DAF CF65, CF75, CF85 Series . Manual — part 574
10
32
PT
O
‘REQUEST’
P
TO
1
(=
S
WITCH
O
N)
When
the
P
TO
operation
switch
(C750)
is
operated,
a
voltage
is
applied
to
connection
point
D27
of
D
900
(VIC)
through
fuse
E091,
wire
1240,
contacts
5
-
1
of
switch
C
750
and
wire
4594.
The
P
TO
can
also
be
switched
on
through
connection
point
11
of
A068
(engine
speed
control
application
connector).
This
means
that
a
‘request’
to
use
the
PT
O
has
been
made.
This
‘request’
is
implemented
depending
on
the
conditions
programmed
in
the
VIC.
A
condition
might
be
that
the
parking
brake
m
ust
be
engaged.
In
this
case,
a
voltage
is
applied
to
connection
point
1
of
parking
brake
switch
F000
through
fuse
E035,
wire
121
1.
If
parking
brake
switch
F
000
is
closed
(connection
between
contacts
1
and
2),
this
voltage
is
also
on
connection
point
B22
of
D
814
(UPEC
electronic
unit)
through
wire
3402
and
on
connection
point
D26
of
D
900
(VIC).
OPERA
T
ION
When
the
‘PT
O
request’
is
implemented,
the
following
takes
place:
A
voltage
is
applied
from
connection
point
B23
of
D
900
through
wire
4596
to
connection
point
1
of
B
245,
thereby
switching
on
the
P
TO
.
The
V
IC
checks
whether
the
P
TO
is
actually
switched
on.
This
takes
place
as
follows:
When
the
P
TO
has
been
switched
on,
F087
is
operated
mechanically
.C
ontacts
1
-
2
of
F
087
close.
Connection
point
B14
of
the
VIC
is
now
connected
to
earth.
T
he
VIC
then
sends
a
mes
sage
to
the
D
IP
and
the
“PT
O
ac
tiv
e”
warning
is
activated.
If
the
P
TO
does
NOT
switch
on,
F087
is
NOT
operated
and
connection
point
B14
of
the
VIC
is
NOT
connected
to
earth.
A
fter
a
period
of
time
programmed
in
the
VIC,
a
‘message’
is
sent
to
the
D
IP
and
the
“PT
O
fault”
warning
symbol
is
activated.
‘CANCEL
’PT
O
1
(=
SWITCH
OFF)
Breaking
contacts
5
-
1
of
C
750
switches
the
PT
O
of
f.
T
his
interrupts
the
voltage
from
connection
point
D27
to
D
900
(VIC).
One
of
the
switch-on
conditions
for
operation
of
the
PT
O
is
now
absent.
T
he
VIC
responds
to
this
by
also
removing
the
voltage
from
connection
point
B23,
causing
the
voltage
at
connection
point
1
of
B
245
to
be
lost.
T
he
valve
is
no
longer
energised
and
the
P
TO
is
switched
of
f.
‘REQUEST’
P
TO
2
(=
S
WITCH
O
N)
When
the
P
TO
operation
switch
(C751)
is
operated,
a
voltage
is
applied
to
connection
point
D22
of
D
900
(VIC)
through
fuse
E091,
wire
1240,
contacts
5
-
1
of
switch
C
750
and
wire
5241.
This
means
that
a
‘request’
to
use
the
P
TO
has
been
made.
This
‘request’
is
implemented
depending
on
the
conditions
programmed
in
the
VIC.
A
condition
might
be
that
the
parking
brake
m
ust
be
engaged.
In
this
case,
a
voltage
is
applied
to
connection
point
1
of
parking
brake
switch
F000
through
fuse
E035,
wire
121
1.
If
parking
brake
switch
F
000
is
closed
(connection
between
contacts
1
and
2),
this
voltage
is
also
on
connection
point
B22
of
D
814
(UPEC
electronic
unit)
through
wire
3402
and
on
connection
point
D26
of
D
900
(VIC).
200404
2-136
5
ELECTRICAL SYSTEM
Electrical system
CF65/75/85 series ≥0E621376
10
OPERA
T
ION
When
the
‘PT
O
request’
is
implemented,
the
following
takes
place:
A
voltage
is
applied
from
connection
point
C46
of
D
900
to
connection
point
1
of
E
570
(clutch
-
PT
O
N
10
proximity
switch)
(if
present)
and
to
connection
point
3
of
relay
G259
(PT
O
operation
takeover
relay)
(if
present)
through
wire
4595.
When
switch
E570
is
operated
by
depressing
the
clutch
pedal
(connection
between
contacts
1
and
2),
a
voltage
is
applied
to
connection
point
1
of
relay
G
259
through
wire
4595
and
to
connection
point
1
of
B
245
(PT
O
control
valve).
R
elay
G259
is
energised
and,
as
a
result,
a
connection
is
made
between
contacts
3
and
5
of
relay
G259.
Relay
G
259
now
remains
energised
irrespective
of
E570
(this
is
a
‘memory’
function).
B
246
is
also
activated
and
this
switches
the
P
TO
on.
The
V
IC
checks
whether
the
P
TO
is
actually
switched
on.
This
takes
place
as
follows:
When
the
P
TO
has
been
switched
on,
F088
is
operated
mechanically
.C
ontacts
1
-
2
of
F
088
close.
Connection
point
B1
1
of
the
VIC
is
now
connected
to
earth.
T
he
VIC
then
sends
a
mes
sage
to
the
D
IP
and
the
“PT
O
ac
tiv
e”
warning
is
activated.
If
the
P
TO
does
NOT
switch
on,
F088
is
NOT
operated
and
connection
point
B1
1
of
the
VIC
is
NOT
connected
to
earth.
