KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
54
Fig.5 EHR system wiring diagram
For outer illumination and signaling
, four headlights are installed on the tractor with high
and low beams as well as eight lights for service illumination, four turn indicators, four fender
lamps, "road-
train sign", two lateral repeaters of turn indicators, two “stop signal” lights.
EHR activation
EHR control panel
EHR system fuse panel
12V wire harness
Relay of unit SCR4-5 activation
(starter switch)
Relay of unit SCR4-5 activation
(generator)
Instrument panel
St
a
rt
e
r
sw
it
ch
p
a
rki
n
g
l
ig
h
t
D
+
f
ro
m
vo
lt
me
te
r
1
2
V
fro
m
so
cke
t
Right wing harness
lifting
lowering
Left wing harness
EHR harness
Rear semi-frame harness
Section EHR 23LS
Lifting solenoid
Lowering solenoid
EHR electronic linkage unit
Кее Parameter
3
“-” of position sensor
7
“
+128” activation of SCR4-5 unit (starter switch)
11
CAN_L
12
CAN_H
15
“+ 12V“ at D+ of generator
20
“
+12V” activation of SCR4-5 unit (starter switch)
22
“
Common” for remote buttons
26
“Lowering” button
37
Common solenoid
38
Signal from position sensor
42
+5V of position sensor
47
“Lifting” button
50
+ 12V
51
“-” supply
55
Lifting solenoid
56
Lowering solenoid
Designa-
tion
Description
Q-ty
AW
Controller solenoid EHR23-LS
2
М
Control panel
[HR R917 ООО 34 9
1
U
Linkage electronic unit EHR R917P10057
1
s1e...s4e Button set R917003174
4
SQ3
Position sensor R 917 002 927
1
R
Resistor 02-23-0.3-120 Ohm
2
F
Fuse panel 46.3722
1
KV20
Relay 753.3777
2
S1
Switch 6 ЕН007832-011
1
Sets of connectors
XS2.1.XS2.2S
22
Female connector
2
XS3.1.XS3.42
Female connector R917003174
4
XS3.5
Female connector R917000515
1
xs4.1
Female connector R900785606
1
XS70
Female connector R917008789
1
XS14.1-
XS14.3
Mail receptacle 206044-1
3
XS14.1-
XS14.3
Female receptacle 206043-4
3
lifting
lowering