315B EXCAVATOR FOREST MACHINE AKASHI MAIN ELECTRICAL SCHEMATIC USED IN SERVICE MANUAL RENR1120

Component Location
Component
Schematic
Location
Machine
Location
Component
Schematic
Location
Machine
Location
Actuator - Governor E-9 27D
Relay - Starter
H-7 15D
Alarm - Travel D-9 3
Relay - Timer
J-7 8D
Alternator C-8 4
Resistor - Backup
H-9 10D
Antenna A-6 8A
Sender - Engine Coolant Temp
C-8 5
Battery F-9 6
Sender - Hydraulic Oil Temp
B-7 3E
Block - Terminal G-7 13D
Sensor - AiH Coolant Temp
C-8 1
Breaker 1 G-9 11D
Senser - Ambienf Temp
H-5 34
Breaker 2 H-9 17D
Sensor - Fuel Level
A-2 9
Breaker 3 H-9 16D
Sensor - Pump Discharge Press
A-7 16
Breaker - Bat 1 H-9 19D
Sensor - Speed
B-8 17
Breaker - Bat 2 H-9 28D
Sensor - Sun Load
F-2 5A
Controller C-4 7
Solenoid - Air Cond Comp Clutch
B-8 19
Converter B-6 8
Solenoid - Engine Shutdown
A-9 20
Dial - Engine Speed E-3 3B
Solenoid - Grapple
C-3 32
Fuse - Block J-4, 5, 6 4C
Solenoid - Hydraulic Lock
H-2 1G
Glow Plug B-9 2
Solenoid - Level Finish
A-7 1F
Heater Switch Panel H-6 1C
Solenoid - Rotate
A-7 31
Horn C-2 10
Solenoid - Swing Brake
A-2 21
Indicator - Hydraulic Oil Filter B-7 2E
Solenoid - Travel Speed
A-7 2F
Lamp-Boom C-1 11
Solenoid - Trenching
A-7 3F
Lamp-Cab H-1,G-1 12
Speaker
B-6 7A
Lamp - Chassis B-2 13
Switch - Air Cleaner
E-9 22
Lamp - Dome B-5 9A
Switch - Backup
D-4 78
Lighter - Cigar E-2 2A
Switch - Boom Raise Press
C-7 23
Meter - Service E-2 3A
Switch - Coolant Level
E-9 24
Monitor F-2 1A
Switch - Disconnect
G-9 12D
Motor - Starter B-8 14
Switch - Engine Oil Level
A-9 25
Motor - Tilt F-9 30
Switch - Engine Oil Press
B-8 26
Motor - Upper Wiper B-5 4A
Switch - Grapple (close)
F-3 5B
Motor - Washer
D-6 15
Switch - Grapple (open)
H-1 7C
Radio
J-3 2C
Switch - Horn
H-1 3C
Radio - 12VDC
C-6 33
Switch - Hydraulic Oil Level
B-7 1E
Relay - Boom Lamp
J-9 2D
Switch - Implement Swing Press
C-7 27
Relay - Chassis/Cab Lamp 1
J-9 3D
Switch - Neutral Start
H-2 5C
Relay - Chassis/Cab Lamp 2
J-9 21D
Switch - One Touch Low Idle
F-3 4B
Relay - Chassis/Cab Lamp 3
J-9 22D
Switch - Panel
F-3 1B
Relay - Fan
J-7 20D
Switch - Rotate (ccw)
F-3 6B
Relay - Grapple (close)
E-9 25D
Switch - Rotate (cw)
H-1 6C
Relay - Grapple (open)
D-9 26D
Switch - Speed Change
D-5 8B
Relay - Heater
H-7 9D
Switch - Starter
E-3 28
Relay - Horn
J-9 1D
Switch - Travel Press
B-7 29
Relay - Hydraulic Lock Solenoid
J-9 4D
Timer - Engine Shutdown
H-7 18D
Relay - Main
H-7 6D
Unit - Heater
H-6 18
Relay - Neutral Start
J-7 7D
Unit - Heater Control
J-8 5D
Relay - Rotate (ccw)
E-9 23D
Valve - Proportional Reducing
A-7 4F
Relay - Rotate (cw)
D-9 24D
Wiper Control
E-2 6A
Relay - Start Cont
J-7 14D
Area A = Inside of cab
Area B = Inside of R.H. console
Area C = Inside of L.H. console
Area D = Around relay panel
Area E = Around hydraulic oil tank
Area F = Around pilot manifold
Area G = Bottom platform
Harness Connector Location Chart
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
CONN98
B-153-2517
Fuel Level Sensor
A-2
CONN23
G-150-6957
Grapple Switch (close)
F-3
CONN100
C-163-6645
Diode
H-7
CONN24
G-150-6957
Rotate Switch (ccw)
F-3
CONN101
L-134-8520
Cab Lamp
G-1
CONN57
B-153-2517
Engine Oil Press Switch
B-8
CONN102
L-134-8520
Cab Lamp
G-1
CONN66
F-163-6643
Air Cleaner Switch
E-8
CONN103
A-163-6641
F-163-6643
F-6
CONN75
H-163-6642
Horn Switch
H-2
CONN 104
A-163-6641
H-163-6642
H-5
CONN77
G-150-6957
Low Idle Switch
F-3
CONN11
H-163-6642
Rotate Switch (cw)
H-2
CONN78
D-128-7336
Cigar Lighter
E-2
CONN12
H-163-6642
Grapple Switch (open)
H-2
Harness Connector Location Chart
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
CONN1
A-163-6641
Controller
A-4
CONN6
A-163-6641
E-128-7337
B-6
CONN2
A-163-6641
Controller
C-4
CONN10
E-128-7337
Radio
B-6
CONN3
A-163-6641
A-163-6641
C-5
CONN18
A-163-6641
G-150-6957
E-5
CONN9
A-163-6641
D-128-7336
C-5
CONN20
A-163-6641
G-150-6957
E-5
CONN17
A-163-6641
G-150-6957
F-5
CONN38
A-163-6641
H-163-6642
H-3
CONN19
A-163-6641
G-150-6957
E-5
CONN39
H-163-6642
Radio
J-3
CONN35
A-163-6641
H-163-6642
H-5
CONN68
C-163-6645
Heater Control Unit
J-8
CONN37
A-163-6641
H-163-6642
H-4 7 Contacts
CONN15
D-128-7336
Monitor
F-2
CONN45
A-163-6641
F-163-6643
F-6
CONN5
A-163-6641
A-163-6641
B-5
CONN47
A-163-6641
F-163-6643
E-6
CONN7
A-163-6641
E-128-7337
C-6
CONN48
A-163-6641
F-163-6643
E-6
CONN13
E-128-7337
Wiper Motor
B-5
CONN50
A-163-6641
F-163-6643
E-6
CONN31
G-150-6957
Engine Speed Dial
E-3
CONN53
F-163-6643
B-153-2517
D-7
CONN36
A-163-6641
H-163-6642
H-4
CONN55
F-163-6643
B-153-2517
D-8
CONN43
A-163-6641
Heater Unit
H-6
CONN58
B-153-2517
C-163-6645
G-7
CONN46
A-163-6641
F-163-6643
F-6
CONN60
F-163-6643
C-163-6645
G-8
CONN54
B-153-2517
F-163-6643
D-8
CONN61
F-163-6643
C-163-6645
G-8
CONN59
F-163-6643
C-163-6645
G-8
CONN65
A-163-6641
F-163-6643
D-6
CONN82
F-163-6643
Governor Actuator
E-9
CONN14
D-128-7336
Wiper Control
E-2
CONN83
C-163-6645
Start Cont Relay
J-8
CONN32
G-150-6957
Switch Panel
E-3
CONN94
F-163-6643
M-153-2455
D-8
8 Contacts
CONN4
A-163-6641
A-163-6641
B-5 5 Contacts
CONN49 C-163-6645
H-9
Harness Connector Location Chart
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
Connector
Machine
Location
Harness And/Or
Components
Schematic
Location
CONN8
A-163-6641
D-128-7336
C-5
CONN62
C-163-6645
Timer Relay
J-7
CONN21
8-153-2517
Grapple Valve
C-3
CONN64
C-163-6645
Start Relay
H-7
CONN30
A-163-6641
H-163-6642
H-4
CONN67
C-163-6645
Diode
H-7
CONN63
C-163-6645
Timer Relay
J-7
CONN69
B-153-2517
Travel Alarm
D-9
CONN70
F-163-6643
M-153-2455
D-8
CONN72
L-134-8520
Cab Lamp
G-1
CONN99
C-163-6645
Engine Shutdown Timer
H-7
CONN74
L-134-8520
Cab Lamp
H-1
CONN25
B-153-2517
Hydraulic Oil Filter Indicator
B-7
CONN76
B-153-2517
Swing Brake Solenoid
A-3
CONN52
H-163-6642
Neutral Start Switch
H-2
CONN79
B-153-2517
Boom Raise Press Switch
C-7
CONN71
F-163-6643
Coolant Level Switch
E-9
CONN80
B-153-2517
Implement Swing Press Switch
C-7
CONN85
A-163-6641
A-163-6641
C-5
CONN81
B-153-2517
Travel Press Switch
C-7
CONN90
B-153-2517
Pump Discharge Press Sensor
A-7
CONN84
B-153-2517
Speed Sensor
B-8
CONN16
D-128-7336
Sun Load Sensor
F-2
CONN86
B-153-2517
A/C Clutch Solenoid
B-8
CONN22
F-163-6643
Washer Motor
D-6
CONN87
B-153-2517
AiH Coolant Temp Sensor
C-9
CONN26
B-153-2517
Proportional Reducing Valve
A-7
CONN88
B-153-2517
J-134-3298
C-2
CONN27
B-153-2517
Chassis Lamp
B-2
CONN89
B-153-2517
Engine Oil Level Switch
A-9
CONN28
B-153-2517
Chassis Lamp
B-2
CONN91
B-153-2517
Level Finish Solenoid
A-7
CONN29
