machine is on a severe slope.
If the tilt alarm sounds when the platform is raised, use extreme caution. Identify the condition of the
boom on the slope as shown below. Follow the steps to lower the boom before moving to a firm, level
surface. Do not rotate the boom while lowering.
a)
If the tilt alarm sounds with the platform uphill:
1)
Lower the upper boom;
2)
Lower the tower boom;
3)
Retract the upper boom.
b) If the tilt alarm sounds with the platform downhill:
1)
Retract the upper boom;
2)
Lower the tower boom;
3)
Lower the upper boom.
Do not raise the boom when wind speeds may exceed 12.5 m/s (28mph).
If wind speeds exceed 12.5 m/s (28mph) when the boom is raised, lower the boom and do not continue
to operate the machine. Do not operate the machine in strong or gusty winds. Do not increase the
surface area of the platform or the load. Increasing the area exposed to the wind will decrease machine
stability.
Table 1-3 Beaufort scale
Beaufort scale
Wind speed
Instruction
0 0
-0.2 m/s
0 -0.45mph
Calm
1
0.3 -1.5 m/s
0.67 -3.36mph
Light air
2 1.6
-3.3 m/s
3.58
-7.38mph
Light
breeze
3
3.4 -5.4 m/s
7.61 -12.08mph
Gentle breeze
4 5.5
-7.9 m/s
12.30
-17.67mph
Moderate
breeze
5
8.0 -10.7 m/s
17.90 -23.94mph
Fresh breeze
6 10.8
-13.8 m/s
24.16
-30.87mph
Strong
breeze
7
13.9 -17.1 m/s
31.09 -38.25mph
Moderate gale
8 17.2
-20.7 m/s
38.48
-46.30mph
Fresh
gale
9
20.8 -24.4 m/s
46.53 -54.58mph
Strong gale
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