SAFETY
TB24 Plus&26J Plus Operation Manual 3-5 © Jun 2022
JOBSITE HAZARDS
fold the platform and do not
continue to operate the machine.
• Do not drive or lift the machine on
slopes, steps or vaulted surfaces
that exceed the maximum
gradeability of the machine.
Before or during machine operation, check the possible
hazards on the jobsite and beware of the restrictions
within the environment, including flammable and
explosive gas/dust. If the machine is used in any other
applications, or by any other means, as specified by
Sinoboom, it must be approved or guided by the
manufacturer.
Table 3-3
BEAUFORT
NUMBER
METERS/
SECOND
MILE/
HOUR
DESCRIPTI-
ON
GROUND CONDITION
0 0～0.2 0～0.5 Calm
Calm. Smoke rises vertically.
1 0.3～1.5 1～3
Light air
Wind motion visible in smoke.
2 1.6～3.3 4～7
Light breeze Wind felt on exposed skin. Leaves rustle.
3 3.4～5.4 8～12
Gentle
breeze
Leaves and smaller twigs in constant motion.
4 5.5～7.9 13～18
Moderate
breeze
Dust and loose paper rise. Small branches begin
to move.
5 8.0～10.7 19～24 Fresh breeze
Smaller trees sway.
6 10.8～13.8 25～31
Strong
breeze
Large branches in motion. Flags waving near
horizontal. Umbrella use becomes difficult.
7 13.9～17.1 32～38
Near gale/
moderate
gale
Whole trees in motion. Effort needed to walk
against the wind.
8 17.2～20.7 39～46
Fresh gale Twigs broken from trees. Cars veer on road.
9 20.8～24.4 47～54
Strong gale Light structure damage.
NOTICE
Maximum gradeability is suitable for machines with
platform retracted.
Gradeability means the maximum allowable tilt angle
of the machine when it is on solid ground and the
platform is only capable of carrying one person. As
the weight of the machine’s platform increases, the
machine’s climbing capacity reduces.
Maximum gradeability：
Uphill：45%/24°
Downhill：30%/17°
Side slope：25%/14°
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