A-163-6641
F-163-6643
F-6
CONN92
B-153-2517
Travel Speed Solenoid
A-7
CONN34
A-163-6641
H-163-6642
H-5
CONN93
B-153-2517
Trenching Solenoid
A-7
CONN44
A-163-6641
Heater Unit
H-6
CONN95
B-153-2517
Rotate Valve
A-7
CONN51
A-163-6641
Hydraulic Lock Solenoid
G-2
CONN96
B-153-2517
Hydraulic Oil Level Switch
B-7
CONN56 F-163-6643
D-8
CONN97
B-153-2517
Rotate Valve
A-7
3 Contacts
2 Contacts
2 Contacts
2 Contacts
Bullet
Terminal
Bullet
Terminal
40 Contacts
12 Contacts
9 Contacts
8 Contacts
6 Contacts
4 Contacts
3
4
5
6
8
9
1
2
7
1
2
3
4
5
6
7
8
9
AREA A
1
2
3
4
5
1
3
4
5
6
3
4
5
6
8
1
2
7
3
4
5
6
1
2
7
AREA B
AREA C
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20 21
22
23
24
25
26
27
29
30
31
32
33
34
7
F
G
A
3
4
5
6
8
9
10
11
12
14
15
13
16
B
C
D
E
1
2
17
18
19
20
21
22
23
24
25
26
27
29
30
31
32
33
34
7
F
G
1
2
39
4
5
6
7
8
9
10
11
12
13
14
15
16
17
35
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
4
5
6
7
8
9
10
11
12
13
14
15
16
17
19
20
21
22
23
24
25
26
27
28
29
30
31
32
41
42
33
34
36
37
38
33
34
35
36
37
38
23
41
42
11
13
10
12
MACHINE HARNESS CONNECTOR AND COMPONENT LOCATIONS
1
2
3
4
3
4
1
2
AREA F
1
1
2
3 4
5
6
7
8
9
10
12
13
14
15
16
AREA G
1
2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
3
4
5
6
8
9
10
11
12
14
15
13
16
1
2
17
18
19
2021
22
23
24
25
26
27
28
7
3
1
2
AREA D
AREA E
Related Electrical Service Manuals
Form Number
Engine/Pump Control RENR1998
Starting And Charging RENR1044
Title
Resistor, Sender and Solenoid Specifications
Part No. Component Description Resistance (Ohms)¹
3E-1906
Solenoid - A/C Clutch
17.6 ± 0.6
3E-9205
Solenoid - Grapple
24.9
4I-5394
Sender - Hydraulic Oil Temp
6130 to 7500
102-8015
Resistor - Backup
41.0 ± 2.05
111-9916
Solenoid - Proportional Reducing Valve
11.7 ± 1.2
121-1490
Solenoid - Level Finish
Trenching
32.0 ± 3.2
121-1491
Solenoid - Hydraulic Lock
Swing Brake
Travel Speed
32.0 ± 3.2
¹ At room temperature.
Off Machine Switch Specification
Part No. Function Actuate Deactuate Contact Position
106-0179
Implement Pressure
Travel Pressure
1225.00 ± 98.00 kPa
(177.67 ± 14.21 psi)
882 kPa MIN
(127.92 psi MIN)
Normally Open
106-0180 Boom Raise Pressure
2646.00 ± 196.00 kPa
(383.77 ± 28.43 psi)
2156.00 ± 196.00 kPa
(312.70 ± 28.43 psi)
Normally Open
Wire Description
Wire
Wire
Color
Description
Wire
Number
Wire
Color
Description
Power Circuits
Accessory Circuits (Continued)
101 RD Bat(+) 592 BU DC/DC Convertor Power Output
103 RD Aux Ckt A513 RD DC/DC Convertor Memory Output
105 RD Key Sw A579 OR Wiper Motor (+)
109 RD Alt Output (+) Term. A586 OR Wiper SW To Wiper Cont
110 RD AuxCkt A588 GN Safety Sol Relay To Sol
111 RD AuxCkt C513 BU A/C Key Pad Interface
112 PU Main Power Rly Output C514 PK A/C Key Pad Interface
113 OR Opr Mon Panel B (+) Switched C515 BR A/C Key Pad Interface
114 RD Warning Horn (Forward) C516 GY A/C Key Pad Interface
115 RD AuxCkt C517 GN A/C Key Pad Interface
118 GY AuxCkt C518 WH A/C Key Pad Interface
120 YL Aux Ckt C519 OR A/C Key Pad Interface
124 RD A/C C520 PK A/C Key Pad Interface
129 BU Aux Ckt C521 PU A/C Key Pad Interface
147 PU Aux Ckt C523 BU A/C Key Pad Interface
149 PU AuxCkt C524 WH A/C Key Pad Interface
150 RD Bat(+) C525 YL A/C Key Pad Interface
151 GN Aux Ckt C526 BR A/C Key Pad Interface
154 RD Aux Ckt C536 PK Operator A/C On Lamp
168 RD Aux Ckt C537 GN A/C Photo Sensor (+) Sig
172 RD Aux Ckt C538 OR A/C Photo Sensor (-) Sig
176 YL Aux Ckt C539 YL A/C Control SW IP1
177 RD Main BrKr C540 GY A/C Control SW P2
178 GN Main Brkr C541 GN A/C Control SW P3
179 BU AuxCkt
Lighting Circuits
180 GN AuxCkt 607 PK Flood Lamp - Front
185 YL Aux Ckt 615 YL Cab Flood Lamp
189 RD AuxCkt 616 BU Boom Flood Lamp
Ground Circuits
Control Circuits
200 BK Main Chassis 763 BU Torque Converter SW
201 BK Operator Monitor Return 786 GN Eng Speed Cont - Hi Press SW
235 BK Electronic Pump Ctrl Gnd 788 YL Eng Speed (+)
A270 BK Operator Panel 791 RD Eng Speed Cont - Lo Sol
Basic Machine Circuits
A718 PU Start Aid Coolant Sensor Signal
304 WH Starter Relay No.1 Output A755 PK Throttle SW #1
306 GN Starter Relay Coil To Neut Start A756 BU Throttle SW #2
307 OR Start Key SW To Neut Start A757 GY Throttle SW #3
308 YL Main Power Relay Coil A758 BR Throttle SW #4
309 GY Alternator Regulator Term. A761 PU Electronic Pump Cont
310 PU Start Aid SW to Start Aid Sol A762 PU Electronic Pump Cant
320 RD Horn Relay Coil To SW A768 BU Pump Control Valve #1 (+)
321 BR Travel Alarm A769 GY Pump Control Valve #2 (-)
322 GY Warning Horn (Forward) A770 PK Electronic Pump Control Bypass SW To Resistor
325 PK Fuel Pump Relay Cut-Out A771 PU Float SW
327 PK Shutdown Sol F771 OR Backup SW
330 YL Neut Start Relay Coil F772 WH Backup SW
Monitoring Circuits
F773 OR Governor Accel
403 GN Alternator (R) Term. F774 WH Oovernor Decel
405 GY Opr Mon Oil Press. (Low Setting) J703 PK Alt Pulse Sig To Anti-Start Relay
412 BU Opr Mon Cool Flow J709 GN Cab/Chassis Lamp Relay
430 BU Opr Mon Air Filter 877 YL Glow Plug Magnetic SW To Glow Plug
487 OR Hyd Oil Flow SW E853 PU Grapple Tong Open Sol
491 PK Hyd Oil Temp Sensor E854 GN Grapple Tong Close Sol
492 GY Coolant Temp Sensor Signal E855 WH Grapple Rotate CW Sol
495 GN Fuel Level Signal E856 GY Grapple Rotate CCW Sal
496 WH Opr Mon Panel Hyd Oil Level E904 GN Pump Discharge Signal
C468 BU Engine Oil Level K905 RD Pump Discharge (÷) B
Accessory Circuits
K906 GN Swing Brake Sal Signal
501 GN Wiper - Front (Low) K907 BU Swing Brake Sal (+) B
506 PU Washer - Front K909 BU Backup SW (+) B
508 PU Radio Speaker - Left K911 PK E/P Controller RS485 (+)
509 WH Radio Speaker - Left (Commom) K912 GN 6/P Controller RS485 (-)
511 BR Radio Speaker - Right K997 BU (+) V Sensor
512 GN Radio Speaker - Right (Common) L908 OR Controller RS-232C Tx
513 OR A/C Compressor/Refrigerant Press SW L909 BU Controller RS-232C Rx
519 PK Thermostat To Refrigerant Press SW L968 OR Electronic Pump Control Ps Valve (-)
546 BU Aux Hyd - Rotate CW L969 WH Electronic Pump Control Ps Valve (+)
547 OR Aux Hyd - Rotate CCW L970 GY Electronic Pump Cntrl To Switch Common Return
548 GY Aux Hyd - Open L971 GN Electronic Pump Cntrl To Travel Pressure Switch
549 PK Aux Hyd - Close L972 BU Low Idle SW
579 BR A/C Blower Motor No. 1 L974 GN Electronic Pump CtrI Boom Raise Press SW
590 GY Wiper SW To Intermittent Module L975 PK Start Aid Cant Lamp 1 Output
L977 YL Trenching Sol
L978 GY Level Finish Sol
C
C
G
D
©
1998 Caterpillar
All Rights Reserved
Printed in U.S.A.
