22
Beaufort
Scale
Meters Per
Second
Miles Per
Hour
Description
Ground Situation
0
0
-
0.2
0
-
0.5
Calm and
still
Smoke rises vertically.
1
0.3
-
1.5
1
-
3
Light winds
Smoke drift shows wind direction.
2
1.6
-
3.3
4
-
7
Light
breeze
Wind can be felt on face. Leaves rustle.
3
3.4
-
5.4
8
-
12
Gentle
breeze
Flag waves.
4
5.5
-
7.9
13
-
18
Gentle
breeze
Dust and loose paper scattered and small
branches start swaying.
5
8.0
-
10.7
19
-
24
Fresh
breeze
Small trees sway.
6
10.8
-
13.8
25
-
31
Strong
breeze
Umbrellas are hard to use, large branches
on trees move and whistling in overhead
lines
7
13.9
-
17.1
32
-
38
Moderate
gale
Trees sway. Difficult to walk in the wind.
8
17.2
-
20.7
39
-
46
Strong gale
Twigs and branches break off trees. Road
vehicles are blown off course due to the
wind.
9
20.8
-
24.4
47
-
54
Severe gale
Roof tiles blow off buildings.
3.7 Danger of unsafe operation
The machine should be operated in strict accordance with the requirements of this
manual and the maintenance manual, or if there are stricter industrial or local
regulations, the latter shall prevail.
Caution
Maximum gradeability
-
25%
The maximum gradeability applies to the machine with the
platform retracted.
The gradeability refers to the maximum allowable tilt angle when the machine is on solid
ground and the platform is carrying only one person. The rated gradeability of the slope will be
reduced when the platform increases in weight.
Danger of unsafe operation
★
Do not push or pull any objects outside the platform. Maximum allowable lateral force:
indoors
-
400 N; outdoors
-
200N.
★
Do not change any parts that may affect the safety and stability of the machine.
★
Do not use replacement parts of weights or specifications which are different from the
original key parts as it may affect the machine stability.
★
Do not modify or alter the aerial work platform without the manufacturer's prior written
