DAF CF65, CF75, CF85 Series . Manual - part 580

10

37

1358030/26

EL001357

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103

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106

1208

1208

1208

4523

4523

4520

4521

1208

1208

4521

4520

1208

1207

1207

4522

4522

4524

4524

4525

1233

1207

1207

1207

4525

4521

4520

4520

4521

4525

1233

1233

4529

1233

1233

1208

1208

1208

1208

4527

4527

4526

4526

4528

4528

4529

D929

1010

1000

1010

1000

E044

10A

E033

15A

E034

15A

26/400

2

591

2

553

C695

4

19

8

591

6

553

5

553

6

591

5

591

4

591

3

591

17/401

7

591

8

553

4

553

3

553

7

553

35/401

C746

1

19

G029

30

85

86

87A

87

G028

30

85

86

87A

87

M

1

2

B004

G031

30

85

86

87A

87

G030

30

85

86

87A

87

M

1

2

B003

C743

2

53

4

1

II

0

I

C744

2

53

4

1

II

0

I

C745

2

53

4

1

II

0

I

200404



2-160

5

ELECTRICAL SYSTEM

Electrical system

CF65/75/85 series ≥0E621376

10

200404



2-161

Electrical system

5

ELECTRICAL SYSTEM

CF65/75/85 series ≥0E621376

10

38

MECHANICAL

LIFTING

GEAR

Manual

lifting

When

switch

C739

(mechanical

lifting

gear

switch)

is

operated

(connection

between

contacts

3

and

7),

a

voltage

is

applied

to

connection

point

1

of

B

071

through

fuse

E062,

wire

1221,

contacts

3

-

7

of

switch

C739,

wire

4550,

contacts

3

-

4

of

relay

G381

and

wire

5180.

This

valve

is

energised.

At

the

same

time

the

voltage

is

applied

to

connection

point

85

of

relay

G

052

through

D622,

wire

4552,

contacts

30

-

87a

of

relay

G

066,

wire

4557.

This

relay

is

activated

and

closes

contacts

1

-

2.

A

voltage

is

now

applied

to

connection

point

1

of

B

073

through

contacts

1

-

2

of

relay

G052,

wire

4554.

The

oil

pump

motor

starts

to

run.

If

the

oil

pressure

becomes

too

high

(>160

bar),

E524

will

close.

V

oltage

is

now

applied

to

connection

point

85

of

relay

G

066

through

contacts

1

-

2

of

E

524.

This

relay

is

energised

and

breaks

the

connection

30

-

87a.

V

oltage

is

now

applied

to

connection

point

85

of

relay

G066

from

wire

4552

through

contacts

30

-

87

of

relay

G

066

and

wire

4558.

This

relay

continues

to

be

activated.

At

the

same

time

the

voltage

through

relay

G

052

is

lost.

Contacts

1

-

2

open

and

the

voltage

on

connection

point

1

of

B

073

is

lost.

T

he

pump

motor

is

no

longer

driven

and

the

oil

pressure

drops.

Manual

lowering

When

switch

C739

(mechanical

lifting

gear

switch)

is

operated

(connection

between

contacts

3

and

1),

a

voltage

is

applied

to

connection

point

S1

of

D503

through

fuse

E062,

wire

1221,

contacts

3

-

1

of

switch

C739,

wire

4757,

through-connection

G745

and

wire

4551.

A

voltage

is

applied

to

connection

point

1

of

B

072

through

connection

point

87

of

D503,

wire

4553.

This

valve

is

energised.

At

the

same

time

the

voltage

is

applied

to

connection

point

85

of

relay

G

052

through

D623,

wire

4552,

contacts

30

-

87a

of

relay

G

066,

wire

4557.

This

relay

is

activated

and

closes

contacts

1

-

2.

A

voltage

is

now

applied

to

connection

point

1

of

B073

through

contacts

1

-

2

of

relay

G052,

wire

4554.

The

oil

pump

m

otor

starts

to

run.

If

the

oil

pressure

becomes

too

high

(>160

bar),

E524

will

close.

V

oltage

is

now

applied

to

connection

point

85

of

relay

G

066

through

contacts

1

-

2

of

E

524.

This

relay

is

energised

and

breaks

the

connection

30

-

87a.

V

oltage

is

now

applied

to

connection

point

85

of

relay

G066

from

wire

4552

through

contacts

30

-

87

of

relay

G

066

and

wire

4558.

This

relay

continues

to

be

activated.

At

the

same

time

the

voltage

through

relay

G

052

is

lost.

Contacts

1

-

2

open

and

the

voltage

on

connection

point

1

of

B

073

is

lost.

T

he

pump

motor

is

no

longer

driven

and

the

oil

pressure

drops.

Automatic

axle

load

p

rotection

If

th

ep

re

ss

ur

e

on

th

ed

riv

ena

xl

ei

sg

re

at

er

than

the

legal

maximum,

sensor

E584

is

activated.

This

puts

sensor

E507

in

‘stand-by’

mode.

If

the

permitted

axle

load

increases

further

(>

10

tons),

sensor

E507

automatically

lowers

the

trailing

axle.

If

the

axle

has

been

lifted,

F097

(proximity

switch

for

m

echanical

trailing

axle

lifting

gear)

ensures

that

relay

G

380

is

energised

through

wire

3661.

A

voltage

is

now

applied

through

fuse

E062,

wire

1221,

contacts

3

-

5

of

relay

G380

to

connection

point

1

of

E

507.

This

relay

is

activated.

The

voltage

is

immediately

transmitted

to

S

2

on

D503.

The

signal

sent

by

the

proximity

switch

for

axle

load

protection

(E507)

to

S2

should

last

for

at

least

10

seconds

before

the

electronic

unit

for

lifting

gear

(D503)

will

activate

the

valve

(B072)

and

the

lifting

gear

pump

m

otor

(B073),

so

that

the

trailing

axle

is

lowered.

This

is

to

prevent

the

legal

maximum

axle

load

from

being

exceeded.

If

the

dashboard

switch

is

operated

within

2.5

minutes,

the

electronic

unit

w

ill

be

reset

and

another

2.5

m

inute

period

w

ill

start.

200404



2-162

5

ELECTRICAL SYSTEM

Electrical system

CF65/75/85 series ≥0E621376

10

As

a

result,

the

m

echanical

lifting

gear

motor

relay

(G052)

will

also

be

activated,

thus

activating

the

m

echanical

lifting

gear

pump

(B073).

T

his

is

done

through

D623,

relay

G066

(connection

between

points

30

and

87a)

to

connection

point

85

of

relay

G

052.

When

a

pressure

of

160

bar

is

reached,

the

limit

switch

(E524)

switches

the

lifting-gear

pump

m

otor

(B073)

of

ft

hrough

relay

G

066

and

relay

G

052.

The

trailing

axle

cannot

be

lifted

for

a

period

of

2.5

m

inutes

as

the

valve

(B072)

remains

energised.

This

valve

should

be

in

the

non

-activated

position

for

lifting.

VARIANTS

Location 40

G745:

In

connector

882,

pin

20

there

is

a

w

ire,

4757.

In

the

other

side

there

is

w

ire

4551.

G745

is

formed

by

the

pin

connection.

200404



2-163

Electrical system

5

ELECTRICAL SYSTEM

CF65/75/85 series ≥0E621376