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ELECTRICAL DIAGRAMS
G-19
CLASSIC® 300D & 300G
SCHEMATIC - COMPLETE MACHINE - (CODES 11413, 11414) (L13097)
OIL PRESSURE SWITCH / SENDER
TEMPERATURE SWITCH / SENDER
W
G
TEMPERATURE
GAUGE
S
I
G
OILPRESSURE
GAUGE
S
I
G
AMMETER
+
-
ENGINE CONTROL UNIT
(
ECU)
1
ENGINE
PROTECTION
LIGHT
ALTERNATOR
WK
G
NEGATIVE OUTPUT
TERMINAL
POSITIVE OUTPUT
TERMINAL
4
3
2
1
GENERATOR LEAD BLOCK
SHOWN AS VIEWED WITH
ENGINE IN THIS DIRECTION
-
-
+
+
INTERPOLE
COILS
SHUNT
FIELD
SERIES FIELD
TYPICAL CURRENT
DRAW IS 40 AMPS
+
HOUR METER
12 11 10
9
8
7
65
4
3
2
1
P10
J5
SWITCH CLOSES
AT 6+/-2 PSI
SENDER OPERATION:
0PSI->10+/-5OHMS
40PSI -> 105+/-5 OHMS
80 PSI -> 187+/-5 OHMS
FJW-5AP
COIL PAIR:
25.2 - 26.7
OHMS EACH
FLYBACK DIODE PREVENTS
VOLTAGE SPIKES INSHUNT FIELD
FROM DAMAGING LOCAL/REMOTE
TOGGLE SWITCHWHENSWITCHED
SHOWN IN LOCAL
POSITION
3 TURNS
2 TURNS
SENSOR GROUNDS LEAD
ON SENSE OFWELD OR
AUXILIARY LOAD
Y
RHEOSTAT
W
G
X
REMOTE
RECEPTACLE
LOCAL/ REMOTE
SWITCH
SWITCH CLOSES
AT230
v+/-6vF
SENDEROPERATION:
140
vF -> 134+/-13.5 OHMS
194
vF -> 51.2+/-4.3 OHMS
212
vF -> 38.5+/-3 OHMS
P9
J8
46531 2
64+/-6.4 OHMS MAX
WITHAC AUXILIARY POWER,
ROUTING DIRECTIONS OF THESE
LEADS DOES NOT MATTER
BRUSHPOSITION SHOWN AS
VIEWED FROM CONTROL PANEL
+
_
COLOR:RED
12 VOLT
NORMALLY OFF
SHOWN IN"OFF"
POSITION
53
51C
50
50A
51
51A
212D
43
200
54
44
212A
212B
61
844A
841
844
N
U
67A
602B
602
SELECTOR SWITCH
90-MIN
130-80
190-120
240-160
220-MAX
WELDING
GENERATOR
CCW
-40 TO 40 AMPS
AMMETER SHOWS FULL
DISCHARGE WHILE PRESSING
GLOW PLUG SWITCH
40 AMP / 12 VOLT
IG
B
L
GLOW PLUGS
12.6 VOLTS MIN
AT REST
14-14.5 VOLTS
WHILE RUNNING
BACK, BOTTOM
OFMACHINE
JUMPER PLUGIS FOR CONNECTION
TO WIRE FEED MODULE
LOCATEDBEHINDUPPERPORTIONOF CONTROLPANEL
LOCATEDBEHINDUPPERLEFT
PORTIONOF CONTROLPANEL
TYPICAL OCV(WARM MACHINE):
94-99.0 VOLTS AT MAX RHEOSTAT
44-54.5 VOLTS AT MIN RHEOSTAT
DRIVER
CIRCUITS
JUMPERPLUGISWIRE-TIEDUP
BEHINDLOCAL/ REMOTESWITCH ON
RIGHTS IDEO FM AC HINE(A SV IEWED
FROMCONTROL PANEL)
SENDERIS APPROX.
500 OHMS AT 70
vF
1
2
3
WATER
TEMP.
SENSOR
ENGINE
SPEED
SENSOR
31
60F
19
58
6
IGNITION
SWITCH
212C
12
START
BUTTON
7
52A
52B
55
62
STARTER
RELAY
RELAY CONTACTS FOR 52 AND 52A ARE NORMALLY
OPEN. THE STARTER MOTOR CAN ONLY BE ENGAGED
WHEN THE IGNITION SWITCHIS "ON" AND THE ECU
SENSES LESS THAN 700 RPM. IF THE ENGINE IS SHUT
DOWN DUE TO A FAULT
(EVEN
IF T
H
AT
CO
ND
IT
IO
N
DO
ES
NOT
RES
ULT
IN A
FL
ASH
CO
DE,SUCH AS RUNNI
NG
OUT
OF
F
UE
L)
, THEIGNITIONSWITCHWILL NEED TOBE
TURNED OFF THEN BACK ON TO RESTART THE ENGINE.
