JLG 1850SJ, Service And Maintenance Manual, Page: 700 / 712

SECTION 7 - BASIC ELECTRICAL INFORMATION & ELECTRICAL SCHEMATICS
7-108 3121619
BLK 0-14
X158
1
WHT 52-7 H&T LT SIG
X159A
1
2
3
4
5
6
7
8
9
10
11
12
WHT 47-6 ALT EXC
WHT 25-6 PLVL UP O/R
WHT 25-5 PLVL DN O/R
WHT 50-2 PLTFRM DUMP (16)
WHT 50-3 JIB DUMP (16)
WHT 27-3 JIB DN O/R
RIGHT DRV
PUMP FWD
HV142
1
2
RIGHT DRV
PUMP REV
HV143
1
2
LEFT DRV
PUMP REV
HV144
1
2
LEFT DRV
PUMP FWD
HV145
1
2
S146
BLK 0-15-3
BLK 0-15-1
BLK 0-15-2 BLK 0-15-2
BLK 0-15-4
X222A
1
2
3
4
5
6
WHT 7-4 RDRV PFWD
WHT 7-4 RDRV PFWD
WHT 7-3 RDRV PREV WHT 7-3 RDRV PREV
WHT 7-1 LDRV PFWD
WHT 7-1 LDRV PFWD
WHT 7-2 LDRV PREV
WHT 7-2 LDRV PREV
BLK 0-15 BLK 0-15
ENABLE
CHASSIS
H
V
31
4
1 2
ENABLE
LIFT
H
V
31
5
1 2
VALVE
WARM UP
H
V
31
6
1 2
W
H
T
55
-3
3
W
A
R
M
U
P
WH
T
6
0-6
W
AR
M
U
P
R
TN
W
H
T
5
5
-3
1
CH
S
ENABL
E
W
H
T
5
5-
30
L
F
T
ENABL
E
WHT 55-30 LFT ENABLE
BL
K 0
-3
6
BL
K 0
-3
0
W
H
T
6
0-7
L
E
N
ABL
E RT
N
W
H
T
49
-4
5
H
Y
D
O
IL
T
E
M
P
WHT 49-45 HYD OIL TEMP
BLK 0-31
BL
K 0
-3
1
OIL TEMP.
HYDRAULIC
S
N
41
6
1 2
PRESSURE CHECK
SENSOR
S
N
438
1 4 3 2
SHL
D
LIFT PRESSURE
SENSOR
S
N
439
1 4 3 2
SHL
D
X440A
1
2
3
4
5
6
7
8
BLK 49-74 L P GND (20)
BLU 49-75 PRS CHK (20)
BRN 49-77 P C PWR (20)
BLU 49-72 LIFT PRS (20)
BRN 49-73 L P PWR (20)
BLK 49-76 P C GND (20)
SH
L
D
P
L
IFT
SN
(2
0)
S455
SHLD RTN (20) SHLD RTN (20)
SH
L
D
P
C
H
K
SN
(2
0)
Figure 7-112. Electrical Schematic - Sheet 12 of 21