M312/M315 ELECTRICAL SYSTEM SCHEMATIC USED IN SERVICE MANUAL SENR8940,8920

Component Location

Description

Schematic

Location

Machine

Location

Description

Schematic

Location

Machine

Location

AEC - Aux. Hyd. G-8 D Solenoid - Main Pump PRV. H-14 37

Air Horn E-7 62 Solenoid - Parking Brake G-14 40

Alternator D-13 62 Solenoid - Right Front Stabilizer Lockout H-1 2

Alternator Fuse D-15 71 Solenoid - Right Rear Stabilizer Lockout I-10 4

Battery 12v (2) I-13 23 Solenoid - Swing Brake G-15 34

Cigar Lighter F-2 A Solenoid - Swing Pump PRV. G-14 36

Converter 24v - 12v D-3 A Solenoid - Transmission Speed G-13 41

Diode - AEC - Aux. Hyd. F-8 D Solenoid - Travel Activation G-15 33

Diode - Brake E-6 D Stop Lamp F-7 D

Diode - Harness AS B-8 D Supplemental Steering Control H, I-14 26

Diode - Stop Lamp F-8 D Switch - AEC B-10 C

Diode - Temp E6 D Switch - AEC Boom Cyl. F-15 59

Engine Control C-12, B-12 A Switch - AEC Impl. Travel F-15 45

Engine Pump Control C-11, B-11 A Switch - AEC Stick Cyl. F-15 59

Engine Speed Dial C-2 C Switch - AEC Swing E-15 43

Fuse Block (A Black) G-10 D Switch - Air Filter Clog C-14 70

Fuse Block (B Yellow) G-9 D Switch - Air Horn H-2 A

Fuse Block (C Green) F-10 D Switch - Aux. Hyd. (ccw rotation) E-3 B

Fuse Block (D Red) F-9 D Switch - Aux. Hyd. (cw rotation) C-5 C

Glow Plug (Qty. 2) C-14 72 Switch - A/C B-11 C

Hour Meter E-5 D Switch - A/C Refrigerant Pressure E1-4 57

Main Fuse G-8 68 Switch - Backup C-11 C

Monitor Panel C-2 C Switch - Beacon B-5 C

Motor - Air Conditioner Fan E-14 55 Switch - Brake Light H-5 17

Motor - Governor Actuator C-13 72 Switch - Brake Light Cutoff E-3 B

Motor - Heater Fan B-8 20 Switch - Coolant Temp D-13 64

Motor - Lower Wiper F-1 7 Switch - Coolant Temp Cold Start C-13 65

Motor - Re-fueling Pump I-13 25 Switch - Creeper Speed C-6 C

Motor - Starter D-14 67 Switch - Disconnect I-12 24

Motor - Suppl. Steer I-12 28 Switch - Engine Oil Press D-13 61

Motor - Upper Washer H-12 32 Switch - Fwd/Rev Travel Alarm (Qty.2) H-6 19

Motor - Upper Wiper F-2 A Switch - Front Flood Lamp D-5 C

Motor - Washer Lower H-12 32 Switch - Hammer B-8 C

Pilot Press Enable F-7 D Switch - Hazard B-4 C

Radio G-2 A Switch - Head Lamp D-5 C

Relay - A/C Clutch E-13 56 Switch - Heater Fan B-10, 9 C

Relay - A/C Fan E-13 D Switch - Heavy Lift C1-0 C

Relay - Brake G-6 D Switch - Horn/Turn /High Beam H-3 A

Relay - Brake / Travel Cutoff E-5 D Switch - Hyd. Oil Filter Clog E-14 54

Relay - Flasher/Warning Light G-7 D Switch - Hyd. Oil Low Temp E-14 53

Relay - Main Power G-7 D Switch - Key (Start) C, D-7 C

Relay - Power Mode F-6 D Switch - Left Front Stabl. Lockout C-8 C

Relay - Start C-15 69 Switch - Left Rear Stabl. Lockout C-9 C

Relay - Start / Stop D-13 D Switch - Low Brake Press. H-5 18

Relay - Supplementary Steering I-13 27 Switch - Low Trans. Clutch Press. F-13 42

Relay - Temp F-6 D Switch - Lower Windshield E-2 A

Relay - Trans Speed G-6 D Switch - Lower Wiper C-7 C

Relay - Travel Alarm G-6 D Switch - Overload Warning Device A-5 C

Resistor - Backup Main Pump PRV E-10 D Switch - Overload Warning Device C-8 15

Resistor - Backup Swing Pump PRV E-10 D Switch - Parking Brake B-5 C

Resistor - Heater Fan B-8 21 Switch - Pilot Control Lock B-5 C

Resistor - Start / Stop E-8 72 Switch - Power Mode D-6 C

Sender - A/C Temp Regulator B-10 22 Switch - Primary Steering Flow H-4 16

Sender - Coolant Temp D-13 63 Switch - Rear Flood Lamp C-5 C

Sender - Fuel Level G-14 46 Switch - Refueling Pump F-5 D

Sender - Hyd. Oil High Temp F-14 52 Switch - Reverse Steer Prox. B-5 14

Sensor - Engine Speed D-15 66 Switch - Right Front Stabl. Lockout B-8 C

Solenoid - Aux. Hyd. (ccw rotation) H-15 B Switch - Right Rear Stabl. Lockout B-9 C

Solenoid - Aux. Hyd. (cw) H-14 C Switch - Starting Pilot Press. Enable E-4 B

Solenoid - A/C Clutch E-14 58 Switch - Swing Brake H-2 C

Solenoid - Blade Front H-1 2 Switch - Swing Brake C-5 A

Solenoid - Blade Rear I-10 4 Switch - Trans Speed C-6 C

Solenoid - Creeper Speed G-14 35 Switch - Travel Alarm Cancel C-5 C

Solenoid - Engine Start / Stop D-13 60 Switch - Travel Cutoff G-5 D

Solenoid - Hammer F-13 44 Switch - Travel Lock B-6 C

Solenoid - Heavy Lift G-14 59 Switch - Travel Pedal H-2 A

Solenoid - Impl. Activation H-15 32 Switch - Upper Windshield E-2 A

Solenoid - Left Front Stabilizer Lockout H-1 1 Switch - Upper Wiper B-7 A

Solenoid - Left Rear Stabilizer Lockout H-10 4 Travel Lock Magnet I-2 A

A = Located in the cab.

B = Located in the lefthand console.

C = Located in the righthand console.

D = Located on or near relay panel.

Machine locations are repeated for components located close together.

Connector Location

Connector Number

Schematic

Location

Machine

Location

CONN 1 I-14 25

CONN 2 E-13 55

CONN 3 H-13 26

CONN 4 C-12 61

CONN 5 C-11, D-11 61

CONN 6 D-11 61

CONN 7 F-11, E-11 61

CONN 8 G-11, F-11 61

CONN 9 I-10 4

CONN 10 H-10 4

CONN 11 E-10, 9, 8 61

CONN 12 D-10 C

CONN 13 F-5 D

CONN 14 E-4 B

CONN 15 D-2 3

CONN 16 H-1 2

CONN 17 H-1 2

CONN 18 E-1 11

The connectors shown in this chart are for harness to harness connectors.

