-8498
Table of Contents
Cell
Description
924G Wheel Loader
Table of Contents Cell
Description
Connector Table
504
Radio
Component Table
505
Security System
000
How to use this manual
601
Flood Lights
100
Power Distribution
602
Road Lights
200
Grounds
603
Marker Lights
301
Starting System
604
Instrument Il Illumination
302
Charging System
605
Interior Lights
303
Starting Aid
700
Engine Controls
304
Horn
701
Transmission (Autoshift) Control
305
Backup Alarm
703
Ride Control
306
Secondary Steering
704
Quick Coupler
307
Reversing Fa Fan Attachment
705
Kickouts / Implement Control
308
Air Ride / Heated Seat / Park Brake
706
TUV Speed Limiter
309
Electric Window Defroster
CON
Connector Detail Views
3 10 10
Accessory Po we we r / 12 V Con ve verter / Ci Ci ga gar Li gh ghter
LOC
Machine Location Views
401
Gauges and Displays
Wire Description Tables
403
Load Check System
Diagnostic Codes
501
Heating and Air Conditioning
Specifications
502
Wiper / Washers
Connector Table Connector Number A-C1 A-C2 A-C3 A-C4 C-C1 C-C2 C-C3 C-C6 C-C7 C-C8 C-C9 C-C10 C-C11 C-C12 C-C13 C-C14 C-C15 C-C16 C-C17 C-C19 C-C20 C-C21 C-C21A C-C22 C-C23 C-C24 C-C25 C-C26 C-C27 C-C29 C-C30 C-C31 C-C32 C-C33 C-C34 C-C35 C-C36 C-C37 C-C38 C-C46 C-C47 C-C48 C-C49 C-C50 C-C51 C-C52 C-C53 C-C54 C-C55 C-C56 C-C59 C-C60 C-C61 C-C62 C-C63 C-C64 C-C65
Detail Pinout CON-A-01 CON-A-01 CON-A-02 CON-A-02 CON-C-03 CON-C-03 CON-C-04 CON-C-04 CON-C-05 CON-C-05 CON-C-06 CON-C-06 CON-C-07 CON-C-07 CON-C-08 CON-C-08 CON-C-09 CON-C-09 CON-C-10 CON-C-10 CON-C-11 CON-C-11 CON-C-12 CON-C-12 CON-C-13 CON-C-13 CON-C-14 CON-C-14 CON-C-15 CON-C-15 CON-C-16 CON-C-16 CON-C-17 CON-C-17 CON-C-18 CON-C-18 CON-C-19 CON-C-19 CON-C-20 CON-C-20 CON-C-21 CON-C-21 CON-C-22 CON-C-22 CON-C-23 CON-C-23 CON-C-24 CON-C-24 CON-C-25 CON-C-25 CON-C-26 CON-C-26 CON-C-27 CON-C-27 CON-C-28 CON-C-28 CON-C-29
LOC Page 1 3 3,2 1
8 6 6
7 7 7
8 8
8 8 8 3,2 3,2 3,2 3 3 14,13 14,13 2 2 4 14 14
7
924G Wheel Loader Connector Number C-C66 C-C67 C-C68 C-C69 C-C70 C-C71 CA-C1 CA-C2 CA-C3 CF-C1 CF-C3 CF-C4 E-C1 E-C2 E-C3 E-C4 E-C5 E-C6 E-C7 E-C8 E-C9 E-C10 E-C11 E-C12 E-C13 E-C14 EC-C1 EF-C1 EJ-C1 EJ-C2 F-C1 F-C2 F-C3 G-C1 G-C2 G-C3 G-C4 G-C5 GA-C1 GA-C2 H-C1 H-C2 H-C3 H-C4 H-C5 H-C6 H-C7 H-C15 H-C18 H-C19 H-C20 H-C22 H-C24 H-C25 J-C10 J-C11 J-C2
