manual camion scania 8x8

7/23/2019 Manual Camion Scania 8x8

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Scania CV AB 2010, Sweden

00:00-03/1Issue 1 en

Truck

Scania MLWV 8x8

Workshop Manual

Supplement to Scania Workshop Manual


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2 Scania CV AB 2010, Sweden 00:00-03/1

Contents

Function description Group 9 Wheels........................................................ 3Group 10 Brakes.......................................................4Group 11 Frame........................................................ 8Group 16 Electrical system ......................................9Group 18 Cab .........................................................13Group 19 Accessories............................................. 18

Work description Group 11 Frame......................................................23Group 16 Electrical system ....................................26Group 18 Cab .........................................................29Group 19 Accessories............................................. 31

Wiring diagrams BOL, Blackout lighting, sheet 1.............................33BOL, Blackout lighting, sheet 2.............................34

BOL, Blackout lighting, Trailer connector12-p rear, sheet 3 ....................................................35AWD, All Wheel Drive ..........................................36AHS, Auxiliary Heater System ..............................37POW, Power Supply System ..................................38

Pneumatic diagram Brake diagram 8x8 ................................................. 39

Contents


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00:00-03/1 Scania CV AB 2010, Sweden 3

Functiondescription

Group 9 Wheels

Wheel speed sensor

The vehicle is equipped with six wheel speedsensors one for each wheel on the three rearaxles.

The wheel speed sensor records the speed ofthe relevant wheel and sends the signal to theABS control unit. The pulse wheel is designedso that a magnetic flux is created in the wheelspeed sensor when the wheel rotates. Themagnetic flux generates a frequency which thecontrol unit uses to calculate the rotationalspeed of the wheel.

1 Wheel speed sensor T11





6Wheel speed sensor T12

311733

1 2 3

6 5 4

Function description


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Group 10 Brakes

ABS control valves

The vehicle is equipped with six ABS controlvalves one for each wheel on the three rearaxles. The control valves adjust the air pressureto brake cylinders during ABS control.

The control valves have three controlfunctions:

Pressure increase (normal mode): Inletopen and exhaust closed.

Pressure drop: Inlet closed and exhaust

open. Pressure retention: Inlet and exhaust

closed.

The control unit activates the function of thecontrol valves as necessary:

For ABS control, the control unit uses thecontrol valves to prevent the wheels fromlocking.

During TC modulation, the ABS control

unit uses the control valves to apply brakepressure to the driving wheel that isslipping.

During EBL modulation, the ABS controlunit uses the control valves to adapt the

pressure in the rear brake circuit to the loadof the vehicle.

Location of ABS control valves

1 Control valve V4

2 Control valve V6

3 Control valve V47

4 Control valve V46

5 Control valve V5

6 Control valve V3



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The control valves are regulated by a controlunit. They are connected to the control unit viaa cable harness and connectors.

ABS control valve

1 Port 1 - Inlet

2 Port 2 - Exhaust

3 Port 3 - Venting

4 Electrical connection

ABS control valve, electrical connection andinternal structure

1 Pin 1 - Supply to solenoid valve for venting

2 Pin 2 - Ground

3 Pin 3 - Supply to solenoid valve for inlet

4 Port 1 - Inlet

5 Port 2 - Exhaust

6 Port 3 - Venting



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Spring brake ventilation, rear axle

The vehicle is prepared for wading in depths ofup to 750 mm.

Plastic hoses with silencer are connected to

ventilation holes of the spring brake chambersto handle wading.

Spring brake ventilation, rear axle.

Spring brake ventilation, bracket in frame at

rear axle.



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Spring brake ventilation, frontaxle

Plastic hoses with silencer are connected toventilation holes of the spring brake chambersto handle wading.

Spring brake ventilation, front axle (viewedfrom above)

Spring brake ventilation, front axle (viewedfrom the side)



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Group 11 Frame

Underslung draw beam with towhook

The underslung draw beam is equipped withconnectors and other equipment for a trailer.

