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DYNAPAC Paver finisher F 121 C, F 141 C Type 635. Operation & Maintenance (Order number: 4812026925) - page 4

2.5

Special functions

Emergency operation program for the case of keyboard failure

To ensure the pavers operating ability during a display failure, an emergency program

will be started automatically.

Following setting and functions will be

max min^-1

adjusted and switched on:

- Number of revolutions of the Diesel

engine: 1800 min^-1

- Traction drive (1) slow (Tortoise)

- Operating main switch (2) OFF

- Tamper (3) switched on

- Vibration (4) switched on

Connected functions will not be indicat-

2

1

m

ed by LED during a display failure!

Tamper and vibration can be deactivat-

A

ed by the associated rotary potentiome-

ter (set to „zero“).

3

The frequency of the tamper and vibra-

tion can be read off the two associated

4

displays (O).

Deutz2013L06.tif,RPM.tif,Element1_SPS_Kette_635.wmf

D 2.0 35

Accessory the following function can be

switched by using the remote controls:

- Press button (1) to close the hopper.

3

- Press button (2) to open the hopper.

- Lifting the screed:

- Switch off the LED bar (3) of auger

and conveyor completely by using

the accompanying Minus-buttons

4

(4).

- Lift the screed infinitely variable by

using both Minus-buttons(4) simulta-

1

neously.

- Switching the screed into readiness

2

5

(floating position):

- Switch the LED bar (3) of auger and

Remote_SPS_neu1.cdr

conveyor completely on by using the

accompanying Plus-buttons (5).

- Switch the screed into floating position by pressing both Plus-buttons (5) simulta-

neously.

The screed sinks immediately.

m

To lift the screed out of floating position, the LED bar of auger and conveyor must be

A

deleted again.

Reversible conveyor

16

The direction of transport of the convey-

or can be changed over to the opposite

direction to move material located just in

front of the auger back slightly. Material

losses, e.g. during transport operations

can therefore be avoided.

- Switch main function switch (16) over

to „Off“ switch position (LED off).

32

- Hold down one or both of the buttons

(32) in the „STOP“ switch position for

approx. 5 seconds.

The system jumps into the „Manual“

switch position and the conveyor

moves approx. 1 metre towards the

hopper. The system then jumps back

Element1_SPS_Kette_635.wmf

into the „Stop“ switch position.

If necessary, this process can be repeated as many times as required to allow the

conveyor to move further in the opposite direction.

D 2.0 36

D 3.1

Operation

1

Operating elements on the paver finisher

Batteries (71)

The batteries of the 24 V system are lo-

cated under the left maintenance flap.

For the specifications, refer to chapter B,

A

”Technical Data”.

For servicing, see chapter F.

Heed the instructions when starting the

m

paver finisher externally.

(see section

“Starting the paver finisher, External

starting (starting aid)“).

71

Tankhood_LH.eps

Battery main switch (72)

The main switch interrupting the circuit

between the battery and the main fuse is

located under the left maintenance flap.

For the assignment of all fuses, see

A

chapter F.

- For switching off, turn the key (72) to

the left and pull it out.

Do not lose the key as in this case the

A

72

paver finisher can no longer be moved!

Tankhood_LH.eps

72

F0077_A1.EPS/F0078_A1.EPS

D 3.1 1

Transport safeguards for the hopper (73)

Before parking or transporting the paver

finisher, the hopper halves must be

swung upwards and the transport safe-

a

guards for the hopper must be inserted.

Item:

-

(a) - outside on the two half-hoppers

or

-

(b) - in the feeding hopper (o)

f Do not enter the hopper while the engine

is running! Danger of being caught by

the conveyor!

(o)

Without transport safeguards inserted,

b

the hopper halves will slowly open; dan-

ger during transportation!

