DAF LF45, LF55 Series. Manual - part 420
11
Tw
o
actions
are
carried
out
immediately
after
switch
C853
is
opened:
1.
Connection
point
A7
is
connected
to
earth
(A2).
2.
After
a
delay
of
approx.
6
seconds,
relays
G367
and
G368
are
connected
to
earth
for
approx.
0.5
sec.
via
w
ire
4175
and
connection
point
A4.
T
his
breaks
the
connection
between
points
88a
and
88
of
relays
G367
and
G368.
The
positive
and
the
negative
terminals
of
the
batteries
are
now
disconnected
from
the
vehicle’
s
power
supply
.
If
the
engine
is
running,
it
is
switched
of
f.
Connection
point
A5
is
connected
to
the
positive
terminal
via
w
ire
3173
after
connection
point
88
of
relay
G
367.
This
connection
transmits
a
signal
to
the
E
CU
to
indicate
that
relay
G
367
has
switched.
Opening
the
main
switch
electrically
on
the
chassis
E501695
E153
G425
D924
E330
G367
C854
G368
A
TTENTION:
switch
C853
must
be
in
the
“main
switch
on”
position
(connection
b
etween
contacts
5a
n
d
7)
.
Switch
C854
(switch
for
main
switch
in
cab)
breaks
the
C1
and
C2
connections
to
the
C
4
and
C5
connections
via
w
ire
4176,
contacts
5
-
7
of
switch
C
853,
wire
4177,
contacts
1
-
2
of
switch
C854
and
wire
4178.
Tw
o
actions
are
carried
out
immediately
after
switch
C854
is
opened:
1.
Connection
point
A7
is
connected
to
earth
(A2)
in
the
unit.
2.
After
a
delay
of
approx.
6
seconds,
relays
G367
and
G368
are
connected
to
earth
for
approx.
0.5
seconds
via
w
ire
4175
and
connection
point
A4.
T
his
breaks
the
connection
between
points
88a
and
88
of
relays
G367
and
G368.
The
positive
and
the
negative
terminals
of
the
batteries
are
now
disconnected
from
the
vehicle’
s
power
supply
.
If
the
engine
is
running,
it
is
switched
of
f.
Connection
point
A5
is
connected
to
the
positive
terminal
via
w
ire
3173
after
connection
point
88
of
relay
G
367.
This
connection
transmits
a
signal
to
the
E
CU
to
indicate
that
relay
G
367
has
switched.
Note: When
one
of
the
switches
(C853
or
C854)
that
activate
the
electronic
unit
(close
m
ain
switch)
is
operated,
relays
G367
and
G368
are
activated
after
approximately
3
seconds.
If
one
of
the
switches
is
operated
again
w
ithin
the
3
seconds,
the
electronic
unit
(D924)
will
select
the
priority
‘main
switch
ON’.
VARIANTS
Location 76
G368,
main
switch
relay
,earth:
Fitted
depending
on
the
requirements
for
transporting
hazardous
substances
88,
90
These
w
ires
are
only
present
if
ADR
is
fitted.
These
w
ires
are
only
present
if
ADR
is
fitted
94
Earth
connection
to
connector
834
is
only
present
if
ADR
is
fitted
Earth
connection
to
connector
834
is
only
present
if
ADR
is
fitted
97
Connector
831:
Only
present
if
th
e
syst
em
is
fitted
w
ith
an
external
current
limiter
(D826)
98,
101
Connector
832:
Only
present
if
th
e
syst
em
is
fitted
w
ith
an
external
current
limiter
(D826)
99
Electronic
unit,
VLG
current
limiter
(D826):
Fitted
depending
on
the
requirements
for
transporting
hazardous
substances.
V
ersion
w
ith
production
date
<
2002-49:
current
limiter
(D826)
used
as
shown
98,
101
V
ersion
w
ith
production
date
>
2002-49
with
current
limiter
integrated
into
the
M
TCO
(B525).
200440
2-21
Changes in the electrical system from chassis number 0L247507
5
CHANGES IN THE ELECTRICAL SYSTEM
LF45/55 series