Connectors that join a harness to a component are generally located at or near

the component. See the Component Location Chart.

Related Electrical Service Manuals

Title Form Number

Alternator: 109-2362 SENR3685

Electronic Control System SENR8937

Resistor, Sender, and Solenoid Specifications

Part No. Component Description Resistance (Ohms)¹

3E-1906 Solenoid - A/C Clutch 17.6 ± 0.6

Blade Front,

Blade Rear

Hammer

Heavy Lift

8U-6424 Solenoid - Left Front Stabilizer Lockout 19

Left Rear Stabilizer Lockout

Parking Brake

Right Front Stabilizer Lockout

Right Rear Stabilizer Lockout

Transmission Speed

112-7178 Sender - Fuel Level Full = 0.4

Empty = 70.6

38.5 @ 100° C (212° F)

116-4710 Sender - Hydraulic Oil Temperature Switch 51.2 @ 90° C (194° F)

134 @ 60° C (140° F)

124-0329 Resistor - Backup Main Pump PRV Overall 6.0; Tap 1.5 or 4.5

Backup Swing Pump PRV

¹ At room temperature.

Off Machine Switch Specification

Part No. Function Actuate Deactuate Contact Position

3E-6429 Primary Flow 4.0 grams 1.5 grams Normally

(0.14 oz) (0.05 oz) Open

5W-9972 Low Brake Pressure 10000 kPa -- Normally

(1450 psi) -- Open

8U-2158 Brake Light Pressure 500 kPa -- Normally

(72.5 psi) -- Open

9D-7032 Forward/Reverse Travel Alarm Pressure 517 ± 34.5 kPa 414 ± 34.5 kPa Normally

(75.0 ± 5.0 psi) (60.1 ± 5.0 psi) Open

114-5333 Refrigerant Pressure (AC) 275 to 1750 kpa¹ -- Normally ²

(40 to 255 psi) -- Open

116-4710 Hydraulic Oil High Temperature 94º C -- Normally

(201º F) -- Open

116-8514 Hydraulic Oil Filter Clog Pressure 250 kPa -- Normally

(36.3 psi) -- Open

117-0651 AEC Implement Travel Pressure 1500 kPa -- 1 to 2 Normally Closed

(218 psi) -- 1 to 3 Normally Open

118-5501 Overload Warning Device Pressure 16000 kPa -- Normally

(2320 psi) -- Open

119-3399 Coolant Temperature 100º C -- Normally

(212º F) -- Open

119-3400 Hydraulic Oil Low Temperature 11º C 17º C Normally

(52º F) 63º F Open

¹ A hysteresis band exists: with increasing pressure the closed condition can be maintained up to 2800 kpa (405 psi), with decreasing pressure the

closed condition can be maintained down to 170 kpa (25 psi).

² Contact position at the contacts of the harness connector.

System Faults Detected by the Controller

Error Message Logged Result of Fault Possible Causes

Main Pump Circuit No Main pump set to minimum output. Main pump PRV solenoid faulty.

Open in harness wiring for main PRV solenoid.

Harness wiring for main PRV solenoid shorted to ground.

Low Voltage No None. Battery Voltage below 17 DCV.

RPM Setting Diff No Engine operates at high idle. Engine speed requested does not match the actual governor actuator

(No effect AEC or heavy lift operation) position.

RPM Setting High No Low idle speed too low. Governor actuator position signal too high.

Engine stall speed too high or low. Open or shorted supply voltage circuit.

Low idle stop passed.

RPM Setting Low No High idle speed too high. Governor actuator position signal too low.

Engine stall speed too high or low. Open or shorted supply voltage circuit.

High idle stop passed or engine speed adjustment loose.

Swing Pump No Swing pump set to minimum output. Swing pump PRV solenoid faulty.

Open in harness wiring for swing PRV solenoid.

Harness wiring for swing PRV solenoid shorted to ground.

Low Engine Speed No Hydraulic pump outputs are reduced. Engine speed sensor indicates engine speed is below 800 rpm.

Engine speed sensor is not adjusted properly or is faulty.

Open in harness wiring from engine speed sensor to controller.

Harness wiring for engine speed sensor shorted to ground.

Incorrect number of flywheel teeth specified in parameter settings

High Engine Speed Yes Engine Overload. Engine speed sensor indicates engine speed is above 2200 rpm.

Engine Stalls. Incorrect number of flywheel teeth specified in parameter settings.

RPM Dial Setting Yes Engine speed set to high idle. Engine speed dial is faulty.

(No effect AEC or heavy lift operation) Engine speed dial signal circuit has an open.

Engine speed dial supply voltage circuit has an open or is shorted to ground.

Engine speed dial signal circuit is shorted to ground.

Heavy Lift Circuit Yes Heavy lift does not operate correctly. Heavy lift solenoid is faulty.

Open in harness wiring for heavy lift solenoid.

Harness wiring for heavy lift solenoid is shorted to ground.

Mode Switch Open Yes Power mode 1 selected no matter what Mode switch is faulty.

the position of the power mode switch. Open in harness wiring for mode switch.

Mode switch supply voltage circuit has an open or is shorted to ground.

Mode Switch Short Yes Power mode 1 selected no matter what Mode Switch is faulty.

the position of the power mode switch. Short to ground in harness wiring for mode switch.

Pressure when the engine is stopped.

Travel Lock Switch Yes Control of the travel pedal magnet Travel lock contacts are dirty.

is possibly disturbed.

Normally open switch that will close with an increase of a specific condition (temp-press-etc.).

Normally open switch that is closed due to an applied condition, and will open again with a

specific decrease in that condition.

Normally closed switch that will open with an increase of a specific condition.

Normally closed switch that is open due to an applied condition, and will close again

with a specific decrease in that condition.

The circle indicates that the component has screw terminals and a wire can be disconnected

from it.

No circle indicates that the wire cannot be disconnected from the component.

This indicates that the component has a wire connected to it that is connected to ground.

This indicates that the component does not have a wire connected to ground. It is grounded

by being fastened to the machine.

Electrical Schematic Symbols And Definitions

Pressure

Symbol

Temperature

Symbol

Level

Symbol

Flow

Symbol

A AA

325-PK-14

200-BK-14

FUSE - A component in an electrical circuit that will open the circuit if too much current flows

through it.

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.

CIRCUIT BREAKER (C/B) - A component in an electrical circuit that will open the circuit if too

much current flows through it. This does not destroy the circuit breaker and it can be reset to

become part of the circuit again.

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 Electrical Schematic Symbols

Socket

Pin or Socket

Number

Wire, Cable, or Harness

Assembly Identification

Single Wire

Connector

Circuit Number

Identification

Wire

Gauge

Wire

Color

Plug

Receptacle

9X-1123

Component

Part Number

Electrical Schematic Symbols And Definitions

Typical representation of a

Sure-Seal connector. The

plugand receptacle contain

both pins and sockets.