Hopperlock2.tif/Hopperlock_SK.eps

D 3.1 2

Mechanical screed transport safe-

guard (to the left and the right be-

74

neath the driver’s seat) (74)

Used to protect the lifted screed from in-

advertent lowering. The screed transport

safeguard must be inserted before trans-

portation and when work is finished.

f Transportation with an unsecured

screed bears the danger of accidents!

F0083_A1.TIF

- Lift the screed.

- Actuate the levers.

- Check that the latches (to the left and to the right) engage in the crossbeams.

m ATTENTION!

Insert screed lock only at crown adjustment „zero“! Screed lock only for transportation

Use the interlocking of the main girder for transportation only!

Do not enter or work under screed only secured with screed lock for transportation!

Danger of accident!

Seat lock (behind the driver’s seat)

(75)

Telescoping seats (o) can be extended

beyond the basic width of the paver fin-

75

isher. They must be locked.

f The seats must not protrude from the ve-

hicle during transportation. Push the

seats back to the basic width of the pav-

F0169_A1.EPS

er finisher!

- Pull out the locking button and move the seat; let the locking button engage again.

f The driver’s seat can move when the locking button is not engaged properly. Danger

of accidents during transportation!

D 3.1 3

Separator fluid spraying system (80)

(o)

(o)

Used to spray the parts coming into con-

tact with asphalt with a separator emul-

sion.

- The indicator lamp (A) lights up when

the emulsion pump is running

- On/off switch

(B) for the emulsion

pump

- Quick-release coupling (C) for hose

connection

A

B

C

Only switch on the spraying system

m

when the diesel engine is running; other-

Emu2.tif

wise, the battery will be discharged.

Switch off after use.

A permanent installed hose guide (D) for

A

(o)

the fluid spraying system is available as

an option.

Pull hose out of the guide till there is an

audible creak. The hose will engage in

D

this position after discharging.The hose

will be retracted automatic into the guide

after pulling and discharging again.

Don’t spray into open flame or on hot

f

surface! Danger of explosion!

Emul1.Tif

A The spraying system is feeded by a can

(o)

(E) under the side flap on R.H. side.

f Refill the can only while standstill of the

paver finisher!

E

Emu3.tiff

D 3.1 4

Further switch options for optional

A

equipment features may be located on

(o)

the central panel:

85

On / off switch for additional head-

light in the roof (85):

Actuate switch (a) to activate.

a

On / off switch for fuel tank filler

pump (85a)

85a

If the pump is actuated with the switch

(a), the indicator lamp (b) lights up.

When fuelling, ensure that no fuel pene-

f

b

a

trates the earth. Switch off the engine

and do not smoke. Do not fuel in en-

closed spaces. Danger to health! Have a

fire extinguisher ready.

85b

On / off switch special lighting (85b)

If the machine is equipped with addition-

b

a

al headlights, these are actuated by

means of the switch (a). When switched

to the „ON“ position, the indicator lamp

(b) lights up.

85c

Switch the additional headlights and

m

special lighting off when the engine is

not running, as the battery is otherwise

discharged!

b

a

On/Off switch

Exhaust of asphalt vapours (85c)

85d

In case of the availability of optional as-

phalt vapour exhaust system, this can

be turned on by switch (a).

In the switch position „ON“ the control

b

a

light (b) is on.

85e

b

a

D 3.1 5

On/Off switch of work headlights (85d):

Actuate switch (a) to switch on.

In the switch position „ON“ the control light (b) is on.

On/Off switch of flasher (85e):

Actuate switch (a) to switch on.

In the switch position „ON“ the control light (b) is on.

A If the optionally available 230 V systems

(o)

is installed, an additional switch cabinet

is mounted on the paver finisher:

85f

230 V On / Off switch

Connection sockets (85f)

In case of being equipped with 230 V ac-

cessories, the connection sockets can

b

a

be powered through switches (a). In the

switch position „I“ the control light (b) is

Schalt_230V.wmf

on.