Detail Pinout CON-C-29 CON-C-30 CON-C-30 CON-C-31 CON-C-31 C ON-C-32 CO CON-CA-33 CON-CA-33 CON-CA-34 CON-CF-35 CON-CF-35 CON-CF-36 CON-E-37 CON-E-37 CON-E-38 CON-E-38 CON-E-39 CON-E-39 CON-E-40 CON-E-40 CON-E-41 CON-E-41 CON-E-42 CON-E-42 CON-E-43 CON-E-43 CON-EC-44 CON-EF-45 CON-EJ-46 CON-EJ-46 CON-F-47 CON-F-47 CON-F-48 CON-G-49 CON-G-49 CON-G-50 CON-G-50 CON-G-51 CON-GA-52 CON-GA-52 CON-H-53 CON-H-53 CON-H-54 CON-H-54 CON-H-55 CON-H-55 CON-H-56 CON-H-56 CON-H-57 CON-H-57 CON-H-58 CON-H-58 CON-H-59 CON-H-59 CON-J-60 CON-J-60 CON-J-61
Machine Location
2 2 3,2 3,2 10 12,11 12,11 9 9 9 1 9 9
9 13,5 13,5 5 14,13 14 ,13,5 ,5 14,13 14,13 13,5 13 ,5 16
7 7 7 7 6 6 7 6 7 6 7 6 7 8 8 8
Connector Number JA-C1 JA-C13 JA-C14 JA-C15 JA-C16 JA-C2 JA-C8 K-C1 K-C2 KA-C1 L-C1 L-C2 L-C3 L-C4 L-C5 L-C6 L-C7 L-C8 L-C9 L-C10 L-C11 L-C12 L-C13 L-C14 L-C15 LA-C1 LA-C2 LA-C3 LA-C4 LA-C5 LA-C6 LA-C7 LA-C8 LA-C9 LA-C10 LA-C11 M-C1 M-C2 M-C3 M-C4 M-C5 M-C6 M-C7 M-C8 M-C9 M-C10 MA-C1 MA-C2 MA-C3 MA-C4 MA-C5 MA-C6 MA-C7 MA-C8 MA-C9 MA-C10 MA-C11
Detail Pinout CON-JA-62 CON-JA-62 CON-JA-63 CON-JA-63 CON-JA-64 CON-JA-64 CON-JA-65 CON-K-66 CON-K-66 CON-KA-67 CON-L-68 CON-L-68 CON-L-69 CON-L-69 CON-L-70 CON-L-70 CON-L-71 CON-L-71 CON-L-72 CON-L-72 CON-L-73 CON-L-73 CON-L-74 CON-L-74 CON-L-75 CON-LA-76 CON-LA-76 CON-LA-77 CON-LA-77 CON-LA-78 CON-LA-78 CON-LA-79 CON-LA-79 CON-LA-80 CON-LA-80 CON-LA-81 CON-M-82 CON-M-82 CON-M-83 CON-M-83 CON-M-84 CON-M-84 CON-M-85 CON-M-85 CON-M-86 CON-M-86 CON-MA-87 CON-MA-87 CON-MA-88 CON-MA-88 CON-MA-89 CON-MA-89 CON-MA-90 C ON-MA-90 CO CON-MA-91 CON-MA-91 CON-MA-92
Machine Location
14 14 16 16 15,14 15 ,14,13 ,13,5 ,5 16 14,13 14, 13 14 16,13 16 ,13 14 1
Connector Number N-C1 N-C2 N-C3 NA-C1 NA-C2 P-C1 P-C2 P-C3 P-C4 P-C5 P-C6 P-C7 P-C8 P-C9 P-C10 P-C11 P-C12 PA-C1 PA-C2 PA-C3 PC-C1 PC-C2 PE-C1 PE-C2 PE-C4 R-C1 R-C2 RF-C1 RF-C2 RF-C3 T-C1 U-C1 U-C2 V-C1 VA-C1 VA-C2 W-C1 WA-C1 WA-C2 X-C1 Y-C1 Y-C2 Y-C3 Y-C4 YC-C1 YC-C2 YC-C3 YC-C4 YJ-C1 YJ-C2 YJ-C3 YJ-C4 YK-C1 YK-C2 YK-C3 YK-C4 YL-C1
Detail Pinout CON-N-93 CON-N-93 CON-N-94 CON-NA-95 CON-NA-95 CON-P-96 CON-P-96 CON-P-97 CON-P-97 CON-P-98 CON-P-98 CON-P-99 CON-P-99 CON-P-100 CON-P-100 CON-P-101 CON-P-101 CON-PA-102 CON-PA-102 CON-PA-103 CON-PC-104 CON-PC-104 CON-PE-105 CON-PE-105 CON-PE-106 CON-R-107 CON-R-107 CON-RF-108 CON-RF-108 CON-RF-109 CON-T-110 CON-U-111 CON-U-111 CON-V-112 CON-VA-113 CON-VA-113 CON-W-114 CON-WA-115 CON-WA-115 CON-X-116 CON-Y-117 CON-Y-117 CON-Y-118 CON-Y-118 CON-YC-119 CON-YC-119 CON-YC-120 CON-YC-120 CON-YJ-121 CON-YJ-121 CON-YJ-122 CON-YJ-122 CON-YK-123 CON-YK-123 CON-YK-124 CON-YK-124 CON-YL-125