Typical representation of a

Deutsch connector. The

plug contains all sockets

and the receptacle contains

all pins.

5352

SENR8932-03

March 1999

M312 and M315 Excavators

Electrical System

M312:

6TL1-UP

M315:

7ML1-UP

1999 Caterpillar

Printed in U.S.A.

MAGNETIC LATCH SOLENOID - A magnetic latch solenoid is an electrical component that is

activated by electricity and held latch by a permanent magnet. It has two coils (latch and unlatch)

that make electromagnet when current flows through them. It also has an internal switch that places

the latch coil circuit open at the time the coil latches.

AWG MM*2

0 50

4 16

6 10

8 6

10 4

12 2.5

14 1.5

16 1

00 70

ABBREV COLOR

BK BLACK

BR BROWN

BU BLUE

GN GREEN

GY GRAY

OR ORANGE

PK PINK

PU PURPLE

RD RED

WH WHITE

YL YELLOW

1 PARKING LIGHTS RHS 7,5

2 PARKING LIGHTS LHS 7,5

3 INSTRUMENT LIGHTING 7,5

4 LOW BEAM RHS 7,5

5 LOW BEAM LHS 7,5

6 HIGH BEAM RHS 7,5

7 HIGH BEAM LHS 7,5

8 CONTROL LIGHTS; TURN SIGNAL 7,5

FUSE "A" BLACK

1 BACKUP 7,5

2 POWER MODE SELECTION 7,5

3 INDIVIDUAL STABILIZERS 7,5

4 WORKING LIGHTS 15

5 HAMMER BLOW FREQUENCY ADJUST.; FLOW CONTROL 7,5

6 ELECTRONICS 7,5

7 ROTATING BEACON 15

8 AIR SUSPENDED DRIVER SEAT; PRIORITY 7,5

FUSE "C" GREEN

1 STOP LIGHT 7,5

2 AIR CONDITION 20

3 HORN; BUZZER (OVERLOAD); 1/3 PRESSURE DROP 7,5

4 BLUE LIGHT (REVERSE STEERING); TRAVEL ALARM 7,5

5 ARM REST SWITCH; SWING GEAR; MISCELLANEOUS- 15

6 SUPPLEMENTAL STEERING 7,5

7 WINDSHIELD WIPER UPPER AND PUMP 7,5

8 WINDSHIELD WIPER LOWER AND PUMP 7,5

FUSE "D" RED

FUNCTION; RELAY TRAVEL CUT OFF; PARK BRAKE;

TRANSMISSION SPEED; CREEPER SPEED; CAB-RISER

1 ELECTRICAL FUEL LIFT PUMP 25

2 WARNING LIGHT 7,5

3 STARTER KEY SWITCH; MAIN POWER-RELAY; LIGHT 15

4 POTENTIAL TRANSFORMER 24V /12V (RADIO) 7,5

5 START/STOP SOLENOID; COLD START SYSTEM 7,5

6 COMPRESSOR AIR HORN 15

7 HEATER FAN 15

8 CIGARETTE LIGHTER; PLUG; DOME LIGHT 7,5

FUSE "B" YELLOW

IDENT

PART-NO. LOC

A 147-5913 E-10

B 126-0928 E-10

D 133-2103 D-11

E 120-6922 D-11

F 120-6923 D-11

G 144-7391 D-11

H 139-0549 E-2

J 120-6920 E-4

K B-10

L 119-8301 I-15

M 120-6919 E-1

N 129-3454 I-13

P 121-0876 I-12

R 121-0877 I-12

T 121-0879 I-13

U 122-2360 D-15

V 145-9202 F-13

W 132-7212 I-13

X 122-2364 I-13

Y 121-2972 H-9

Z 121-2973 I-1

AA 122-2365 H-1

BB 122-2366 H-1

CC 129-4673 D-14

DD 8X-9618 H-2

139-8284

EE 123-6475 C-12

GG 126-6801 I-12

140-9123

HH 128-1041 D-13

JJ 128-1042 D-14

KK 128-1043 D-13

C G-11

LL 145-9203 E-13

COMPONENTS ARE SHOWN INSTALLED ON A FULLY

OPERABLE MACHINE WITH THE KEY AND ENGINE OFF.

THIS SCHEMATIC IS FOR THE M312/M315 EXCAVATOR

(128-0764 CHG 04).

NOTE A: SWITCH SHOWN WITH NO HYDRALIC DEMAND.

NOTE: ALL CONSOLE SWITCHES ARE SHOWN WITH THE FRONT

OF THE SWITCH DEPRESSED, AS SEEN FROM THE OPERATORS SEAT.

BK/YL(1)

RADIO

165-5934

SPEAKER

5W-8937

SPEAKER

5W-8937

DOME LIGHT

5W-2041

CIGAR LIGHTER

5W-9628

UPPER WIPER

122-2367

FLOOD LAMP

120-6776

FLOOD-LAMP

120-6776

REAR WORK

LAMP AS.

120-6776

UPPER WINDSHIELD

122-2369

TO CAB

PU(7)

YL (2)

GY/BK (1)

GY(7)

BK/PU (1)

GN(8)

BK/GN(10)

BK (12)

BU/WH (1)

BK/WH (5)

BK-14

ANTENNA

5W-9391

BEACON

116-9627

BK/YL(1)

YL(14)

BK/WH (5)

BK/WH (6)

BU/WH (1)

PU(7)

GY/BK(2)

BK (12)

GY(7)

GY/BK (1)

BK/GN(10)

BK-14

YL(2)

BK/GN/RD (8)

GN/BR (2)

BK/RD (1)

GN(2)

BK/GN/RD(1)

BK/GN/RD(8)

RD/YL (8)

GN(10)

BK/GN/RD(9)

GN/BR (2)

BK/RD (1)

PU(7)

OR(1)

PU(7)

CONVERTER

24V-12V

120-6566

AEC SW

5W-9372

A/C SW

5W-9347

HAMMER

SWITCH

8U-7284

OVERLOAD WARNING

DEVICE SWITCH

5W-9347

LOWER

WIPER SW

5W-9744

UPPER

WIPER SW

5W-9744

TRAVEL LOCK

SWITCH

8U-6357

PARKING

BRAKE SW

8U-6353

SWING BRAKE

SWITCH

8U-6353

CREEPER SPEED

SWITCH

5W-9347

PILOT CONTROL

LOCK SW

5W-9372

BEACON SW

5W-9347

TRAVEL ALARM

CANCEL SW

8U-6357

REAR FLOOD

LAMP SW

5W-9347

FRONT FLOOD

LAMP SW

5W-5867

HEAD

LAMP SW

5w-5867

BK (12)

GY(7)

BK/GN(10)

GN(8)

BK/PU (1)

BU/WH (1)

BK/WH (5)

BK/YL (1)

YL (2)

GY/BK (1)

TO FRAME

GY(2)

BK (1)

RD/YL(6)

BK (6)

RD/YL(1)

BK/GN/RD(3)

RD(5)

BK/GN/RD(3)

BK/YL(1)

