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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
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