RENR3282
August 1998
315B Forest Swing Machine
Electrical System
7RZ284-UP
30
20
12
13
16
42
5
6
1
2
7
6
3
1
13
10
33
34
35
36
14
13
10
8
7
37
5
1
6
7
41
15
2
18
15
2
1
7
8
16
3
10
4
9
11
39
8
5
14
11
4
5
31
32
3
3
2
9
6
4
2
12
4
1
1
5
8
4
2
9
4
38
12
9
19
4
17
16
3
6
5
17
14
15
19
20
21
22
23
24
25
26
27
1
2
3
28
1
29
G
B
A
D
D
D
D
D
G
F
A
D
G
D
D
D
F
F
F
E
G
G
G
G
C
D
A
G
A
A
B
G
D
D
D
D
D
D
B
A
C
B
B
G
A
G
G
G
G
G
A
G
D
D
D
E
C
UU
LL
101-RD-10101-RD-10
101-RD-6
BAT. BREAKER 2
139-4724
30A
169-RD-10
MM
123-WH-14
607-PK
200-BK-18
607-PK
200-BK-18
200-BK-18
615-YL
123-WH-14
J709-GN-18 200-BK-18
607-PK
615-YL
CAB/CHASSIS
LAMP RELAY 3
111-4871
123-WH-14
CAB/CHASSIS
LAMP RELAY 1
111-4871
791-RD-18115-RD-18
200-BK-18
327-PK-14
168-RD-14
GND
SOLENOID
+ BATTERY
BK-20
GN-20
BU-14
RD-14
ENG SHUTDOWN
TIMER
138-5190
607-PK
J709-GN-18
DIODE
121-1022
309-GY-18
308-YL-18
306-GN-18
168-RD-14
327-PK-14
200-BK-18
SS
TT
RR
ZZ
YY
VV
UU
LL
TT
200-BK-18
200-BK-18
308-YL-18
DIODE
121-1022
112-PU-18
K909-BU-18
200-BK-18
101-RD-6
112-PU-6
308-YL-18
308-YL-18
112-PU-6
179-BU-10
178-GN-10
101-RD-6
308-YL-18
308-YL-18
110-RD-14
189-RD-14
111-RD-14
308-YL-18
101-RD-6
109-RD-6
579-BR-14
112-PU-18
124-RD-14
200-BK-18
200-BK-18
307-OR-18
330-YL-18
154-RD-18
BREAKER 2
139-4724
124-RD-14
579-BR-14
BREAKER 3
139-4724
177-RD-10
30A
877-YL-8
101-RD-8
109-RD-8
304-WH-8
154-RD-18
307-OR-18
200-BK-18
NEUTRAL START
RELAY
111-4871
308-YL-18
306-GN-18
A770-PK-18
154-RD-18
307-OR-18
189-RD-14
111-RD-14
L975-PK-18
151-GN-18
150-RD-18
A588-GN-18
791-RD-18
103-RD-18
320-RD-18
786-GN-18
149-PU
115-RD-14
615-YL
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
L975-PK-18
308-YL-18
200-BK-18
A718-PU-18
200-BK
INDICATOR
2
1
START RELAY
125-1302
330-YL-18
616-BU
306-GN-18
322-GY-18
30A
BREAKER 1
9S-0174
OUT 1
OUT 2
+B
IN 1
GND
IN 2
A718-PU-18
RELAY PANEL
BACKUP
RESISTOR
102-8015
200-BK-18
4
2
3
1
HYD LOCK SOL
RELAY
111-4871
615-YL
K909-BU-18
200-BK-18
A770-PK-18
149-PU
149-PU-18
200-BK-18
111-RD-14
189-RD-14
110-RD-14
200-BK-18
K909-BU-18
TIMER RELAY
111-4870
115-RD-18
200-BK-18
607-PK
615-YL
151-GN-18
150-RD-18
CAB/CHASSIS
LAMP RELAY 2
111-4871
A588-GN-18
115-RD-14
60A
786-GN-18
200-BK-18
616-BU
HORN RELAY
111-4871
BOOM LAMP
RELAY
111-4871
322-GY-18
103-RD-18
124-RD-14
112-PU-18
320-RD-18103-RD-18
A588-GN-18
K909-BU-18
K909-BU-18
30A
BAT. BREAKER 1
139-4724
579-BR-14
150-RD-18
151-GN-18
200-BK-18
616-BU
310-PU-18
149-PU
786-GN-18
A718-PU-18
320-RD-18
322-GY-18
103-RD-18
101-RD-6
3
1
2
4
BUS-BAR
149-5068
200-BK-18
791-RD-18
HEATER
CONT UNIT
134-3283
J703-PK-18
STARTER
CONT RELAY
094-2080
HEATER RELAY
9X-8124
607-PK
615-YL
L
GND
S
P
YL
BK
WH/BU
WH/YL
J703-PK-18
200-BK-18
403-GN-18
327-PK-14
168-RD-14
308-YL-18
308-YL-18
200-BK-18
308-YL-18
403-GN-18
309-GY-18
CHECK TERM.
RELAY
GND
L975-PK-18
TEMP.
115-RD-14
MAIN RELAY
3T-0376
RWH/GN
309-GY-18
L908-OR
L909-BU
235-BK
E
D
C
B
A
235-BK
L909-BU
309-GY-18
S.I.S.
