Assembly Instructions

ASSEMBLY INSTRUCTION ALEX Assembly Instructions are designed to provide a description of the assembly of Delta ALEX. Delta ALEX is type approved for load class up to class 5 Delta ALEX is designed to create a secure temporary access to installations and projects where appropriate. We hope everyone will use this manual to ensure proper installation of scaffolding. The purpose is to prevent accidents and make the workplace safe. 2014

Contents

2

Preface

3

Technical terms/Terminology

4

Material description/Properties

5

General load classification

6

Classification according NS-EN 12811

6

List of components

7

Recommended scaffold widths

14

Permissible load on standards

14

Load tables

16

Permissible building height

22

General conditions

23

Inspection and maintenance

24

Bracing

26

Fastening

27

Anti-falling

28

Scaffold system

29

Access

35

Toe board

38

Brackets

40

Beam riders (BRM/BRL)

43

Plank riders

45

DS/EB Diagonal Telescope

46

Mobile scaffolds

47

Stair tower

50

Scaffold pulley

51

Suspended Scaffold

52

Assembly Instructions ALEX

Preface The following rigging instructions are meant as a guide for ALL scaffolders and users of Delta ALEX. When using a new scaffold system, it is important to learn how the scaffold should be erected and which loads the scaffold is designed for. The rigging instructions explain all the important aspects in this context. Delta ALEX is approved until Class 5 loads (450 kg/m2) according to NS EN 12810 and NS EN 12811. Special calculations must be performed for greater loads. These calculations can be performed by the supplier. Many components are available for a variety of applications. We have presented options within the framework that prevails for Class 5 loads. We suggest that you familiarize yourself with the tables presented. These are meant as a useful tool for proper erection of the scaffold. We ask you to pay special attention to the section on maintenance. We sincerely hope that everyone will follow these instructions to ensure proper erection of the scaffold thus helping prevent accidents and increase job safety. GOOD LUCK!

3


Technical terms / Terminology As you proceed through this manual, you may encounter some unfamiliar words and expressions. These are based on the terminology suggested in EN 12811-1. The picture below shows an erected scaffold with a width of 1.2 m and a bay length of 3.0 m. We have inserted some of the terms and expressions which will be repeated throughout the manual.

Guardrail

Handrail Knee rail Toe board

Standard Diagonal Diagonal

Ledger beam Base jack

Transom beam Bay length Bay width

4


Material Description / Properties The scaffold is constructed of aluminum, with the exception of certain components that are more adequate in steel. The aluminum alloy is of the AlMg-Si-Mn type, which is sea-water resistant. The alloy can be delivered with certificates from DET NORSKE VERITAS, LLOYDS Register of Shipping or GERMANISHER Lloyd. The alloy elements provide the following material properties: Mg (magnesium) 

Increases strength



Increases hardness



Good corrosion resistance



Improved weld ability

AL + Si (silicon) 

Yields temper able alloys in combination with magnesium




Mn (manganese) 

Excellent yielding properties



Increases breaking strength






Allows for compliance with very small tolerances

As will be apparent from the above, this is an excellent alloy, especially for offshore applications. We have evaluated various types of aluminum alloys, and have selected the alloy recommended by aluminum experts.

5


General Load Classification The Delta Spirstillas scaffold system is certified for loads up to Class 5 by the Directorate of Labour Inspection. Loads in excess of Class 5 will require special calculations. Equally distributed load

Concentrated load on area 500mm x 500mm

Load of one person on area 200mm x 200mm

Load on part area

Klasse Class

kN/m2

kg/m2

kN

kg

kN

kg

1

0,75

75

1,50

150

1,0

100

NOT PERMITTED

2

1,50

150

1,50

150

1,0

100

NOT PERMITTED

3

2,00

200

1,50

150

1,0

100

NOT PERMITTED

4

3,00

300

3,00

300

1,0

100

5,00

500

0,4A

5

4,50

450

3,00

300

1,0

100

7,50

750

0,4A

6

6,00

600

3,00

300

1,0

100

10,00

1000

0,5A

kN/m2

kg/m2

Part area m2

A = Area between two pairs of standards.

