Youngman BoSS 850 Instruction Manual

Mobile aluminium tower 1450/850 ladderspan

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BoSS Ladderspan
User Guide
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1450/850 Ladderspan
3T - Through the Trapdoor Method
INSTRUCTION MANUAL

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Summary of Contents for Youngman BoSS 850

  • Page 1 BoSS Ladderspan User Guide 1450/850 Ladderspan 3T - Through the Trapdoor Method INSTRUCTION MANUAL...
  • Page 2: Safety First

    PASMA operators ' code of practice. If you need further information, design advice, additional guides or any other help with this product, please contact Youngman on +91-9015964626 or email sales@youngman.co.in. COMPLIANCES...
  • Page 3 Safety First SAFE USE Che ck that all components are on sit e, undamaged and th at they are functioning co rrect ly – (re fer to Che cklist and Quantity S chedules). Damaged or inco rrect components shall not be used.
  • Page 4 Safety First STABILISERS / BALLAST Stabilise rs or outri gge rs and ballast weights shall a lways be fitted when specified. The Quantity S chedules show the recommended stabilis ation. In circumstances where there is restricted ground clearance for stabilise rs/outrigge rs, contact your supplier for a dvic e. Ballast must be o f solid m aterials (i.
  • Page 5: During Use

    Safety First DURING USE Beware o f high winds in exposed, gusty or medium bree ze conditions. We recommend th at in wind speeds over 7.7 metres per second (17 mph), cease wo rking on the tower and do not attempt to move it.
  • Page 6: Maintenance - Storage - Transport

    4 metres height. For further information on tying-in a tower please contact your supplier or Youngman. MAINTENANCE - STORAGE - TRANSPORT All components and their pa rts should be regula rly inspected to identify damag e, pa rticula rly to joints.
  • Page 7 Safety First End Toeboard 4 Rung Ladder Frame Horizontal Brace 4 Rung Frame Side Toeboard Platform (Fixed and Trapdoor Decks) Diagonal Brace Stabiliser 2 Rung Frame Castor 2 Rung Ladder Frame Adjustable Leg...
  • Page 8 Quantity Schedule 1450 Width Towers BoSS Ladderspan Instruction Manual...
  • Page 9 Quantity Schedule 1450 Width Towers...
  • Page 10: Platform Loading

    514kg maximum safe working load total weight sel f weight (users, tools and materials) For gre ater heights and load s, consult Youngman for guidanc e. PLATFORM LOADING On a 1450 tower a pl atform may comprise o f a single de ck or two de cks placed side by sid e.
  • Page 11 Quantity Schedule 1450 Width Towers BALLAST: Internal/External Use There is no requirement for ballast on 1450 towe rs i f using stabilise rs as detailed in the ta ble on page 8. MOBILE OUTRIGGERS MP16 outri gge rs can be used instead o f SP15 stabilise rs, as detailed belo w.
  • Page 12 Quantity Schedule 850 Width Towers BoSS Ladderspan Instruction Manual...
  • Page 13 Quantity Schedule 850 Width Towers...
  • Page 14 540kg maximum safe working load total weight sel f weight (users, tools and materials) For gre ater heights and load s, consult Youngman for guidanc e. PLATFORM LOADING On an 850 tower a pl atform comprises o f a single de ck on ly. The...
  • Page 15 Quantity Schedule 850 Width Towers BALLAST: Internal/External Use There is no requirement for ballase on 850 towe rs i f using stabilise rs as detailed in the ta ble on page 12 MOBILE OUTRIGGERS MP16 mobile outri gge rs can be used instead o f SP15 telescopic stabilise rs respecti vely, as detailed belo w.
  • Page 16: Assembly Procedure

    Assembly Procedure Mobile Towers - 3T Method ASSEMBLY AND DISMANTLING PROCEDURES When building a BoSS Tower: To comp ly with the Work at Height R egulations we show assem bly procedures with pl atforms every 2 metres in height, and, the loc ating of guardrails in a dvance o f climbing onto a platform to reduce the risk o f a fall.
  • Page 17: Safety Checklist