CONNECTOR
L908-OR
310-PU-18
200-BK-18
309-GY-18
403-GN-18
KK
308-YL-18
110-RD-14
PP
NNXX
WW
FAN RELAY
111-4871
KK
200-BK-18
RELAY PANEL
J703-PK-18
ON (KEY SW)
KEY SW.(START)
KEY SW.(ON)
CONN 64
CONN 67
CONN 100
CONN 49
CONN 83
CONN 68
CONN 63
CONN 62
CONN 99
Y/W
Y/G
B
G
R/L
R
BR
512-GN-18
511-BR-18
508-PU-18
509-WH-18
A513-RD-18
592-BU-18
200-BK-18
172-RD-18
189-RD-14
320-RD-18
154-RD-18
151-GN-18
150-RD-18
168-RD-14
115-RD-14
149-PU
105-RD
124-RD-14
177-RD-10
118-GY
111-RD-14
103-RD-18
K905-RD
147-PU
118-GY
129-BU
200-BK-14
110-RD-14
175-RD-14
521-YL-18
579-BR-14
6
5
4
3
2
1
615-YL
169-RD-10
FUSE
5A 139-5345
10A 9W-1442
15A 9W-1441
20A 9W-1446
111-RD-14
A A
HH
168-RD-14
ENG GOV
A
H
HHH
154-RD-18
189-RD-14
10
12
11
2
3
4
5
9
8
150-RD-18
OPERATOR STATION
10A
10A
15A
20A
15A
5A
15A
10A
120-YL
DOME LAMP/HORN
10A
10A
10A
CONVERTER
189-RD-14
5A
K905-RD
151-GN-18
5A
CIGAR LIGHTER
115-RD-14
BOOM LAMP
ENG SHUT TIMER
C537-GN-18
110-RD-14
120-YL
149-PU
150-RD-18
124-RD-14
172-RD-18
103-RD-18
178-GN-10
E/P CONT
5A
A/C /HEATER
154-RD-18
151-GN-18
115-RD-14
CAB/CHASSIS LAMP
175-RD-14
BLOWER
7
6
5A
177-RD-10
124-RD-14
103-RD-18 10A
10A
10A
15A
10A
320-RD-18
200-BK-18
C538-OR-18
5A
K905-RD
ATCH A/C UNIT
130-0250
6
1
3
HEATER UNIT
139-7258
4
5
2
A A
200-BK-18
FUSE BASE
111-4812
150-RD-18
129-BU
149-PU
168-RD-14
172-RD-18
HYD LOCK SOL
147-PU
ATCH SOL
147-PU
176-YL
AUX CKT
179-BU-10
110-RD-14
TIMER RELAY
WASHER/WIPER
118-GY
180-GN
AUX CKT
150-RD-18
HYD LOCK SW
178-GN-10
179-BU-10
179-BU-10
177-RD-10
178-GN-10
H
A
320-RD-18
10A
BACKUP
185-YL-18
1
L25
L8
185-YL-18
HH
H
175-RD-14
177-RD-10
111-RD-14
OPERATOR STATION
A
200-BK-18
A588-GN-18
H
HYD LOCK SOL
121-1491
NEUTRAL START
LIMIT SW
111-4799
150-RD-18
ATCH RADIO
151-GN-18
154-RD-18
2
1
C
B
A
L25
L8
L25
1
2
169-RD-10
200-BK
169-RD-10
169-RD-10
A
H
ATCH A/C
SWITCH PANEL
139-7207
HEATER
SWITCH PANEL
139-7261
AMBIENT TEMP
SENSOR
128-2163
CAB LAMP
135-0550
L
L
E
175-RD-14
200-BK-14 B
185-YL-18
120-YL
H
548-GY-18
A588-GN-18
546-BU-18
200-BK-18
320-RD-18
H
H
ROTATE SW
(CW)
GRAPPLE SW
(OPEN)
CONTROL GP
136-1206
HORN SW
ATCH
ANTENNA CABLE
134-4430
L7
ATCH LAMP
123-WH-14
15A
200-BK-18
512-GN-18
511-BR-18
509-WH-18
508-PU-18
A513-RD-18
592-BU-18
BR
WH
GY
BU
YL
GN
200-BK-18
592-BU-18
A513-RD-18
512-GN-18
511-BR-18
509-WH-18
508-PU-18
H
A
3
4
6
H
1
2
8
7
5
6
5
4
3
2
7
1
8
L24
LH SPKR (-)
LH SPKR (+)
CONV (OUT)
CONV (MEM)
RH SPKR (-)
GND
RH SPKR (+)
ATCH
12 VDC RADIO
103-8525
A588-GN-18
200-BK-18
10A
180-GN
546-BU-18
548-GY-18
A588-GN-18
H
A
180-GN
548-GY-18
A588-GN-18
546-BU-18
A588-GN-18
200-BK-18
179-BU-10
189-RD-14
113-OR-18
L7
123-WH-14
113-OR-18
150-RD-18
172-RD-18
113-OR-18
SWITCH PANEL
546-BU-18
123-WH-14
548-GY-18
105-RD
129-BU
123-WH-14
1
6
7
8
9
5
4
3
2
11
12
10
149-PU
129-BU
178-GN-10
185-YL-18
180-GN
118-GY
147-PU
120-YL
150-RD-18
105-RD
110-RD-14
168-RD-14
K905-RD
111-RD-14
105-RD
103-RD-18
L
ATCH
ANNTENA CABLE
8R-6111
124-RD-14
175-RD-14
115-RD-14
615-YL
4
113-OR-18
3
2
1
KEY SW
CONN 44 CONN 43
CONN 104
CONN 34
CONN 35
CONN 36
CONN 37
CONN 30
CONN 39
CONN 38
CONN 52
CONN 51
CONN 75
CONN 11
CONN 12
CONN 74
CONN 101
615-YL
200-BK
200-BK
615-YL
615-YL
L3
615-YL
615-YL
2
1
1
2
2
1
200-BK
615-YL
615-YL
CAB
L
CAB LAMP
135-0550
L
CAB
E
CAB LAMP
135-0550
CAB LAMP
135-0550
L
CONN 72
CONN 102
GY
PU
BR
RED
WHITE
ORANGE
YELLOW
PINK
ABBREV COLOR
BLACK
GRAY
PURPLE
BROWN
BK
PK
YL
OR
WH
RD
GN
BU
GREEN
BLUE
D-6
G-1
F-9
G-7
G-7
G-9
F-9
F-9
CABLE AS.
G-7
WIRE AS.
G-1
C-2
C-2
H-4
E-5
B-6
B-5
G-8
A-2
DESCRIPTIONSYMBOL
CONNECTOR
ELECTRICAL CONNECTION
INTERNAL ELECTRICAL
CONNECTION TO SURFACE
OF COMPONENT
BLADE, SPADE, RING,
OR SCREW TERMINAL
CIRCUIT CONNECTED
CIRCUIT NOT CONNECTED
ATCH WIRE, CABLE,
COMPONENT
L#
CIRCUIT GROUPING
DESIGNATION
IDENT PART NO. LOC
HARNESS AS.
G-7
C-4
D-9
G-7
G-7
H-8
F-9
D-9
G-7
G-7
H-7
G-9
G-7
F-9
F-9
163-6643
153-2545
136-3996
150-6938
153-2548
134-3275
116-0080
134-3274
150-6936
134-8520
140-0920
134-3298
163-6642
150-6957
128-7337
128-7336
163-6645
153-2517
150-6937
163-6641
153-2455
150-6943
150-6942
150-6940
105-9917
153-2544
150-6944
150-6941
150-6939
153-2537
153-2549
153-2566
153-2561
F
LL
GG
VV
ZZ
CC
BB
AA
XX
L
K
J
H
G
E
D
C
B
WW
A
M
PP
RR
TT
FF
MM
NN
SS
UU
KK
YY
EE
DD
TO MACHINE STRUCTURE
NOTE B : USE WITH A/C UNIT.
THIS SCHEMATIC IS FOR THE 315B FORESTRY.
150-6946 HE 01
COMPONENTS ARE SHOWN INSTALLED ON AFULLY
OPERABLE MACHINE WITH THE KEY SW AND ENGINE OFF.
UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.