Classification according to NS-EN 12811 Class 1 (0.75 kN/m²) The scaffold has Class 2 components in floors, but allows for reduction of the total load by load transfer to related components (load on total area becomes Class 1). This class is only designed for inspections and tasks requiring light tools and no storage on the scaffold. Classes 2 and 3 (1.5 and 2.0 kN/m²) Scaffolds certified according to these classes are designated to provide access in connection with inspection work and work without storage of materials other than that which is consumed (paint/cleaning materials, etc.).

Classes 4 and 5 (3.0 and 4.5 kN/m²) Scaffolds certified according to these classes are designated for a heavier type of work where some storage of material must be expected (masonry/concrete elements, piping, etc.) Class 6 (6.0 kN/m²) Scaffolds in this class are designated for special tasks where heavy loads on the scaffold must be expected. When using Delta ALEX, special calculations must be performed prior to erection. These can be performed by the supplier.

6


List of components Extension Standards, FS/FSH Length meters

Weight [kg]

FS/FSH 3,0

3,0

8,9 / 9,2

FS/FSH 2,0

2,0

6,1 / 6,4

FS/FSH 1,5

1,5

4,7 / 5,0

FS/FSH 1,0

3,0

3,3 / 3,6

FS/FSH 0,5

3,0

1,9 / 2,2

Item

Ledger Beams, LB

Item

7

Length metres

Weight [kg]

LB 3,00

3,00

9,4

LB 2,45

2,45

8,5

LB 1,90

1,90

6,2

LB 1,60 (TB)

1,60

5,3

LB 1,20 (TB)

1,20

4,1

LB 1,00 (TB)

1,00

3,6

LB 0,72 (TB)

0,72

2,7

LB 0,50 (TB)

0,50

2,0


List of components Single Tubular Beam, EB Length metres

Weight [kg]

EB 3,00

3,00

4,4

EB 2,45

2,45

3,6

EB 1,90

1,90

3,0

EB 1,60

1,60

2,6

EB 1,20

1,20

2,1

EB 1,00

1,00

1,9

EB 0,70

0,72

1,5

EB 0,50

0,50

1,4

Item

Length metres

Weight [kg]

DSLB 3,00

3,00 bay

6,3

DSLB 2,50

2,50 bay

5,6

DSLB 1,90

1,90 bay

5,0

DSLB 1,60

1,60 bay

4,5

DSLB 1,20

1,20 bay

4,2

3,60

9,5

Item

Diagonal Bracing, DSLB

DST

8


DST

List of components Planking, PL (Cl. 5) Width 230 mm

Length metres

Weight [kg]

PL 3,0

3,0

10,1

PL 2,5

2,5

8,4

PL 1,9

1,9

6,8

PL 1,6

1,6

5,9

PL 1,2

1,2

4,7

PL 1,0

1,0

4,0

PL 0,7

0,7

3,2

Length metres

Weight [kg]

PL 3,0

3,0

9,6

PL 2,5

2,5

8,1

PL 1,9

1,9

6,9

PL 1,6

1,6

5,9

PL 1,2

1,2

4,3

PL 1,0

1,0

3,5

PL 0,7

0,7

2,4

Item

Planking, PL (Cl. 5) Width 170 mm

Item

9


List of components Labank Length x Width [m x m]

Vekt [kg]

Labank Alu lockable

1,25x0,6

9,1

Labank Alu

9,1

Labank Alu endplate

1,25x0,6 1,25x0,6

Labank Alu endplate

1,25x0,5

7,9

Labank Alu endplate

1,25x0,4

7,0

Octaflex

1,25x0,5

8,0

Item

Labank Alu

Labank Alu with endplate

Labank Alu lockable

9,1

Octaflex

Hatch Panel, LP 1.2 Item LP 1,20

Length metres

Weight [kg]

1,20

17,5

Length metres

Weight [kg]

2,1

3,6

LP 1,2

Ladder, LE Item LE 2,1

LE 2,1

Hand railing Stairs Heigth x Width [m x m]

Weight [kg]