    Safety Checklist Mobile Towers - 3T Method CHECKLIST Ensure all b race claws o perate a nd lock correctly prior to erection Inspect components prior to erection Inspect tower prior to use Tower upright and l evel Casto rs lo cked and legs co rrect ly adjusted Diagonal braces fitted Stabilise rs/outrigge rs fitted as specified Platforms loc ated and windlo cks on...
  • Page 18 Refer to the Quantity Schedules for detail. The procedure illustrated shows 4.2m platform height tower starting with a 2 rung frame. Youngman recommend two persons are used to build BoSS Towers. Above 4m height, it is essential that at least two persons are used.
  • Page 19 Assembly Procedure Fit one hori zontal brace (red) onto the vertical o f an span frame, just ab ove the bottom rung, with the claw facing outwards . The frame will now be self supporting. Position the ladder frame as shown and fit the other end o the horizontal brace on to the vertical, just ab ove the bottom rung.
  • Page 20 Assembly Procedure Fit 2 additional end frames ensuring the frame inte rlock clips are en gaged. Fit 2 diagonal braces ( blue) in opposing direction s, between the 1st and the 3rd rungs. Ensure the frames are vertical and l evel by checking with a spirit l evel and setting the adjusta ble legs as required.
  • Page 21 Assembly Procedure Fit a temporary deck on the lowest rungs. Fit a trapdoor deck on the 4th rung (2.0m) with the trapdoor next to the ladder. Ensure the trapdoor is positioned with the hinges towards the outside of the tower 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.
  • Page 22 Assembly Procedure Fit the next pair of diagonal braces in opposing directions between the 3rd and 5th rungs add 2 additional end frames. Add two more diagonal braces between the 5th and 7th rungs. If finishing at this height (4.2m platform),reposition the fixed deck to the 8th rung on the tower.
  • Page 23 Assembly Procedure When building beyond a 4.2m platform height. Continue to add pairs of end frames, diagonal braces and fit trapdoor decks as shown in the previous steps. Add guardrails at 0.5m and 1.0m, (in that order), above the platform from the protected trapdoor position. Do not climb onto the platform until it is fully guard-railed.
  • Page 24: Dismantling Procedure

    Assembly Procedure Fit toeboards (see Inst ructions on page 29). The tower is now complet e. Dismantling Procedure To take down the tower r everse the building sequenc e. When rem oving guardrail brace s, unlo ck the 4 claws furthest from the trapdoor and then retu rn immedi ately to the protected position within the trapdoo r.
  • Page 25 Assembly Procedure Mobile Towers - 850 3T Method ASSEMBLY FOR 850 TOWERS Always start with the smallest height frames at the base of the tower: Platform height in Metres Frame at base. 1.7, 2.2, 3.7, 4.2, 5. 7, 6.2 , 7.7, 8.2 , 9.7, 10.2 , 11 .7, 12. 2 2 R ung 2.7,4.7,6.7,8.7,10,7 3 R ung...
  • Page 26 Assembly Procedure Fit 2 diagonal braces in opposing directions between the 1st and 3rd rungs. Ensure the frames are vertical and l evel by checking with a spirit l evel and setting the adjusta ble legs as necessa ry. Fit stabilise rs (see notes on page 30). Fit the n ext pair of end frames and check the frame inte rlock clips are en gaged.
  • Page 27 Assembly Procedure Fit 2 pai rs o f diagonal braces in opposing directions between the 3rd and 5th rungs and the 5th and7th rungs. Loc ate a trapdoor de ck on the 6th rung, with the trapdoor n ext to the ladde r.
  • Page 28 Assembly Procedure Climb up the inside o f the tower and from the protected position o f the trapdoo r, fit guardrails to the 7th and 8th rungs, (in th at order), on both sides o f the towe r. BoSS Ladderspan Instruction Manual...
  • Page 29 Assembly Procedure Continue the procedure until the required wo rking height is rea ched, adding additional pai rs o f end frame s, diagonal braces and fitting trapdoor pl atforms, as shown on pr evious step s. At every pl atform level, add hori zontal braces as guardrails from the protected position within the trapdoo r, (as shown in step 5).
  • Page 30 Toeboards Mobile Towers - 3T Method FITTING TOEBOARDS Lock yellow plastic to eboard clips over rung and de ck claw as shown. Position as on right hand de ck claw. On other side of the working pl atform, position the clip as (B). Place 25mm thi ck toeboards into slots in to eboard clips as shown.
  • Page 31 Stabilisers and Outriggers Mobile Towers - 3T Method STABILISERS Attach one stabiliser to ea ch co rner of the tower as shown. Ensure stabiliser feet are equal ly spaced to form a squar e. SP10 and SP15 telescopic stabilise rs must a lways be ful ly extended.
  • Page 32 For further information about this product or any other products and services, please contact: Youngman India Pvt. Ltd Plot 14 Ecotech 1 Ext Greater Noida, Uttar Pradesh, India, 201310 +91-9015964626 +44 (0)1621 745900 sales@youngman.co.in +44 (0)1621 859845 Youngman are members of: youngmanmanufacturing.com...

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