DAF 95XF. Manual — part 350
5
MODIFICATIONS TO THE ELECTRICAL INSTALLATION
Modifications to the electrical installation from chassis number 0E477514
4-12
4.4 SUBDIAGRAMS OF CIRCUIT DIAGRAM 1316630/24-29
1
Charging circuit/starting motor/
contact switch /
starter switch
11
Front and rear fog lights
27
AGS
35
Converter/radio
36
Automatic windows / central door
locking /roof hatch
40A
Auxiliary heating Eberspächer
(with thermostat unit)
40B
Auxiliary heating Eberspächer
(with timer)
42
Connector sockets FT, diagnostic
connector, alarm connector
43
Connector sockets FA, diagnostic
connector, alarm connector
46
Auxiliary heating Eberspächer
Hydronic 10
48
ECAS 3
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5
Modifications to the electrical installation from chassis number 0E477514
MODIFICATIONS TO THE ELECTRICAL INSTALLATION
4-13
1. CHARGING CIRCUIT / STARTING MOTOR / CONTACT/STARTER SWITCH
CONTACT CIRCUIT
If a connection is made between contacts 1 and
6 with contact/starter switch C539, a voltage is
applied through fuse E037, switch C539 and
wire 1130 to contact 85 of relay G178.
Because relay G178 is activated, a connection is
made between contacts 30 and 87 and a
voltage is applied through fuse E037, wire 1100,
the contacts 30 and 87 of relay G178, wire 1147,
and through fuses E027 and E052 to the
electronic unit of converter 24 V/12V (D525) and
the work light switch (C725).
If a connection is made between contacts 1 and
4 with contact/starter switch C539, a voltage is
applied through fuse E037, wire 1100, switch
C539 and wire 4001 to contact 85 of relay G015.
As a result, relay G015 is activated, so that wire
1000 is connected to wire 1010. Now voltage is
applied to the supply after contact circuit
(connection point 1010) and, through resistor
B036 and diode D668, to the connection points
D+ of the alternator (A502) and connection point
1 of relay G372.
START CIRCUIT
When the engine is started, a connection is
made between the contacts 1 and 2 with
contact/starter switch C539. The voltage now
runs from the batteries through wire 1000, fuse
E037, connection 1–2 of the contact/starter
switch, wire 4004 and contacts 3 and 4 of relay
G372, wire 4002, to connection point 50 of
starting motor B010. The coil of the starting
motor relay is now activated, so that a voltage is
supplied to the starting motor, as a result of
which the motor will start operating.
As soon as the engine is running, the voltage on
connection D+ of the alternator will increase to
the adjustment voltage (+ board voltage). This
voltage will cause the coil of relay G372 to be
energised. It will break the connection between
3 and 4 and connects 3 to 5. As a result, wire
4002 is disconnected from wire 4004. In this
situation it is no longer possible to start.
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5
MODIFICATIONS TO THE ELECTRICAL INSTALLATION
Modifications to the electrical installation from chassis number 0E477514
4-14
CHARGING CIRCUIT
If the contact is activated, voltage is applied to
resistor generator B036 and diode D668 through
wire 1010.
The other side of the diode is connected to the
D+ connection of the alternator through wire
1020.
The D+ connection is connected to earth
through the integrated voltage regulator in the
alternator A502. This will cause a small current
to run, causing a magnetic field in the alternator.
After starting, the voltage on clamps B+ and D+
will increase to approx. 29 V. This is caused by
the fact that the regulator disconnects the earth
connection in the regulator and connects it to
the battery voltage. This voltage is also applied
to wire 1020, so that the difference of potential
over the diode becomes 0 V. The magnetic field
now disappears, so that the generator is not
activated for a short time. This will reduce the
voltage on outputs B+ and D+.
The regulator is activated if the voltage drops
below 27.6 V. This way, the generator voltage
supply remains relatively constant. The batteries
are fed by generator output B+.
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5
Modifications to the electrical installation from chassis number 0E477514
MODIFICATIONS TO THE ELECTRICAL INSTALLATION
4-15
1
1316630/24-29
EL000343
1
23456789
1
0
1
1
1
2
1
3
1
4
1
5
1
6
1
7
1
8
1
9
2
0
2
1
2
2
2
3
2
4
2
5
2
6
2
7
2
8
2
9
3
0
3
1
3
2
3
3
3
4
3
5
3
6
3
7
3
8
3
9
4
0
4
1
4
2
4
3
4
4
4
5
4
6
4
7
4
8
4
9
5
0
5
1
5
2
5
3
1202
1202
1000
1000
1000
1020
4002
4004
4004
1020
4001
1010
1000
1000
4002
4002
4002
1130
1100
1100
1/412
1010
1020
4004
4004
4004
4004
1100
1020
1020
1020
1000
4002
1000
1000
1000
1000
1130
1100
1000
1010
4001
1020
1000
1106
1110
1110
1147
1147
1147
4049
4049
1202
1202
1202
1202
4002
4004
1202
1202
4011
4011
1202
4049
4049
4049
4049
4049
1000
1000
1000
G243
3
24
A
114
1
114
2
383
D853
B6
7
A500
1/416
1/417
15/402
19/402
25/403
2/403
G525
G525
G014
1
3
27
114
2/412
4/412
6/412
34/400
A040
7
42
D827
A4
41
B
114
C539
8
383
30
87
86
85
G015
50
B010
M
31
30
G
3
D
B+
D+
A502
20/402
D525
2
35
12/403
26/403
32/400
1/402
3/402
C725
5
22
24/403
13/402
1
176
10/403
D
114
4
1
B192
55/
232
16/
232
45/
232
42/
232
D884
D813
1
13
16/402
C726
5
71
01
2
176
10
176
C775
3
4
5
185
E564
2
14
G525
D804
6
30
C754
5
30
10
376
12
114
7
371
E043
A1
23
E168
A1
21
D878
1010
1000
E037
15A
1000
1010
D668
B036
1024
1020
30
86
85
87A
87
G178
1100
1147
1130
E027
10A
1020
E052
10A
1147
E019
10A
G372
3
45
1
2
4004
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