DAF LF45, LF55 Series. Manual — part 359
5
LF45/55 series
Reading circuit diagrams
READING DIAGRAMS
3-5
Symbol
number
Description
1
Loudspeaker
2
Electropneumatic or hydraulic valve, 1 driving coil
3
Electropneumatic or hydraulic valve, 2 driving coils
4
Electropneumatic or hydraulic valve, 3 driving coils
5
Diode
6
Bipolar diode
7
LED
8
LED with series resistor
9
4-position switch, key-operated
10
3-position switch with fixed central position, manually operated, spring return
11
Dual 3-position switch with fixed central position, manually operated, spring return
12
Potentiometer with series resistor
13
Potentiometer without series resistor
14
Dual switch; one 2-position switch, manually operated, changeover contact, one
2-position switch, manually operated, contact normally open
15
Dual switch; one 2-position switch, spring return, contact normally open, one
3-position switch, fixed central contact, spring return, changeover contact
16
2-position switch with fixed 0-position, spring return, contact normally open
17
Through-connection
18
Relay with changeover contact
19
Relay with changeover contact
20
Switch, pressure-controlled, dual break, contact normally closed
21
Switch, pressure-controlled, dual break, contact normally open
22
Switch, temperature-controlled, single break, contact normally closed
23
Switch, mechanically operated, dual break, contact normally closed
24
Switch, mechanically operated, dual break, contact normally open
25
Pressure - voltage converter
26
Temperature - voltage converter
27
Revs - pulse converter
28
2-position switch, single break, contact normally open, foot-pedal-operated
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READING DIAGRAMS
Reading circuit diagrams
LF45/55 series
3-6
Symbol
number
Description
29
2-position switch, float-operated, dual break, contact normally closed
30
Sensor, Impedance
31
Sensor, Induction
32
DC motor, key-operated
33
DC motor
34
2-speed DC motor
35
Starter motor
36
Bulb
37
Resistor
38
Fuse
39
Heating element
40
Temperature-switched heating element
41
Socket with two contact sockets
42
2-position switch, fixed central position, manually operated
43
Timer
44
Threefold switch, fixed central position, contact normally open, manually operated,
spring return
45
Fluid level, voltage converter
46
Twisted wire
47
Buzzer
48
2-position switch, manually operated, single break, contact normally open, in
combination with tubular lamp
49
2-position switch, key-operated, single break, contact normally open
50
Protected wire with earth connection
51
Switch, temperature-operated, single break, contact normally closed
52
Switch, pressure-operated, single break, contact normally closed
53
Twofold, 2-position, magnetically operated reed switch, single break, contact
normally open
54
Generator
55
Steering angle sensor
56
VSC module
7
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LF45/55 series
Reading section diagrams
READING DIAGRAMS
4-1
4. READING SECTION DIAGRAMS
EXPLANATION OF THE POSITION NUMBERS IN THE SECTION DIAGRAMS
In the section diagram only information that is
functional in the section diagram described is
shown in detail.
1. The wiring is shown in the same colours as
the wiring in the vehicle.
2. The wire numbers are as they are printed
on the wiring in the vehicle.
Suffixes to wire numbers, such as A, B, C,
etc., have been omitted.
3. Basic code of a component. For component
descriptions, see the legend to the diagram.
For more information, see the relevant
section diagram.
4. Number of the wire connection point or the
PCB track on the component.
5. The basic code of the connector and the
connection point on this connector.
6. The symbols indicate which system or
component is being referred to (in most
cases the symbol is also shown on the lens
of the warning lamp or switch).
7. PCB tracks.
8. The central box and instrument panel PCBs
are grey.
9. Removable components are shown in
white.
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5
READING DIAGRAMS
Reading section diagrams
LF45/55 series
4-2
10. Reference to the component and
connection point and to the section (section
diagram) which gives further information
about this component.
G178
85
7
G178
=
Basic code number of the
component
85
=
Connection point on the
component
7
=
Reference to section
diagram 7
11. ATTENTION! The situation on the vehicle
may be different, because of different
specifications. Always consult the legend to
the diagram.
12. The housing of this component is connected
to earth. The line shown is therefore not a
wire.
13. Search bar numbers.
14. Drawing number as well as section number.
15. Relation to the circuit diagram.
7
200440
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