Locking of the collapsible roof (LH

and RH on the roofs console) (86):

To lower the roof (for example during

transport on a low bed trailer):

A

- Loose the twistlock (A)

- Pull the roof frame forward holding the

clevis or the frame

- Arrest the twistlock in the second lock-

ing hole.

Dachkons.bmp

D 3.1 6

Hydraulic folding roof (87) (o)

The hydraulically folding roof is secured

by means of a latch (A) at the rear sus-

pension on the left and right sides of the

machine. This must be released prior to

A

lowering and raising. Once it has

reached its terminal position, the roof

must be secured with the latch again.

The hydraulic unit and the key-operated

switch (A) for actuating the folding roof

hydraulic system are located on the left

side of the paver finisher's rear panel.

The roof can be raised and lowered with-

D

A

out having to start the drive motor.

C

- In order to lower the roof, turn the key-

operated switch (B) to the right until

the roof has been lowered to its mini-

mum level.

E

Danger of crushing! Ensure that nobody

f

inserts their fingers or hands into the

joint areas or are placed at risk by the

lowering roof during the folding proce-

dure.

B

- In order to raise the roof again, turn

the key-operated switch (B) to the left

Dachkons.bmp/Dach_Hydr.wmf

until the roof has been raised to its

maximum height.

If it is necessary to raise the roof whilst the battery is discharged, a manual pump is

available on the hydraulic unit.

- Actuate the pump lever (C) until the roof can be secured with the latch bolt (A) in its

uppermost position.

Two throttles are installed to adjust the raising and lowering speed:

- Throttle valve (D): Adjust roof raising speed.

Turning the adjusting knob in the clockwise direction = lower speed.

Turning anti-clockwise = higher speed.

- Throttle valve (E): Adjust roof lowering speed.

Turning the adjusting knob in the clockwise direction = lower speed.

Turning anti-clockwise = higher speed.

D 3.1 7

Electric setting of the transportation

(o)

volume of the conveyor (o) (88)

With this the transport volume of the

conveyor can be adjusted when me-

88a

chanical limit switch or ultrasonic sensor

is used.

- The „0“ position of the scale corre-

sponds to the smallest adjustable vol-

ume.

85d

- RH-side conveyor: (88a)

- LH-side conveyor: (88b)

88b

F0091_A1.EPS

D 3.1 8

Conveyor limit switches (89)

The mechanical conveyor limit switches

(89) or the ultrasonic conveyor limit

switches

(89ao) control the material

flow at the respective conveyor half.

The conveyors should stop when the

material has roughly reached the area

below the auger tube.

A This requires that the auger height has

been adjusted correctly (see chapter E).

89

89a

F0114_A1.EPS/Ultra3.EPS

D 3.1 9

Ultrasonic auger limit switches (90)

(left and right)

A The limit switches control the material

flow at the respective auger half.

90

The ultrasonic sensor is mounted by

means of an appropriate leverage to the

side plate. Loose clamping lever for ad-

justment and modify angle / height of the

sensor.

The cables must be connected to the re-

mote control units located at the sides of

the screed (socket (62)).

Ultra_Auger.bmp

A We recommend to adjust the limit switch

positions while the material is distributed.

Sockets for working lights (left and

right) (92)

Connect the working lights (24 V) here.

- Power is present when the main

switch (72) is switched on.

A As an option, one socket can be used to

provide power for an electrically heated

92

seat.

F0124_A1.TIF

D 3.1 10

Pressure control valve for screed

charging/relieving (93)

93b

93

Used to adjust the pressure for addition-

al charging/relieving of the screed.

93a

- See

”screed charging/relieving de-

vice”.

(Chapters „Operating Panel“, „Opera-

tion“).

- Pressure display: see pressure gauge

(93b).

Pressure control valve for screed

stop with pretensioning (93a)

93

93a

This valve is located beneath the right-

hand bottom flap of the operator´s plat-

form.

It is used to adjust the pressure for

”screed stop with pretensioning”.