STV 2,0 x 1,6

2,00 x 1,60

14,2

STV 2,0 x 1,2 STV 2,2 x 1,2

2,00 x 1,20 2,20 x 1,20

13,0 15,0

UTV 3,0

2,00 x 3,05

25,8

Hand railing

2,00 x 3,05

11,8

Item

10


STV

UTV

List of components Aluminum Toe board, FL Item

Length metres

Weight kg

FL 3,00

3,00

6,5

FL 2,45

2,50

5,4

FL 1,90

1,90

4,1

FL 1,60

1,60

3,5

FL 1,20

1,20

2,7

FL 1,00

1,00

2,2

FL 0,70

0,70

1,7

FLF

-

0,7

FLS

-

0,5

FLF, aluminum toe board coupler

FLS, for toe board connection

Plank rider, PLR Item

Weight kg

IP 0,70

1,8

IP 0,47

1,5

IP 0,23

1,2

VP 0,70

1,8

VP 0,47

1,5

VP 0,23

1,2

Beam Riders Item

11

Weight kg

BVR without top plate

1,3

BVR with top plate

1,4

BVRB BRM

1,1 0,7

Flexible fastener

1,6


BRM Flexible fastener BRM With top plate

BVRB BVR Without top plate

List of components Base jack (Steel), BS Wheel: Max load 750 kg

Benevning

Diam. x Høyde [mm x mm]

Vekt [kg]

Base jack

32 x 600

5,5

Wheel

32 x 600

8,1

Tie Rod With Clamp (Steel), VF/VFK Item

Length metres

Weight kg

VF 600

0,60

0,7

VF 800

0,80

0,9

VF 1000

1,00

1,0

Clamp

-

0,6

Eye Bolt

-

1,0

Cover Board, DL Item

12

Length metres

Weight kg

DL 1000

1,00

1,0

DL 700

0,80

0,8

DL 235

0,235

0,3

Clamp

-

0,1


Cover, DL

Clamp,DLK

List of components Cover Plate, DP Length x Width [m x m]

Weight [kg]

DP 1,14 x 0,63

1,14 x 0,63

8,1

DP 1,10 x 0,50 DP 0,70 x 0,50

1,10 x 0,50 0,70 x 0,50

6,2 3,9

DP 0,50 x 0,50

0,50 x 0,50

2,8

Item

Brackets, SK Item

13

Weight [kg]

SK 1,20 SK 0,70

6,6 3,5

SK 0,50

2,9

SK 0,30

0,8


Recommended scaffold widths The width of scaffolds is determined by the type of work to be performed on the scaffold. The table below shows recommended widths for various types of work. Type of work to be performed on the scaffold

Recommended width

Need to use a wheelbarrow and storage of material

1,6 / 1,9 / 2,45 / 3,0

Need for normal work space and storage of material

1,2 / 1,6

Need for normal work space and no storage of material

0,72 / 1,0

Permissible load on standards The maximum permissible load on standards is 20 kN (2000 kg) with a intermediate floor elevation of 2.0 m or less. In the case of greater floor elevation, the permissible load on standards must be reduced in accordance with NS-EN 12811 and the user is responsible for continuously clearing any snow load when applicable. See illustrations next page.

Floor heigth1

Permissable load on standards kN (kg)

2,0

20,0 (2000)

2,5

12,8 (1280)

3,0

8,9 (890)

¹Free height between junctions, where LB and TB meet the standard.

14


Permissible load on standards Permissible load on standards with floor height: • 2,0 meter = 20 kN • 2,5 meter = 12,8 kN • 3,0 meter = 8,9 kN

15


 Bay length 

Permitted distributed load (kg/m2) on DELTA aluminum transom beam with load from one bay.

16

LB 0.5 LB 0.7 LB 1.0 LB 1.2 LB 1.6 LB 1.9 LB 2.5 LB 3.0

 Bay width  Load on TB TB 0.5 TB 0.7 TB 1.0 TB 1.2 TB 1.6 TB 1.9 TB 2.5 TB 3.0 Art. No AS2098 AS2097 AS2096 AS2095 AS2094 AS2093 AS2092 AS2091 AS2098 450 450 450 450 450 450 450 450 AS2097 450 450 450 450 450 450 450 450 AS2096 450 450 450 450 450 450 450 450 AS2095 450 450 450 450 450 450 450 450 AS2094 450 450 450 450 450 450 450 450 AS2093 450 450 450 450 450 450 450 450 AS2092 450 450 450 450 450 450 450 300 AS2091 450 450 450 450 450 450 300 300 All requirements are controlled All loads inn kg/m2


 Bay length 

Permitted distributed load (kg/m2) on DELTA aluminum transom beam with load from two bays.