4
87
86
88
11
2
3
10,000 +/- 1,000 OHMS MAX
TURN POT COUNTERCLOCKWISE TO
REDUCE RESISTANCE AND SUBSEQUENTLY
REDUCE RPM BY UP TO 150RPM
RATED VOLTAGE: 12V
RATED CURRENT: 22mA MAX
60
SENSOR OPERATION:
-4
vF -> 18.80 kOHMS
104
vF -> 1.14 kOHMS
212
vF -> .16 kOHMS
RATED VOLTAGE: 12V
RATED CURRENT: 4.5A(MAX.)-TERMINAL #15
LEAKAGE CURRENT 10micro A (MAX.)-TERMINAL #16
57 34
RATED VOLTAGE: 12V
RATED CURRENT: 2A
COIL RESISTENCE:
2.8 +/- .28OHMS AT 20
vC
ENERGIZED FOR RUN
DE-ENERGIZED FOR STOP
ACTUATOR CONTROLS RPM
MECHANICAL STOP WILL SHUT
DOWN THE ENGINE AT 115%
OFRATED SPEED.
27
28
841A
9
212E
26
64
16
15
51B
70A
70B
CONNECT TO
GROUND FOR
800RPM
CONNECT TO
GROUND FOR
1600RPM, LEAVE
UNCONNECTED
FOR 1800RPM
30
32
61
0A
+
-
+
-
21
5
81
0
82
0
SLIP RINGS
21
4
AC
AC
48
GND-
T
11C
21
EXCITER STATOR
(ALTERNATOR)
11B
POSITIVESLIP RING
IS NEAREST TO IRON
EXCITER REVOLVING
FIELD(ROTOR)
400E
400D
15A
610
610
600B
600A
42
600
41
602A
67B
60E
INTERPOLE
COILS
ACTUATOR
56
18
69 13
60A
94 20
93 17
CCW
RPM CONTROL POTENTIOMETER
WIRE -T IEDTOHA RN ES S
BEHINDCONTROLPANEL
FUSE
BOTHOPEN LEADSARE WIRE-TIEDINSIDETHEHARNESSBEHINDCONTROL PANEL
SHOWN IN "AUTO
IDLE" POSITION
IDLER SWITCH
GND-B
841B
WINDING SPEC: ALT-241-3A
40.5 - 42.5 OHMS AT 25C
EXCITER CIRCUIT
LEAD 21A TO 21B
WINDING SPEC: ALT-214-2B
.488 OHMS MAX AT 25C
115
V
OLT
CIRCU
IT
L
EAD
8
10
TO
8
20
WINDI
NG
SPEC:A
LT-214
-2
C
.2
30
O
HM
S
M
AX
AT
2
5C
115
V
OLT
CIRCU
IT
L
EAD
8
20
TO
8
30
WINDI
NG
SPEC:A
LT-214
-2
D
.4
24
O
HM
S
M
AX
AT
2
5C
LIGHTCODE FAILUREDETECTED POSSIBLECAUSE-CORRECTIVEMEASURE
LONG 1, SHORT 1 RPMIS OVER 115% OF RATED RPM(2070 RPM) ACTUATORIS STUCK -REMOVE ACTUATOR AND VERIFY PLUNGER PULLS IN WHENENERGIZED
LOW OIL - CHECK OIL LEVEL ON DIPSTICK
FAULTY OIL PRESSURE SWITCH -CHECKTHAT "WK" STUD IS OPEN WHEN ENGINE IS RUNNING
LEAD TO OIL PRESSURE SWITCH "WK" STUD MAYBE GROUNDED -CHECK
BROKEN OR LOOSE BELT - INSPECT
LEADTO "L"TERMINALON ALTERNATOR MAY BE SHORTEDTO GROUND- CHECK
FAULTY ALT
ERNATOR - CHECK
AMOUNT OR QUALITY OF COOLANT INCORRECT - CHECK
FAULTYWATER TEMPERATURESWITCH - CHECKTHAT"WK" STUD IS OPEN WHEN ENGINE ISNOTRUNNING
LEAD TO WATER TEMPERATURESWITCH MAYBEGROUNDED - CHECK
LONG 1, SHORT 5
FAULTY RPM SENSOR -CHECKFOR GOODCONNECTION
FAULTYECU - CHECKFOR 12 VOLTS ON SUPPLY LEAD TO RPMSENSOR FROM ECU
FAULTYACTUATOR - CHECK FOR PROPER COIL RESISTANCE
LEADS TO ACTUATORMAY BE OPEN OR GROUNDED - CHECK