- Activation: see

“screed charging/re-

lieving device” (34).

- Pressure display: see

“pressure

gauge” (93b).

93b

Pressure gauge for screed charging/

relieving and screed stop with preten-

sioning (93b)

Displays the pressure for

F0184_A1.TIF/Screed_Valve.eps/F0105_A1.TIF

- Screed stop with pretensioning screed

stop with pretensioning when the drive lever is set to the neutral position (pressure

to be adjusted using valve (93a));

Screed charging/relieving device when the drive lever is in the third position (pressure

to be adjusted using valve (93)).

D 3.1 11

Central lubrication unit (o) (100)

The central lubrication unit turns on in

automatic mode when the drive engine

starts.

- Pumping time:

12 min

- Duration of the break:

2 h

It is prohibited to change the factory-set

a

m

durations of pumping and break without

consulting the technical customer serv-

ice!

Changing the duration of lubrication and

A

breaks may be necessary when placing

mineral or cement bound material mix.

Manual start of lubrication (pumping

b

time):

Lincoln3.jpg/Lincoln9.jpg

- Remove the cover lid (a).

- Keep the starting button (b) depressed for at least 2 sec.

- Replace the cover lid (a).

Observe the instructions of chapter „Maintenance“!

A

Track cleaner (o) (101)

Movable track cleaners (a) are fitted be-

fore the two front crawler tracks, which

divert the small obstacles to the side.

The track cleaners may be in folded

A

down position only while paving.

a

Tilting of the track cleaner:

- Remove the safety pin (b) and the bol-

ster.

- Set the track cleaner (a) to the re-

quired position and lock again with the

bolster and the safety pin.

b

Rockdeflec.eps

D 3.1 12

Particle filter - control light (102) (o)

A The control light of the particle filter is

found under the control track of the oper-

ating panel.

a

When observing the control light (a) it is

essential:

Partikellight.tif

Indicator

Operating condition

Cause / action

colour

No counterpressure Check the

yellow

No counterpressure

tightness of the system.

green

Within the measuring range

There is no fault

Treshold range -

Increase of engine speed to raise

flashing

Counterpressure in the

the temperature of the exhaust

green

warning range

fume.

Increase of engine speed to raise

Set value achieved /

the temperature of the exhaust

red

exceeded

fume. If necessary, clean / replace

the particle filter.

The temperature or pressure

Check and replace, as required,

flashing red

sensor failed

the temperature / pressure sensor

With the brief increase of the engine speed to the max. range, the filter is cleaned au-

A

tomatically due to the higher temperature of the exhaust fume.

If the control light still fails to turn on for this action, the filter needs to be cleaned.

See chapter „Maintenance“ for cleaning the particle filter.

D 3.1 13

Front and side window (o) (103)

(o)

The front window can be folded up for

the maintenance works performed at the

tank.

D

- Fold the front window by its handle (A)

and lock it on the RH and LH sides

with the two locks (B) in the upper po-

C

sition.

A

Additional functions:

B

- If necessary, turn on the windscreen

wipers on the RH and LH sides (C).

- Fold up the side window (D) at its cle-

Wetterhaus.eps

vis (window frame) and the push the

driver's seat out.

D 3.1 14

Adjustment of screed eccentric (o)

(o)

(104)

C

To pave thicker layers of material, if the

piston rods in the levelling cylinder are

operating close to their limit position and

III

II

if the desired paving thickness cannot be

I

reached, it is possible to alter the ap-

proach angle of the screen by adjusting

the eccentric.

- Pos I:

Paving thickness of up

B

to approx. 7cm

- Pos II: Paving thickness of approx.

A

7 cm to approx. 14cm

- Pos III: Paving thickness above

Wetterhaus.eps

approx. 14 cm

- The spindle (A) is not adjusted.

- Unfasten lock nuts (B) for eccentric adjustment.