 Bay width  Load on TB TB 0.5 TB 0.7 TB 1.0 TB 1.2 TB 1.6 TB 1.9 TB 2.5 TB 3.0 Art. No AS2098 AS2097 AS2096 AS2095 AS2094 AS2093 AS2092 AS2091 AS2098 450 450 450 450 450 450 450 450 AS2097 450 450 450 450 450 450 450 450 AS2096 450 450 450 450 450 450 450 450 AS2095 450 450 450 450 450 450 450 300 AS2094 450 450 450 450 450 450 300 300 AS2093 450 450 450 450 450 300 300 200 AS2092 450 450 450 450 450 200 200 150 AS2091 450 450 450 450 300 200 200 150

All requirements are controlled All loads inn kg/m2

17


Load cases

Permitted load on ledger beam

Art. No.

Item

q (kN/m)

Q (kN)

P (kN)

P3 (kN)

P4 (kN)

AS 2091

LB 3,00

4,8

14,4

6,9

5,1

6,9

AS 2092

LB 2,45

7,2

17,6

8,4

6,3

8,4

AS 2093

LB 1,90

11,8

22,5

10,8

8,1

10,8

AS 2094

LB 1,60

16,7

26,7

12,8

9,6

12,8

AS 2095

LB 1,20

30,0

36,0

17,2

12,9

17,2

AS 2096

LB 1,00

42,1

42,1

17,5

15,4

17,5

AS 2097

LB 0,70

-

42,1

17,5

-

-

AS 2098

LB 0,50

-

42,1

17,5

-

-

NB! The ledger beams must be secured sideways with planks to take the different load cases.

18


Load cases

Permitted load on aluminum plank

19

Art. No.

Item

q (kN/m)

Q (kN)

P (kN)

P3 (kN)

P4 (kN)

R18305

PL 3,00

1,0

3,2

1,6

1,2

1,6

R18250

PL 2,45

1,5

3,9

1,9

1,4

1,9

R18196

PL 1,90

2,5

4,9

2,5

1,8

2,5

R18165

PL 1,60

3,5

5,8

2,9

2,2

2,9

R18125

PL 1,20

6,2

7,7

3,9

2,9

3,9


 Bay length 

Permitted distributed load (kg/m2) on DELTA aluminum single tubular transom beam with load from one bay.


 Bay width  Load on TB TB 0.7 TB 1.0 TB 1.2 Art. No R06072 R06100 R06120 AS2098 450 450 450 AS2097 450 450 450 AS2096 450 450 450 AS2095 450 450 450 AS2094 450 450 450 AS2093 450 450 450 AS2092 450 450 450 AS2091 450 450 450 All requirements are controlled All loads inn kg/m2

20


 Bay length 

Permitted distributed load (kg/m2) on DELTA aluminum single tubular transom beam with load from two bays.


 Bay width  Load on TB TB 0.7 TB 1.0 TB 1.2 Art. No R06072 R06100 R06120 AS2098 450 450 450 AS2097 450 450 450 AS2096 450 450 450 AS2095 450 450 450 AS2094 450 450 450 AS2093 450 450 450 AS2092 450 450 450 AS2091 450 450 450 All requirements are controlled All loads inn kg/m2

21


Permissible building height Permissible building height in meters Number of planked floors 1 2 3 4 5 6 7 8 9 10 11 12 Completely planked

LB 3,0 x LB 1,2 alu. plank 2,0m floor distance 110,5 104,5 100,5 96,5 93,5 86,5 82,5 78,5 74,5 68,5 64,5 60,5

LB 3,0 x LB 1,6 1,6m alu. plank 1,5m floor distance 76,5 72 66 61,5 55,5 51 46,5 40,5 36 30 25,5 21

LB 3,0 x LB 1,6 1,6m alu. plank 2,0m floor distance 94,5 88,5 82,5 76,5 68,5 62,5 56,5 50,5 44,5 38,5 32,5 24,5

34,5

18

24,5

The table shows the permissible building height for Class 5 Delta ALEX tubular scaffolds erected with various bay lengths and floor distances. This table applies to scaffolds with payload on 1 floor and no load transfer to the other floors. For 1,6m bay widths the planks must be 1,6m for class 5 (Ref. table on page 17).