NOTE C : USE WITH COLD WEATHER
E72989
L6
200-BK-18
A588-GN-18
A588-GN-18
200-BK-18
200-BK-18
200-BK
D
CAB
D
D
+
GND
LIGHT
RS485-
+B
MAIN
RS485+
GND
WASH
+B
PUMP
WIPER
W LOW
W INT
WIPER/WASHER
CONTROLLER
127-9838
D
D
MONITOR
106-0172
SUN LOAD
SENSOR
128-2162(NOTE B)
-
SERVICE
METER
6T-7337
DD
GND
CIGAR
LIGHTER
9W-0335
5
4
3
2
1
OPERATOR STATION
GND
+B
L CHASSIS
L BOOM
WASH
W LOW
W INT
G
G
200-BK-18
A758-BR-18
A757-GY-18
A756-BU-18
113-OR-18
791-RD-18
105-RD
786-GN-18
307-OR-18
A586-OR-18
501-GN-18
SWITCH PANEL
111-4800
9G-7641
R
C
6
S
B
OFF
ON
ST
590-GY-18
A755-PK-18 PK
BU
GN
308-YL-18
BR
BK
200-BK-18
S4
S3
S2
S1
COM
G
THROTTLE
POS SW
106-0107
L6
L5
L4
L4
L3
200-BK-14
200-BK-18
200-BK
A586-OR-18
118-GY
506-PU-18
501-GN-18
590-GY-18
A579-OR
200-BK
129-BU
200-BK-18403-GN-18
201-BK-18
615-YL-18
K912-GN-18
103-RD-18
K997-BU-18
K911-PK-18
C537-GN-18
C538-OR-18
CONTROL GP
136-1206
GN
YL
G
BK
RD
WH
BR
L972-BU-18
200-BK-18
547-OR-18
A588-GN-18
549-PK-18
GRAPPLE SW
(CLOSE)
ROTATE SW
(CCW)
G
G
ONE TOUCH
LOW IDLE SW
200-BK-18
308-YL-18
308-YL-18
KEY START SW
CONN 16
CONN 15
CONN 78
CONN 14
CONN 23
CONN 24
CONN 77
CONN 32
CONN 31
ATCH
GRAPPLE SOL
3E-9205
CLOSE
OPEN
B
1
2
3
4
BK
YL
E853-PU-18
200-BK-18
200-BK-18
E854-GN-18
E853-PU-18
E854-GN-18
200-BK-18
200-BK-18
E853-PU-18
E854-GN-18E854-GN-18
E853-PU-18 E853-PU-18
200-BK-18
200-BK-18
200-BK-18
200-BK-18
E854-GN-18
J
J
1
616-BU
322-GY-18
607-PK
200-BK-18
200-BK-18
200-BK-18
200-BK-18
K906-GN-18
495-GN-18
SWING BRAKE
SOL
121-1491
B
2
1
200-BK-18
200-BK-18
K906-GN-18
FUEL
SENSOR
105-9911
2
1
B
495-GN-18
616-BU
322-GY-18
607-PK
200-BK
200-BK
607-PK
200-BK
322-GY-18
200-BK-18
200-BK
616-BU
607-PK
2
200-BK
200-BK-18
616-BU
200-BK-18
200-BK
200-BK
322-GY-18
200-BK
200-BK-18
322-GY-18
616-BU
200-BK
200-BK-18
200-BK
322-GY-18
2
B
B
B
B
ATCH
BOOM LAMP
5I-8250
CHASSIS
1
HORN
7Y-3919
K
K
200-BK-18
616-BU
CHASSIS
LAMP
135-0550
B
200-BK
607-PK
200-BK
200-BK-18
200-BK-18
322-GY-18
616-BU
CHASSIS
LAMP
135-0550
ATCH
BOOM LAMP
5I-8250
607-PK
607-PK607-PK
2
1
HORN
7Y-3920
L3
L4
L1
L1
CONN 88
CONN 21
CONN 27
CONN 28
CONN 76
CONN 98
RISERCHASSIS
GROUND STRAP
128-8886
MM
GG(NOTE C)
BK-00
101-RD-4
607-PK
BLOCK
121-1023
200-BK-18
200-BK-4
BLOCK AS.
7Y-5499
169-RD-10
615-YL
169-RD-10
GROUND STRAP
7G-1060
RISER PLATFORM
607-PK
607-PK
PP
NN
SS
WW
YY
615-YL
101-RD-8
177-RD-10
VV
XX
200-BK-18
123-WH-14
ZZ
RR
403-GN-18
J703-PK-18
322-GY-18
616-BU
309-GY-18
A718-PU-18
304-WH-8
877-YL-8
101-RD-6
109-RD-6
178-GN-10
179-BU-10
235-BK-18
L908-OR-18
L909-BU-18
A588-GN-18
150-RD-18
151-GN-18
111-RD-14
307-OR-18
579-BR-14
101-RD-6
877-YL-8
304-WH-8
177-RD-10
179-BU-10
L975-PK-18
308-YL-18
109-RD-8
K909-BU-18
308-YL-18
124-RD-14
A770-PK-18
149-PU
615-YL
154-RD-18
786-GN-18
791-RD-18
320-RD-18
103-RD-18
189-RD-14
115-RD-14
109-RD-6
579-BR-14
110-RD-14
607-PK
DISCONNECT SW
7N-0718
7N-0719(NOTE C)
178-GN-10
C C
F
C
F
C
B
6
5
4
3
2
1
10
5
3
4
6
2
1
7
8
9
10
11
12
A718-PU-18
309-GY-18
616-BU
200-BK-18
EE
168-RD-14168-RD-14
327-PK-14327-PK-14
322-GY-18
123-WH-14
2
8
9
3
CHASSIS
200-BK
RELAY PANEL
200-BK-18
BK-00
4
1
307-OR-18
111-RD-14
151-GN-18
F
150-RD-18
A588-GN-18
200-BK
K909-BU-18
6
115-RD-14
189-RD-14
103-RD-18
5
4
5
320-RD-18
791-RD-18
786-GN-18
154-RD-18
615-YL
149-PU
6
3
12
2
1
7
11
8
9
10
A770-PK-18
110-RD-14
124-RD-14
DD
11
7
J703-PK-18
L975-PK-18
12
200-BK-18
403-GN-18
L909-BU
L908-OR
235-BK
GROUND STRAP
134-3344
L21
CC
CONN 59
CONN 61
CONN 60
CONN 58
200-BK-18
A761-PU-18
F773-OR-18
F774-WH-18
547-OR-18
546-BU-18
548-GY-18
549-PK-18
412-BU-18
E856-GY-18
521-YL-18
321-BR-18
492-GY-18
405-GY-18
C468-BU-18
A762-PU-18
788-YL-18
403-GN-18
495-GN-18
496-WH-18
491-PK-18
A769-GY-18
487-OR-18
A768-BU-18
L971-GN-18
168-RD-18
E855-WH-18
K997-BU-18
763-BU-18
L977-YL-18
L978-GY-18
L974-GN-18
A771-PU-18
K906-GN-18
430-BU-18
K904-GN-18
147-PU
579-BR-14
307-OR-18
308-YL-18
111-RD-14
235-BK-18
615-YL
151-GN-18
150-RD-18
A588-GN-18
172-RD-18
L908-OR-18
L909-BU-18
L975-PK-18
168-RD-14
123-WH-14
308-YL-18
180-GN
K909-BU-18
154-RD-18
615-YL
791-RD-18
115-RD-14
110-RD-14
178-GN-10
177-RD-10
179-BU-10
L15
L15
L15
L19
L19
L22
L22
L22
124-RD-14
A770-PK-18
189-RD-14
103-RD-18
320-RD-18
149-PU
786-GN-18
169-RD-10
200-BK-18
200-BK-18
E854-GN-18
E853-PU-18
506-PU-18
200-BK-18
L16
L23
L21
172-RD-18
189-RD-14
320-RD-18
154-RD-18
151-GN-18
150-RD-18
103-RD-18
168-RD-14
115-RD-14
149-PU
177-RD-10
111-RD-14
521-YL-18
K906-GN-18
F773-OR-18
F774-WH-18
A770-PK-18
A769-GY-18
A768-BU-18
791-RD-18
786-GN-18
K909-BU-18
A771-PU-18
L978-GY-18
L974-GN-18
L977-YL-18
K997-BU-18
788-YL-18
A762-PU-18
763-BU-18
412-BU-18
C468-BU-18
321-BR-18
405-GY-18
492-GY-18
491-PK-18
495-GN-18
430-BU-18
496-WH-18
K904-GN-18
A761-PU-18
L971-GN-18
L975-PK-18
487-OR-18
403-GN-18
506-PU-18
L16
F
521-YL-18
123-WH-14
179-BU-10
169-RD-10
169-RD-10
A769-GY-18
491-PK-18
496-WH-18
495-GN-18
403-GN-18
788-YL-18
A762-PU-18
C468-BU-18
405-GY-18
492-GY-18
321-BR-18
F774-WH-18
F773-OR-18
A761-PU-18
K904-GN-18
430-BU-18
K906-GN-18
A771-PU-18
L974-GN-18
L978-GY-18
L977-YL-18
763-BU-18
K997-BU-18
147-PU
487-OR-18
L971-GN-18
546-BU-18
547-OR-18
579-BR-14
549-PK-18
548-GY-18
A768-BU-18
12
8
9
10
11
1
2
4
5
506-PU-18
412-BU-18
L909-BU-18
L908-OR-18
172-RD-18
A588-GN-18
150-RD-18
151-GN-18
615-YL
235-BK-18
111-RD-14
308-YL-18
307-OR-18
6
7
3
546-BU-18
548-GY-18
180-GN
549-PK-18