- Swivel screed into desired position using lever (C) then engage the locking knob

once again.

If the levelling unit is connected to a height controller, this has the function of balanc-

A

ing out any rapid rise in the screed position: The levelling cylinders are extended until

the correct height is reached.

The change in approach angle can only take place slowly and uniformly on both sides

A

at once during paving operation, and involves the use of the eccentric adjustment.

Failing this, any rapid response in the screed could easily cause waves to appear on

the road surface.

The setting process should therefore take place before work starts!

D 3.1 15

Checklist for the machine operator

Check!

How?

Emergency stop button

Push in the button.

- on the operating panel

The diesel engine and all running drives

- on both remote control units o

must stop immediately.

The paver finisher must immediately fol-

Steering

low every steering wheel movement in a

precise manner. Check straight running.

Horn

Briefly press the horn button.

- on the operating panel

The horn must sound.

- on both remote control units o

Switch on with the ignition key, walk

Lights

around the paver finisher to check and

switch off again.

With the ignition switched on, press the

Hazard warning lights of the screed

switches for extending/retracting the

(with vario screeds)

screed parts.

The rear lights must flash.

Gas heater system (o):

Check:

- Bottle holders

- Secure seat

- Bottle valves

- Cleanliness and tightness

- Pressure reducer

- Working pressure 1.5 bar

- Hose break safety devices

- Function

- Shut-off valves

- Function

- Main shut-off valve

- Function

- Connections

- Tightness

- Indicator lamps of the switch box

- All lamps must light up when the

system is switched on

D4.1 2

1.1

Starting the paver finisher

Before starting the paver finisher

Before starting the diesel engine and beginning operation, the following steps must

be performed:

- Daily maintenance of the paver finisher (see chapter F)

m Check the operating hour counter to determine whether or not additional mainte-

nance work (such as monthly or yearly maintenance) must be performed.

- Check the safety devices and protective devices.

„Normal” starting

Set the drive lever (9) to the center posi-

7

5

tion and the speed adjuster (10) to mini-

mum.

11

- Insert the ignition key (5) in position

„0”. The lights should be switched off

during starting to reduce the current

drain on the battery.

9

10

A It is impossible to start the machine, if

the drive lever is not in the central posi-

tion or if one of the emergency stop but-

tons (7) is depressed.

Element2_SPS_Kette_635.wmf

(“STOP“ is seen on the LC display)

- Press the starter button (11) to start the engine. Do not let the starter run perma-

nently for more than 20 seconds; allow for a break of 1 minute after every attempt.

D4.1 4

External starting (starting aid)

The engine can be started with the help of an external power source if the batteries

A

are empty and the starter no longer turns.

Suitable power sources are:

- Other vehicles with a 24 V system

- Additional 24 V battery

- Start device that is suitable for external starting (24 V/90 A).

Standard chargers or quick chargers cannot be used for external starting.

m

To externally start the engine:

- Switch on the ignition, set the drive le-

7

5

ver (9) to the center position.

- Use appropriate cables to connect the

external power source.

11

Observe the polarity! Always connect

m

the negative cable last and disconnect it

first!

9

10

It is impossible to start the machine, if

A

the drive lever is not in the central posi-

tion or if one of the emergency stop but-

tons (7) is depressed.

Element2_SPS_Kette_635.wmf

(“STOP“ is seen on the LC display)

- Press the starter button (11) to start the engine. Do not let the starter run perma-

nently for more than 20 seconds; allow for a break of 1 minute after every attempt!

When the engine is running:

- Disconnect the power source.

D4.1 5

After starting

To increase the engine speed:

- Set the drive lever (9) to position 1

(slightly off the center position).

- Increase the engine speed by press-

ing button (21) on the operating panel.

The engine speed will be increased to

9

the preselected value.

m Let the paver finisher warm up for ca. 5

minutes if the engine is cold.

