BoSS Ladderspan
User Guide
youngmangroup.com
youngmangroup.com
Always start with the smallest height frames at the base of the
tower:
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
1.2,3.2,5.2,7.29.2,11.2
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 a 3.2m platform height tower
starting with an 4 rung frame.
1
Insert adjustable leg/castor assemblies into end frames and
lock the castors, see diagram
Step 1
(page 17). Base plates
can be fitted to the adjustable legs if it is not necessary to move
the tower. Fit 2 horizontal braces to the 850 end frames as shown
in
steps 2 and 3
for the 1450 tower procedure (page 18).
2
Fit a trapdoor deck on the 2nd rung. Fix the horizontal
braces (red) as guardrails on the 3rd and 4th rungs (2 and 4
rungs above the platform) on both sides of the tower.
Assembly Procedure
Mobile Towers - 850 3T Method
ASSEMBLY FOR 850 TOWERS
24
3
Fit 2 diagonal braces in opposing directions between the
1st and 3rd rungs. Ensure the frames are vertical and level
by checking with a spirit level and setting the adjustable legs as
necessary. Fit stabilisers (see notes on
page 30
). Fit the next pair
of end frames and check the frame interlock clips are engaged.
IMPORTANT. Only use the adjustment on the legs to level the
tower and not to gain extra height.
25
Assembly Procedure
4
Fit 2 pairs of diagonal braces in opposing directions
between the 3rd and 5th rungs and the 5th and7th rungs.
Locate a trapdoor deck on the 6th rung, with the trapdoor next to
the ladder.
Assembly Procedure
26