547-OR-18
AF
F A
1
2
3
4
5
6
7
8
9
12
11
10
K909-BU-18
180-GN
308-YL-18
123-WH-14
168-RD-14
L975-PK-18
1
2
4
5
6
3
F A
3
7
6
5
4
2
1
11
10
9
8
12
F A
AF
177-RD-10
178-GN-10
F A
1
2
3
4
5
6
7
8
9
12
11
10
615-YL
615-YL
308-YL-18
579-BR-14
403-GN-18
235-BK-18
L909-BU-18
L908-OR-18
10
11
12
9
8
7
6
5
4
3
2
1
AF
L11
179-BU-10
178-GN-10
124-RD-14
308-YL-18
110-RD-14
115-RD-14
791-RD-18
615-YL
154-RD-18
786-GN-18
149-PU
320-RD-18
103-RD-18
189-RD-14
A770-PK-18
A588-GN-18
124-RD-14
110-RD-14
L17
L17
L17
L10
307-OR-18
147-PU
A
CONN 29
CONN 103
CONN 45
CONN 46
CONN 47
CONN 48
CONN 50
CONN 65
F
200-BK-18
412-BU-18
COOLANT
LEVEL SW
096-0744
CC BB
AA
ATCH
BATTERY
3T-5760
(NOTE C)
RD-00RD-00BK-00
GRAPPLE CLOSE
RELAY
111-4871
ROTATE CCW
RELAY
111-4871
BB
(NOTE C)
BK-00 RD-00
101-RD-4
200-BK-4
RD-00
POS
NEGNEG
POS
POS
NEGNEG
POS
BATTERY
3T-5760
FF
(NOTE C)
BB
(NOTE C)
GG
(NOTE C)
180-GN
200-BK-18
200-BK-18
200-BK-18
101-RD-4
200-BK-4
ATCH TILT
MOTOR
113-5794
MOTOR
DD EE
L15
308-YL-18
F774-WH-18
F773-OR-18
A761-PU-18
172-RD-18
L23
L23
L23
L23
200-BK-18
4
3
5
200-BK-18
GND
F/B
+B
ACCEL
DECEL
6
ENG GOV
ACTUATOR
106-0126
200-BK-18
F
2
1
F F
AIR CLEANER SW
109-9330
BB
430-BU-18
KEY SW
CONN 82
CONN 71
CONN 66
BK/PK
BK
321-BR-18
ATCH
TRAVEL ALARM
3E-7738
B
200-BK-18
ATCH RELAY PANEL
1
2
3
4
5
6
4
3
2
1
F
FM
M
180-GN
200-BK-18
FF(NOTE C)
RD-00
547-OR-18
180-GN
546-BU-18
549-PK-18
548-GY-18
E855-WH-18
E853-PU-18
E856-GY-18
E854-GN-18
L19
L19
L19
L26
L28
L27
BK
YL
327-PK-14
877-YL-8
C468-BU-18
304-WH-8
B
788-YL-18
B
101-RD-6
MOTBAT
GS
RD-00
B
ENG SPEED
PICKUP
125-2966
A762-PU-18
AA
MOTOR
2
1
STARTER
127-5819
GLOW
PLUG
116-9985
877-YL-8
B
327-PK-14
ENG
SHUTDOWN SOL
117-9343
200-BK-6
109-RD-6
T
A718-PU-18
200-BK-18
AIH COOLANT
TEMP SENSOR
125-2982
B
2
1
BB
B
B
B
200-BK-18
403-GN-18
109-RD-6
J703-PK-18
200-BK-18
521-YL-18
B
309-GY-18
BB
200-BK-18
B
ALTERNATOR
5I-8085
ENG OIL
LEVEL SW
111-4760
1
2
2
1
200-BK-18
200-BK-18
C468-BU-18
405-GY-18
A718-PU-18
T
COOLANT TEMP
SENDER
5I-7578
492-GY-18
492-GY-18
309-GY-18
405-GY-18
403-GN-18
200-BK-6
J703-PK-18
L
E
B
P
R
ALT
B
B
ENG OIL SW
5I-8005
521-YL-18
200-BK-18
ATCH
A/C CLUTCH
SOL
3E-1906
GRAPPLE OPEN
RELAY
111-4871
ROTATE CW
RELAY
111-4871
1
2
CONN 89
CONN 84
CONN 57
CONN 86
CONN 87
CONN 69
CONN 94
CONN 70
G
200-BK-18
K909-BU-18
K907-BU-18
L969-WH-18
A770-PK-18
L968-OR-18
A769-GY-18
A768-BU-18
A769-GY-18
A768-BU-18
K906-GN-18
185-YL-18
185-YL-18
L968-OR-18
200-BK-18
F771-OR-18
F773-OR-18
L969-WH-18
F774-WH-18
11
8
F772-WH-18
5
A770-PK-18
K906-GN-18
2
12
10
K907-BU-18
9
185-YL-18
7
6
4
3
1
185-YL-18
3
2
1
BACKUP
EPR VALVE SW
114-0421
GG
BACKUP
GOV SW
110-7884
K909-BU-18
K909-BU-18
200-BK-18
L2
200-BK-18
PLATFORM
521-YL-18
103-RD-18
103-RD-18
A588-GN-18
105-RD
185-YL-18
129-BU
118-GY
K905-RD
111-RD-14
177-RD-10
149-PU
115-RD-14
168-RD-14
103-RD-18
150-RD-18
151-GN-18
154-RD-18
320-RD-18
189-RD-14
172-RD-18
124-RD-14
509-WH-18
508-PU-18
511-BR-18
512-GN-18
103-RD-18
103-RD-18
521-YL-18
175-RD-14
615-YL
200-BK-14
579-BR-14
147-PU
579-BR-14
110-RD-14
L18
512-GN-18
511-BR-18
509-WH-18
508-PU-18
K905-RD
129-BU
103-RD-18
118-GY
103-RD-18
105-RD
K909-BU-18
A
A
7
8
1
6
5
4
3
2
G
G
12
10
8
11
12
9
10
11
1
9
8
2
7
6
5
4
3
2
1
4
5
6
8
1
7
4
6
5
3
2
7
3
GA
GA
590-GY-18
501-GN-18
A586-OR-18
F771-OR-18
F772-WH-18
L969-WH-18
L968-OR-18
K907-BU-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
L972-BU-18
786-GN-18
791-RD-18
200-BK-18
308-YL-18
185-YL-18
A768-BU-18
A769-GY-18
A770-PK-18
F774-WH-18
F773-OR-18
K906-GN-18
105-RD
113-OR-18
791-RD-18
786-GN-18
A586-OR-18
501-GN-18
590-GY-18
A755-PK-18
A756-BU-18
A757-GY-18
A758-BR-18
105-RD
307-OR-18
308-YL-18
200-BK-18
F771-OR-18
F773-OR-18
F774-WH-18
F772-WH-18
K909-BU-18
K907-BU-18
A770-PK-18
L969-WH-18
L968-OR-18
A769-GY-18
A768-BU-18
K906-GN-18
185-YL-18
200-BK-18
L972-BU-18
185-YL-18
A588-GN-18
A586-OR-18
501-GN-18
590-GY-18
K909-BU-18
547-OR-18
F773-OR-18
F774-WH-18
A770-PK-18
A769-GY-18
A768-BU-18
K906-GN-18
549-PK-18
791-RD-18
786-GN-18
185-YL-18
113-OR-18
L972-BU-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
K907-BU-18
L968-OR-18
L969-WH-18
F772-WH-18
F771-OR-18
200-BK-18
113-OR-18
L18
L6
L9
200-BK-18
235-BK
200-BK-18
200-BK-18
200-BK-14
200-BK-14
169-RD-10
235-BK
200-BK-18
200-BK-14
200-BK-14
200-BK-14
200-BK-18
235-BK
200-BK-18
200-BK-14
235-BK
200-BK-14
200-BK-14
C537-GN-18
C538-OR-18
120-YL
C538-OR-18
C537-GN-18
120-YL
C538-OR-18
C537-GN-18
A513-RD-18
592-BU-18
615-YL
547-OR-18
615-YL
615-YL
615-YL
615-YL
549-PK-18
L5
615-YL
615-YL
592-BU-18
A513-RD-18
200-BK-18
200-BK-18
200-BK-18
103-RD-18
200-BK-14
200-BK-14
200-BK-14
200-BK-18
200-BK-18
200-BK-18
548-GY-18
A588-GN-18
A588-GN-18
615-YL
200-BK-18
180-GN
113-OR-18
546-BU-18
179-BU-10
178-GN-10
113-OR-18
308-YL-18
308-YL-18
308-YL-18
A588-GN-18
307-OR-18
308-YL-18
308-YL-18
307-OR-18
105-RD
308-YL-18
308-YL-18
A588-GN-18
123-WH-14
A588-GN-18
A588-GN-18
549-PK-18
547-OR-18
CONN 17
CONN 18
CONN 19
CONN 20
ENG/PUMP CONT
151-9331
235-BK-18
L909-BU-18
L908-OR-18
487-OR-18
L972-BU-18
A758-BR-18
A757-GY-18
200-BK-18
L975-PK-18
K912-GN-18
K911-PK-18
A756-BU-18
A755-PK-18
235-BK-18
K905-RD-18
308-YL-18
235-BK-18
K905-RD-18
F771-OR-18
F772-WH-18
K907-BU-18
L968-OR-18
L969-WH-18
L971-GN-18
L970-GY-18
A761-PU-18
K904-GN-18
496-WH-18
430-BU-18
495-GN-18
491-PK-18
492-GY-18
MONITOR +B OUT
THROTTLE DIAL S1
