Youngman boss solo 700 User manual
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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 at a variety of heights.
The law requires that personnel erecting, dismantling,
altering or inspecting towers must be competent. Any
person erecting the product described in this user guide
must have a copy of this guide. For further information on
the use of mobile access and working towers consult the
PASMA operator’s code of practice or visit our website at
youngmangroup.com
If you need further information, additional guides or
any other help with this product, please contact
Youngman on +44 (0)1621 745900 or email
sales@youngmangroup.com
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Check that all components are on site, undamaged and
that they are functioning correctly – (refer to Checklist
and Quantity Schedules). Damaged or incorrect
components must never be used and segregated for
replacement, repair or destruction.
Ensure 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 (675lbs), per platform
level, uniformly distributed up to a maximum of 550kgs
(1213lbs), per tower.
Adjustable legs should only be used for levelling.
Do not use ladders, steps, boxes or similar, to gain
additional working height.
Mobile Access Towers are not designed to be lifted
or suspended.
Youngman Group strongly advises against the mixing
of tower components because of the potential safety
risks for users, and their inability to rely upon the
manufacturers Product Liability Insurance in the event of
an accident occurring as a result of mixing components
from different manufacturers. For more information visit
www.youngmangroup.com/about/mix-match-components
It is recommended that towers should be tied to a solid
structure when left unattended.
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Tower components should be lifted using the BoSS
SOLO 700 assembly bracket.
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 stabalisers). Ensure that
the safe working load of the supporting decks and the
tower structure is not exceeded.
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Towers should be moved with caution.
Before moving, check the suitability of the intended route
to ensure there are no obstructions, both at ground level
and overhead. Wind conditions must also be considered.
People and materials must be removed and the height of
the tower reduced to 4.0m.
Finally, the stabalisers should be left in position and
raised no more than 25mm from the ground.
The tower must only be moved by applying manual effort
at, or near, the base of the tower and you should ensure
there are sufficient operatives on hand to control the
movement of the structure.
After moving and before use, check the tower is still
correct and complete. Use a spirit level to ensure that it
is vertical and level, then adjust the legs as required.
Do not move the tower in wind speeds over 7.7 metres
per second (17mph).
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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 repair by the manufacturer.
Adjustable leg threads should be cleaned and lightly
lubricated to keep them free running.
Brace claws, frame interlock clips, trapdoor latches,
camlocks, claw mechanisms and platform windlocks
should be regularly checked to ensure they lock correctly.
Refer to the BoSS Inspection Manual and poster for
detailed inspection and maintenance advice:
youngmangroup.com/products/access-towers
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.
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The effect of on-site wind conditions must be considered
prior to the assembly of a tower.
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.
Wind conditions from funnelling effects, such as open
ended buildings, hangers or unclad buildings, must also
be considered prior to use as these wind effects can be
much greater.
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Medium
Breeze
Raises dust and
loose paper,
twigs snap off
4 8-12 4-6
Strong
Breeze
Large branches in
motion, telegraph
wires whistle
6 25-31 11-14
Gale Force Walking is difficult 8 39-46 17-21
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 20kg.
Do not abuse equipment. Damaged, incorrect or
incompatible compents should not be used.
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Inspect the equipment before use to ensure that it is not
damaged and that it functions properly. Damaged,
incorrect or incompatible components must not be used.
Complete towers, in accordance with EN1004, should
be stable in a free standing condition in a wind speed
that equates to 28mph or Beaufort force 6. If the wind
speed should exceed 17mph you should cease work upon
the tower. If the wind speed is expected to reach 25mph the
tower should be tied into a rigid structure. If it is expected to
reach 40mph the tower should be dismantled.
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You should tie in towers of all heights wherever
possible, as it is safe practice to do so. However,
where towers are left unattended or are to be located in
particularly exposed conditions, wind forces will almost
certainly affect stability. In these circumstances ensure
that the tower is adequately tied in or restrained from
blowing over and that the platforms are securely fixed, or
alternatively the tower dismantled.
For further information on tying-in a tower consult the
PASMA Technical/Safety Guidance Note:
“Tying Mobile Access Towers”
www.youngmangroup.com/products/access-towers
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1m END FRAME
CAM-LOCK
GUARDRAIL FRAME
FOLDING ALUMINIUM
TOE BOARD SET
ASSEMBLY BRACKET
1.3m TRAP DOOR DECK
SP4 STABILISER
HORIZONTAL BRACE
ADJUSTABLE LEG
AND CASTOR
FOLDING BASE UNIT
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The MAXIMUM SAFE WORKING LOAD (the combined
weight of the users, tools and materials) that maybe
placed on the tower is 550kg.
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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 the
whole platform level.