Machine Location
16,13,5 16,13 ,5 16
3 3
3
Component Table
924G Wheel Loader
Schematic Page
LOC Page
Alternator
302-1
9,10 9, 10
Arc Disengage Quick Coupler
704-1
Component
Schematic Page
LOC Page
Meter - Service
302-3
7
Motor - Blower
501-1
Component
Schematic Page
LOC Page
Switch - Kickout
604-3
3
Switch - AC Pressure
501-1
Component
Arc Engage Quick Coupler
704-1
Motor - Cold Start Advance
303-1
Arc Suppressor - Ride Control (Att
703-1
Motor - Front Wiper
502-1
Arc Suppressor - Sec. Steer (Att)
306-1
Motor - Rear Defroster
309-1
Arc Suppressor A (Att)
602-7
Motor - Rear Wiper
502-2
Arc Suppressor B (Att)
602-7
Motor - Sec Steer
306-3
Arc Suppressure
501-2
Motor - Washer (Front)
502-1
Battery (2)
301-1
Motor - Washer (Rear)
502-2
Breaker - Air Seat
308-2
Radio
Breaker - Alternator
301-1
10
Radio - Japan (Att)
Breaker - Aux
601-2
10
Relay - Alarm Disarm A
505-1
4
Switch - Engine Oil Pressure
401-2
1,2 ,2,3 ,3
Breaker - Main
301-1
10
Relay - Alarm Disarm B
505-1
4
Switch - Forward Horn
304-1
15
Cigar Lighter
310-2
5,15 5, 15
Relay - Backup Alarm
305-1
4
Switch - Front Wiper
502-1
Control - CST Autoshift
308-1
14
Relay - Main Power
501-2
4,14 4, 14
Switch - Hazard Lamp
602-6
Control - FNR
701-6
Relay - Park Brake Alarm
308-2
4
Switch - Hyd Lock Detent Override Override
705-1
Control - Secondary Steer
302-3
Relay - Park Brake LT/Seat Alarm
401-1
4
Switch - Hydraulic Sender
Converter - 12v to 24v DC
310-1
Relay - Ride Control/load Check
403-1
Switch - Key Start
301-1
7,8
Relay - Sec Steer
306-1
Switch - Lift Position
705-1
5,13, 5, 13,14, 14,15 15,16 ,16
Relay - Start
301-1
10
Switch - Parking Brake
308-1
Sender - Fuel Level
401-5
1
Switch - Quick Coupler
704-1
Sensor - Engine Speed
701-3
10,12 10, 12
Switch - Rear Wiper
502-2 703-1
Coolant Temperature
401-6,8 401-6 ,8
CST Shifter
301-1
Diode Block B
701-5
Flasher
14
6,15 6, 15
602-2,6 602-2 ,6
FNR - Relay
701-6
FNR LED Panel
701-8
8
Fuel Level Gauge
401-5
6,7 ,7,8 ,8
Fuses
100-1
Gauge - Coolant Temp
401-6,8 401-6 ,8
6,7 ,7,8 ,8
Gauge - Hydraulic Temp
401-6,8 401-6 ,8
6,8
Gauge - Speedometer
701-6
6,7, ,7,8 8
Gauge - Torque Conv Temp
701-9
7,8
Ground - Cab Boss
200-1
2,3 ,3,14 ,14
Ground - Shell Stud
200-12
Switch - Axle Oil Press (Att)
701-9
Switch - Beacon
603-1
6,15 6, 15
Switch - Blower
501-1
4
Switch - Bucket Fork Select