A
fter
a
period
of
time
programmed
in
the
VIC,
a
‘message’
is
sent
to
the
D
IP
and
the
“PT
O
fault”
warning
symbol
is
activated.
‘CANCEL
’PT
O
2
(=
SWITCH
OFF)
Breaking
contacts
5
-
1
of
C
751
switches
the
PT
O
of
f.
T
his
interrupts
the
voltage
from
connection
point
D22
to
D
900
(VIC).
One
of
the
switch-on
conditions
for
operation
of
the
PT
O
is
now
absent.
T
he
VIC
responds
to
this
by
removing
the
voltage
on
connection
point
C46
as
w
ell.
The
voltage
on
relay
G
259
is
interrupted
and,
as
a
result,
the
coil
is
no
longer
energised.
Contacts
5
-
3
open
and,
as
a
result,
the
voltage
on
connection
point
1
of
B246
is
lost.
T
he
valve
is
no
longer
energised
and
the
P
TO
is
switched
of
f.
VARIANTS
Location 9
C
onnector
A
068:
optional.
35
DVB:
in
wiring
harness
above
P
CB
if
there
is
NO
clut
ch
P
TO
N
10
proximity
switch.
21,
24,
25,
31,
41:
Connector
626:
for
m
anual
gearbox.
Connector
699:
for
A
S
Tronic.
Connector
577
for
A
GC.
200404
2-137
Electrical system
5
ELECTRICAL SYSTEM
CF65/75/85 series ≥0E621376
10
32
1358030/26
EL001348
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
1240
1240
1240
1240
4595
4595
4595
1240
1240
4595
4595
4595
4594
4594
5241
4594
4594
4594
4595
4595
4594
1240
5241
4596
4596
4595
4595
4595
4595
4596
4596
3668
3668
3668
3668
4595
1211
1211
4595
1211
3402
9999
9127
9127
9127
3402
4594
3410
3410
3410
5241
3402
5241
1240
18/400
1
564
3
564
11
588
DVB
DVB
C750
5
71
0I
4
564
17
626
1
626
5
650
C751
5
71
0I
A068
11
!
!
!
2
1
B245
2
1
B246
F088
2
1
4
650
!
!
!
3
650
2
650
16
626
!
E570
1
2
P
33/403
7
914
D929
E091
15A
1010
1000
1010
1000
E035
10A
F000
2
1
P
D814 B22
11
D705
4
42
D703
1
42
15
626
1
650
F087
2
1
C46/
594
B23/
593
B11/
593
D26/
595
D22/
595
D27/
595
E5/
596
A5/
592
D900
B14/
593
626
18
5
4
3
1
2
G259
200404
2-138
5
ELECTRICAL SYSTEM
Electrical system
CF65/75/85 series ≥0E621376
10
33
ROOF
SPOTLIGHTS/COOLER
BOX/ROT
A
TING
BEAMS
ROOF
SPOTLIGHTS
Marker/parking
lights
in
roof
spotlights
A
voltage
is
applied
to
connection
point
2
of
C622
(lighting
switch)
via
fuse
E
084
and
wire
1101.
When
this
switch
is
operated
(connection
between
contacts
2
and
1),
voltage
is
applied
to
connection
point
85
of
relay
G
000
(tail
light/width
marker
light
relay)
via
w
ire
2100.
This
relay
is
activated.
A
voltage
is
now
applied
through
contacts
30
-
87
of
relay
G000,
fuse
E000
and
wire
2102
to
C163,
C165,
C167
and
C169
(width
marker
light
in
roof
spotlights).
T
he
marker
and
parking
lights
in
the
spotlights
now
come
on.
Roof
spotlights
A
voltage
is
applied
to
connection
point
A8
of
C832
(direction
indicator/windscreen
wiper
stalk
switch)
via
fuse
E
084
and
wire
1101.
When
this
switch
is
operated
(connection
between
contacts
A8
and
A9),
voltage
is
applied
to
connection
point
85
of
relay
G
002
(main
beam
relay)
via
w
ire
2120.
This
relay
is
activated.
A
voltage
is
now
applied
through
contacts
30
-
87
of
relay
G002,
fuse
E006
and
wire
2122
to
C002
(left
m
ain
beam)
and
connection
point
6
of
C
813
(roof
spotlights
swit
ch).
When
this
switch
is
closed
(connection
between
contacts
6
and
2),
voltage
is
also
applied
to
connection
point
85
of
G299
(roof
spotlights
relay).
This
relay
is
activated.
A
voltage
is
now
applied
through
fuse
E142,
wire
1154,
contacts
30
-
87
of
G
299
and
wire
2135
to
connection
point
1
of
C
162,
C164,
C166
and
C168
(roof
spotlights).
T
he
spotlights
w
ill
now
light
up.
COOLER
BOX
The
cooler
box
is
connected
to
voltage
BEFORE
contact.
V
oltage
is
applied
to
connection
point
1
of
B
356
(cooler
box)
from
fuse
E142
via
w
ire
1154.
ROT
A
TING
BEAMS
The
rotating
beams
are
connected
to
voltage
BEFORE
contact.
V
oltage
is
applied
to
connection
point
6
of
C
716
(rotating
beams
switch)
from
fuse
E
142
via
w
ire
1154.
When
the
switch
is
closed
(connection
between
contacts
6
and
2),
voltage
is
applied
to
C
144
(left
rotating
beam)
and
C145
(right
rotating
beam)
via
wire
2017.
These
rotating
beams
will
now
light
up.
Switch
C716
may
be
replaced
by
C715.
200404
2-139
Electrical system
5
ELECTRICAL SYSTEM
CF65/75/85 series ≥0E621376
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