22


General conditions The floors can be erected at vertical intervals of 0.5 meters, but 2.0 m is the norm. (See table for permissible loads on standards). The greatest permissible bay length is 3.0 m for Class 5 tubular scaffolds. (Applies to both widths and lengths.) Platforms higher than 2.0 m above ground shall be equipped with toe boards, knee rails and hand rails. For transom beams (TB) with lengths of 1,6m or longer are planking principle as shown under used on floors that can`t bear load from two bays according to table on side 17 (applies for Class 4 or higher).

The picture shows the planking principle for 1,6m and longer transom beams for load Class 4 or higher. See also load tables on page 16-21.

23


Inspection and maintenance The scaffold shall be inspected visually prior to use in order to check for cracks in welded joints and galvanic corrosion. Damaged material must be isolated and possibly rejected. It must never be done any modifications of the components (welding/bending/straightening etc) without obtaining new certification of the components. This is particularly important for load-bearing components. The vertical standards must never be cut in half. Loose parts (locks, bolts etc.) must be greased regularly. Moreover defect components can be shipped to the supplier for repair/maintenance. Erected scaffold shall regularly be controlled by qualified personnel to assure that any defects are detected at an early stage. Inspections must also include checking foundations to prevent scaffolds from sinking into the ground and making sure that base boards are securely fastened. Is must be expected that scaffolds fabricated in steel and aluminium will be subject to galvanic corrosion under special atmospheric conditions. In time, this type of attack could entail structural deterioration of the component unless corrective measures are implemented. However, meticulous galvanisation of steel components, along with regular inspection and maintenance can help detect such defects. Galvanic corrosion can be spotted by the naked eye as ingrained white powder at the surface of the aluminium. Most important is couplers being of recent date, such that the layer of zinc is entire and as thick as possible. Aluminium in contact with bare steel where moisture has access and seldom dries out will lead to corrosion. To be on the safe side one should have regular control for scaffolds that stand assembled for longer time. For scaffolds that are assembled for 2-3 months or longer, one can loosen a few couplers to check the surface of the aluminium pipe. If it turns out that corrosion has already started, (one can then see the white coat, and perhaps some white oxide powder) one can try moving the coupler a little to the side and tighten it again. Remember safety actions if one need to move couplers. If the corrosion is significant, one need to make sure the zinc coating is complete and reasonable thick and perhaps to assemble a newer coupler. Flushing of disassembled components by fresh water should also be done after long time off-shore use (3 months or more). Couplers shall be cleaned and greased when needed. Couplers where the zinc coating is worn down in the contact surface towards the piping, is smeared with cold zinc, or one can deliver the couplers in for hot galvanization or flame spraying with zinc. It is then assumed that all joint bolts are in good condition. Couplers that are worn in the joints shall be rejected. Bolt and nut are easy to replace. Bare steel surface must not come in contact with aluminium.

24


Inspection and maintenance Visual inspection of the scaffold material shall be performed according to the table below. Inspection and maintenance program for scaffold material Activity

Frequency Assembling

Assembled Offshore Onshore

Visual control of components

Before

After

Stroke damages/cracks/corrosion damages

X

Deformation

External influence (bad weather etc.)

