Rear underrun protection device according to ECE-R58/03 ...

Rear underrun protection device according to ECE-R58/03 regulations
General
435

575

Rear underrun protection.

GeneralFrom 1 September 2021 onwards, each new registration of vehicles within the EU must comply with the regulations in accordance with ECE-R58/03.

Rear underrun protection is usually delivered in transport mode from Scania and final fitting must follow Scania's installation instructions. Scania's installation instructions must also be followed when moving factory-fitted underrun protection. Scania's in-stallation instructions comply with the provisions of ECE-R58/03.

Certificates can be downloaded from the Scania Truck Bodybuilder website under Laws and regulations.

Scania Truck Bodybuilder 22:10-842 Issue 2 2022-02-23© Scania CV AB 2022, Sweden 1 (16)

General


Chassis conditionsVehicles with underrun protection produced from 21 May 2021 have underrun pro-tection that complies with ECE-R58/03. The table shows the corresponding chassis serial number for different factories:

Production site Chassis serialnumber

2021-05-21 -

Södertälje 2 184 754 -

Zwolle 5 629 673 -

Angers 9 287 439 -

São Bernardo do Campo N/A -


Profile types according to ECE-R58/03


124

165

70

150

63.5

96.5

160

12 3

433

436

The 3 different profiles for rear underrun protection. Outer dimensions are given in millimetres.

Profile types according to ECE-R58/03Rear underrun protection is available with 3 different profiles depending on their area of use.

U-profileThe aluminium U-profile (1) makes it possible to fit tail lamps and registration plates well protected. The tail lamps can be ordered fitted in the U-profile.

Square profileThe aluminium square profile (2) provides better ground clearance for an underslung drawbeam than the U-profile.

Round profileThe round profile (3) made of steel is recommended for tipper trucks, for example, so that tipped gravel runs out of the underrun protection and does not accompany the vehicle out onto the road.


Profile types according to ECE-R58/03


Variant code

1538D

1538Z

1539H

1539J

1539K

Ordering conditionsRear underrun protection can be ordered according to the following options:

Option Alternative

Rear underrun protection according to ECE-R58/03 With

None

Rear underrun protection, type according to ECE-R58/03 U-profile

Round profile

Square profile


Transport-mounted rear underrun protection


Transport-mounted rear underrun protec-tionIf the vehicle is fitted with a transport-mounted drawbeam, it is fitted on the same end plates as the underrun beam.

More information on the type of underrun protection fitted on the vehicle is found in the vehicle’s individual chassis specification (ICS).

Conditions for final fittingThe underrun protection must be finally mounted according to Scania's installation instructions which comply with the provisions of ECE-R58/03. This is a requirement that enables the national inspection authority to issue installation approval.

More information can be found in the document Info document E4*58R03/02 on the Scania Truck Bodybuilder website.


Information on fasteners and associated tightening torques


Information on fasteners and associated tightening torquesUse original Scania parts as the information regarding tightening torques applies spe-cifically to Scania original screws. Always use new screws and nuts.

Tightening torques are applicable as follows:

Screw dimension Tightening torque (Nm) + Angle (degrees)

M16 10.9 270

M14 10.9 135 + 60°




Check screw jointsIMPORTANT!

• No part of the threaded part of the screws should be at the level of the end plate material

• It is prohibited to weld on components belonging to the rear underrun protection installation that have Scania component certification.

• It is prohibited to drill into components belonging to the rear underrun protection installation that have Scania component certification.

• It is prohibited to apply oil to screws and nuts

• Only the components in these instructions, end beams, tow beams and drawbeams can be fitted together with the end plate screw joints.

Check the screw joints after 2,500 km.

The tightening torque of 162 Nm is a control torque. If it clicks at this torque, the screw is sitting as it should. Otherwise, it should be renewed and tightened to 135 Nm + 60° angle (degrees).

A vehicle with any of the following vehicle specifications must be fitted with an end beam:

• Without drawbeam or tow beam

• Semi-underslung drawbeam

• Underslung drawbeam

• Low underslung drawbeam

A vehicle can be ordered without an end beam from Scania. In such a case, the vehi-cle must be fitted with an end beam that may be of a make other than Scania. In such a case, the end beam must satisfy statutory requirements for strength and rigidity.




1 2

433

444

Long or short end plate with tow beam.

1 2

3

433

446

Long or short end plate, centrally mounted drawbeam DB5A.

Attachment for different vehicle specificationsMore information on drawbeams and tow beams can be found in the document Tow-ing units for trucks.

Long or short end plate with tow beam

Long or short end plate, centrally mounted drawbeam DB5A

Pos Part Part number Quantity Dimensions (mm)

1 Screw 2 139 434 18 M14 x 60

Lock nut 816 048 18 M14

Washer 2 129 590 36 14.5 x 26

2 Screw 394 626 12 M14 x 68

Lock nut 816 048 12 M14

Washer 2 129 590 36 14.5 x 26


1 Screw 2 139 434 4 M14 x 60

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26

2 Screw 394 626 16 M14 x 60

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26

3 Screw 2 139 434 10 M14 x 60

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26




1 2

3

433

446

Long or short end plate, centrally mounted drawbeam DB7A.