BK (6)

BU/WH(1)

BK (1)

BK/WH (5)

BK/YL/WH(2)

RD/YL(1)

RD/YL(6)

RD/YL (30)

RD/YL (17)

BU/WH (1)

BK/YL(1)

BK/GN/RD(7)

GN/BU(5)

BK/GN(6)

BK/GN(12)

BK/GN(2)

BU/YL(1)

BU/YL(2)

PU(2)

BK/WH (1)

BK/GN/RD(6)

BK/GN(3)

BK/GN(2)

GN/BU(5)

BK/GN(6)

BK/GN/RD(2)

BK/GN/RD(5)

YL (10)

RD/YL(30)

BU/YL(2)

BK/GN(3)BK/GN(11)

BK/WH (1)

OR(2)

RD/YL(31)

PU(1)

GN/BR(2)

BK/RD(1)

WH(6)

WH(5)

BK/WH (3)

GN (8)

BK (12)

WH(5)

WH(6)

BK/GN(7)

BK/GN(10)

GY(7)

BK (12)

GN(8)

BU(10)

GN (9)

RD (2)

RD(3)

RD(2)

YL(1)

YL(9)

RD/YL (7) WH(1)

BK (2)RD/YL(5)

RD/YL(27)

BK(3)

RD/YL (29)

RD/YL(28)

BK (4)

BK (5)

BK (3)

RD/YL (5)

BK (2)

RD/YL (7)

YL (1)

WH(1)

RD/YL(3)TO FRAME

BK BK

PU(8)

RD(21)

GY(1)

GYBK

YL(7)

YL (13)

YL(8)

YL (7)YL(13)

BU(11)

RD(20)

BK (10)

YL(11)

YL(12)

BU(10)

GN (9)

RD(21)

PU(8)

SHIELD

RD(24)

WH(6)

BK/GN(7)

BK/WH(3)

GN/BU(5)

BK/GN(6)

BK/YL/WH(2)

GY (1)

BR/BK (2)

BR/WH(3)

RD/YL (3)

RD/YL (5)

BK (2)

RD/YL (7)

BK (3)

BK (4)

BK (5)

YL (1)

WH(1)

RD (2)

RD (3)

BU/YL (1)

BU/YL (2)

PU(2)

BK/WH (1)

BK/GN/RD(2)

BK/GN(2)

BK/GN(3)

GY(2)

BK (1)

RD/YL(1)

BK (6)

RD/YL(6)

BK/GN/RD (3)

BR/WH (2)

GN/WH(1)

RD(5)

RD(1)

GN/BR (1)

BK (7)

WH(2)

BK/GN(1)

BK (8)

OR (3)

WH(3)

BU (1)

BR/BK (1)

RD (4)

BR/WH (1)

GN(3)

BU(2)

RD/YL(2)

RD/YL(9)

BU(4)

BK/PU (1)

GY/BK (1)

YL (2)

OR(1)

BK/RD (1)

GN/BR(2)

GN (2)

RD/YL (8)

BK/GN/RD(1)

GY(1)

STOP LAMP

117-4861

BRAKE

117-4861

TRANS SPEED

117-4861

TEMP.

117-4861

REFUELING

PUMP SWITCH

8U-3011

YL (4)

BK/YL/WH(1)

BK/WH (2)

GN/WH(2)

GN/BU(2)

BK/PU (2)

GN/WH(3)

GN/BU(3)

GY(3)

RD/YL (10)

BK/GN(4)

PU (2)

BK/GN(5)

RD (6)

BR (1)

BK (8)

WH(3)

GN/BU (1)

BU (1)

BR/WH (3)

BK/GN/RD(3)

GN/BR (2)

BK/GN (3)

BK/WH(1)

GN/BR (4)

GN/BR (3)

BU/YL (3)

GN (4)

GN/BR(3)

GN/BR(4)

GN(4)

BU/YL(3)

WH(4)

RD/YL (11)

GN/BU(4)

GN/WH(4)

GY (4)

RD (8)

RD/YL (12)

RD (7)

BU/YL (4)

RD (1)

BU (7)

GN (5)

BU (5)

WH(1)

BK (4)

BK (5)

BK (2)

BK (3)

YL (1)

BK (1)

BR/WH (2)

BR/BK (1)

BR/WH (1)

BR/BK (2)

GN (2)

RD (10)

BU (8)

WH(7)

YL (5)

BU (9)

RD (11)

GN (6)

BU (10)

BK/GN (6)

GN/BU (5)

BK/GN (7)

BK/WH (3)

BK/YL/WH(2)

WH(5)

WH(6)

WH(1)

BK (1)

BK (2)

BK (3)

BK (4)

YL (1)

BK (5)

BR/WH (1)

BR/BK (1)

BR/WH (2)

BR/BK (2)

RD(1)

BU(1)

BR/WH (3)

BK/GN/RD(3)

GN/BR(2)

BK/GN(3)

BK/WH (1)

BK (8)

WH(3)

OR (1)

RD/YL (9)

RD/YL (8)

RD(4)

GY/BK (1)

BK/PU (1)

BU/YL (2)

RD/YL (5)

RD/YL (6)

RD/YL (7)

RD/YL (1)

RD(5)

BK (7)

RD(3)

RD/YL(3)

YL (2)

GY(1)

GN/WH(1)

RD/YL (2)

GY(2)

RD (2)

GN/BR(1)

BK/GN(1)

BK/GN/RD(2)

BK/GN/RD(1)

BK/RD (1)

BK/GN(2)

BU (4)

GN (3)

BU/YL(1)

BK (6)

WH(2)

BU (2)

RD-14(1)

GN/WH(2)

GN/BU(2)

GY(2)

RD-10(6)

RD-10(4)

RD-10(3)

RD-10(1)

RD-10(8)

RD-10(7)

RD/YL (2)

GN/WH(3)

GN/WH(1)

GN/WH(4)

GN/BU (3)

GN/BU(4)

GY(1)

GY(3)

GY(5)

GY(4)

GY(6)

YL (2)

RD/YL(16)

RD/YL(3)

RD(16)

RD(18)

OR(1)

RD(3)

BK (7)

RD(19)

BU-10(2)

RD(5)

RD/YL(1)

RD(10)

RD/YL(14)

RD/YL(7)

RD/YL(6)

RD/YL(5)

BU/YL(2)

BK/PU (1)

BK/PU (2)

GY/BK (1)

RD (4)

RD (8)

RD/YL (8)

RD/YL (15)

RD/YL (12)

RD/YL (13)

RD/YL (9)

RD/YL (11)

RD-12

RD/YL (10)

YL(2)

RD/YL(3)

RD/YL(16)

RD(16)

OR (1)

RD (3)

BK (7)

BU-10(2)

RD(18)

RD(19)

RD/YL (2)

GN/WH (1)

GN/WH (3)

GN/WH (4)

GN/BU (3)

GN/BU (4)

GY(1)

GY(2)

GY(3)

GY(4)

GY(5)

GY(6)

RD (5)

RD/YL (14)

RD (10)

RD/YL (1)

