25 –   6 Repair manual  SWE100, 120, 120L, 120S, 140, 140L, 200D © BT 
Electrical components and wiring diagrams
Wiring diagram
T code Valid from serial no. Date Order no.
841×842×843 6061850- 2012-08-30 258946-120
25.2.2 General wiring diagram 
G1
+
-
40
1
6
F
EXT.
EQUIP.
2:S17
Hall
2:S21
Hall
2:S22
Hall
A2:S1-S9 A2:S10-S18
Hall Hall
SAFETY
REVERSE
SUPPORT ARM
LIFT
SUPPORT ARM
LOWER
SPEED
REF.
VALUE
30
 (+) POS. VOLT.
 (-) NEG. VOLT.
 MAINS, EARTH
RED
BLACK
 MAINS, VAC
 MAINS, VAC
K110
T7/T8
DISPLAY 
P6
A5
KEYBOARD /
SMART CARD
S223
B90
T1
 (+) B+ 
 (-) B- 
 (83) +24V 
 (95) TILLER ARM
 IN DRIVE POS. 
 (86) MAST SWITCH 1 
 (94) SUPPORT ARM
 IN LOW POS
 (101) MAST SWITCH 2
 (84) ENABLE/PRE-CHARGE 
 (104) CH A, SPEED SENSOR 
 (103) CH B, SPEED SENSOR 
 (92) THERMAL SENSOR
 (DRIVE MOTOR) 
NEGATIVE SPEED/ (105)
THERMAL SENSOR
U
V
W
MAIN CONTACTOR (106)
OUT PUMP CONTACTOR (107)
DRIVE MOTOR
PUMP MOTOR 
FORK VALVE (98) 
SUPPORT ARM VALVE (110) 
BRAKE RELEASE (90)
PROP. LOWER VALVE (108)
+24V (82)
SIGNAL HORN (112)
+5V SPEED SENSOR (85)
CAN HIGH/LOW
(99/100)
0V DC ( )X3
+24V DC (X3)
CAN HIGH ( )X3
CAN LOW ( )X3
 (X3) +24V DC
 (X3) 0V DC
(X3/X3)
CAN HIGH/LOW
 (X1 1) HORN 2
 (X4 1) HORN 1
 (X4 2)
 (X1 2)
 (X2:1/2) TURTLE
 (X2:1/3) TURTLE
 (X8:1) +5V DC
 (X8:2) FORK LIFT/LOWER
 (X8:3) OUT 0V DC
()X12
 (X11)
(3/4)
CAN HIGH/LOW
 +24VDC
 0VDC
 12VDC/24VDC
0VDC
 (1) +24V DC
 (2) 0V DC
(3/4)
CAN HIGH/LOW
 (1) +24V DC
 (8) 0V DC
 ANTENNA
(2/3)
CAN HIGH/LOW
F1
F51
S21
M3
M3
Q10
Q25
Q1
Q4
Q22
Q23
P4
F52
M1
X23
F50
B1
B11
B62
B64
B60
B63
T20
X41
S206
S224
+
-
A
S18:1
S18:2
24
40
72
70
74
71
20
61
62
63
31
34
5
32
33
30
50
81
80
60
20
119/120
20
40
119/120
20
40
119
120
119/120
25
40
26
41
20
40
119/120
20
40
119/120
OPTION
OPTION
OPTION
OPTION
OPTION
24
24
20
1
64
1
20
40
S97
P5
OPTION
SWE100
B65
74
(87) INP. SUPPORT ARM, AT TOP POS.
2
1
Based on 236986 rev. F
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