Altrad BOSS CLIMA TOWER Series User manual

LIGHT ACCESS
BOSS CLIMA TOWER
User Guide
LW.LH/10.21

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Shaping The Future Of Construction & Industry.

Safety First
Introduction ..............................................................................................................................................................3
Compliances .............................................................................................................................................................3
Preparation & Inspection ......................................................................................................................................3
Safe Use.....................................................................................................................................................................4
Lifting of Equipment................................................................................................................................................4
Stabilisers/Ballast.....................................................................................................................................................5
Movement .................................................................................................................................................................5
During Use ................................................................................................................................................................6
Ties ..............................................................................................................................................................................7
Maintenance - Storage - Transport.....................................................................................................................7
Quantity Schedule
1450 Width Towers...........................................................................................................................................9-12
850 Width Towers .......................................................................................................................................... 13-16
Assembly Procedure
Assembly and Dismantling Procedures ...........................................................................................................17
To Dismantle a BoSS Ladderspan Tower ........................................................................................................17
Checklist...................................................................................................................................................................18
Assembly for 1450 Towers........................................................................................................................... 19-26
Assembly for 850 Towers ............................................................................................................................. 26-30
Toeboards - Mobile Towers 3T Method
Fitting Toeboards...................................................................................................................................................31
Stabilisers and Outriggers - Mobile Towers 3T Method
Stabilisers ................................................................................................................................................................32
Stabiliser Dimensions...........................................................................................................................................32
Outriggers................................................................................................................................................................32
Disclaimer & Copyright
Disclaimer................................................................................................................................................................33
Copyright .................................................................................................................................................................33
Contents

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Safety First
Introduction
Compliances
Preparation & Inspection
Please read this Userguide carefully. Please note that diagrams are for illustrative purposes only.
User guides are also available - please contact us for more details.
BoSS mobile aluminium towers are light-weight scaold 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.
This User Guide provides you with step by step instructions to ensure your system is assembled
easily and safely using the 3T (Through The Trapdoor) method.
The law requires that personnel erecting, dismantling or altering towers must be competent. Any
person erecting a BoSS mobile tower must have a copy of this guide. For further information on
the use of mobile access and working towers, consult the PASMA operators‘ code of practice.
The BoSS Clima aluminium system has been tested and certied
to EN 1004: 2004 Class 3
Inspect the equipment before use to ensure that it is not damaged and that it functions properly.
Damaged or incorrect components should not be used.
Instruction Manual EN 1298-IM-EN

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Safety First
Lifting of Equipment
Safe Use
• Check that all components are on site, undamaged and that they are functioning correctly
- (refer to Checklist and Quantity Schedules). Damaged or incorrect components should not
be used.
• Check if the ground on which the mobile access tower is to be erected and moved is capable
of supporting the tower.
• The safe working load is 275 kgs (606lbs) per platform level, uniformly distributed up to a
maximum of 950kgs (2100lbs), per tower (including self weight).
• Towers must always be climbed from the inside using the built-in ladder during assembly
and use.
• It is recommended that towers should be tied to a solid structure when left unattended.
• Adjustable legs should only be used for levelling.
• Tower components should be lifted using a reliable lifting material (e.g. strong rope),
employing a reliable knot (e.g. clove hitch), to ensure safe fastening and always lift within the
footprint of the tower.
• Assembled mobile towers

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Safety First
Stabilisers / Ballast
Movement
• Stabilisers or outriggers and ballast weights should always be tted when specied.
• The Quantity Schedules show the recommended stabilisation. In circumstances where there
is restricted ground clearance for stabilisers/outriggers, contact your supplier for advice.
Ballast must be made up of solid materials (i.e. not water or loose sand) and should not be
positioned to overload individual legs. Ballast should be secured against accidental removal
where practicable, and be supported on the lowest rung of the bottom frame.
• The tower should only be moved by manual eort, and only from the base.
• Beware of live electrical apparatus when moving the tower (particularly overhead), plus wires
or moving parts of machinery.
• No person or materials should be on the tower during movement.
• Caution should be exercised when wheeling a tower over rough, uneven or sloping ground,
taking care to unlock and lock castors. If stabilisers are tted, they should only be lifted a
maximum of 25mm above the ground to clear ground obstructions.
• The overall height of the tower when being moved should not exceed 2.5 times the
minimum base dimensions, or 4 metres overall height.
• Before use, check that the tower is still correct and complete.
• After every movement of the tower, use a spirit level to check that it is vertical and level and
set the adjustable legs as required.
• Do not move the tower in wind speeds over 7.7 metres per second (17mph).