7. day

14. day

X

X

X

X

X

X

X

X

X

Grease /oil / chemicals

X

X

X

X

X

Suspension components

X

X

X

X

X

Safe access

X

X

X

Bracings/ diagonals

X

X

X

Latches/ locks for safety rails

X

X

X

Latches/ locks for transom- and ledger beams

X

X

X

Floors, lock lists, lashings / openings

X

X

X

Tigthening of couplers

X

X

X

Steel and aluminium is separated

X

Scaffold materials

Tigthening of latches

X

X

Toe boards

X

X

Foundation / suspensions

25


X X

X

X

X

X

X

Bracing

The diagonal bracings, DS, are equipped with couplers that are assembled to the standards. Alternatively scaffolding tube SR 49 with coupler KS 49x49 can be assembled in a similar way. The diagonal bracings are assembled in 2.0 m vertically intervals in opposite direction for each height. The scaffold shall be braced by diagonal bracings till the top for every 4th bay, and always in the end bay length. Additionally must the scaffold be braced also between the outer and inner standards in end bays. A horizontal bracing shall be used for every 24 m vertically in every 8th bay for ledger beam LB 3.0. For these bracing there shall be wall fasteners taking horizontal forces.

26


Fastening Single wall clamp

Double wall clamp

The scaffold must be fastened to the wall (See single wall clamp) with wall clamps on each inner standard every 4 vertical meters. To absorb horizontal forces, wall fastening devices every 6 vertical meters for at least every eight inner standards must consist of two wall clamps fitted at right angles to each other (See double wall clamp) or similar devices. In addition, the end inner standards must be fastened at the top level. When using scaffold canvas, vertical wall fastening must be doubled. Presupposes out pulling tests and that fastenings withstands calculated wind loads.

Brackets When brackets are used either inside or outside must, in addition to the text above, the inner standards be fastened to the wall at both the bracket level and the underlying floor level. Further vertical erection is not permitted on a bracket without special calculations.

27


Anti-falling Safe fastening points for the anti-falling device are: 1. The hook is fasted around the standard tube until 1 meter above the joint. A joint is already assembled ledgers and transoms forming a rigid frame. It is presupposed that wall fastening is assembled according to our assembling instructions (page 26). Do not put the line (the rope itself) around the standard tube on top of the pocket, as the edges of the pockets may be sharp and course a break in the line. Do not fasten the hook in one of the hook of the pocket.

2. The hook can be fastened in the lower flange of the ledger beam at the centre of the span when the ledgers and transoms are assembled forming a rigid frame. The same presumptions as above are assumed.

28


Scaffold system It is an advantage to lay out enough material for the base prior to erection. In case of uneven or soft ground, foundation boards should be used under the base jack.

Start at the highest ground level by placing the standard on top of the adjustable base jack. The distance from the wall must never exceed 30 cm without a bracket or railing installed on the inside for floors above 2m over ground.

29


Place the outer standard and connect with transom beam.

Scaffold system

The beams must ALWAYS be locked in place by aid of the securing handle so that there is no possibility of the beam jumping out of the pocket on the standard.

Raise standards 3 and 4 and connect beams so you obtain a rectangle.

Adjust the bay length, both the short and the long end, using a carpenter's level. This must be performed carefully in order to simplify further erection.

30


Scaffold system Continue along the wall according to need. It is important to remember the securing devices on the beams, and that the scaffold must be level.

You can then begin assembling the next floor. The beams are normally fitted 2 m above the previous floor. Se page 27 for details for anti-falling safe fastening points.

31


Scaffold system Diagonal bracing are installed at the first bay and subsequently at every fourth bay. The end bays must ALWAYS have bracing in both directions.

Start assembly of the next level by mounting chosen access (See relevant chapters) following with floor planking.

The floor lays directly on ledger beams or transom beams depending on type and load requirements. The floor are fastened with use of toe board (See own chapter) and/or wire lashing. Some components are equipped with fastening arrangements that can be used.

32


Scaffold system The standards are installed directly on top of each other. Standards with top and bottom plates are locked in place by twisting. All standards are secured by use of bolt with lock pin.

Install guardrails containing handrail and knee rail on all levels above 2 meter. Guardrail shall be installed with the handrail 1 m above the floor, and the knee rail half way between the floor and the handrail. This applies even if the guardrail are installed by use of single components as LB`s or EB`s. . Dette gjelder uansett om det benyttes dobbelrekkverk eller enkeltkomponenter som LB/EB

33


Scaffold system Wall tie are installed at every 4th vertical meter for uncovered scaffolds and at every 2nd vertical meter for covered scaffolds on each inner standard. The clamps are placed as close to the connection point as possible (where the TB/LB meet), often just below the platform floor. It is important that wall tie and bracing are performed according to instructions (See page 26 &27) See separate section for installation of toe boards. The scaffold is now ready for use. Dismantling is performed in the reverse order.

