Product Manual
52 Owner’s Manual for Mobile Generator
Wiring Diagrams
WIRING DIAGRAM FOR CONTROLS OF MDG250/175/150DF4
BN
YL
OR
BN/WT
YL/WT
OR/WT
BK
CLR
SHLD
87
86
30
85
START
RD
RD/VI
TO
GND
BAR
BK/WT
BATT
FUSED
FU&SW1
20A
20A
15A
RD/WT
RD
RD
RD/WT
15A
WT
1
2
3
4
TB1
FUEL
TO
GND
BAR
BK/WT
X
T
C
A
W
M
N
P
R
S
H
J
K
L
U
E
B
V
D
F
G
5
15A6
BAR
GND
TO
BK/WT
RD/BK
RD
13
18
19
16
17
12
23
4
2
15
14
11
20
5
1
3
6
10
21
9
1
18
17
4
11
2
22
21
29
3
28
27
26
5
6
10
12
25
13
7
31
24
16
30
8
9
19
20
23
15
14
BK/WT
2
6
5
4
3
2
1
NC
CONTROLS
SWITCH
5
6
LIGHTS
BK
BK/WT
BAR
GND
TO
INTERIOR
LIGHTS SW
BAR
GND
TO
2
6
OR/WT
10
11
12
13
15
14
18
17
18
126
127
128
22
19
20
21
22
23
24
25
23
24
25
27
28
29
145
146
BK
WT
PH SW
DOOR
CNO
(HELD
CLOSED
NORMALLY)
BK/WT
1
18
17
4
11
2
22
21
29
3
28
27
26
5
6
10
12
25
13
7
31
24
16
30
8
9
19
20
23
15
14
34
36
34
37
47
48
51
13
BL/WT
BAR
GND
CAN H
CAN L
INPUT #1
FUEL LVL
5
67
69
68
71
72
74
38
38
39
C
77
87
87
1
4
11
2
3
5
6
10
12
13
7
8
9
15
14
1
4
11
2
3
5
6
10
12
13
7
8
9
15
14
18
17
22
21
29
28
27
26
25
31
24
16
30
19
20
23
18
17
22
21
29
28
27
26
25
31
24
16
30
19
20
23
20A
105
118
1
117
5
6
CONV. REC.
SWITCH
LIGHT
WT
BK
119
YRTEM
E
L
E
T
69
TO
12V
BATT
BK/WT
BK
CLR
SHLD
CLR
BK
SHLD
94
95
INHIBIT
MANUAL
AUTO
54
65
FUSE BLOCK
87
86
30
85
PAS
TO
GND
BAR
BK/WT
20A
20A
15A
7
8
9
10
20A
65
64
121
123
112
125
119
SWITCH
ECU
600V 5A
600V 5A
600V 5A
148
147
146
142
BK
BK/WT
RD
RD/WT
RD/WT
RD/BK
RD/BK
148
RD/BK
BL/YL
RD/WT
RD
BL/WT
RD/VI
RD/VI
RD/VI
BK/WT
RD
BN/WT
BN
RD
BK
BN
BN/WT
BK/WT
WT
OR
YL
BN
YL
OR/WT
YL/WT
BN/WT
GND
BAR
TO
BK/WT
GND
BAR
TO
41
BK/WT
GREY
RD/BK
WT/VI
RD/BK
GY/BK
RD/VI
RD/VI
GY
BL/WT
WT/YL
OR/BK
WT/RD
GY
89
OR/WT
92
OR/BK
OR/BK
142
RD/VI
661
BL/YL
93
OR/BK
94
GY
145
RD/VI
TO MHCRC-7
SEE PAGE 4
95
RD
96
BK/WT
90
OR/YL
92
OR/BK
89
OR/WT
91
BK/WT
109
BK/WT
108
GY
107
BK/WT
105
GY
106
BK/WT
104
GY
100
RD/VI
63
BL/WT
62
BK/WT
13
BL/WT
52
BK/WT
51
GY
138
BL/WT
31
VI/YL
30
RD/VI
36
GY/BK
35
BK/WT
34
RD/BK
48
BK/WT
47
WT/VI
BK/WT
BK/WT
BK/WT
BK/WT
BK/WT
BK/WT
BK/WT
BK/WT
BK/WT
BK/WT
35 52
62
111
106
107
109
91
113
96
RD
RD/VI
RD/VI
RD/VI
RD/VI
GY
BK/WT
663
PS
1
RD/BK
141
BK/WT
147
RD/VI
39
RD/VI
73
RD/YL
47
WT/VI
82
BK
40
WT/BL
53
GY
57
GY
OR/BK
90
OR/YL
TO MHBBC-11
TO MHBBC-22
SEE PAGE 4
22
24
63
RD/YL
73
RD
72
RD/VI
108
WT/YL
8
7
6
5
138
BL/WT
GY/OR
150
GY/OR
TO MHCRC-8
SEE PAGE 4
BK
CLR
SHLD
BK
CLR
SHLD
139
BK/WT
(OPTIONAL) (OPTIONAL)
(OPTIONAL)
(OPTIONAL)
(OPTIONAL)
WT
BK
WT
BK
WT
BK
WT
BK
TO VOLT REGULATOR
(SEE PAGE 2)
93
10
4
WT/RD
112
WT/YL
90
OR/YL
89
OR/WT
92
O
R
/
BK
93
OR/BK
95
RD
/
VI
150
100
YL
17
TO AUX TANK
(SEE OPTIONS)
TO AUX TANK
(SEE OPTIONS)
RD/VI
1
94
RD/VI
194
TO AUX TANK
(SEE OPTIONS)
113
BK/WT
112
WT/YL
(OPTIONAL)
RD/VI
194
RD/VI
13
GN
0
BK
0
RD/BK
1
67
BK/WT
0
TO AUX TANK
(SEE OPTIONS)
RD/BK
14
RD
13
TO AUX TANK
(SEE OPTIONS)
TO AUX TANK
(SEE OPTIONS)
TO AUX TANK CONN4
(SEE OPTIONS)
15
RD/VI
RD/VI
194
RD/VI
194
RD/VI
1
94
RD/VI
13
GN
0
BK
0
RD/BK
167
BK/WT
0
TO AUX TANK
(SEE OPTIONS)
207
BK/WT
SEE PAGE 4
TO AUX TANK
(SEE OPTIONS)
TO AUX TANK
(SEE OPTIONS)
TO BATT (-)
SHLD
CLR
BK
BK
CLR
SHLD
BK
205
BK
205
GND
BAR
TO
BK/WT
207
BK/WT
206
BK/WT
208
206
BK/WT
TO BATT (-)
208
BK/WT
TO BATT (-)
6
5
4
BL/WT
RD
140
RD/VI
GROUP G
WIRING - DIAGRAM
MDG250/175/150 DF4 7310MKII
DRAWING #: A00000656058
REVISION: A
DATE: 3/12/20
PAGE 2 OF 12
SPARE
LOW COOLANT
REMOTE START
PAS
LUG DOOR
LOW OIL LEVEL
SHUNT TRIP
FUEL XFER
COLD WTHR PK
ALARM/BEACON
LEAK DETECT
SPARE
AB
A
BC
D
EFGH
JIHG
F
E
IDLE SPEED
SPARE
PHASE SW DOOR
ABCDE
F
RD
77
OR/WT
100
RD/VI
TO VOLT REGULATOR
FROM T-7 FUSE