Mobile Aluminium Tower
1450/850 Ladderspan
3T - Through the Trapdoor Method
USER GUIDE
Edition May 2010
Mobile Towers - 3T Method
INTRODUCTION
Please read this guide carefully.
Please note that diagrams are for illustrative purposes only.
User guides are also available to download from our website
at youngmangroup.com
BoSS mobile 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.
This User Guide provides you with step by step instructions to
ensure your system is erected 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 Youngman
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.
If you need further information, design advice, additional guides
or any other help with this product, please contact Youngman on
+44 (0)1621 745900 or email sales@youngmangroup.com
BoSS
COMPLIANCES
The BoSS Ladderspan aluminium system has been tested and
certified to EN 1004: 2004 Class 3
Instruction Manual EN 1298-IM-EN
PREPARATION AND INSPECTION
Inspect the equipment before use to ensure that it is not
damaged and that it functions properly. Damaged or incorrect
components shall not be used.
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Safety First
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 shall 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.
LIFTING OF EQUIPMENT
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 should not be lifted with a crane or
other lifting device.
BoSS Ladderspan
User Guide
youngmangroup.com
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