Lull 944E-42 Service Manual - Manual (Page 567)

9.57 Model 644E-42/944E-42 Rev. 6/04
Electrical System
9.8.14 Optional 644E-42 Cold Start Electrical Schematic (SN 0160003690 & After)
Schematic is drawn with the ignition switch in the OFF position.
125
Amp
Fuse
125
Amp
Fuse
+
-
BATTERY
2
1 2
3
4
ENGINE GRID
HEATER RELAY 2
280
GH2B
285
275
GH1A
GH1A
GH2A
GHG1
GHG1
GH1
GHG2
GH1
GH2
PH1A
GH2
GH2A
VP4
DIODE PACK
F
E
B
A
PH1A
VP5
DIODE PACK
A
B
C
F
GH2B
GH1B
GHG2
C
B
A
C
B
A
C
B
A
TSG
TS1
TEMPERATURE
SENDER
A
B
270
FSG2
FSG1 FSG1
FSG2
TS1
GHG3 GHG3
GH1C
GH1C
GH2C
HMG
FR2C
ST4D
HMG
260
ST4C
ST4B
ST4D
ST4C
265
FR2B
FR2A
FR2C
FR2B
EG9
EG9
ENGINE GRID
HEATER RELAY 1
1 2
3
4
12V BUSS BAR
ENGINE
BLOCK STARTER
GND (-)
+
C
A
B A
B
C BA1
POWER
MALE
CONNECTOR
IG1 BA4
BA3
F1 40
OPEN CAB
VEHICLE MAIN
F2 15
IGNITION
CONTROL
BA1A
B
10
PB2A
2
PB2
IG1
PB1
To
Transmission
Fuse (F3) To
Park Brake
Switch
BA3
ACC IGN
B+
OFF
ACC
IGN ST
IGNITION
SWITCH
POWER
FEMALE
CONNECTOR
IGNITION
RELAY
87A 87
30
86
85
To
Sensor
Male
Connector
GH2C
ST4F
FR2 To Splice 330
To Splice 95
ENGINE
PREHEAT
FEMALE
CONNECTOR
ENGINE
PREHEAT
MALE
CONNECTOR
PH1
ENGINE
BLOCK
ENGINE GRID
HEATER
1
2
COLD START OPTION
FEMALE CONNECTOR
FUEL
SHUTOFF
MALE
CONNECTOR
FUEL
SHUTOFF
SOLENOID
FEMALE
CONNECTOR
F
E
D
C
B
A
B
A
C2
TEMPERATURE SENDER
BATTERY VOLTAGE (-)
C1
WAIT TO START LAMP
SOLENOID 1
SOLENOID 2
CRANK CASE
BATTERY VOLTAGE (+)
HEATER
CONTROL
MODULE
E
D
C
B
A
B
A
FSG
+
-
BATTERY
1
To Splice 325
MU6530
Refer to
pages
9.48,
9.49,
9.50 or
9.51.
Refer to
page 9.53.