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Instruction Manual -

 

508

Ladderspan

 

3T

Mobile Aluminium Tower 

1450/850 Ladderspan

3T -

 

Through the Trapdoor Method

 

Safety 

Value 

/

 Availability 

/

 Support

hss.com 

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 08457 28 28 28

Summary of Contents for Mobile Aluminium Tower 1450

Page 1: ...Instruction Manual 508 Ladderspan 3T Mobile Aluminium Tower 1450 850 Ladderspan 3T Through the Trapdoor Method Safety Value Availability Support hss com 08457 28 28 28 ...

Page 2: ...BoSS Ladderspan 3T Instruction Manual ...

Page 3: ... 2 1 Pre Assembly Checks 4 2 2 Component Diagram 5 2 3 Quantity Schedule 6 2 4 Stabilisers 9 2 5 Assembly 10 2 5 1 Assembly for 1450 Towers 11 2 5 2 Assembly for 850 Towers 16 2 6 Dismantling 18 3 Using the Tower 3 1 Safety Checklist 19 3 2 Pre Use Checklist 19 3 3 Use 20 3 4 Movement of the assembled prefabricated tower scaffold 21 ...

Page 4: ...aluminium towers are light weight scaffold towers used throughout the building and construction industry for both indoor and outdoor access solutions where a stable and secure platform is required Ideal for maintenance and installation work or short term access the highly versatile towers provide a strong working platform for a variety of heights Verification and assessment documentation is held b...

Page 5: ...Refer to the BoSS Inspection Guidance for detailed inspection and maintenance advice the guidance is available to download at www bossaccesstowers com Threads hinges and brace latches may be lubricated with light oil Ensure oil does not contaminate climbing or walking surfaces Safety labels should be kept legible Replacement labels are available from Werner UK Sales Distribution Ltd Surfaces shoul...

Page 6: ... used to access other structures Ensure the safe working load on the structure is not exceeded Tools and materials should be lifted using a reliable lifting material e g a strong rope employing a reliable knot e g clove hitch to ensure safe fastening and always lift within the footprint of the prefabricated tower scaffold i e within the area bounded by the stabilisers Check this manual is availabl...

Page 7: ...lding the Tower Instruction Manual Horizontal Brace Span Frame 4 Rung Platform Fixed and Trapdoor Decks Ladder Frame 4 Rung End Toe Board Stabiliser Span Frame 2 Rung Ladder Frame 2 Rung Adjustable Leg Castor Diagonal Brace Side Toe Board ...

Page 8: ... 1 1 2 1 1 1 30451100 30551100 Trapdoor Deck 1 8m and 2 5m 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 31251300 34851300 Horizontal Brace 1 8m and 2 5m red 6 10 10 10 10 14 14 14 14 18 18 18 18 22 22 22 22 26 26 26 26 31351300 31451300 Diagonal Brace 2 1m and 2 7m blue 4 6 6 8 8 10 10 12 12 14 14 16 16 18 18 20 20 22 22 24 24 30450900 30550900 Side Toe Board 1 8m and 2 5m 2 2 2 2 2 2 2 2 2 2 2 2 2 2...

Page 9: ...pdoor Deck 1 8m and 2 5m 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5 6 6 6 31251300 34851300 Horizontal Brace 1 8m and 2 5m red 6 10 10 10 10 14 14 14 14 18 18 18 18 22 22 22 22 26 26 26 26 31351300 31451300 Diagonal Brace 2 1 and 2 7m blue 4 6 6 8 8 10 10 12 12 14 14 16 16 18 18 20 20 22 22 24 24 30450900 30550900 Side Toe Board 1 8m and 2 5m 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 30250900 End Toe Boa...

Page 10: ...the permitted component variation from the Quantity Schedule Note These substitutions must be made before assembly Stabilisers with Universal Clamps may be substituted Other Castor sizes and types may be substituted 2 Building the Tower Component Code Description Weight kg 31842300 Diameter 150mm Tyred 3 2 32942300 Diameter 200mm 3 9 31942300 Diameter 200mm Tyred 3 9 Component Code Description Wei...

Page 11: ...e frames Component Code Description Weight kg 33151700 Walk through Frame 2 0m 10 8 2 4 Stabilisers X X 90 Double Width 1450 Tower Single Width 850 Tower Platform Length Platform Length 1 8m 2 5m 1 8m 2 5m SP7 3351 3629 2294 3201 SP10 4789 5100 4458 4734 SP15 5520 5838 5195 5485 SP10 and SP15 stabilisers must always be fully extended Position the lower clamp so that the arm is as close to horizont...

