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When building a BoSS Tower:
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 1 and 2 rungs (0.5m and 1.0m) above
platforms.
Never stand on an unguarded platform positioned above the
first 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:
Platform Heights 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
Where all 3 frame heights are used in a tower, start with 2 rung
frames at the base, with the 3 rung frames next and the 4 rung
frames on the top. Refer to the quantity schedules for detail.
TO DISMANTLE A BOSS LADDERSPAN 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.
Assembly Procedure
Mobile Towers - 3T Method
Safety Checklist
Mobile Towers - 3T Method
ASSEMBLY AND DISMANTLING PROCEDURES
15
CHECKLIST
16
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 fitted
Stabilisers/outriggers fitted as specified
Platforms located and windlocks on
Toeboards located
Check guardrails are fitted correctly. See illustration below.
Ensure horizontal braces and guardrails are fitted correctly.
Always fit as shown.
Refer to this checklist before using each time.
Always start building with the smallest height frames at the
base of the tower:
Platform Heights 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
Where all 3 frame heights are used in a tower, start with 2 rung
frames at the base, with the 3 rung frames next and the 4 rung
frames on the top. Refer to the Quantity Schedules for detail.
The procedure illustrated shows 4.2m platform height tower
startingwith 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. Only climb the tower from the inside.
1
Push castor into adjustable leg. Push Castor /adjustable leg
assemblies into 2 rung span frame. Lock castors. Repeat
proceadure with 2 rung ladder frame.
It is recommended that for ease of levelling 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.
NB: Base plates can be tted to adjustable legs in lieu of
castors if it is not necessary to move the tower.
Assembly Procedure
Mobile Towers - 1450 3T Method
ASSEMBLY FOR 1450 TOWERS
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