34


Internal Stairway Install the stair at the top of the ledger beams. Install guardrail and/or EB’s to secure the stair.

Connect the guardrail posts with guardrails as shown in picture (or LB/EB)

Install floor and guardrail on the next floor. If the floor only to be used as entrance install a suitable floor next to the stair. Then install BVR with LB to brace the guardrail posts.

On floors with planks in the longitudinal direction use BRM instead of BVR. Install LB between and then install the planks on the LB’s. Guardrails and toe boars can then be installed between the standards.

The stairs exist to bay width 1.2m and 1.6m.

35


Hatch Panel 1,2 x 0,6m (LP 1,2) If you need to utilize the entire floor without openings, hatch panel can be used as an option. The ladder can be installed in several directions.

When the hatch is closed you can use the hatch panel as an ordinary floor. With hatch panel it is possible to make towers down to 1.2x0.7m base and still use the basal area as working floor. Hatch panel is approved for load class 5.

36


External Stairway Install a 0.7x3.0m field with ledger beams and standards outside of the scaffold.

Install the stair on the upper and lower ledger beam. Continue with hand rail and guardrail.

Continue with stairs, guardrail and hand rail to wanted level.

On the last level secure the entrance/exit with guard rail. Install guardrail post on BVR at the ledger beam.

As an alternative to standard and ledger beams, the stairs can be installed on 0.7m brackets.

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Toe Board The toe board is made from the principle of notching where one locks the other in corners. Install the toe board coupler of the toe board at top so that both toe boards is locked. At the same time the plank will be locked at the end.

The toe boards easily spliced with toe board coupler. It is easy to adjust the lengths with greater overlap.

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Bracket 1,2 m (SK 1,2) Load class 3 Fasten the bracket below with coupler and above with ledger beam. Remember additional wall tie.

Install standards and guard rails. Dismantling in reverse order.

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Install ledger beam between the brackets and place the planking on. Remember to secure the ledger beams with lock.

Bracket 0,7 m (SK 0,72) Load class 5 Install the bracket in the pocket at the standard. Remember to secure with lock. Remember additional wall tie.

Install plank, standards and guard rails. Dismantling in reverse order.

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Bracket 0,5 m (SK 0,5) Load class 5 Install the bracket in the pocket at the standard. Remember to secure with lock. Remember additional wall tie.

Install plank, standards and guard rails. Dismantling in reverse order.

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Bracket 0,3 m (SK 0,3) Load class 5

Install the bracket in the pocket at the standard. Used only inside against the wall. Remember to secure with lock. Remember additional wall tie. Install plank between the brackets. Dismantling in reverse order.

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Beam Riders (BRM/BRL) Beam Riders are used if it’s necessary to install additional ledger beam in the middle of a bay length. (BRM) Load class 3 Installation of ledger beam at the same level. (BRL) Load class 3 Used for distribution of weight across several ledger beams.

(BVR) Load class 3 Installation of ledger beams at the same level with standard connection.

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Beam Rider (RVR) Load class 3 Beam Rider are used as a combination of BRL and BVR where it’s required with guardrail posts between a bay length. Beam Rider are installed around the ledger beam and locked with a transom beam.

Install guardrail posts and guardrails. Install plank above the transom beam.

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Plank Rider Load class 5

Very often are obstacles in order to create a proper floor. As a solution you can use plank riders. Plank rider is available as IP and VP where IP is used between two planks and VP used between planks and ledger beam. Both are available in 1, 2 and 3 plank width.

The picture shows 2 plank IP installed between the existing floor. Secure the plank rider with string to the plank.

Final installed, it looks like this. The length of the plank to install on the plank rider adjusted to assortment and requirement. Other holes must patch. This can be done, for example, with a cover plate as shown. Secure the cover plate to the plank with string

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Telescope Diagonal DST Diagonal Telescope is a usable product because of its flexibility. The picture shows some example of use. It replace DS 1.2m, DS 3.0m and EB 3.0m. In addition, DST excellent requiring horizontal bracing.