THROTTLE DIAL S2
THROTTLE DIAL S3
THROTTLE DIAL S4
GOV ACTR (A)
EPR VALVE (+)
GOV ACTR (B)
GOV ACTR FDBK
COOLANT LEVEL SW
TRAVEL SPEED SOL
ENG SPEED SENSOR (-)
ENG SPEED SENSOR (+)
TRENCHING SOL
IMPLEMENT PRESS. SW
ENG OIL LEVEL SW
FUEL LEVEL SENSOR
405-GY-18
321-BR-18
FRONT PUMP PRESS. SENSOR
HYD OIL LEVEL SW
AIR CLEANER SENSOR
HYD OIL TEMP SENSOR
RS485 - (VALVE CONT)
RS485 + (VALVE CONT)
RS232C (GND)
RS232C (RX)
COOLANT SENSOR
9
20
10
28
31
26
13
30
29
35
40
2
6
39
6
24
25
22
15
ALTERNATOR (R TERM)
RS485 - (RH JOYSTICK)
7
38
12
TRAVEL ALARM
ENG OIL PRESS. SW
36
SWING BRAKE SOL
C468-BU-18
412-BU-18
763-BU-18
A762-PU-18
788-YL-18
23
EPR VALVE (-)
17
21
8
RS485 + (LH JOYSTICK) 7
L977-YL-18
8
L974-GN-18
L978-GY-18
A771-PU-18
RS485 - (LH JOYSTICK)
RS485 + (PEDAL) 9
403-GN-18
10
RS485 + (SEMI AUTO)
RS485 - (PEDAL)
RS485 + (RADIO CONT)17
HYD TANK PRESS. SW
RS485 + (MONITOR)
RS485 - (SEMI AUTO)
HYD TANK INDICATOR
RS485 + (RH JOYSTICK)
RS485 - (MONITOR)
27
18 TRAVEL PRESS. SW
HYD OIL FILTER INDICATOR
18 RS485 - (RADIO CONT)
RS485 + (ELEC GOV)19
+B
+B
AIH INDICATOR
FINE SWING SW
K997-BU-18
BOOM RAISE PRESS. SW
LEVEL FINISH SOL
DUAL PWR SOL
AUX HYD PRESS. SW
32
33
25
RS485 - (ELEC GOV)
26
12
40
2
4
28
27
LOW IDLE SW
21
20
1
11
22
34
3
24
23
14
13
16
15
5
36
35
29
31
30
39
38
37
GND
GND
HAMMER PRESS. SW
RS232C (TX)
A
37
4
3
OPTION SENSOR (PWM)
1
16
19
5
OPTION SENSOR (PWM)
32
33
14
11
34
JOYSTICK +B OUT
K905-RD
235-BK
K997-BU-18
K997-BU-18
KEY START SW ON
KEY SW START
CONN 1
CONN 2
11
12
1
2
3
4
5
6
7
8
9
10
12
11
10
9
8
7
6
5
4
3
2
1
3
6
5
4
2
1
BB
F F
403-GN-18
168-RD-18
A769-GY-18
491-PK-18
496-WH-18
495-GN-18
403-GN-18
788-YL-18
A762-PU-18
C468-BU-18
405-GY-18
492-GY-18
A768-BU-18
168-RD-18
L971-GN-18
491-PK-18
496-WH-18
A768-BU-18
A769-GY-18
L978-GY-18
763-BU-18
L977-YL-18
K904-GN-18
K997-BU-18
L974-GN-18
A771-PU-18
K904-GN-18
327-PK-14
877-YL-8
405-GY-18
C468-BU-18
521-YL-18
K906-GN-18
309-GY-18
J703-PK-18
A771-PU-18
403-GN-18
109-RD-6
L974-GN-18
304-WH-8
492-GY-18
L978-GY-18
A718-PU-18
101-RD-6
L977-YL-18
A762-PU-18
763-BU-18
K997-BU-18
F
B
788-YL-18
521-YL-18
487-OR-18
L971-GN-18
E856-GY-18
E855-WH-18
506-PU-18
200-BK-18
E856-GY-18
E855-WH-18
ATCH
ROTATE SOL
127-7487
ROTATE CCW
ROTATE CW
1
22
1
BB
200-BK-18
200-BK-18
E855-WH-18
E856-GY-18
E855-WH-18
200-BK-18
200-BK-18
E856-GY-18
200-BK-18
L11
L26
L28
L27
L28
607-PK
607-PK
607-PK
L21L1
L27
L26
200-BK-18
200-BK-18
496-WH-18
491-PK-18
168-RD-18
487-OR-18
L977-YL-18
763-BU-18
L978-GY-18
A768-BU-18
A769-GY-18
487-OR-18
168-RD-18
491-PK-18
200-BK-18
PUMP DISCHARGE
PRESS. SENSOR
106-0178
SIGNAL
GROUND
+B
BK-18
BR-18
B
C
CHASSIS
B
YL-18
200-BK-6
200-BK-18
200-BK-18
200-BK-18
K997-BU-18
200-BK-18
K904-GN-18
200-BK-18
A
200-BK-18
496-WH-18
200-BK-18
200-BK-18
B
B
B
B
2
1
ENG/PUMP CONT
SOL
111-9916
LEVEL FINISH
SOL
121-1490
A768-BU-18
TRENCHING
SOL
121-1490
TRAVEL SPEED
SOL
121-1491
A769-GY-18
L978-GY-18
200-BK-18
763-BU-18
200-BK-18
L977-YL-18
200-BK-18
B
L971-GN-18
A771-PU-18
L974-GN-18
200-BK-18
200-BK-18
B
200-BK-18
B
SIGNAL
GROUND
200-BK-18
BOOM RAISE
PRESS. SW
106-0180
B
B
2
1
+B
A
168-RD-18
B
HYD OIL
FILTER
INDICATOR
116-3660
200-BK-18
200-BK-18
200-BK-18
B
IMPLEMENT
PRESS. SW
106-0179
491-PK-18
HYD OIL
TEMP SENDER
4I-5394
HYD OIL
LEVEL SW
111-4760
496-WH-18
C
T
B
200-BK-18
487-OR-18
A769-GY-18
A768-BU-18
200-BK-18
L978-GY-18
200-BK-18
763-BU-18
200-BK-18
TRAVEL
PRESS. SW
106-0179
200-BK-18
L977-YL-18
200-BK-18
K904-GN-18
K997-BU-18
K997-BU-18
K904-GN-18
2
1
1
2
2
1
1
2
ENG
GROUND STRAP
134-3355
1
2
1
2
L20L20
616-BU
322-GY-18
877-YL-8
327-PK-14
J703-PK-18
309-GY-18
109-RD-6
101-RD-6
A718-PU-18
304-WH-8
E856-GY-18
E855-WH-18
E854-GN-18
E853-PU-18
607-PK
E854-GN-18
E853-PU-18
321-BR-18
495-GN-18
K906-GN-18
322-GY-18
616-BU
200-BK-18
487-OR-18
F
147-PU
2
1
CONN 56
CONN 55
CONN 54
CONN 53
CONN 79
CONN 80
CONN 81
CONN 96
CONN 25
CONN 91
CONN 92
CONN 93
CONN 26
CONN 90
CONN 95
CONN 97
L9
506-PU-18
615-YL-18
615-YL
103-RD-18
118-GY
103-RD-18
129-BU
508-PU-18
509-WH-18
511-BR-18
512-GN-18
590-GY-18
501-GN-18
A586-OR-18
200-BK-14
200-BK-14
K997-BU-18
403-GN-18
200-BK-18
K905-RD
235-BK
K911-PK-18
K912-GN-18
L9
WASHER
7T-8890
MOTOR
506-PU-18
200-BK-18
F
K905-RD
235-BK
200-BK-18
120-YL
C537-GN-18
C538-OR-18
592-BU-18
A513-RD-18
118-GY
118-GY
615-YL
615-YL
L2L2
L10 L10
L27
CONN 22
C
B
A
L972-BU-18
308-YL-18
A758-BR-18
A757-GY-18
A756-BU-18
A755-PK-18
K912-GN-18
K911-PK-18
235-BK
K905-RD
200-BK-18
F771-OR-18
F772-WH-18
K907-BU-18
L968-OR-18
L969-WH-18
A A
AA
A A
2
3
4
5
6
1
L975-PK-18
K997-BU-18
L970-GY-18
L971-GN-18
487-OR-18
A761-PU-18
K904-GN-18
496-WH-18
430-BU-18
K997-BU-18
495-GN-18
491-PK-18
492-GY-18
405-GY-18
7
8
1
6
5
4
3
2
321-BR-18
C468-BU-18
412-BU-18
2
3
4
5
6
11
1
10
9
8
7
12
763-BU-18
A762-PU-18
788-YL-18
403-GN-18
L977-YL-18
L974-GN-18
L978-GY-18
A771-PU-18
L908-OR-18
L909-BU-18
235-BK-18
A
L10
A
L9
L2
CONN 5
CONN 4
CONN 3
CONN 85
ATCH
ANTENNA
8E-1118
L1
403-GN-18
129-BU
615-YL-18
103-RD-18
K912-GN-18
K911-PK-18
K997-BU-18
C538-OR-18
C537-GN-18
501-GN-18
506-PU-18
590-GY-18
200-BK-14
A586-OR-18
615-YL
A579-OR
118-GY
592-BU-18
A513-RD-18
615-YL
5
3
6
2
1
4
BK
615-YL
4
3
2
592-BU-18
A513-RD-18
200-BK-18
512-GN-18
200-BK-18
511-BR-18
508-PU-18
6
5
3
4
1
118-GY
A579-OR
2
8
511-BR-18
200-BK
512-GN-18
509-WH-18
7
200-BK-14
120-YL
509-WH-18
508-PU-18
1
103-RD-18