The side of the underslung draw beam housesbrackets for the rear lamp bracket.

Underslung draw beam

1 15-pin ABS trailer coupling

2 Convoy lamp

3 ABS trailer coupling

4 Towing eye bracket

5 12-pin NATO trailer coupling

6 Tow hook

Underslung draw beam (viewed from the side)

1 Attachment point for rear lamp bracket

2 Tightening torque 270 Nm



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Group 16 Electricalsystem

Blackout lighting

Rotary control for blackout lighting

In the first position (1) of the control, standardlighting is activated. The other positions are for

blackout lighting.

Press and turn to change the rotary controlposition from standard lighting to position 0and vice versa. To switch between 0 and theother positions, simply turn the rotary control.

Rotary control for blackout lighting

1 Standard lighting

2 0 - All interior and exterior lightingswitched off

3 S1 - Brake lamps and convoy lampactivated

4 S3 - Blackout lighting fully activated:

brake lamps, tail lamps, headlamps andconvoy lamp

5 S2 - Headlamps activated



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Fault messages in the instrumentcluster

Serious faults are indicated via a short acousticsignal and a message in the display whendriving with blackout lighting.

To view messages in the display withoutdeactivating blackout lighting, a torch or thelike can be used to light up the display.

All warnings that are notified via an acousticsignal when driving with blackout lighting areserious and mean that you should stop thevehicle as soon as possible.

Warnings and messages will remain until youacknowledge them.

The following warnings are indicated via ashort acoustic signal when driving with

blackout lighting:

Engine malfunction

High engine coolant temperature

Low engine oil pressure

EBS fault on trailer

Low brake pressure on trailer

Coordinator malfunction

High oil temperature in torque converter

ECU communication fault

EBS fault on tractor

Brake pressure low

Alternator not charging



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Blackout lighting cable harness

The blackout lighting cable harness andconnectors are located on the inside of thechassis beams.

Note: When blackout lighting is connected tothe vehicle, fault codes will be activated in thecontrol unit for light regulation, CUV (E32).

Blackout lighting cable harness in chassis.



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The blackout lighting cable harness andconnectors are located on the inside of thechassis beams.

Beam section A

1 Combination lamp, L1041

2 Registration plate lamp, L47, marked withgreen tape

3 Width marking light, L1031, marked withwhite tape

4 Registration plate lamp, L48, marked withgreen tape

5 Rear foglamp, L44/L92, marked withyellow tape

6 Brake lamp, L1013, marked with red tape

Beam section B

1 Convoy lamp, L1017, marked with bluetape

2 End-outline marker lamp, L1032, markedwith white tape

3 12-pin NATO, C1172

4 Combination lamp, L1042

5 Reverse alarm, N106 Reversing lamp, L43/L91, marked with

yellow tape

7 Brake lamp, L1014, marked with red tape

8 12-pin NATO, C1170

9 Reverse alarm, L43X/L91X



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Group 18 Cab

Roof hatch

The roof of the vehicle cab houses a manualroof hatch, which can be opened from theinside.

The roof hatch can be opened completely.

Roof hatch

1 Control and decal for opening the roofhatch

2 Control and decal for closing the roofhatch



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Cab tilting

On vehicles with large wheel housing and cabtilt pump in the bumper, a special tool is neededto tilt the cab.

The tool kit contains a special tool for settingthe cab tilt pump valve.

For more information on cab tilting, refer toScania Multi 18-65 Cab tilting.

Special tool for setting the cab tilt valve



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Tilting the cab

The tool kit contains a special tool for settingthe cab tilt pump valve.

Note: Do not tilt the cab if the vehicle bumperis removed or if the underlying surface slopesmore than 10%.

Procedure

1 Open the upper front grille panel and takeout the cab tilting handle bar.Leave the front grille panel open.

For more information on the front grilepanel, refer to Scania Multi 18-05 Frontgrille panel, bonnet.

