SAFETY FIRST
Lifting of Individual Tower Components
- Raising and lowering components, tools and/or materials by rope should be conducted within the tower base (i.e.
within the area bounded by the stabilisers). Ensure that the safe working load of the supporting decks and the tower
structure is not exceeded.
Movement of the assembled prefabricated tower scaffold
- The BoSS StairMAX 700 Mk2 tower system MUST NOT be moved once erected.
- Always dismantle it and rebuild at the new location.
- The pre-use checklist on the final page shall be used to determine tower integrity.
Maintenance - Storage - Transport
- 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 shall be replaced. Adjustable leg threads
should be cleaned and lightly lubricated to keep them free running.
- Brace claws, frame interlock clips, trap door latches, Cam-Locks and platform wind locks should be regularly
checked to ensure they lock correctly.
- Refer to the BoSS Inspection Manual for detailed inspection and maintenance advice:
www.bossaccesstowers.com
- Components should be stored in clean, dry conditions with due care to prevent damage.
- Ensure components are not damaged by excessive strapping forces when transported.
During Assembly, Use and Dismantling
- As part of the risk assessment, wind conditions must be taken into account and reviewed regularly, depending on
the duration the structure is on site.
- The structure has been assessed for wind loads equating to 27 mph (43 kph, 12 m/s).
- The effect of on-site wind conditions must be considered prior to the assembly of a tower. The tower must not be
used in wind speeds above this. If greater wind speeds are forecast, the tower must be dismantled while it is still safe
to do so.
- Sheets, tarpaulins, cladding or similar, must not be attached to the tower as these will significantly increase any side
loads from wind and will potentially make the tower unstable.
- Beware of wind turbulance and funnelling effects around buildings.
- Excessive side loads from working on the tower, i.e. through drilling or pulling, may also make a tower unstable.
The maximum allowable side load on a tower is 30kg.
- Do not abuse equipment. Damaged, incorrect or incompatible components should not be used.
-
CAUTION:
Always ensure the portal ladder is in closed position when descending the tower. If the portal ladder is in
open position, from the protected position of the trap door deck (i.e. seated), close the portal ladder ensuring the
locking claw has been fully engaged.
Ties
This structure is designed to be self-supporting under the loading condition requirements of BS 1139-6:2014 and does
not require tying in. Consideration should be given to potential wind conditions if the tower is left unattended - see
'During Assembly, Use and Dismantling' section above.
Designation Safe Loading Plate
In accordance with BS1139-6:2014, the 'Designation & Safe Loading Plate' information shall be affixed to the base of
the prefabricated tower scaffold by means of the Scheme drawing and the Handover Certificate. They must be clearly
visible so that end users are aware of the conditions of safe use.
FILE: S140017
Drawn: 03/05/2016
Page: 4 OF 17
Issue: C
BoSS StairMAX 700 Mk2 (Cam-Lock Guardrail)
BoSS IS A REGISTERED TRADEMARK OF YOUNGMAN GROUP LTD
©
YOUNGMAN GROUP LTD - 03/05/2016
FOR UP TO DATE INFORMATION ON THIS PRODUCT CHECK
www.bossaccesstowers.com