LONG 2,SHORT3
FAULTYWATER TEMPERATURESENSO
R- CHECK FOR PROPERRESISTANCE
LEAD TO WATER TEMPERATURESENSOR MAY BE OPEN -CHECK FORCONTINUITY
FAULTYWATER TEMPERATURESENSOR- CHECKFORPROPERRESISTANCE
LEAD TO WATER TEMPERATURESENSOR MAY BE GROUNDED -CHECK
LEADTO "L"TERMINALON ALTERNATOR MAY BE OPEN -CHECK FOR CONTINUITY
BROKEN OR LOOSE BELT - INSPECT
FAULTYALTERNATOR - CHECK
INCORRECT BATTERY -INSPECT
FAULTYALTERNATOR - CHECK
LONG 2, SHORT 8
LESSTHAN 4 VOLTSTO RPMSENSOR AND/OR
ACTUATORSENSED BY ECU FAULTY
ECU - CHECK FOR 12 VOLTS ON LEADS TO RPMSENSOR AND ACTUATORFROM ECU
NOT ENABLEDFOR LINCOLN PRODUCTS
NOT ENABLEDFOR LINCOLN PRODUCTS
0 RPMISDETECTED AND 12V IS DETECTED
FROM "L" TERMINAL ON ALTERNATOR
LONG 2, SHORT 1
LONG 1, SHORT 4
HIGH WATER TEMPERATUREDETECTED FOR 1
SECOND
LONG 1, SHORT 2 LOW OILPRESSURE DETECTED FOR1SECOND
LONG 1, SHORT 3
"L" TERMINAL IS GROUNDEDON ALTERNATOR
FOR 1 SECOND
LONG 2, SHORT 7 OVER 18 VOLTS DETECTED FROM ALTERNATOR
CURRENT TOACTUATOR IS OUT OF LIMITLONG2,SHORT 2
LONG 2, SHORT 6
0 VOLTS DETECTEDFROM "L"TERMINAL ON
ALTERNATORFOR1 SECOND
LONG 2, SHORT 5 150C WATERTEMPERATUREDETECTED
-50C WATER TEMPERATURE DETECTEDLONG2, SHORT4
12 VOLT SUPPLY
THE ECU WILL INDICATE FAULT CONDITIONS BY FLASHING THE ENGINE
PROTECTION LIGHT IN A CODED SEQUENCE, SEE CHART FOR FAULT
CODES AND CORRECTIVE MEASURES. WHEN THE ENGINE IS SHUT
DOWN DUE TO AFAULT, THE IGNITION SWITCHWILL NEEDTO BE
TURNED OFF THEN BACK ON TO RESTART THE ENGINE.
12 VOLT SUPPLY
N
U
GLOW PLUG
BUTTON
+
BATTERY
STARTER
MOTOR
STARTER
SOLENOID
842
42
W
W
Y
Y
MOU NTEDTONEG ATIVE
BRUSHHOLDER
THIS CIRCUIT USES THE
RESIDUAL MAGNETISM OF
THE GENERATOR TO FLASH
THE EXCITE THE ROTOR
WHICH IN TURN PROVIDES
THE EXCITATION FOR THE
GENERATOR
D
IO
DE AND
MO
V ASS
EM
BLY
IN-LINE BOLTED CONNECTION
BEHIND CONTROL PANEL
60
0C
BACK, LEFT SIDEOF ENGINE
FRONT, LEFTSIDE OFENGINE
BACK, LEFTSIDEOFENGINE
JUMPER PLUGISBEHINDLOWER
RIGHTSIDEOFCONTROLPANEL
LOWER, RIGHT SIDEOF CONTROLPANEL
DIODE
LOW ER,
RIGHTOF
CONTROL
PANEL
LOW ERLEFTOF
CONTROL PANEL
LOW ERLEFTOF
CONTROL PANEL
CENTER OF
CONTROL PANEL
BACK, RIGHT
S IDEO FENGIN E
BACK, LEFT
SIDEOF ENGINE
BACK, RIGHT
SIDEOF ENGINE
CENTEROF
CONTROL PANEL
UNDERLEFT DOOR
LOWERRIGHTOF CONTROLPANEL
44
28
12 VOLT
SUPPLY
ECU CONNECTOR DETAIL
9
17
25
34
26
18
10
1
FLASHES ALTERNATOR
SENSES ALTERNATOR OUTPUT
THE P10 PLUG IS ONLY ON UNITS
WITHOUT THE WIRE FEED MODULE.
