V
W
Y
Z
L
M N
O
F
G
H
K
X
I
J
EDCBA
U
T
S
R
86
SJ1044 TH, SJ1044 THS, SJ1056 TH, SJ1056 THS, SJ1256 THS
230790ABA
1
2
5 87 103 4 6 9
FUSE
NO. RATING
AMPERE
CIRCUIT
RELAY CHART
RELAY
NO.
FUNCTION
-
HEATER VALVE, A/C
WIPER, FRONT & TOP
BLOWER
FAN/INT. LIGHT
F17
30A
F18
F15
F16
F14
F13
10A
5A
-
10A
CAB
OPTION
ENCLOSED
IGNITION/POWER RELAY
REAR AXLE LOCK
POWER PORT
HORN/BEACON OPT.
ROAD LIGHTS
REAR WIPER
BOOM LIGHTS
WORK LIGHTS
TRANS/B-U ALARM/PARK BRAKE
STEER SELECT/GAUGE/TRANS TEMP
F5
F10
F12
F11
10A
10A
5A
15A
5A
F9
F8
F7
F6
10A
F3
F4
F2
F1
10A
10A
10A
10A
OPTIONS
F20
FRAME/CARRIAGE ENABLE
10A
AUXILLARY HYDRAULICS
5A
OUTRIGGERS
10A
15A
5A
FRAME LEVEL INTERLOCK
F19
100A
F27
F26
20A
GLOW PLUG
FUEL PUMP
30A
F25
ECM
BRAKE LAMP
5JCR
CARRIAGE ENABLE
POWER RELAY
BOOM UP
56ACR
19CR
224CR
222CR
60CR
FUEL PUMP
POSITIVE SHUTOFF
403ACR
FRAME ENABLE
BOOM ANGLE
212CR
77CR
ENGINE RUNNING
255CR
REAR WIPER
258CR
FRONT WIPER
LEFT TURN SIGNAL
250ACR
RIGHT TURN SIGNAL
251ACR
TOP WIPER
258ACR
PARK BRAKE RELEASE RELAY
05CR
TURN/HAZ./BRAKE LIGHTS
65CR
FRAME LEVEL DISABLE
28CR
BOOM RAISE DISABLE
28LCR
FRAME LEFT ENABLE
28RCR
FRAME RIGHT ENABLE
11CR
GLOW PLUG
F21
-
-
F22
-
-
F23
-
-
F24
-
-
STARTER INTERRUPT
57DCR
-
-
-
-
R.A.S. DRIVE/BRAKE INPUT RELAY
R.A.S. RESTRICT MODE ENABLE
223ACR
220CR
84
83
82
81
53
77
80
79
78
76
74
75
73
72
71
70
69
68
67
60
66
65
64
63
62
61
59
58
57
56
55
54
51
52
50
49
48
47
45
46
43
44
42
41
40
36
37
39
38
34
35
33
29
32
30
31
26
27
28
22
25
23
24
21
20
19
18
17
16
14
15
13
12
5
10
11
9
8
7
6
4
3
2
1
04
04
04
04
04
04
00
04
05G
246
247
246
246
246
247
246
05K
256
05L
05N
260
05P
262
263
264
265 266
266
266
267 268 269
270
269
270
266
262
263
264
90
87
86
85
88
89
100
98
99
97
96
95
91
92
93
94
211
105
104
102
103
101
258
259
259A
05L
05L
05L
05L
00
247
247
04
05J 249
253
254
252
250A
251A
254
254
05J
05J
250B
251B
249
05J
05J
D05J
250
250A
251
251A
254
254
252A
250A
251A
256
05K
250
251
00
05L
208
208A
108
106
107
113
112
110
111
109
57
403
401
CANL
CANH
403A
402
403
02
408
403A
403A
403A
403B
05H
261
271
271A
271
271A
115
114
261
05D
CANL
CANH
HEATER POT.
SW17
BLOWER
SW.
WINDSHIELD WASHER
BOOM LIGHTS SWITCH
FROM SHEET 1
FROM SHEET 1
BA
FUEL GAUGE LAMP
WORKLIGHT SWITCH
HEATER POT.