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Safety First
During Use
• Beware of high winds in exposed, gusty or medium breeze conditions. We recommend that
in wind speeds over 7.7 metres per second (17 mph), cease working on the tower and do
not attempt to move it. If the wind becomes a strong breeze (expected to reach 11.3 metres
per second - 25 mph) tie the tower to a rigid structure. If the wind is likely to reach gale force
(over 18 metres per second - 40 mph), the tower should be dismantled.
• Beware of open ended buildings, which can cause a funnelling eect.
• Do not abuse equipment. Damaged or incorrect components should not be used.
• Raising and lowering components, tools, and/or materials by rope should be conducted
within the lower base. Ensure that the safe working load of the supporting decks and the
tower structure is not exceeded.
• The assembled tower is a working platform and should not be used as a means of access or
egress to other structures.
• Beware of horizontal forces (e.g. power tools) which could generate instability. Maximum
horizontal force 20kg.
• The stairway towers, (featuring an inclined staircase access) are for frequent use by
personnel carrying tools and/or materials.
• Mobile towers are not designed to be suspended - please refer to your supplier for advice.
• Do not use boxes or stepladders or other objects on the platform to gain extra height.
Wind
Description
Beaufort
Scale
Beaufort
No.
Speed In
MPH
Speed In
M/sec
Medium
Breeze
Raises dust and
loose paper, twigs
snap off
48-12 4-6
Strong
Breeze
Large branches in
motion, telegraph
wires whistle
625-31 11-14
Gale
Force Walking is difficult 839-46 17-21

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Safety First
Ties
Maintenance - Storage - Transport
• Ties should be used when the tower goes beyond its safe height, beyond the limits of the
stabilisers/outriggers or if there is a danger of instability. They should be rigid, two way ties
fastened to both uprights of the frame with load-bearing right angled or swivel couplers. Only
couplers suitable for the 50.8mm diameter tube of the tower should be used. Ideally, ties
should be secured to both faces of a solid structure by means of anchorages.
• The tie frequency may vary depending on the application, but they should (at a minimum) be
every 4 metres in height.
• For further information on tying-in a tower please contact your supplier or BoSS.
• All components and their parts should be regularly inspected to identify damage; particularly
to joints. Lost or broken parts should be replaced, and any tubing with indentation greater
than 5mm should not be used and put to one side for manufacture repair. Adjustable leg
threads should be cleaned and lightly lubricated to keep them free running.
• Brace claws, frame interlock clips, trapdoor latches and platform windlocks should be
regularly checked to ensure they lock correctly.
• Refer to the BoSS Userguide for detailed inspection and maintenance advice.
• Components should be stored with due care to prevent damage.
• Ensure components are not damaged by excessive strapping forces when transported.

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Safety First

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Quantity Schedule - 1450 Width Towers
BoSS Clima 1450 to EN 1004: Available in 2 lengths - 1.8m and 2.5m Internal/External Use - Towers under 2.5m are outside of the scope of EN 1004 Internal Use
IMPORTANT: Please ensure you also read the other Quantity Schedules *If you are unable to position the working platform easily from the ground, you may heighten. Requires an additional xed platform for this tower weight

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Quantity Schedule - 1450 Width Towers
BoSS Clima 1450 to EN 1004: Available in 2 lengths - 1.8m and 2.5m Internal/External Use - Towers under 2.5m are outside of the scope of EN 1004 Internal Use