THE WIRE FEED MODULE HAS A
HARNESS THAT PLUGS DIRECTLY
INTOJ5.
41
JUMPERPLUGIS
WIRE -T IEDU P
BEHINDLOCAL /
REMOTESWITCH
ONRIGHT SIDEOF
MACHINE
SCHEMATIC S25973
CURRENT SENSING PC BOARD
602B
400F
WH
ITE
LOA
DWH
ITE
LI
NE
HOT
LOA
D
HOT
LI
NE
115 VOLT GFCI
RECEPTACLE
400D
CB2
15A
6A
810
230 VOLT
RECEPTACLE
7A
6A
GND-E
11A
CB1
20A
82
0
GND-S
K924-5 REMOTE CONTROL
(OPTIONAL)
RHEO
STAT
R
EM
OTE
CO
NTROL
BOX
25+/-1.2
5 OHM
S EACH
64+/-6.4 OHM
S
M
AX
CCW
Y
W
G
X
R
EM
OTE
CO
NTROL
PL
UG
L13097
CLASSIC 300D (KUBOTA V2203M)
MACHINE SCHEMATIC
NONE
L12265
Ma
gl
ietta
D.
BENDER
U
NLESS
OTHERW
ISE
SPE
C
IF
IE
D
TOLERA
N
CE
MANUFACTURIN
G
TOLERANCE PER
E2056
ON 2 PLACE DECIMA
LS IS ± .02
ON 3
PLAC
E D
E
CI
MAL
S I
S ± .002
ON ALL ANGLE
S IS ±
.5 OF A DEG
REE
WITH PUBLISHED STANDARDS.
MA
TERIA
L TO
LERANCE ("
")
TO AGREE
t
DO N
OT S
CA
LE
TH
IS
D
RAW
ING
DRA
WN
B
Y:
DE
SI
GN INFORM
A
TION
E
NGIN
EE
R:
APPROVED:
REFERENCE:
EQU
IP
ME
NT
TYPE
:
SU
BJ
EC
T:
SCA
L
E:
MATERIAL
DISPOS
ITI
ON:
APPROVAL
DATE:
PROJECT
NUMBER:
UF
C
RM3753
5
1
PA
GE
___
OF
___
1
ENGINE
ERING CONTROL
L
ED
MANUFACTURER:
No
DOCUME
NT
N
UMB
E
R:
DOCUMENT
REVISION:
T
HIS
DOC
UME
N
T C
ON
TAINS P
R
OP
RIETA
RY IN
FO
RMATIO
N
OW
NE
D BY L
IN
C
OLN
GLOBAL, IN
C. A
N
D MAY NOT BE
D
UPLI
CA
TE
D,
C
OMMU
NI
CA
TE
D
TO OT
HE
R PA
R
TIES O
R
USE
D
FO
R A
NY P
U
RP
OSE WIT
HOU
T THE E
X
PRESS
W
RITTE
N PE
RMISSIO
N
OF LIN
C
OLN
GLOBAL, IN
C.
PROPRI
ETA
RY & CONFIDE
NTIAL:
B
04/13/20
07
REVISE
D 115 V
OLT GFCI R
ECE
PT
A
CL
E
G
RAP
HI
CS
CHA
NG
E
D
ET
A
IL:
L13097
LE
A
D
COLO
R
CO
DE:
B-BL
ACK
OR
GR
AY
G-GRE
EN
R-RE
D
OR
P
IN
K
U-BLU
E
W-
W
HIT
E
Y-Y
ELLO
W
N-BR
OWN
COM
P
ON
E
NT
V
AL
UE
U
NIT
S:
CAPA
CITO
R:
MFD/
V
OLTS
RESI
STO
R: O
HM
S/W
ATTS
CO
NNE
CTOR
P
IN N
UM
BERS:
VIEW O
F
CONNECTOR ON PC BOARD
1
2
6
712
LATC
H
EX
.
1
2
PIN CONNECTOR
LA
B
EL
S:
COMM
ON
FRAM
E
G
RO
UND
EA
RTH
GROU
ND
G-19
NOTE: This diagram is for reference only. It may not be accurate for all machines covered by this manual.
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