200-BK-14
615-YL
200-BK-18
103-RD-18
512-GN-18
511-BR-18
509-WH-18
508-PU-18
200-BK
200-BK-18
LH SPKR (-)
CONV (OUT)
GND
CONV (MEM)
RH SPKR (-)
RH SPKR (+)
P
B+
2
E
E
ATCH
12 VDC RADIO
3E-7140
3
4
5
6
E
E
E
E
11
1
10
9
8
7
12
CONVERTER
112-3543
(2.5A)
GND
OR
BR
+
-
CAB
DOME LAMP
6C-9121
5
6
1
4
3
8
7
2
4
6
5
2
1
3
SPEAKER (R)
6T-7695
E
E D D
A A A
L4
L3
LH SPKR (+)
L27
E
A
L4
L3
GY
UPPER WIPER
MOTOR
134-5551
SPEAKER (L)
6T-7695
-
+
IN
IGN
GND
MEM
OUT
GN
T
H
L
MOTOR
CONN 7
CONN 6 CONN 8
CONN 9
CONN 13
CONN 10
L3
9 8 7 6 5 4 3 2 1
G
J
H
F
E
D
C
B
A
H
G
J
F
E
D
C
B
A
9 8 7 6 5 4 3 2 1
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS OFF.
WIRES THAT HAVE BATTERY VOLTAGE
WHEN THE KEY SWITCH IS ON.
STARTING CIRCUIT.
GAUGE CIRCUIT.
MONITORING CIRCUIT.
WASHER/WIPER CIRCUIT.
HEATER AND AIR CONDITIONER CIRCUIT.
GROUND CIRCUIT.
ENGINE/PUMP CONTROL CIRCUIT.
AIH CIRCUIT.
ENGINE SHUTDOWN CIRCUIT.
ALL DASHED LINES ARE ATTACHMENTS.
Code Description of Problems
1301 Engine oil pressure is too low.
1302 Engine coolant temperature is too high.
1303 Hydraulic oil temperature is too high.
1304 Air filter is clogged.
1305 Battery voltage is not normal.
2201 Governor actuator feedback sensor circuit is open or shorted to battery voltage.
2202 Governor actuator feedback sensor circuit is shorted to body ground.
2301 Governor actuator feedback signal is not stable.
2302 Governor actuator feedback signal deviates.
2303 Governor actuator does not move.
2304 Calibration data error.
3201 Monitor RAM is not normal.
4101 Electric power supply to the controller is too much (43 volts).
4102 Over-current in proportional reducing valve.
4103 Proportional reducing valve circuit is open.
4104 Monitor power supply (digital output) over current.
4105 Over-current in digital output (trenching solenoid).
4106 Over-current in digital output (fine control solenoid).
4107 Over-current in digital output (travel speed change solenoid).
4108 Over-current in digital output (travel alarm).
4109 Spare solenoid 1 (digital output) over current.
410A Over-current in digital output (swing brake solenoid).
410b Spare solenoid 2 (digital output) over current.
4201 Engine speed is not normal.
4202 Engine coolant temperature sensor is shorted to body ground.
4203 Hydraulic oil temperature sensor is shorted to body ground.
4204 PWM sensor of pump delivery pressure is shorted to body ground.
4205 Spare PWM sensor 1 is shorted to body ground.
4206 Spare PWM sensor 2 is shorted to body ground.
4207 PWM sensor of pump delivery pressure is open in circuit.
420A Fuel sensor is shorted to body ground
420b Fuel sensor is open or shorted to battery voltage.
420C Electric power supply is to low (below 23 volts).
420d Electric power supply is to high (above 32 volts).
420E Engine speed dial is not in one of the 10 specified positions.
4301 Data mismatch 1 between alternator and speed sensor (alternator is abnormal).
4302 Data mismatch 2 between alternator and speed sensor (speed sensor is abnormal).
4303 Engine stalls.
A201 Monitor communication is not normal.
A202 Monitor takes too much time to respond to controller's signal.
A203 Communication is abnormal in controller.
A20d ADEM communication disconnect.
Real Time Error Codes
A AA
1
2
325-PK-14
200-BK-14
T
This indicates that the component does not have a wire connected to ground. It is
grounded by being fastened to the machine.
This indicates that the component has a wire connected to it that is connected to ground.
105-9344
T
Normally open switch that will close with an increase of a specific condition (temp-press-etc.).
The circle indicates that the component has screw terminals and a wire can be disconnected from it.
Pin
Socket
Fuse
Component
Part Number
Pin or Socket
Number
Receptacle
Plug
Wire Gauge
Wire, Cable, or Harness
Assembly Identification
Wire Color
Normally closed switch that will open with an increase of a specific condition.
No circle indicates that the wire cannot be disconnected from the component.
Single Wire
Connector
Circuit Number
Identification
Ground
Connection
Pressure
Symbol
Temperature
Symbol
Level
Symbol
Flow
Symbol
Circuit Breaker
Symbol
Reed Switch - A switch whose contacts are controlled by a magnet. A magnet closes the
contacts of a normally open reed switch; it opens the contacts of a normally closed reed switch.
Sender- A component that is used with a temperature or pressure gauge. The sender
measures the temperature or pressure. Its resistance changes to give an indication to
the gauge of the temperature or pressure.
Relay (Magnetic Switch) - A relay is an electrical component that is activated by electricity.
It has a coil that makes an electromagnet when current flows through it. The
electromagnet can open or close the switch part of the relay.
Solenoid - A solenoid is an electrical component that is activated by electricity. It has a
coil that makes an electromagnet when current flows through it. The electromagnet
can open or close a valve or move a piece of metal that can do work.
Harness And Wire Symbols
Electrical Schematic Symbols And Definitions
1
1
2
2
Typical representation of a Sure-Seal
connector. The plug and receptacle
contain both pins and sockets.
Typical representation of a Deutsch
connector. The plug contains all
sockets and the receptacle contains
all pins.