Indicator lamps

The following indicator lamps must be

21

observed under all circumstances:

For further possible faults, refer to the

operating instructions for the engine.

Element2_SPS_Kette_635.wmf/Element1_SPS_Kette_635.wmf

D4.1 6

Oil pressure indicator lamp for the

traction drive (46)

- Must go out after starting.

If the lamp does not go out: Do not

m

46

switch on the traction drive! Otherwise,

Leuchtmodul_SPS_Kette_635.bmp

the entire hydraulic system could be

damaged.

When the hydraulic oil is cold:

- Set the conveyor switch (32) to „man-

ual” and the auger switch (24) to „au-

to“.

- The remote control has to be connect-

ed and the same function have to be

set to „auto“

- Set the drive lever (9) to position 1

- Press button (21) to increase the en-

gine speed, the conveyor and the au-

ger start operating.

- Let the hydraulics warm up until the in-

dicator lamp goes out.

9

The lamp goes out when the pressure

A

drops below 2.8 bar = 40 psi.

For further possible malfunctions, refer

to section 4.

21

32

21

Element2_SPS_Kette_635.wmf/Element1_SPS_Kette_635.wmf

D4.1 7

Battery charge indicator (49).

Must go out after starting when the en-

gine revs up.

49

m Briefly rev up the engine when the lamp

Leuchtmodul_SPS_Kette_635.bmp

does not go out or lights up during oper-

ation.

Switch off the engine and determine the cause for the malfunction if the lamp does

not go out.

For further possible malfunctions, refer to the section „Malfunctions”.

D4.1 8

1.2

Operation in case of transportation

Lifting and securing the screed

- Button (16) has to be switched off

- Switch off the buttons (34) and lift the

screed full by using button (33).

- Extend the levelling cylinders full by

using the buttons (25) and (27).

The remote control has to be connect-

16

ed and the same function has to be set

to „manual“.

- Lift the auger crossbeam by using the

33

buttons (28) and (27).

34

- Insert the screed transport safeguards

(74).

27

25

28

74

Element1_SPS_Kette_635.wmf/F0083_A1.TIF

D4.1 9

Driving and stopping the paver

finisher

- Set the Fast/Slow switch

(17) to

„Hare”.

- Set the preselector traction drive (10)

to mark 10

- For driving, carefully tilt the drive lever

7

(9) forward or backward according to

5

the drive direction desired.

f In case of an emergency, press the

emergency stop button (7)!

- To stop the paver finisher, set the

9

drive lever (9) to the center position.

10

Switching off and securing the paver

finisher

- Turn the ignition key (5) to the „0” po-

17

sition and pull it out to switch off the

engine.

m The battery can get exhausted if the pav-

er finisher is standing still for longer peri-

ods of time with the ignition switched on.

- Lower the screed.

Element2_SPS_Kette_635.wmf/Element1_SPS_Kette_635.wmf

D4.1 10

1.3

Preparations for paving

Separating agent

Spray the parts coming into contact with

asphalt

(hopper, screed, auger, push

roller) with a separator emulsion.

m Do not use diesel fuel as it dissolves the

bitumen (prohibited in Germany!).

F0147_A1.TIF

Screed heater

Switch on the screed heater ca. 15-30 minutes (depending on the ambient tempera-

ture) before paving begins. Warming up prevents the material from sticking to the

screed plates.

D4.1 11

Direction marks

To ensure straight paving, a direction

mark must be present or established

(road edge, chalk lines or similar).

- Slide the operating panel to the de-

sired side and secure it.

- Pull the direction indicator out of the

bumper (arrow) and adjust it accord-

Stossstange.bmp

ingly.

Loading/distributing material

- Button (16) has to be switched off.

- Use switch (13) to open the hopper.

Instruct the truck driver to dump the

material.

- Set the switches for the auger (24) and

the conveyor (32) to „auto”.

16

15

- Press button (15) to fill the machine for

13

paving.