2 Apply the parking brake.

3 Put the gear lever in the neutral position.

4 Make sure there are no loose objects in thecab and close the cab doors.

Handle bar for cab tilt pump

5 Insert the spcial tool in the hole with thepump valve rotary control and set the pumpvalve to the cab tilting position.

Setting the valve for cab tilting

Setting the cab tilting valve to tilt the cab



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6 Put the adapter on the pump pin (1).

7 Put the handle bar and the adapter together(2).

8 Start pumping (3).

The cab lock opens automatically. Makesure that the cab lock is fully open beforefull pump pressure is reached.Pump the handle bar up and down parallelto the length of the vehicle.

9 Pump up the cab all the way until it fallsforward under its own weight. Continue

pumping to the upper end position, whereresistance increases in the pump rod.

10 Fit the cab strut.

IMPORTANT! If you have to start the enginewhile the cab is tilted, make sure the gear leveris in the neutral position.

Pumping for cab tilting



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Lowering the cab

1 Remove the cab strut.Pump up the cab slightly to ease removalof the cab strut pin.

2 Insert the spcial tool in the hole with thepump valve rotary control and set the pumpvalve to the cab lowering position.

3 Put the adapter on the pump pin (1).

4 Put the handle bar and the adapter together(2).

5 Start pumping (3).Pump the handle bar up and down parallelto the length of the vehicle.

6 Pump until the cab falls into place under itsown weight. Because the cab falls into

position, it is locked into the cabmountings.

7 Secure the handle bar in its bracket inside

the upper part of the front grille panel.

Setting the valve for cab tilting

Setting the cab tilting valve to lower the cab

Pumping for cab tilting



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Group 19 Accessories

Cold weather adaptation

The vehicle is adapted to work better in a coldclimate. The battery and fuel filter are heatedwith hot coolant via heat from the engine orfrom a diesel-powered auxiliary heater.

Cold weather adaptation comprises:

Battery heater

Water-separating fuel filter heater

Cold weather adaptation, flow of hot coolant

1 Engine

2 Auxiliary heater

3 Circulation pump

4 Fluid distributor

5 (Not used)

6 Water-separating fuel filter heater

7 Battery heater

8 Cab heater



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Circulation pump

The circulation pump circulates hot coolant.

The circulation pump is located in the enginecompartment on the wall that houses the cabladder.

Note: When connecting a new circulationpump, the electrical connector must berenewed. For a description of electricalconnection of the circulation pump, refer to theWork descriptionchapter.

Location of the circulation pump on thevehicle.

Circulation pump1 Coolant out

2 Coolant in Circulation pump, pipe connections

1 Circulation pump

2 Coolant out

3 Cab heater branch connection

4 Fluid distributor branch connection

5 Coolant in, from auxiliary heater



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Fluid distributor

The fluid distributor distributes the hot coolant.

The return output of the cab heater contains arotary control for cutting off the flow of coolantto cold-weather-adapted parts.

Location of fluid distributor

1 Battery box

2 Fluid distributor

3 Water-separating fuel filter

Fluid distributor

1 In, from water-separating fuel filter heater

2 In, from battery heater

3 Out, to battery heater

4 Out, to water-separating fuel filter heater

5 In, from auxiliary heater

6 (Not used)

7 Out, return to cab heater with shut-off

control



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The water-separating fuel filter heater heats upthe water-separating fuel filter.

Location of water-separating fuel filter

1 Battery box

2 Fluid distributor3 Water-separating fuel filter


1 Heat out, to fluid distributor

2 Heat in, from fuel heater

3 Fuel in

4 Fuel out



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Battery heater

The battery heater is located in the battery boxbeneath the vehicle batteries. It heats thevehicle batteries.

The outgoing coolant pipe houses a rotarycontrol to shut off the flow to the battery heater.