Page 12: ...the taller assemblies Components must be lifted within the footprint of the tower using a reliable method such as a strong rope with a clove hitch knot Always start assembly with the smallest height frames at the base Platform Height m Frame at Base 2 2 3 7 4 2 5 7 6 2 7 7 9 7 10 2 11 7 12 2 2 Rung 2 7 4 7 6 7 8 7 10 7 3 Rung 3 2 5 2 7 2 9 2 11 2 4 Rung Where all three frames are specified start w...

Page 13: ...elling a gap of 50mm is left between the bottom of the leg and the adjustable nut Adjustable legs are for levelling only You must not adjust all four to gain extra height Fit one horizontal brace red onto the vertical of a span frame just above the bottom rung with the claw facing outwards The frame will now be self supporting Note All locking claws must be opened before fitting 2 Building the Tow...

Page 14: ...rizontal brace between the bottom rungs on the other side of the frames to square the tower Fit two additional end frames ensuring the frame interlock clips are engaged Fit two diagonal braces blue in opposing directions between the 1st and the 3rd rungs Ensure the frames are vertical and level by checking with a spirit level and setting the adjustable legs as required INTERLOCK CLIP Locked Unlock...

Page 15: ...ower as shown Climb the ladder and from the protected trapdoor position fit guardrails on the 5th and 6th rungs in that order on both sides of the platform Do not climb onto the deck until all guardrails are in place When horizontal braces are fitted as guardrails they should be 0 5m and 1 0m 1 and 2 rungs above the platform level in all cases Remove the temporary deck from the lowest rung Fit sta...

Page 16: ...deck alongside it with the hinges towards the outside of the tower and the trapdoor next to the ladder Add two more diagonal between the 7th and 9th rungs as shown Climb up the ladder and from the protected trapdoor position fit the guardrails on the 9th and 10th rungs in that order on both sides of the tower Fit the next pair of diagonal braces in opposing directions between the 3rd and 5th rungs...

Page 17: ...r position Do not climb onto the deck until all guardrails are in place Continue until the required height is reached Re position the fixed deck to the required platform height and fit a trapdoor deck alongside it as shown in Stage 7 Fit a single diagonal at the top of the tower as shown in Stage 7 Fit the final guardrails as shown in Stage 7 Fit toe boards The tower is now complete 2 Building the...

Page 18: ...astors see diagram Step 1 page 11 Base plates can be fitted to the adjustable legs if it is not necessary to move the tower Fit two horizontal braces to the 850 end frames as shown in Steps 2 and 3 for the 1450 tower procedure pages 11 and 12 Fit a trapdoor deck on the 2nd rung Fix the horizontal braces red as guardrails on the 3rd and 4th rungs 2 and 4 rungs above the platform on both sides of th...

Page 19: ...notes on page 9 Fit the next pair of end frames and check the frame interlock clips are engaged Important Only use the adjustment on the legs to level the tower and not to gain extra height Fit two pairs of diagonal braces in opposing directions between the 3rd and 5th rungs and the 5th and 7th rungs Locate a trapdoor deck on the 6th rung with the trapdoor next to the ladder 2 Building the Tower 3...

Page 20: ...on previous steps At every platform level add horizontal braces as guardrails from the protected position within the trapdoor as shown in Step 5 Fit two diagonal braces at the top of the tower as shown Fit the toe boards The tower is now complete 2 Building the Tower 2 6 Dismantling To dismantle the tower reverse the assembly procedure When removing the guardrails unlock the four claws furthest fr...

Page 21: ...lations may also specify other information to be supplied to the user These regulations must be followed 3 2 Pre Use Checklist Tower upright and level to within 0 6 Castor brakes locked All interlock clips engaged Braces Guardrails correctly positioned All claws latched All platform wind latches engaged Correct stabiliser size fitted and positioned Toe boards fitted to working platform Instruction...

Page 22: ...eeded See tower designation Do not use boxes stepladders or other objects to gain extra height The adjustable legs are for levelling the tower only They must not be used to gain extra height Beware of horizontal forces that might cause instability Maximum horizontal force 30kg Beware of high winds This tower has been assessed as a freestanding structure for wind loads equating to 27mph 43kph 12m s...

Page 23: ...designed to be lifted or suspended Ensure there are no persons tools or materials on the tower Release the castor brakes Release the stabiliser top clamp to allow the feet to be raised a maximum of 25mm Re tighten the clamps During The tower must be moved only by manual effort pushing at the base of the tower Constant attention must be given to the position of the castors stabiliser feet and the t...

Page 24: ... 0845 766 7799 any comments If you have any suggestions to enable us to improve the information within this guide please e mail your comments to the Safety Guide Manager at the address below e mail safety hss com Building 2 Think Park Mosley Road Manchester M17 1FQ www hss com Safety Value Availability Support hss com 08457 28 28 28 in partnership with PN03299400_HSS 2021 WernerCo Rev B 11 21 ...

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