RD/YL (5)

RD/YL (6)

BU/YL (2)

RD/YL (7)

BK/PU (1)

BK/PU (2)

GY/BK (1)

RD (4)

RD (8)

RD/YL (8)

RD/YL (9)

RD/YL (10)

RD/YL (11)

RD/YL (12)

RD/YL (13)

RD-12

RD/YL (15)

RD-12

GY(5)

GY(6)

RD/YL (13)

BU-10(2)

RD (10)

RD/YL (16)

RD/YL (14)

RD/YL (15)

RD (16)

RD (18)

RD (19)

GY(2)

RD/YL(3)

RD(4)

GY/BK (1)

BK/PU (1)

RD/YL (1)

BU/YL (2)

RD/YL (5)

RD/YL (6)

RD/YL (7)

RD/YL (8)

RD(5)

BK (7)

RD(3)

RD/YL(9)

YL (2)

GY(1)

GN/WH(1)

RD/YL(2)

OR (1)

RD/YL (11)

RD (8)

GY (4)

GN/WH(4)

GN/BU (4)

RD/YL(12)

BK/PU (2)

GN/WH(3)

GN/BU (3)

GY (3)

RD/YL (10)

TO BOX

BK/GN/RD (4)

WH(14)

YL (4)

GN(16)

OR(10)

RD/YL(13)

BK/GN(8)

BK/WH(2)

BK (6)

BU-10(2)BU-10(1)

RD/YL(16)

TO BOX

RD/YL (16)

RD(10)

BU-10(2)BK/WH (2)

BK/YL/WH(1)

YL(4)

BU(2)

BU(5)

GN(6)

RD(15)

RD(14)

BU(10)

BU(8)

WH(7)

BU/YL(1)

BKBU(9)

YL(5)

PU(4)RD/YL (14)

BK RD(11)

GN(3)

GN(5)

BU(7)

BU(4)

PU(4)

RD(13)

WH(8)

RD(14)

RD (2)

GN/BR(1)

BK/GN(1)

BK/GN/RD(2)

BK/GN/RD(1)

BK/RD (1)

BK/GN(2)

BK/GN(1)

BK/GN(4)

GN/BR(1)

BK/GN/RD(2)

BK/GN/RD(1)

BK/GN/RD(4)

WH(8)

WH(9)

RD/YL (15)

BK/RD (1)

RD(13)

RD(17)

RD(16)

RD(7)

RD(18)

RD(16)

RD/YL(15)

RD/YL(14)

BU(4)

GN(3)

BU/YL(1)

BK (6)

WH(2)

BU(2)

RD(7)

BU/YL(4)

BU(7)

GN(5)

BU(9)

YL (5)

WH(7)

BU(8)

BU(10)

GN(6)

RD(10)

BK/GN(2)

BK/GN (4)

BK/GN (5)

RD (6)

BR (1)

BK/GN(5)

RD(6)

BR(1)

RD-8(1)RD-8(2)

RD-8(1)RD-8(3)

RD-6(4)

WH(3)

BK (8)

BK/GN/RD(8)

BK (9)

RD(12)

RD(26)

GY(5)

BK (9)

RD(12)

GY(5)

GY(6)

WH(4)

RD(12)

CONN 1

GY (6)

GY (5)

WH(4)

BK (9)

RD (26)

GY (6)

WH(4)

GY(9)

GY (9)

GY(10)

GY (6)

WH(4)

RD (26)

GY(6)

WH(4)

RD (26)

LAMP

LICENCE PLATE

116-9623

WH(4)

GY(6)

RD (26)

WH(4)

GY(6)

RD(26)

BU(11)

RD(20)

BK (10)

YL (13)

BK (1) WH

BKBK

WH-14

BK-14

GY(8)

GY(4)

GY(8)

WH(4)

RD/YL (11)

GN/BR (3)

GN/BR (4)

GN/BU (4)

GN/WH(4)

RD (7)

RD/YL (11)

GN/BR (3)

GN/BR (4)

GN/BU (4)

GN/WH (4)

GY (4)

WH (4)

RD/YL (12)

BU/YL(3)

YL(1)

OVERLOAD WARNING

DEVICE SWITCH

118-5501

RD(23)

BU (10)

YL (5)

BU (9)

RD (11)

GN (6)

BU (8)

RD (10)

WH(7)

YL (11)

RD (21)

GN (9)

YL (12)

SHIELD

BR(2)

WH(10)

YL(11)

SHIELD

RD(11)

BU(8)

YL(12)

GN(9)

GN(6)

BU(9)

YL (5)

RD(21)

RD(10)

RD(22)

BK (14)

BU(13)

PU(9)

(23)

WH(10)

BR (2)

BK (13)

RD (22)

RD(22)

TURN SIGNAL

LAMP AS.

116-9626

FLOOD

LAMP AS.

120-6775

GN/BU(1)

BK/GN(6)

GN/BU(5)

GN/BR(4)

BR (1)

BU/YL (3)

BKBU(13)

AIR

HORN SW

5W-9376

SWING

BRAKE SW

8U-6109

TRAVEL

PEDAL SW

136-9421

REVERSE

STER LIGHT

164-8366

PLATFORM

GN/BR(3)

GN/BU(2)

BK/YL/WH(2)

WH(3)

BK/GN(4)

GN/WH(2)

BU/YL (3)

GN/BU(5)

BK/GN(6)

GN/BU(1)

BR (1)

GN/BR(4)

BU(13)

BK(8)

GY(3)

GN/WH(3)

GN/BU(3)

TURN SIGNAL

LAMP AS.

116-9626

TO FRAME

CONN 17

CONN 16

DK-BU

GN/YL

LEFT FRONT

STABILIZER

LOCKOUT SOL

8U-6424

RIGHT FRONT

STABILIZER

LOCKOUT SOL

8U-6424

BK/GN(7)

BK/WH(3)

BK/PU (2)

LOWER WIPER

6C-9156

RD(6)RD/YL (10)BK/WH(7)

BK/WH (2)

BK BK

BU(1)

RD/YL(10)

RD(6)

BU(1)

FORWARD/REVERSE

TRAVEL ALARM

SW (QNTY 2)

9D-7032

BRAKE

LIGHT SW

8U-2158

LOW BRAKE

PRESS SW

5W-9972

RD(25)

TO FRAME

CONN 10

CONN 9

DK-BU

GN/YL

RIGHT REAR

STABILIZER

LOCKOUT SOL.

8U-6424

LEFT REAR

STABILIZER

LOCKOUT SOL.

8U-6424

BK (2)

BK (3)

BK (4)

BK (5)

BK(1)

BK(2)

BK(3)

BK(4)

GN/YL

DK-BU

GN/YL

RD(12)

BK/GN(8)

BU-10 (1)

TO FRAME

BKSTICK TRAVEL

LAMP AS.

8U-4742

RD/YL (12)

BU/YL (3)

YL (1)

BK (1)

RD/YL (11)

GN/BR (3)

GN/BR (4)

GN/BU (4)

GN/WH(4)

GY (4)

WH(4)

RD/YL (12)

BU/YL (3)

YL (1)

BU (13)

GN/BR(3)

GN/BU(5)

BK/YL/WH(2)

WH(3)

BK/GN(6)

GN/WH(2)

BU/YL (3)

GN/BU(1)

BK/GN(4)

GN/BU(2)

BR (1)

GN/BR(4)

BK (8)

GN/BU(3)

GN/WH(3)

GY (3)

BK/GN(7)

BK/WH(3)

BK/PU (2)

BK/WH(2)

RD/YL (10)

RD (6)

BU (1)

RD (25)

BU-10(1)

BK/GN(8)

BK (2)

BK (3)

BK (4)

BK (5)

GY(5)

GY(6)

RD(12)

RD-6(4)

BK (9)

WH(4)

BU-10(1)

BK/GN(8)

BU-10(1)

REFUELING

PUMP

5W-8633

RD-00 BK-00

BK-00

RD-6(4)

DISCONNECT

SWITCH

7N-0718

12V BATTERY

(QNTY 2)

3T-5760

RD (12)

GY (6)

GY (5)

WH(4)

BK (9)

BK/GN (8)

BU-10(1)

RD-6(4)

BK(18)

BK (18)

BK (14)

WH(7)

BK (14)

WH(7)

GN/BR (4)

GN/BU (1)

WH(3)

BK/GN (4)

GN/WH(2)

BU/YL (3)

GN/BU (2)

BR (1)

BK (8)

GN/BU (3)

GN/WH(3)

GY(3)

BK/PU (2)

BK/WH(2)

RD/YL (10)

RD(6)

BU(1)

GN/BR (3)

BK (5)

BK (4)

BK (3)

BK (2)

WH(7)

BK/GN(6)

GN/BU(5)

BK/GN(7)

BK/WH(3)

BK/YL/WH(2)

BU(13)

BK (14)

RD(25)

GN (4)

GN/BR (4)

GN/BU (1)

WH(3)

BK/GN (4)

GN/WH(2)

BU/YL (3)

GN/BU (2)

BR (1)

BK (8)

GN/BU (3)

GN/WH(3)

GY(3)

BK/PU (2)

BK/WH (2)

RD/YL(10)

RD (6)

BU (1)

GN/BR (3)

BK (2)

BK (3)

BK (4)

BK (5)

RD (8)

WH(1)

BU (7)

RD (1)

BR/BK (1)

GN (4)

BU/YL (4)

BR/WH (1)

BU (5)

GN (5)

BR/BK (2)

BR/WH (2)

GN (2)

WH (6)

WH (5)

BK/YL/WH(2)

BK/WH (3)

BK/GN (7)

GN/BU (5)

BK/GN (6)

DK-BU

BK(4)

BK(3)

BK(2)

BK(1)

PU (8)

TO FRAME

RD-4

SUPPL STER

MOTOR

118-9168

PU(3)

RD(8)

WH(15)

BK-4

TO FRAME

WASHER

UPPER

8U-2598

WASHER

LOWER

8U-2598

RD-00

RD(24)

BK (15)

SHIELD

WH(12)

BK(16)

YL (17)

BK (17)

WH(5)

BK (15)

PU(9)

SHIELD

YL (17)

BK (17)

WH(12)

BK (16)

OR(4)

BK (17)

PU(6)

BK(16)

SWING PUMP PRV

SOLENOID

143-2363

MAIN PUMP PRV

SOLENOID

143-2363

PU(9)

SHIELD

TO FRAME

GN/BR(2)

BK/GN(3)

BK/GN/RD(3)

BK/YL/WH(1)

GN/BR (2)

BK/GN (3)

BK/GN/RD (3)

BK/YL/WH (1)

IMPLEMENT

ACTIVATION

SOLENOID

151-2515

TRAVEL

ACTIVATION

SOLENOID

151-2515

SWING

BRAKE

SOLENOID

151-2515

CREEPER

SPEED

SOLENOID

151-2515

TO FRAME

PU(2)

GN/BU(1)

BR/WH (3)

BK/GN (5)

BK/WH (1)

YL (4)

BR/WH (3)

GN/BU(1)

PU(2)

PARKING

BRAKE

SOLENOID

8U-6424

TRANSMISSION

SPEED

SOLENOID

8U-6424

BK BK

LOW TRANSMISSION

CLUTCH PRESS SW

8U-9306

PU (2)

GN/BU (1)

BR/WH (3)

BK/GN (5)

BK/WH (1)

YL (4)

GN/BR (2)

BK/GN (3)

BK/GN/RD(3)

BK/YL/WH(1)

HEAVY LIFT

SOLENOID

8U-6424

RD(24)

BK (15)

HAMMER

SOLENOID

8U-6424

WH(1)

HYD OIL

FILTER

CLOG SW

116-8514

PU (8)

BU (7)

RD (1)

BR/BK (1)

BR/WH (2)

GN(2)BR/WH (2)

AIR FILTER

CLOG SW

5W-9934

RD (7)

FORWARD

HORN

153-6559

BK (1)

RD(7)

COMPRESSED

AIR HORN

5W-9400

TO FRAME

TO ENGINE

BK-00

BK-4

BK-00

BR/BK (2)

BU(5)

GN(5)

BR/WH (1)

GN(4)

BU/YL (4)

BR/WH (1)

BU(5)

GN(5)

BR/BK (2)

GN (2)

RD-4(4)

RD-6(2)

RD-4(1)

RD-6 (3)

RD-4(1)

COOLANT TEMP

SWITCH

119-3399

RD-6 (2)

START

GN(15)

RD(25)

RD-4

BK-10

TO BOX BK-6 BK-6

TO FRAME

BK-6

TO CAB TO FRAME

YL (15)

YL (16)

YL (13)

RD-12

GN (4)

OR(8)

YL (16)

YL(13)

YL(15)

YL(16)

YL(15)

YL(13)

RD-12BK-12

BR-12

L10

L11

L12

L11

L10

L15

L14

L15

L26

L17

L16

L13

L24

L46

L45

L13

L16

L17

L43

L44

L40

L46

L18

L19

L20

L21

L22

L19

L18

L37

L38

L39

L41

L40

L42

L36

L33

L24

L23

L22

L19

L23

L28

L29

L30

L31

L32

L26

L27

L18

L82

L20

L21

L31

L30

L29

L28

L27

L34

L36

L37

L65

L66

L67

L65

L57

L55

L45

L86

L41

L40

L47

L53

L54

L57

L58

L59

L60

L61

L48

L49

L62

L63

L64

L63

L62

L61

L54

L60L59

L50

L49

L48

L46

L44

L50

L38

L39

L51

L50

L87

L43

L38

L39

L43

L47

L32

L51

L32

L34

L30

L51

L36

L48

L29

L30

L36

L51

L46

L50

L49

L44

L52

L46

L34

L28

L27

L34

L28

L59

L58

L53

L68

L55

L67

L55

L67

L60

L54

L70

L61

L70

L64

L63

L62

L70

L68

L63

L68

L71

L72

L73

L74

L73

L72

L64

L75

AIR SUSPENDED

DRIVER SEAT

TO UNDCRG

TO FRAME

BLADE REAR

SOLENOID

8U-6424

BLADE FRONT

SOLENOID

8U-6424

PU (3)

PU(3)

WH(6)

WH(5)

BK/YL/WH(2)

BK/WH(3)

BK/GN(7)

GN/BU(5)

BK/GN(6)

GN/BU(5)

WH(6)

WH(5)

BK/YL/WH(2)

BK/GN(7)

BK/WH(3)

OR(2)

HEATER FAN

122-2372

RESISTOR

122-2373

BK/YL/WH(1)

WH(14)

GN(13)

L77

L78

BRAKE/

TRAVEL

CUTOFF

117-4861

GN(13)

L78

L48

BU(13)

BK /RD(2)

L A

CONN 5

CONN 6

CONN 11

CONN 12

CONN 7

CONN 8

SWIVEL

121-2974

CONN 18

CONN 15

CONN 14

CONN 13

L46

L44

L50

L48

YL(9)

GN(10)

SUPPL STER

AUX HYD

(CW ROTATION)

SOLENOID

8U-9137

AUX HYD

(CCW ROTATION)

SOLENOID

8U-9137

FUEL LEVEL

SENDER

112-7178

PU(8)

POWER

MODE

117-4861

PILOT PRESS

ENABLE

117-4861

HEAVY

LIFT SW

5W-9372

LEFT REAR

STABILIZER

LOCKOUT SW

5W-9347

RIGHT REAR

STABILIZER

LOCKOUT SW

5W-9347

LEFT FRONT

STABILIZER

LOCKOUT SW

5W-9347

RIGHT FRONT

STABILIZER

LOCKOUT SW

5W-9347

AUX HYD

(CW ROTATION)

SWITCH

113-2531

AUX HYD

(CCW ROTATION)

SWITCH

113-2531

OR (3)

OR(3)

BR/RD

BK-14

BU/YL(5)

BK/WH(4)

GN/WH(1)

BK/GN(9)

GN/BR(5)

YL(11)

YL(12)

WH(2)

BU(4)

RD/YL(18)

BU/YL(5)

BK/GN(11)

GN(3)

YL(10)

BK/WH(4)

BR/WH(1)

BU(2)

RD(1)

RD(4)

PU(3)

BR/BK(1)

BR/WH(2)

RD/YL(9)

BU(1)

YL(9)

OR(3)

BR/BK(2)

BR/WH(3)

SCHIELD

YL(11)

YL(12)

YL(11)

YL(12)

GN/BR(5)

RD/YL(18)

BK/GN(9)

YL(10)

BU/YL(5)

BK/WH(4)

BK/GN(11)

GN/WH(1)

WH(2)

BU(4)

GN(3)

BR/WH(1)

BU(2)

RD(1)

GN/BR(1)

BK(7)

WH(3)

BK/GN(1)

BK(8)

RD(1)

BU(2)

BR/WH(1)

GN(3)

RD/YL(2)

BU(4)

WH(2)

GN/WH(1)

OR(3)

BU(1)

RD/YL(9)

BR/WH(2)

BR/BK(1)

PU(3)

RD(4)

YL(9)

TO FRAME

BR/BK(2)

BR/WH(3)

YL(11)

YL(12)

PU(3)

BK /RD(2)

L80

L79

L80

L81

L55

L69

L35

PU(13)

DIODE

8U-8045

RD(27)

BACKUP SW

8U-6353

PU(6)

OR(4)

GN(7)

WH(12)

BU(15)

GN(7)

WH(12)

BU(15)

YL(17)

BU(15)

GN(7)

BU(15)

PU(6)

WH(12)

OR(4)

YL(17)

BU(15)

GN(7)

OR(4)

PU(6)

YL(17)

WH(12)

BK(17)

BK (16)

L82

L83

L84

L83

L85

RD(28)

RD(29)

BU(15)

GN(7)

BACKUP RESISTOR

MAIN PUMP PRV

124-0329

BACKUP RESISTOR

SWING PUMP PRV

124-0329

RD-8(3)

RD-10(2)

KL.30

BK(9)

WH(4)

L33

RD-10(5)

RD-8(2)

RD-10(4)

RD-10(3)

RD-10(8)

RD-10(7)

KL.15

RD-00

OR(5)

OR(6)

F F

PU(12)

TO CAB

L86

BK/GN(3)

GN/BR(2)

PU(12)

BK/GN(14)

GN/BR(6)

PU(12)

L87

GN/BR(6)

BK/GN(14)

PU(12)

OR(5)

AEC AUX-HYD

BRAKE

AEC

AUX-HYD

117-4861

L86

PU(12)

BK-10

CONN 4

BK-10 SHIELD

SCHIELD

RD(19)

GN(6)

RD(19)

GLOW PLUG

(QNTY 2)

035-8059

GLOW PLUG SYSTEM

RESISTOR

7W-1251

GLOW PLUG SYSTEM

RESISTOR

7W-1251

RD-10(9)

RD-12(1)RD-12(2)

RD-12(3)

RD-10(9)

OR(6)

GN(10)

OR(6)

OR(7)

L47

RD-10(10)

OR(6)

RD-10(9)

OR(6)

BU/YL(4)

RD(18)

L52

START/STOP

RESISTOR

126-9078

RD-10(9)

BK-10

PU(2)

RD(30)

L12

RD(27)

GN (4)

CONN 2

RD(31)

GN (4)

TO FRAME

BK FAN

CLUTCH

L56

RD(31)

L56

RD(31)

L56

RD(31)

GN(2)

L52

WH(15)

SUPPL STER

RELAY

117-4861

RD(8)

WH(15)

PU(3)

GN(14)

WH(15)

RD(32)

RD(8)

AEC BOOM-CYL

AEC STICK-CYL

AEC SWING

PU(11)

RD(27)

PU(12)

PU (9)

PU(5)

DIODE

8U-8045

RD(36)

PU(14)

PU(15)

DIODE

8U-8045

RD(37)

PU(16)

PU(17)

DIODE

8U-8045

HHJJ

DIODE

140-6617

BK-12

HARNESS AS

DIODE

142-9472

TRANS SPEED

SWITCH

5W-9372

TRAVEL

CUTOFF

117-4861

WH (2)

WH (9)

OR(10)

TRAVEL

ALARM

3T-1815

910

2.5A

ANTENNA

SPEAKER

GROUND

+BATT.

SPEAKER

MOTOR

31B

53A

MOTOR

POS NEG

+BATTERY

ALARM

PRESS.SW

SHUTDN.SW

GROUND

TRAVEL

ALARM

RELAY

122-2371

POS NEG

MOTOR

10 9

1 5

10 9

1 5

MOTOR

OUT (LAMP)

+ BATTERY

GROUND

49a

FLASHER

8U-9152

56B

56A

HEAD

LAMP AS.

2U-4800

POSITION

LAMP

5W-2033

HAZARD SW

5W-9351

RD/YL(2)

BK (7)

WH(3)

BK(8)

GN/BR(1)

BK/GN(9)

BK/GN(1)

GN/BR(5)

HEATER FAN SW

111-3805

910

87a

PLUG

120-5967

24V

12V

GND

5 7

STARTING/

PILOT PRESS

ENABLE SWITCH

117-3187

1 5

+ -

HOUR METER

120-5966

TURN LAMP GP

116-9624

TURN LAMP

5W-2040

BASIC LAMP GP

116-9625

STOP LAMP

9X-4493

TAIL LAMP

5W-2040

TURN LAMP GP

116-9624

TURN LAMP

5W-2040

BASIC LAMP GP

116-9625

STOP LAMP

9X-4493

TAIL LAMP

5W-2040

PLUG

120-5967

56B

56A

HEAD

LAMP AS.

2U-4800

POSITION

LAMP

5W-2033

123-6472

24V

GND

TXD

RXD

SCHIELD

BB3

31B

53A

TERMINAL

5W-3624

TRAVEL LOCK

MAGNET

116-1146

MOTOR

CONN 3

RELAY

3E-0075

RELAY

3E-0075

HYD OIL

LOW-TEMP

SWITCH

119-3400

87a

HORN/TURN

HIGH BEAM SW

111-1975

GN/BR

WH/BK

BK/WH

BK/GN

BK/WH/GN

56B

71A

56A

HYD OIL

HIGH TEMP

SW & SENDER

116-4710

DIODE

TEMP

123-3998

A/C

RELAY

123-6527

87b

87a

DIODE

120-5969

DIODE

120-5969

AEC IMPLEMENT

TRAVEL SWITCH

117-0651

BRAKE LIGHT

CUTOFF SW

124-8427

POWER

MODE SW

5W-9372

50A

KEY SWITCH

117-9508

ENGINE SPEED

SENSOR

116-6680

ENGINE

START/STOP

SOLENOID

7W-6249

COOLANT TEMP

SENDER

119-3401

COOLANT TEMP

COLD START SW

126-5983

ENGINE

COLD START

SOLENOID

MOTOR

MTR BAT

G S

STARTER

109-2361

D+

D-

ALTERNATOR

109-2362

1 5

A/C

RELAY

123-6527

87b

GN-14

A/C CLUTCH

SOLENOID

3E-1906

PRIMARY

STEERING

FLOW SW

3E-6429

DUMP VALVE

R TERM (W)

SHUT D SOL

MAGN SWITCH

EMS

UNUSED

SUPPLEMENTAL

STEERING CONTROL

132-6640

STEER SW

GOV.SWITCH

KEY SWITCH

GROUND

BATTERY + RD

87a

LOWER WINDSHIELD

137-7245

BK-14BK-14

MAIN FUSE

124-0016

60A

FUSE

ALTERNATOR

123-8838

70A

ENGINE OIL

PRESS SW

7W-1238

CONTROL-ENGINE 143-9581

SOLENOID (DRE2K)

POS INDICATOR OUT

POS INDICATOR IN

POS INDICATOR GND

NOMINAL VALUE 1

PWM INPUT

SIGNAL GROUND

NOMINAL VALUE GND 2

NOMINAL VALUE 2

ACTUAL VALUE OUTPUT

+ ELECTRONIC

OUTPUT STAGE

SWITCHING INPUT

GND (L0)

GND

TURN SIGNAL

POWER MODE III +

POWER MODE III -

PARKING BRAKE

HYD OIL HIGH TEMP

+ 24 VOLT

POWER MODE II

TRANS SPEED II

ENG COOL HIGH TEMP

POWER MODE I

TRANS SPEED I

GND

ENGINE OIL PRESS

ALTERNATOR

NC (+ 24 VOLT)

HYD OIL LOW TEMP

SUPPL STEERING

HYD FILTER

AIR FILTER

+ 24 VOLT

BRAKE LOW PRESS

OVERLOAD

HYD OIL TEMP

COOL TEMP

FUEL LEVEL

HIGH BEAM

ABC

MONITOR

PANEL

148-7927

ENGINE

SPEED DIAL

141-6258

+ V

SIGNAL

GROUND

REVERSE STEER

PROX. SW

151-1953

MAIN-POWER

157-0836

AIR HORN

5W-5883

A/C TEMP

REGULATOR

3E-5464

TXD

RXD

GND (BB3)

MODE-III LAMP -

GOVERNOR CONTR-SHIELD

MODE TEMP.

GOVERNOR CONTR-KL.3

MAGNET TRAVEL SPEED +

MODE-III LAMP +

SW-TRAVEL SPEED CONTR

BRAKE LIGHT

MODE II

MODE I

GOVERNOR CONTR-KL.1

GOVERNOR CONTR-KL.2

SWITCH HLC

+ 24 VOLT

NOMINAL VALUE GND 2

NOMINAL VALUE 2

ACTUAL VALUE OUTPUT

MAGNET TRAVEL SPEED -

SW-TRAVEL PEDAL

GROUND

SW-PRESS AEC

SOLENOID HLC +

SOLENOID HLC -

ENGINE SPEED SENSOR

SOL SWING CONTROL +

SOL SWING CONTROL -

SOLENOID VALVE-LS +

SOLENOID VALVE-LS -

CONTROL- M315=147-8478

ENG/PUMP M312=147-8477

GOV ACTR 152-0197

SOLENOID (DRE2K)

POS IND OUT

POS IND IN

POS IND GND

WH(13)

PU(10)

SHIELD

GLOW PLUG SYSTEM

157-0836

5 7

7,5A

FUSE BLOCK 148-0078

A BLACK

15A

7,5A

15A

7,5A

25A

7,5A

15A

FUSE BLOCK 148-0079

B YELLOW

7,5A

15A

7,5A

15A

FUSE BLOCK 148-0080

C GREEN

7,5A

15A

7,5A

20A

7,5A

FUSE BLOCK 1480081

D RED

SWITCH

163-2084

SWITCH

163-2084

SWITCH

163-2084

ARC

SUPPRESSOR

106-8704

A/C PRESS

SWITCH

114-5333

MOTOR

BR-12

BK-12

AIR

CONDITIONER

FAN

145-7724

DIODE

STOP LAMP

123-5635

87a

UNLESS OTHERWISE SPECIFIED ALL WIRE IS 16 GAUGE.

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

E85429

TO MACHINE STRUCTURE

15 14 13 12 11 10 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.

MONITOR CIRCUIT.

PANEL LAMP CIRCUIT.

WASHER/WIPER CIRCUIT.

HEATER AND AIR CONDITIONER CIRCUIT.

GROUND CIRCUIT.

TURN SIGNAL CIRCUIT.

WIRES THAT HAVE BATTERY VOLTAGE

WHEN THE KEY SWITCH IS ON AND THE

LEFT HAND HYDRAULIC CONSOLE IS

LATCHED IN THE DOWN POSITION.

ENGINE PUMP CONTROL CIRCUIT.

START AID CIRCUIT.

ALL DASHED LINES ARE ATTACHMENTS.