32

24

Element1_SPS_Kette_635.wmf/F0083_A1.TIF

D4.1 12

- Switch the conveyors on.

The limit switches for the conveyors

(89) or (89ao) must switch off when

the material has reached the area be-

neath the auger crossbeam.

- Check that the material is conveyed

properly.

Manually switch on or off the conveyor

if the material is not conveyed properly

until a sufficient amount of material

lies in front of the screed.

89

89a

F0114_A1.EPS/Ultra3.EPS

D4.1 13

1.4

Starting for paving

17

20

33

23

32

24

9

10

51

A

54

56

B

Element2_SPS_Kette_635.wmf/Element1_SPS_Kette_635.wmfr/Tamprev.cdr/Vibrev.cdr/Remote_SPS_neu1cdr

D4.1 14

Set the switches, levers and controls listed below to the specified positions when the

screed has reached its operating temperature and a sufficient amount of material lies

in front of the screed:

Item

Switch

Position

17

Traction drive fast/slow

Tortoise-operating speed

10

Preselector traction drive

Mark 6-7

Preparation for screed floating

33

LED ON

position

23

Vibration

LED ON

20o

Tamper

LED ON

24/56

Auger left/right

Auto

32/54

Conveyor left/right

Auto

51

Levelling

Auto

A

Speed regulator, vibration

ca. mark 40-60

B

Speed regulator, tamper

ca. mark 40-60

- Push the drive lever (9) all the way to the front and start driving.Screed floating po-

sition is activated now.

- Observe the distribution of the material and adjust the limit switches if necessary.

- Set the compacting elements (tamper and/or vibration) according to the required

compaction ratio.

- Let the paving master check the layer thickness after 5-6 meters and correct if nec-

essary.

Carry out the check in the area of the drive chains or wheels as the screed tends to

level an uneven ground. The reference points for the layer thickness are the drive

chains or wheels.

The basic setting of the screed must be corrected when the actual layer thickness de-

viates significantly from the values indicated by the scales (see the operating instruc-

tions for the screed).

The basic setting is for asphalt material.

A

D4.1 15

Screed charging/relieving

This function charges or relieves the screed regardless of its own dead weight.

Switch (34) has the following positions:

A

A: Relieving (screed ‘lighter’)

34

B: Charging (screed ‘heavier’)

B

Switch positions

„Screed charging/re-

lieving” are only effective when the pav-

Screedswitch2a.bmp

er finisher moves. When the paver

finisher stops, „screed stop” is automati-

cally selected.

D4.1 17

Screed stop with prestressing

When „stopping the screed“ the relieving

pressure and the counterpressure of the

A

A

material will provide retention so that the

34

33

sinking of the screed is avoided when a

temporary stop occurs.

B

B

- Automatic screed stop when the drive

Screedswitch2a.bmp

lever is in the center position

- To lift the screed press button (33A).

- Lowering of the screed:

- Resting function: Keep the button (33B) depressed for more than 1.5 sec. As long

as you keep the button depressed, the screed will be lowered. When the button

is released, the screed will stop again.

- Button function: Press button (33B) briefly - the screed will lower again. Press the

button briefly again - the screed will stop.

In case of transportation or maintenance operations always insert the mechanical

m

transportation safeguard of the screed.

As for charging/relieving, a pressure of 2-50 bar can be individually applied to the

screed lifting cylinders. This pressure can neutralize the weight of the screed to pre-

vent the screed from sinking into the freshly laid material, thus supporting the screed

stop function, especially in those situation where the screed relieving function is used.

The pressure to be applied depends on the load-bearing capacity of the material. If

necessary, the pressure must be readjusted or changed as required during the first

stops until the lower edge of the screed no longer leaves any marks when the paver

finisher moves on again.

A pressure greater than 10-15 bar neutralizes the screed weight, thus preventing the

screed from sinking into the material.

When combining the ”screed stop” and ”screed relieving” functions, make sure that

A

the pressure difference between the two functions does not exceed 10-15 bar.