12

433

447

Long or short end plate, centrally mounted drawbeam DB7S.

Long or short end plate, centrally mounted drawbeam DB7A

Long or short end plate, centrally mounted drawbeam DB7S


1 Screw 394 626 4 M14 x 60

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26

2 Screw 394 626 16 M14 x 60

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26

3 Screw 2 139 434 10 M14 x 60

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26


1 Screw 1 439 024 10 M14 x 75

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26

2 Screw 2 156 883 20 M14 x 70

Lock nut 816 048 20 M14

Washer 2 129 590 40 14.5 x 26




1

2

433

448

Short end plate, semi-underslung drawbeam DB7A/DB7S.

1 2

433

449

Long or short end plate, end beam square profile.

Short end plate, semi-underslung drawbeam DB7A/DB7S

Long or short end plate, end beam square profile


1 Screw 394 626 10 M14 x 68

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26

2 Screw 2 156 883 20 M14 x 75

Lock nut 816 048 20 M14

Washer 2 129 590 40 14.5 x 26


1 Screw 394 626 10 M14 x 68

Lock nut 816 048 10 M14

Washer 2 129 590 20 14.5 x 26

2 Screw 2 156 883 20 M14 x 75

Lock nut 816 048 20 M14

Washer 2 129 590 40 14.5 x 26




1

433

450

Long or short end plate, end beam U-profile.

1

2

433

451

Wide end plate, end beam square profile, underslung drawbeam DB7A.

Long or short end plate, end beam U-profile

Wide end plate, end beam square profile, underslung drawbeam DB7A


1 Screw 2 139 434 30 M14 x 68

Lock nut 816 048 30 M14

Washer 2 129 590 60 14.5 x 26


1 Screw 2 139 434 24 M14 x 68

Washer 2 129 590 24 14.5 x 26

2 Screw 2 156 883 6 M14 x 75

Lock nut 816 048 6 M14

Washer 2 129 590 12 14.5 x 26




1

433

452

Wide end plate, end beam U-profile, underslung drawbeam DB7A.

Wide end plate, end beam U-profile, underslung drawbeam DB7APos Part Part number Quantity Dimensions (mm)

1 Screw 2 139 434 30 M14 x 68

Lock nut 816 048 30 M14

Washer 2 129 590 60 14.5 x 26




12

3

433

467

Underrun beamUse 4 new lock nuts (part number 1 395 063) of strength class 10 with screw dimen-sion M16 to attach the underrun beam to the end plates.

Use 4 screws (part number 2 824 150) of strength class 10.9.

Use tightening torque 270 Nm.




X GCmax

300≤

100≤B

A

A

433

463

12 3

446

569

Maximum clearance for the underrun protectionDistance X is measured from the centre of the last axle. Applies to unladen vehicles, including vehicles with raised tag axles.

• A – Rear underrun protection

• B – Distance from the rear underrun protection to the outer surface of the tyre: Maximum 100 mm

Clearance (GCmax) (mm)

Prerequisites Profile type (A)

U-profile (1) Square profile (2) Round profile (3)

X<3914 Air suspension, Rear 450 440 446

Leaf spring suspen-sion, Rear

500 490 496

X≥3914 550 540 546


Cutting the end plate


433

464

Cutting the end plateEnd plates that protrude below the underrun protection may be cut. Cutting must be done in accordance with the following guidelines:

• Only a cold cutting method, such as sawing, is permitted

• Cutting with a cutting torch is prohibited

• Cutting with an angle grinder is permitted, but not recommended. When using an angle grinder, coolant must be used or breaks should be taken at regular intervals to allow the end plate to cool down.

• Cutting must be carried out so that the dashed line between the holes on the end plate is visible after cutting. The cut should be made parallel to the dotted line.

• After cutting, the cut edge must be ground smooth, cleaned and treated with Au-tocoat BT WB 450 Topcoat IF Sub Grey 48440(part number 1 346 692) or an equivalent product to cover the cut surface

• Apply the anti-corrosive agent so that it overlaps with the existing paintwork


Cutting the end plate


C1

C2

C3

C4

C5

C6

S1

S2

S3

S4

S5

S6

A

C1

C2

C3

C4

C5

S1

S2

S3

S4

S5

B

C1

C2

C3

C4

C5

C6

S1

S2

S3

S4

S5

S6

C 446

570

The cutting position depends on the position and profile type of underrun protection. When the requirements have been satisfied, refer to the table to determine the cutting position.

The table indicates the cutting position that may be used for the relevant profile type and for the hole position in which the relevant underrun protection is fitted.

For example: A square profile underrun beam is used and is located in hole position S2. The end plate may be cut according to cutting line C3.

End plate:

• Short (A)

• Long (B)

• Wide (C)

Hole positions Type of underrun protection

Round profile Square profile U-profile

S1 C1 C2 C3

S2 C2 C3 C4

S3 C3 C4 C5

S4 C4 C5 C6a

S5 C5 C6a -

S6 C6a

a. Some end plates are not fitted with C6. In such a case, cutting is not permitted for this hole position.

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