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Number Of Working Platforms Allowed
Platform Loading
The maximum safe working load (the combined weight of the users, tools and materials) that may
be placed on the tower is the total weight less than the self weight of the tower. The total weight
for the towers shown in the schedule is 950kg.
Example 1:
A 1450 tower built using the 3T method with a 4.2m platform height and a platform length of
1.8m has a self weight of 180kg.
950kg - 180kg = 770kg maximum safe working load
total weight self weight (users, tools and materials)
Example 2:
A 1450 tower built using the 3T method with a 11.7m platform height and a platform length of
2.5m has a self weight of 449kg.
950kg - 449kg = 501kg maximum safe working load total weight self weight (users, tools and
materials)
For greater heights and loads, consult BoSS for guidance.
On a 1450 tower, a platform may comprise of a single deck or two decks placed side by side. The
maximum safe working load (the combined weight of the users, tools and materials) that may be
placed on a platform is 275kg. This must be evenly distributed over either one deck, or two decks
placed side by side.
The quantities on pages 7 and 8 will enable BoSS towers to be built safely and therefore comply
with the requirements of the Work at Height Regulations. They include double guardrails to all
platforms. Toeboards will need to be added if any levels are used as working platforms and for
storage of materials. EN 1004 requires platforms at least every 4.2m, and these measures will
exceed that requirement.
Quantity Schedule - 1450 Width Towers

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Ballast : Internal / External Use
Mobile Outriggers
Stabilisers
Double Width 1450 Tower Dimension X
There is no requirement for ballast on 1450 towers if using stabilisers as detailed in the table on
page 10.
MP16 outriggers can be used instead of SP15 stabilisers, as detailed below. Mobile outrigger kits
comprise of:
To improve rigidity, larger stabilisers can be
used at a lower level than shown in the table
on page 10.
Quantity Schedule - 1450 Width Towers
Mobile Outrigger Kit
MP 16 Mobile Outrigger 4
125/150/20mm Castor
(Use same diaeter castors as on tower) 4
250mm Adjustable Leg 4
Plan Braces 4
The above components replace:
SP15 Stabiliser 4
Platform Length 1.8m Platform Length 2.5m
SP7 X = 3351 X = 3629
SP10 X = 4789 X = 5100
SP15 X = 5520 X = 5838
Angle Of Stabiliser 1450 Tower

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Quantity Schedule - 850 Width Towers
BoSS Clima 850 to EN 1004: Available in 2 lengths - 1.8m and 2.5m Internal/External Use - Towers under 2.5m are outside of the scope of EN 1004 Internal Use
IMPORTANT: Please ensure you also read the Quantity Schedule on page 12. * If you are unable to position the working platform easily from the ground, you may require an additional xed platform for this tower height.

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Quantity Schedule - 850 Width Towers
BoSS Clima 850 to EN 1004: Available in 2 lengths - 1.8m and 2.5m Internal/External Use - Towers under 2.5m are outside of the scope of EN 1004 Internal Use

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Number Of Working Platforms Allowed
Platform Loading
The maximum safe working load (the combined weight of the users, tools and materials) that may
be placed on the tower is the total weight less than the self weight of the tower. The total weight
for the towers shown in the schedule is 950kg.
Example 1:
A 850 tower built using the 3T method with a 4.2m platform height and a platform length of 1.8m
has a self weight of 151kg.
950kg - 151kg = 799kg maximum safe working load
total weight self weight (users, tools and materials)
Example 2:
A 850 tower built using the 3T method with a 11.7m platform height and a platform length of
2.5m has a self weight of 408kg.
950kg - 408kg = 542kg maximum safe working load total weight self weight (users, tools and
materials)
For greater heights and loads, consult Youngman for guidance.
On an 850, tower a platform comprises of a single deck only. The maximum safe working load (the
combined weight of the users, tools and materials) that may be placed on a platform is 275kg,
evenly distributed over the deck.
The quantities on pages 13 and 14, will enable BoSS towers to be built safely and therefore
comply with the requirements of the Work at Height Regulations 2005. They include double
guardrails to all platforms, and toeboards will need to be added if any levels are used as working
platforms and for storage of materials.
EN 1004 requires platforms at least every 4.2m, and these measures will exceed that
requirement.
Quantity Schedule - 850 Width Towers