Especially in those cases where the ”screed relieving” function is only briefly used as

a start-up aid, there is a danger of uncontrolled floating when starting up again.

D4.1 18

Adjusting the pressure (o)

7

Pressure adjustments can only be made

5

while the diesel engine is running.

Therefore:

- Start the diesel engine and set the

traction controller (10) to zero (precau-

tion against inadvertent advancing).

- Set switch (33) to the floating position.

9

10

Screed stop (with prestressing):

- Set the drive lever (9) to the center po-

sition.

- Set switch (16) to position (LED OFF)

16

and switch (21) to position (LED OFF).

33

21

- Use control valve

(93a)

(below the

bottom plate of the operator´s plat-

form) to adjust the pressure and read

34

it from the pressure gauge (93c).

(Basic setting: 20 bar)

Element2_SPS_Kette_635.wmf/Element1_SPS_Kette_635.wmf

For screed charging/relieving:

93c

- Set the drive lever (9) to the center po-

sition.

- Set switch (16) to position (LED OFF)

and switch (21) to position (LED ON).

- Set switch (34) to position (LED ON)

(relieving 34a) or (charging 34b).

- Set the pressure with the regulator

valve (93b) (under the bottom plate of

the operating position), and read it on

the pressure gauge (93c).

93b

When screed charging/relieving is nec-

93a

A

essary and automatic levelling is used

(grade control and/or slope control), the

compacting performance changes (layer

thickness)

The pressure can also be set or correct-

A

ed during paving. (max. 50 bar)

F0103_A1.EPS/Screedvalve.eps

D4.1 19

1.7

Interrupting/terminating operation

During breaks: (e.g. the material supply

truck is late)

- Determine the approximate duration.

- When cooling down of the material be-

low the minimum paving temperature

must be expected, run the paver fin-

isher empty and create an edge like

the end of a layer.

- Set the drive lever (9) to the center po-

9

10

sition.

Element2_SPS_Kette_635.wmf

During extended interruptions (e.g. lunch break)

- Drive lever (9) into centre position, RPM speed adjustment (10) to minimum posi-

tion.

- Switch off ignition.

- Switch off screed heater (system).

- When screed is operated with the optional gas heating system, close the valves of

the bottles.

A The screed must be heated up to the correct paving temperature before paving may

be restarted.

When work is finished

- Run the paver finisher empty and stop

it.

- Lift the screed by using button (33).

- Retract the screed parts to the basic

screed width and lift the auger. Where

applicable, completely extend the lev-

elling cylinders.

A

33

B

Screedswitch2a.bmp

D4.1 20

- Insert the mechanic screed transport

safeguard (74) on both screed lifting

cylinders.

74

- While operating the tampers at a low

speed, let any material residues drop

out.

F0083_A1.Tif

- Set the drive lever (9) to the center po-

sition and the speed adjuster (10) to

minimum

5

- Switch off the ignition (5).

- Switch off screed heater (system).

- When screed is operated with the op-

tional gas heating system, close the

main shut-off valves and the valves of

the bottles.

9

- Remove the levelling units and stow

10

them away in the boxes, close all flaps

- Remove all parts that extend beyond

the paver finisher contour or secure

them if the paver finisher is to be trans-

Element2_SPS_Kette_635.wmf

ported over public roads on a low-bed

trailer.

Do not turn off main switch until 15 sec-

m

onds after the ignition has been turned

off!

The engine electronics need this length

A

of time to back up data.

F0077/0078_A1.EPS

D4.1 21

- Read and check the oper-

ating hour meter to deter-

mine whether maintenance

work must be performed

(see chapter F).

- Cover and lock the operat-

ing panel.

- Remove material residues

from the screed and the

paver finisher and spray all

parts with separator fluid.

Terminal_SPS_Kette_635.wmf/Bild_008.bmp

D4.1 22

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