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Safety
First
B.
WIND SPEED SAFETY RULES
1.
Beware of high winds in exposed, gusty or medium breeze conditions. We recommend that in wind speeds over 20.0 km/h,
cease working on the tower and do not attempt to move it. If the wind becomes a strong breeze, expected to reach 31.0 km/h,
tie the tower to a rigid structure. If the wind is likely to reach gale force, over 52.0 km/h, the tower should be dismantled.
2.
Wind force can be magnified by the tunneling effect of open ended building and unclad building
C.
LIFTING OF EQUIPMENT
1.
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.
2.
Assembled mobile towers should not be lifted with a crane or other lifting device.
D.
STABILISERS / BALLAST
1.
Stabilisers or outriggers and ballast weights shall always be fitted when specified.
2.
The Quantity Schedules show the recommended stabilisation. In circumstanced where there is restricted ground clearance for
stabilisers/outriggers, contact your supplier for advice.
E.
MOVEMENT
1.
The tower should only be moved by manual effort, and only from the base.
2.
Do not move the mobile scaffold tower with vehicles (e.g. lift trucks). Do not lift, pull or push the mobile scaffold tower with a lift
truck.
3.
When moving the tower, always beware of any live electrical apparatus, overhead cables or moving parts of machinery.
4.
Ensure that the platforms are free of persons and equipment and that brake locks are off prior to movement.
5.
Caution should be exercised when wheeling a tower over rough, uneven or sloping ground, taking care to unlock and lock
castors. If stabilizers are fitted, they should only be lifted a maximum 25mm above the ground to clear ground obstructions.
6.
The overall height of the tower when being moved, should not exceed 2.5 times the minimum base dimensions, or 4 metres
overall height.
7.
Before use, check the tower is still correct and complete.
8.
After every movement of the tower use a spirit level to check that it is vertical and level and set the adjustable legs as required.
9.
Do not move the tower in wind speeds over 20 km/hour .
Beaufort
Scale
WIND
DESCRIPTION
SPEED
In km/h.
SPEED
In m/s.
GENERAL EFFECT
ACTION
0-3
Light Breeze
＜
2-19`
＜
0.6-5.3`
Raises Dust
No action required
4
Moderate
Breeze
20-30
5.6-8.3
Loose paper,
Twigs snap off
Cease working on
tower and do not
attempt to move it
5-6
Strong Breeze
31-51
8.6-14.2
Large branches in motion
move.
Telephone wires whistle.
Tie the tower to a
rigid structure
＞
6-8
Gale Force
52-75
14.4-20.8
Walking progress impeded
Dismantle tower if
such conditions are
expected