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Ballast : Internal / External Use
Mobile Outriggers
Stabilisers
Single Width 850 Tower Dimension X
There is no requirement for ballast on 850 towers if using stabilisers as detailed in the table on
page 14.
MP16 outriggers can be used instead of SP15 stabilisers, as detailed below. Mobile outrigger kits
comprise of:
To improve rigidity, larger stabilisers can be
used at a lower level than shown in the table
on page 14.
Quantity Schedule - 850 Width Towers
Mobile Outrigger Kit
MP 16 Mobile Outrigger 4
125/150/20mm Castor
(Use same diaeter castors as on tower) 4
250mm Adjustable Leg 4
Plan Braces 4
The above components replace:
SP15 Stabiliser 4
Platform Length 1.8m Platform Length 2.5m
SP7 X = 2994 X = 3201
SP10 X = 4458 X = 4734
SP15 X = 5195 X = 5485
Angle Of Stabiliser 850 Tower

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Assembly and Dismantling Procedures
To Dismantle A BoSS Ladderspan Tower
Assembly Procedure - Mobile Towers - 3T Method
• To comply with the Work at Height Regulations we show assembly procedures with platforms
every 2 metres in height, and, the locating of guardrails in advance of climbing onto a platform to
reduce the risk of a fall.
• All platforms feature double guardrails on both faces of either individual platforms or fully
decked levels.
• All guardrails should be 2 and 4 rungs (0.5m and 1.0m) above platforms.
• Never stand on an unguarded platform positioned above the rst rung of a tower. If your risk
assessment shows it necessary, you may also need to guardrail platforms at this level.
• Always start building with the smallest height frames at the base of the tower:
• Remove toeboards, and pass down the tower.
• Unclip farthest end of braces and immediately go to protected trapdoor position on ladder to
complete removal.
• Remove upper platforms from protected platform levels below.
• Pass removed components out of the tower to a colleague.
Where all 3 frame heights are used in a tower, start with 4 rung frames at the base, with the 6
rung frames next and the 8 rung frames on the top. Refer to the quantity schedules for detail.
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 rung
2.7, 4.7, 6.7, 8.7, 10.7 3 rung
1.2, 3.2, 5.2, 7.2, 9.2, 11.2 4 rung

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Assembly and Dismantling Procedures
Assembly Procedure - Mobile Towers - 3T Method
Ensure horizontal braces and guardrails are fitted correctly. Always fit as shown.
Refer to this checklist before using each time.
Checklist
• Ensure all brace claws operate and lock correctly prior to erection
• Inspect components prior to erection
• Inspect tower prior to use
• Tower upright and level
• Castors locked and legs correctly adjusted
• Diagonal braces tted
• Stabilisers/outriggers tted as specied
• Platforms located and windlocks on
• Toeboards located
• Check guardrails are tted correctly. See illustration below.

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Assembly for 1450 Towers
Assembly Procedure - Mobile Towers 1450 3T Method
Always start building with the smallest height frames at the base of the tower:
Where all 3 frame heights are used in a tower, start with 4 rung frames at the base, with the 6
rung frames next and the 8 rung frames on the top. Refer to the Quantity Schedules for detail.
The procedure illustrated shows 4.2m platform height tower starting with a 4 rung frame.
BoSS recommend two persons are used to build BoSS Towers. Above 4m height, it is essential
that at least two persons are used. Only climb the tower from the inside.
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 rung
2.7, 4.7, 6.7, 8.7, 10.7 3 rung
1.2, 3.2, 5.2, 7.2, 9.2, 11.2 4 rung
1.
Push 4 castors onto 4 adjustable legs. Insert adjustable legs into 2 end frames as shown. Lock
castor brakes. Base plates can be tted to adjustable legs if it is not necessary to move the tower.