Location of the battery box

1 Battery box2 Fluid distributor


4 Rotary control for shutting off the flow ofcoolant to the battery heater

Location of battery heater

1 Battery heater

2 Fluid distributor


Battery heater

1 In, coolant from fluid distributor

2 Out, coolant to fluid distributor



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Work description

Group 11 Frame

Removing the draw beam

1 Remove the ABS trailer coupling (3).

2 Remove the 12-pin NATO trailercoupling (5).

3 Remove the 15-pin ABS trailercoupling (1).

4 Remove the convoy lamp (2).

5 Remove the eight bolts from each side ofthe draw beams upper section.

6 Fasten the draw beam securely in liftingequipment.

7 Remove the eight bolts from each side ofthe draw beams lower section.

8 Remove both parts of the draw beam.

Underslung draw beam

1 15-pin ABS trailer coupling

2 Convoy lamp


4Towing eye bracket


6 Tow hook

Work description


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Fitting the draw beam

1 Lift the draw beams lower section intoplace and attach using eight bolts on eachside.

Tightening torque 270 Nm +/- 15%.

2 Lift the draw beams upper section intoplace and attach using eight bolts on eachside.Tightening torque 270 Nm +/- 15%.

3 Fit the convoy lamp (2).

4 Fit the 15-pin ABS trailer coupling (1).

5 Fit the 12-pin NATO trailer coupling (5).

6 Fit the ABS trailer coupling (3).

Underslung draw beam (viewed from the side)

1 Attachment point for rear lamp bracket

2 Tightening torque 270 Nm

Underslung draw beam1 15-pin ABS trailer coupling

2 Convoy lamp


4 Towing eye bracket


6 Tow hook

Work description


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Removing the tow hook

1 Remove the four bolts which hold the towhook in place.

2 Remove the tow hook.

Fitting the tow hook

1 Fit the tow hook in place.

2 Fit the four bolts which hold the tow hookin place.Tightening torque: 420 Nm +/- 15%

Tow hook

Work description


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Group 16 Electricalsystem

Blackout lighting

IMPORTANT! Use clean gloves whentouching bulb glass.Avoid touching the reflector with your fingers.

IMPORTANT! Make sure that the lamp lensforms a tight seal when you refit it.

Renewing a bulb in the blackoutlighting headlamp

1 Undo the screws on the sides of theheadlamps (1).

2 Remove the lens.

3 Renew the bulb.

4 Refit the lens.

5 Tighten the screws.

Headlamp for blackout lighting

1 Lamp lens screws

Work description


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Renewing bulbs in thecombination lamp

1 Undo the screws and remove the lens.

2 Press in the bulb, turn anticlockwise and

remove it.

3 Fit a new bulb.

4 Refit the lens and tighten the screws.

Renewing a bulb in the convoy

lamp

Renew the bulbs from the rear of the plate theconvoy lamp is fitted on.

Procedure

1 Detach the convoy lamp plate by removingthe lock pins on the top.

2 Turn the convoy lamp so the rear isaccessible.

3 Undo the 4 nuts (1) and remove theprotection.

4 Detach the bolts holding the lens in place.

5 Remove the lens.

6 Renew the bulb.

7 Refit the lens and tighten the bolts thatwere unscrewed.

8 Refit the protection and tighten the 4 nutsthat were unscrewed (1).

9 Turn the plate over and refit it in thecorrect position using the lock pins.

Convoy lamp, rear

1 Nuts for convoy lamp protection

Work description


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Bulbs in the blackout lighting

A table of the bulbs used for various blackoutlighting components is found below.

Note: All bulbs must be of the 24 volt type.

