Circuit diagrams 7
Wiring diagram
Legend
1B1 Speed actual-value transmitter, 85–86
1B2 Dual potentiometer for accelerator, 84–89
1B4 Hydraulic oil temperature sensor, 88
2B1 Joystick basic functions, 116–121
:1 − 5V
:2 − Lift/lower
:3 − Tilt forwards/back
:4 − Lift/lower reference
:5 − Tilt forwards/back reference
:6 − 0V
2B2 Joystick additional functions, 123–129
:1 − 5V
:2 - Auxiliary 1
:3 - Auxiliary 2
:4 - Auxiliary 1 reference
:5 - Auxiliary 2 reference
:6 − 0V
2B3 Dual potentiometer for lift mast tilt angle,
137–141
F8 2A fuse, 81
F9 15A fuse, 83
N1 LHC electronic traction controller, 81–156
:1 − 5V drive sensor
:6 − Forwards hydraulic pump 1Y2
:7 − Reverse hydraulic pump 1Y3
:8 − Microfilter pressure switch
:10 − Coding
:12 − Lift/lower
:13 − Hydraulic oil temperature sensor
:15 − 0V forwards hydraulic pump
:16 − 0V reverse hydraulic pump
:17 − 0V fan valve
:19 − 0V release valve
:21 − ISO K-drive
:28 − Coding
:29 - Auxiliary 2
:30 − Tilt angle
:31 - Auxiliary 1
:32 − Drive potentiometer reference
:33 − Seat switch reference
:36 − Middle
:37 − Forwards
:38 − Seat switch
:39 − ISO L-drive
:40 − Mast vertical indicator
:44 − Auxiliary 2/B (B4)
:45 − Auxiliary 2/A (A4)
:46 − Release valve 1Y4
:47 − Coding
:48 − Tilt forwards/back
:49 − Drive potentiometer
:52 − Coding
:53 − Terminal 15
:56 − Code
:58−Brake1
:59−Brake3
:61 − Drive earth sensor
:62−Fanvalve1Y5
:63 − Speed actual-value transmitter
:68 − GND
:69 − GND
:70 − GND
:71 − GND
:72 − Reverse
:73−Brake2
:80 − Drive earth sensor
:81 − Drive earth sensor
:82 − Auxiliary 1/A (A3)
:85 − ISO K-lift
:88 − Lift earth sensor
:89 − Lift earth sensor
:90 − Auxiliary 1/B (B3)
:91 − Tilt forwards (A2)
:92 − Tilt backwards (B2)
:93 − Lift
:94 − ISO L-lift
:96 − Lift earth sensor
:98 − Lower
:101 − Lift/lower reference
:102 − Tilt forwards/back reference
:103 − Tilt angle reference
:104 - Auxiliary 1 reference
:105 − Mast vertical
:106 − 0V lift/lower
:107 − 0V tilt forwards/backwards
:109 − 0V safety valve
:111 − Safety valve
:112 − 0V (1/A)/(1/B)
:113 − 0V (2/A)/(2/B)
:114 − Earth
:116 − 5V lift sensor
:117 - Auxiliary 2 reference
:118 − 5V lift sensor
:119 − Earth
:120 − Terminal 30
:121 − Terminal 30
S4 Seat switch, 147–148
1S1 Brake pedal switch 1, 100-101
1S2 Single-pedal travel direction switch, 107-
112
X4 3-pin plug connector (seat switch), 147, 148
X10 18-pin plug connector (central electrical
system), 97-105
X11 9-pin plug connector (central electrical
system), 109–111
1X1 3-pin plug connector (1B1), 84
1X2 3-pin plug connector (1S1), 100, 101
1X3 6-pin plug connector (single-pedal), 108-
112
2X1 2-pin plug connector (microfilter), 125, 126
2X3 6-pin plug connector (2B1), 116–121
2X4 6-pin plug connector (2B2), 124-129
2X5 10-pin plug connector (valve block),
133–153
1Y2 Solenoid valve "y" forwards, 91
1Y3 Solenoid valve "z" backwards, 94
1Y4 Release valve, 97
1Y5 Fan valve, 91
2Y1 Lower valve, 131
2Y2 Lift valve, 133
2Y3 Tilt forwards valve, 136
2Y4 Tilt backwards valve, 138
2Y5 Auxiliary valve 1B, 142
2Y6 Auxiliary valve 1A, 144
2Y7 Auxiliary valve 2B, 147
2Y8 Auxiliary valve 2A 149
2Y9 Safety valve, 153
Wire colours
BK Black
BN Brown
BU Blue
GN Green
GY Grey
OG Orange
RD Red
VT Violet
WH White
YE Yellow
The number in front of the wire colour refers
to the wire cross-section.
Wires with unspecified cross-section = 0.75
mm
2
Notes
(a) Speed restriction
(b) Brake lights
(c) Programmable reversing sign
al
(d) Not assigned
(e) Shovel operation
(f) Radiator water level
(g) Door locking switch
(h) Air conditioning
(j) Engine switch-off
(k) Air conditioning switch-off
(l) Brake pedal switch 2
(m) Coding plug for double-pedal i
dentification
(n) Travel direction switch for si
ngle-pedal
(o) Engine control unit
(p) Wires twisted together
Operating Instructions – 393 807 1001 EN – 08/2008 233
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