A/C PRESSURE SWITCH
A/C COMPRESSOR SOL
BLOWER MOTOR
WINDSHIELD WASHER SWITCH
INTERIOR LIGHT
FAN
TOP WIPER
FRONT WIPER
BOOM LIGHTs
RIGHT FRONT WORKLIGHT
LEFT FRONT WORKLIGHT
SW24
WASHER/WIPER
SW.
BOOM LIGHT
RIGHT FRONT WORKLIGHT
LEFT FRONT WORKLIGHT
LEFT REAR WORKLIGHT
A/C COMPRESSOR
PS3
A/C PRESS. SW.
TPSW2
A/C TEMP. SW.
HEATER VALVE
A C
D
MOTORIZED
M8
SW18
A/C SW.
OUT
+
GN
10 A
F20
C
M7
BLOWER
B+
F18
30 A
0
L
M
H
INT. LIGHT
BEACON
5 A
F17
M6
FAN
TOP WIPER
10 A
F15
FRONT WIPER
10A
F14
15 A
F12
1
3
2
5
6
4
F11
10 A
MOTORIZED
HEATER VALVE
BEACON LIGHT
2H-57
C
PS.RB
PL7 - RD
RESERVE BRAKE
SOL.
RESERVE BRAKE P/S &
LIGHT
D
M3
WASHER
M4
1
3
2
5
4
6
M5
RIGHT REAR WORKLIGHT
258CR RELAY
FRONT WIPER
6
4
5
2
1
3
D252-1
D252
RIGHT
LEFT3
1
2
2
PS2
5JCR
BRAKE LAMP RELAY
LX
FL1
FLASHER
F13
5 A
SW 23 - HAZ.
250ACR
LEFT SIGNAL
251ACR
RIGHT SIGNAL
BRAKE PRESSURE SWITCH
BRAKE LAMP RELAY
HAZARD SWITCH
FLASHER
RIGHT TURN/BRAKE LIGHT
LEFT TURN/BRAKE LIGHT
RIGHT TURN SIGNAL
LEFT TURN SIGNAL
6
4
5
5
6
4
TAIL LIGHTS
BOOM LIGHT
LEFT TURN/BRAKE LIGHT
RIGHT TURN/BRAKE LIGHT
RIGHT REAR WORKLIGHT
LEFT REAR WORKLIGHT
J
FUEL GAUGE LAMP
D252A-1
D252A-2
3
1
258A CR RELAY
TOP WIPER
1
3
SW 9
POS. SHUTOFF.
2
20 A
B1
DL6 - RD
E
VALVE HOLD
RED LIGHT
MANUAL SHUTOFF.
SWITCH
VALVE ENGAGE
CANL
VALVE HOLD
MANUAL SHUTOFF
AUTO-RESET
BREAKER
GROUND
VALVE GROUND
CANH
SHUT OFF-SOL.
K
L
R3
50 Ω
FRONT RIGHT TURN
FRONT LEFT TURN
FRONT RIGHT TURN
FRONT LEFT TURN
D250
D251
TAIL LIGHTS
4
6
5
1
3
2
SW19 - ROAD LIGHT
HEAD LIGHTS
HIGH BEAM
LOW BEAM
HEAD LIGHTS
HIGH BEAM
LOW BEAM
HEAD LIGHTS
RIGHT
LEFT
RIGHT
LEFT
FROM SHEET 1
SW11 - WORK
LIGHTS SW.
SW10
BOOM LIGHTS
SW.
SW12 - TURN SIGNAL
SW 8
SW 13
LEFT OUTRIGGER SW.
RIGHT OUTRIGGER SW.
OUTRIGGER - R2
RETRACT LEFT
OUTRIGGER - E2
EXTEND LEFT
OUTRIGGER - E1
EXTEND RIGHT
OUTRIGGER - R1
RETRACT RIGHT
04
225
227
226
228
05S
4H-225
4H-226
4H-227
4H-228
SW21 OUTRIGGER SW.
LEFT
3
1
2
2
1
3
SW22
OUTRIGGER SW.
RIGHT
10 A
F10
3.37 Electrical Schematic 74 HP - SJ1044 TH & SJ1056 TH
3.37 Electrical Schematic 74 HP - SJ1044 TH & SJ1056 TH
M190121AP-S2
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