The quantity schedules shown in this user guide will
enable the tower to be built safely and therefore comply
with the requirements of the ‘Work at Height Regulations’.
Folding toe boards will need to be added if any levels are
used as working platforms or for storage of materials.
This tower system has been developed in accordance with
EN1004 for single person use. If the tower is to be used
with two people, SP10’s stabaliser must be fitted in place
of SP4 stabalisers.
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BoSS Solo 700 - 1.3m x 0.7m
3T Method Internal or external use
Working Height (m)
Component Platform Height (m)
4.2 5.2 6.2
2.2 3.2 4.2
Castor 4 4 4
Adjustable Leg 4 4 4
4 Rung End Frame (1.0m high x 0.7m wide) 4 6 8
Folding Base Unit 1 1 1
1.3m CamLock Guardrail Frame 3 5 6
1.3m Trap Door Deck 1 2 2
1.3m Horizontal Brace 1 1 1
Aluminium Folding Toe Board 1 1 1
Assembly Bracket 2 2 2
SP4 Telescopic Stabiliser 4 4 4
Total Self Weight of Tower (Kg) 93 121 134
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Stabalisers shall always be fitted when specified.
To improve stability, larger stabilisers can be used at a
lower level than shown in the quantity schedules.
Attach one stabiliser to each corner of the tower as
shown. Ensure stabiliser feet are equally spaced to form a
square.
SP4 and SP10 telescopic stabilisers must always be fully
extended.
Position the lower clamp so that the lower
arm is as close to horizontal as possible.
Adjust the position of the top clamp to
ensure the stabiliser foot is in contact with
the ground. Ensure clamps are secure.
When moving the tower, adjust the top clamps or the
telescopic leg, to lift the four stabiliser feet a maximum of
25mm off the ground and then unlock the castor brakes.
After moving ensure all four stabiliser feet are repositioned
in firm contact with the ground.
PLAN OF
TOWER
Free Standing Tower In a Corner
Against a Wall
PLAN OF
TOWER
PLAN OF
TOWER
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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 increase safety and reduce
the risk of a fall.
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.
The procedure illustrated shows a 6.2m working height
tower.
The BoSS SOLO 700 system has been developed so that
a single person can safely build the tower to a platform
height of 4.2m.
Insert castor into adjustable leg, apply brake by pushing
the lever down, release frame interlock clips and fit the
leg and castor assembly into a 1m base frame. Repeat with the
remaining legs and castors. Adjustable legs should only be
used for levelling.
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Folding base method:
Release brakes on castors at one end frame
until the locks will engage on the rear folding frame
Ensure both hinges positively lock into position
Engage brakes on second frame
Locate the horizontal brace on the lowest rung with
the hooks facing downwards - check the brace is
correctly locked on the tube at both ends. Check the base
unit is square and level using a spirit level. Adjust legs only
to level and not to gain additional height.
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From the ground level, position a trapdoor deck on
rung 8. Engage the windlocks. Locate Assembly
Bracket No. 1 on front face of lowest Cam-Lock Guardrail.
Locate the second Assembly Bracket on rung 10 of the
end frames.
Hang in order, 4 Cam-Lock Guardrail units on the front
Assembly Bracket and then 1 x Folding Toeboard.
Place the last Cam-Lock Guardrail on the end frame Assembly
Bracket No 2. Then hang two pairs of connected 4 rung
frames on the end bracket No 2. then hang the second
trapdoor deck on the bracket.
2 x GUARDRAIL
FRAMES
1 x GUARDRAIL FRAME
2 x 2 1m END FRAMES
1 x 1.3m DECK
1 x FOLDING
TOEBOARD
2 x GUARDRAIL
FRAMES
WARNING: ASSEMBLY BRACKETS ARE DESIGNED AND
INTENDED ONLY TO AID ASSEMBLY AND DISMANTLING.
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Add the connected
pairs of end frames
taking care to engage the
locking clips. Add a Cam-Lock
Guardrail to rungs 13 & 15
and lock.
Remove the end
frame assembly
bracket from rung 10 of
the end frame and
re-position on the top
Cam-Lock . Position the
folding toe board set and
then the remaining two
camlock frames on the
uppermost bracket.
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Place the trap door deck onto the 16th rung of the
tower and engage windlocks. Climb the end frame
from within and from the protected trap door position, fit
the Cam-Lock Guardrails as shown.
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Unclip the storage strap from the Folding Toeboard
Set, unfold and fit the toeboard into position on the
working platform. Move Assembly Brackets to base of the
tower and fit to the lowest rungs of the end frames.
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Simply follow the assembly steps in reverse, ensuring that
the 3T method is followed.
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Assemble the folding base frame with 1 trap door deck
placed on the bottom rung forming the base of the trolley.
Lower all adjustable legs as far as possible.
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