Lamp Base Power

Headlamp for blackout lighting Ba15s 18 W

Combination lamp: tail lamp for standard lighting Ba15s 5 W

Combination lamp: brake lamp for standard lighting Ba15s 21 W

Combination lamp: bulb for direction indicator Ba15s 21 W

Combination lamp: tail lamp for blackout lighting Ba9s 2 W

Registration plate lamps Ba15s 5 W

Front fog lamp Ba15s 21 W

Reversing lamp Ba15s 21 W

Brake lamp for blackout lighting Ba9s 2 W

Convoy lamp Ba9s 2 W

Lamp Light source Action if the light source does not light up

End-outline marker lamp LED Renew the entire unit

Side marker lamp LED Renew the entire unit

Work description


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Group 18 Cab

Removing the roof hatch

1 Open the roof hatch.2 Remove the eye bolts on the mechanism

(one on each side).

3 Remove the roof hatch outer part.

4 Remove the bolts which hold the roofhatch mechanism in place (two on eachside).

5 Remove the bolts which hold the roofhatch frame in place (two on each side).

6 Remove the roof hatch mechanism andframe.

Fitting the roof hatch

1 Fit the frame together with the roof hatchmechanism. Secure the frame with four

bolts.

2 Fit the bolts which hold the mechanism inplace (two on each side).

3 Fit the outer part of the roof hatch.

4 Fit the eye bolts (one on each side).

5 Close the roof hatch.

Roof hatch

1 Roof hatch mechanism

2 Eye bolts

Work description


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Adjusting the roof hatch

If the roof hatch does not form a tight seal,adjustment may be required. A description ofroof hatch adjustment follows.

Procedure for vertical roof hatchadjustment.

1 Undo the bolts securing the roof hatchlock.

2 Adjust the roof hatch vertically to asuitable position.

3 Tighten the bolts securing the roof hatchlock.

Procedure for roof hatch angle adjustment.

1 Undo the eye bolts securing the attachmentof the rear roof hatch arm.

2 Adjust the angle of the roof hatch to asuitable position.Adjustment is done by sliding the pins ofthe roof hatch arms to a suitable position in

the groove on the brackets.

3 Tighten the eye bolts.

Roof hatch

1 Roof hatch mechanism

2 Eye bolts

Work description


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Group 19 Accessories

Venting cold-weather-adaptationparts

Poor performance of cold weather adaptationparts could be caused by air in the system. Ifthis is the case, the system must be vented.

Note: Coolant filling must always be done viathe designated union under the vehicle cab. SeeScania Multi 02-00 Cooling system.

Venting procedure

1 Start the vehicle engine and auxiliaryheater.

2 Increase engine speed slightly.

3 Shut off the flow of coolant to the cold-weather-adapted parts using the rotarycontrol (1) on the fluid distributor.


5 Open the flow of coolant to the cold-

weather-adapted parts using the rotarycontrol (1).

6 Shut off the flow of coolant to the batteryheater using the rotary control (2) locatedat the battery heater.

7 Shut off the flow of coolant from thecirculation pump to the cab heater.The flow is shut off by choking the hose

between the circulation pump branchconnection and the cab heater with a clamp

or in another suitable manner.


9 Open the flow of coolant to the batteryheater using the rotary control (2).

10 Open the flow of coolant between thecirculation pump and the cab heater.

Rotary control for shutting off coolant flow

1 Rotary control for shutting off coolant flowto cold-weather-adapted parts.

2 Rotary control for shutting off coolant flowto the battery heater.

Work description


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Circulation pump, electricalconnection

When a new circulation pump is fitted, theelectrical connector must be renewed. Adescription of this procedure follows.

Procedure for renewing the electricalconnector of the circulation pump

1 Remove the electrical connector suppliedwith the circulation pump.

Cut close to the connector to leave as muchof the electrical cables as possible.

2 Fit the new connector.Connect the brown electrical cable to pin 1,ground connection.

Connect the black electrical cable to pin 2,current connection.

Note:Note that the black electrical cable of thecirculation pump must be connected likeelectrical connection, pin 2. Circulation pump electrical connection

Work description

manual camion scania 8x8

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