604-4
3
Switch - Coolant Temp Sender
401-6
16
Switch - Defrost
309-1
16
Switch - Dimmer
601-1
8
504-1
Switch - Disconnect
301-1
1
504-2
Switch - Downshift
701-7
6 16
401-6,8 401-6 ,8
Sensor - Transmission Speed
701-3
Switch - Ride Control
Socket - Aux 12v
504-1
Switch - Ride Control - Tilt
703-1
Solenoid - A/C Compressor (Att)
501-1
Switch - Secondary Steer
306-1
Solenoid - Fuel Shutdown
501-2
Switch - Service Brake
602-5
1
6
4
6,7, ,7,15 15
Solenoid - Ride Control Valve (Att)
703-2
Switch - Start Aid
303-1
6,15 6, 15
Solenoid - Sol 1/Fwd High
701-5
2
Switch - Steering Pressure
306-2
2,3, ,3,11 11
Solenoid - Sol 2/Rev
701-5
2
Switch - T/C Oil Temp Sender
701-9
11
Solenoid - Sol 3/Fwd Low
701-5
2
Switch - Thermastat
501-1
Solenoid - Sol 4/Spd 1
701-4
2
Switch - Turn Hazard
602-2
Solenoid - Sol 5/Spd 2
701-4
2
Switch - Turn Hazard Cosa (Att)
602-6
7,8
Heater - Cold Start
303-1
Solenoid - Sol 6/Spd 3
701-4
Switch - Wiper (Att)
502-1
Heater - Seat (Att)
308-1
Speedometer
701-6
Switch - XMSN Auto Manuel
604-4
4
Lamp - High Beam
602-4
Starter
301-1
Switch - XMSN Neutralizer
701-2
7,15 7, 15
Lamp - Left Turn
602-2
Suppressor
501-2
Torque Converter Temperature
701-9
Lamp - Right Turn
602-2
Suppressor
505-1
TUV Speed Limit
706-1
10
CELL 000-1
HOW TO USE THIS MANUAL
How to use this manual Symbols
924G
ELECTRICAL HYDRAULIC SUBSTYSTEM MANUAL
CATERPILLAR INC.
CELL 000-2
HOW TO USE THIS MANUAL
1
Internal ground Ground connection
Blade, spade, ring, or screw terminal Circuit connected
924G
ELECTRICAL HYDRAULIC SUBSTYSTEM MANUAL
CATERPILLAR INC.
CELL 000-3
HOW TO USE THIS MANUAL
1
924G
ELECTRICAL HYDRAULIC SUBSTYSTEM MANUAL
CATERPILLAR INC.
CELL 000-4
HOW TO USE THIS MANUAL
Wire Color Codes (colors of the actual wire) BK - Black BU - Blue BR - Br own GN - Gr een
GY - Gray OR - Orange PK - Pink PU - Pur ple
RD - Red WH - White YL - Yellow
Schematic Schematic Color Codes (colors used on the schematic) schematic) Colo r Identification
Wires with battery voltage even when key is switched OFF Wires with battery voltage only when key is switched ON Starting circuit Gauge circuit Panel lamp circuit Wiper/washer circuit Heating, ventilating, and air conditioning circuit Ground circuit Engine control circuit Turn signal circuit Start aid circuit Transmission control circuit
924G
ELECTR ELECTRICA ICAL L HYDRAU HYDRAULI LIC C SUBSTY SUBSTYSTEM STEM MANUA MANUAL L
CATERP CATERPILL ILLAR AR INC.