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Mobile Scaffold Install standards and transom beam lying . Remember to lock the beams.

Assemble as shown. The scaffold will stand by itself.

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Lock the wheels before installation.

Install the 4th standard and the rest of the ledger beams.

Mobile Scaffold Install ledger beams for the next floor. Check that the scaffold is level. Bracing mounted on each side and at the junction of the lower floor/beam level.

Proceed as shown previously up to wanted height. Always install guardrail/handrail and toe boards at all scaffold floors.

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Install the scaffold floor on the 2nd floor, then the stair.

Mobile Scaffold Mobile Scaffold – outdoors in moderate wind (less than 12.4 m/s)

H r = height [m] to the upper guardrail B = width [m] (including any support leg) L = length [m] VS = self weight [kg] of scaffold VBA = weight [kg] of ballast VBA = necessary ballast [kg] Hr less than 9,0m L less than 4,0m

VBA 

5,76  L  Hr  Hr  21  Hr  15  Vs B

Mobile Scaffold - indoors H = height [m] to platform floor B = width [m] (including any support leg) VS = self weight [kg] of scaffold VBA = weight [kg] of ballast VBA = necessary ballast [kg] H less than 12,0m L less than 4,0m

VBA 

90  H  15  Vs B

Finally, check the correct installation and bracing. Dismantling in reverse order.

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Stair Tower 1,6 m x 1,2 m Start by installing the first 2 floors. Remember the locks.

Attach the stairs first. The stair should rest on the transom beam upper edge.

Place the plank, the continue with any next floor and stair.

Guard rails should be installed on three sides of the tower, depending on which side it is required with entrance/exit. Stair tower does not need toe board.

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Anchor the tower to the wall. Dismantling in reverse order.

Scaffold Pulley

Install the pulley direct to the standard. Use wall tie to prevent the scaffold being pulled from the wall under load of the pulley.

Allowable load is 0,75 kN (75 kg).

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Assembling of suspended scaffold Grawlock- and SK-couplers (NB! If other suspensions are used, see our Offshore Suspension manual) The couplers are used to suspended scaffolds in beams via pipes or girders as shown in the examples below. Both couplers are only allowed used in pairs.

Art. No

Item

Weight (kg)

Maximum loading (in pairs)

ST1025

SK 49

1,3

10 kN

ST1029

Grawlock

1.5

12 kN

SK-Couplers: Fasten the SK-Couplers loosely around the tube so that they stay in place. Insert the tube into position on the beam and push the couplers into the beam. Tighten the couplers to the tube before fastening the couplers to the beam. Typical pulling force for the coupling is 50 Nm. The tube is now fastened to the beam and the same operation is performed on the next beam.

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Assembling of suspended scaffold Grawlock- and SK-couplers Grawlock-Couplers: Install the Grawlock couplers into position on the beam first. Then place the tube into the coupler and lock it. Typical pulling force for the couplers is 50 Nm. The same operation is performed on the next beam.

Example of installation of suspended scaffolding: Suspended in tubes:

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Suspended in beams:

Assembling of Suspended Scaffold NB! All suspension scaffold shall be strengthen calculated in advance. Before installation begins, the area under cordoned off. Remember use of approved fall protection.

Start the installation of using approved beam couplers.

Install the first standard. Remember, all supporting suspensions shall be secured, for example safety couplers.

Install the next suspension and the standard number two. Measure the distance by install a ledger beam between the standards. Remember to level off. Fasten the suspension when the correct distance is obtained. Make sure all couplers are securely fastened.

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Assembling of Suspended Scaffold Install the ledger beam as shown. Make sure that the standards are vertical and the ledger beams is level. Remember safety couplers.

Use struts to support the standards to a wall or a solid installation to prevent tilt of the scaffold.

Install standard number 3 and 4 and fasten to the next beam/suspension.

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Assembling of Suspended Scaffold Install guardrails and toe boards for safe working platform.

Dismantling in reverse order.

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Storebotn 73 N-5309 Kleppestø Norway Phone (+47) 5570 7054 Fax (+47) 5615 0201 [email protected] www.deltasystem.no

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Assembly Instructions

Assembly Instructions

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