Zoomlion QY30V, Manual

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02-8 02-8
S a f e t y S a f e t y
Soil type Soil type
Load bearing capacity Load bearing capacity
kg/cm kg/cm
2 2
） ）
A A Back-filled, naturally compacted ground Back-filled, naturally compacted ground 0-1 0-1
B B
Natural, clearly undisturbed ground: Natural, clearly undisturbed ground:
1. 1. Mud, Mud, peat, peat, marshy marshy soil soil 0 0
2. 2. Non-cohesive Non-cohesive ground, ground, sufficient sufficient compactly compactly layered layered
soil soil
Fine to medium grained sand
Fine to medium grained sand
Coarse-grained sand to gravel Coarse-grained sand to gravel
1.5 1.5
2.0
2.0
3. 3. Cohesive Cohesive ground: ground:
Sludgy Sludgy
Soft
Soft
Firm
Firm
Semi-compact
Semi-compact
Hard
Hard
0 0
0.4 0.4
1.0
1.0
2.0
2.0
4.0
4.0
4. 4. Rock Rock with with few few fissures, fissures, in in healthy, healthy, unweathered unweathered
condition and in a favorable location: condition and in a favorable location:
In cohesive layer order
In cohesive layer order
In massive or column-style shape
In massive or column-style shape
15 15
30
30
C C
Artificially compacted ground: Artificially compacted ground:
1. 1. