N2 - Display UnitP/N 1226581

Ignition Switch P/N 1-30005179

Term 15 - IgnitionTerm 19 - Pre HeatTerm 50 - Starter

Cock Pit fusesF11 - 10 amp - Machine controller supplyF12 - 25amp - Machine controller outputsF13 - 10 amp - Display unit, shutdown barF14 - 25 amp - Hydraulic cooler

N2 -Display UnitP3 - Hour MeterH1 - Battery Charge indicatorH2 - Pre-heating lampH3 - Oil Pressure indicatorH4 - Water Temp indicatorH5 - Shutdown bar warninglampH6 - Error warning lamp

Engine Compartment fusesF21 - 40 amp - Stop SoleniodF22 - 10 amp - Fuel Pump, Alt Battery +F23 - 40 amp - High Speed SolenoidF24 - 40 amp - Pre HeatF25 - 40 amp - Single Coil (tier 4 option )

Open Reverse barcircuit is indicatedon the DisplayPanel by turningon H5 Lamp.

Hyd

raul

icC

oole

rTem

pS

witc

h

Mot

orho

ldin

gco

il

Hyd

raul

icC

oole

rMot

orFuel

Pum

p

Pow

erS

uppl

y-L

ogic

Box

Pow

erS

uppl

y-O

utpu

ts

Con

trolB

usD

+

Con

trolB

usD

-

Vol

tage

Sup

ply

+(P

OS

)

Vol

tage

Sup

ply

-(N

EG

)

Charge/Pairing ConnectionFront IR SensorP/N 1226285

Rear IR SensorP/N 1226285

Vol

tage

Sup

ply

-(N

EG

)

Vol

tage

Sup

ply

-(N

EG

)

Vol

tage

Sup

ply

+(P

OS

)

Vol

tage

Sup

ply

+(P

OS

)

Wat

erTe

mpe

ratu

re

Eng

ine

Oil

Pre

ssur

e

S24 - Reverse SafetySensor/Loop

Wat

erTe

mpe

ratu

reP

/N12

1250

4490

1

Eng

ine

Oil

Pre

ssur

eP

/N11

4250

3945

0

Low

Am

plitu

de

Hig

hA

mpl

itude

Ste

erin

gR

ight

Ste

erin

gLe

ft

Driv

eFo

rwar

d

Driv

eR

ever

se

Bra

keV

alve E

rror

G1 - AlternatorP/N 129423-77200Term 30 : 14.5V outputTerm D+ : Ground out for Display, K2 relay,controller timer.D+ must have 0V when the Ign is on.D+ must have 12V when the engine is runningTerm 15 : Ignition circuit power from K1 relay.

M1 - Starter MotorP/N 1-954079Amps / 250 Peak / 150 Continuous

High Speed SolenoidP/N 1226545Amps / 8.9 Peak / .5 Continuous

N1 - Machine ControllerP/N 1226284

Starter

W10

5-I

gniti

onR

elay

Out

putP

wrt

oK

1R

elay

PreheatIgnition

Sta

rter

R1 - Glow PlugsGlow Plugs are not on a timerAmp Draw 10Amps

RX1575 Trench RollerInfrared Safety Zone : Spec's from manual,actual may vary.Max range w/ cable 11ft. ~ Max w/ IR60ftMin proximity range 8ft

Rev

erse

Bar

Saf

ety

Circ

uit

H3 - Oil Pressure indicatorH4 - Water Temp indicator

S25 - Hydro OilTemp Switchcloses at 122degrees F

S21 - OilPressure switchmust be closedwhen the engineis stopped.Closed whenstarting & openwhen running.4s Delay

S22 - Water TempSwitch must beOPEN in Normaltemps.4s Delay

X5 is aconnector forthe frontsensor/Extcable that islocated on theleft side of theengine baseharness area.P/N 1292241

Engine Signal

When Ign ON, pin 7 must have0V to batt neg and when enginerunning it must have 12VDC

Y2 - useproperpolarity.Must beadjustedproperlyP/N1226545

Glo

wP

lug

Rel

ay

Hig

hS

peed

Sol

enoi

dR

elay

Rev

erse

Bar

Saf

ety

Circ

uit

Notes*All BROWN wires are always a GROUND circuit.* Y2 -The High Speed solenoid must be adjusted properly. Set 1.5mm gap between the adj screw and the stop.* Y9 - Remove this connector for brake test and drive circuit deadhead relief pressure.

Relay ID and DescriptionK1 - Main Ignition Relay (P/N 1227066)K2 - Starter Relay (P/N 1-493837)K3 - Timer Relay (1s.) (P/N 1-952515)YM:129211-77920K4 - Pull-in Stop Solenoid (P/N 1-952514) NGK:G71SUK5 - High Speed Solenoid Relay (P/N 1227066)K6 - Glow Plug Relay (P/N 1227066)K7 - Hydro Cooler Fan Relay (P/N 1227066)K11 - Solenoid Driver Relay (Tier 4F only)K1/K7 Spec - 12VDC-40A/15A

Solenoid Valve DescriptionsApprox coil resistance is 6 ohms for Y3,4,5,6,7,8,9Y1 - Fuel Shutoff Solenoid Y6 - Steering RightY2 - High Speed Solenoid Y7 - High AmplitudeY3 - Drive Forward Y8 - Low AmplitudeY4 - Drive Reverse Y9 - Brake ValveY5 - Steering Left Y11 - 2nd Holding Solenoid

(Tier 4F only)

Gro

und

Gro

und

All INPUTS run on the top of Machine Controller in diagram expect for voltage to the IR receiving eyes

All OUTPUTS run on the bottom of Machine Controller in diagram expect for GND input on Cannon plug terminal 3 & 4.

Battery

Battery

Circ

uitN

egat

ive

Cable P/N 1242589

Y2 - High SpeedSolenoid

Adjustment

Leave 1.5mm gap.

Cannon Plug Connector toN1 - Machine Controller

Hyd Test Pressures @ High SpeedDrive Pressure Relief - 4000psiCharge Pressure - 300psiVibration Pressure - 3000/1500psiSteering Pressure - 1000psi

* Stauff-Test 20 Adapter (SMS-20/N1/4)

K4 - Relay Coil85-86= 37ohmsDraws .3a

K3 Timer

K4

Wire ColorsRT = RedSW = BlackRT/WS = Red/WhiteGB = YellowWS = White

Y5 - Y9 Hydraulic Valve Solenoids

Coil Resistance 6 ohmsCurrent Draw - 2.5 amp

K3 TimerMeter set to 600K ohmRed lead = RTBlk lead = SW310K Ohms

Reverse leads = 0

Check for VDC atRT-GB.Don t use Auto-range

Input voltage from machine controllerTerm 3 & 4 = Battery Voltage

Shaded AreaTier 4F Option

Starter Motor Alternator

Input voltage from machine controllerTerm 3 & 4 = Battery Voltage

Drive Speed Voltage to CoilsHigh Speed - 4.8 DCV to CoilLow Speed - 3.6 DCV to Coil

Note: Voltage check must be done withconnector plugged in. Unit will read strayvoltage if test is not done correctly.Make this test while engine running, backprobe connectors.

Filter NumbersEngine Oil Filter 11930535151 Fuel Filter 11981055650Fuel/Water Sep 17108155910 Fuel Pump 11922552102T4i Air Filter 1224448 500 Hr Service Kit 1228783T4F Air Filter Outer 1300308T4F Air Filter Inner 1300309

H1

H2

H3

H4 H5

H6

Ignition SwitchTerminals

IgnitionSwitch

Terminals,Wires &Position

Logic

IR Transmitter PartsStart/Stop Switch - P/N 52077Vibration Switch - P/N 52010Rubber Cap for Switches - P/N 68305Joystick - P/N 68507Battery - P/N 1266872Transmitter Board - P/N ???

N2 - Display Unit

N2 - DisplayUnit

N2 - Display Unit

23.0 Ohms.8 Ohms

K2 - Start RelayP/N 1-49388720 Ohm Coil

K7 - Hyd FanRelayP/N 122706682 Ohm Coil

Y3 - Y4 Drive Solenoids

Coil Resistance 6 Ohms

K1 - Main IGN RelayP/N 122706682 Ohm Coil

K5 - High SpeedSolenoid RelayP/N 1227066

82 Ohm Coil

K6 - GlowPlug RelayP/N 1227066

82 Ohm Coil

Y1 - Fuel Shutoff SolenoidP/N 11923377932

MQ Service Edits RevARX1575 Electric Complete Engine Wiring Harness

P/N 1240161

N3 - Infrared TransmitterP/N 1226283

Tier 4i Engine Spec # 3TVN76-PAAMTier 4F Engine Model # 3TNV80F-SPAMM

Whi

te

Yel

low

Bro

wn

Gre

en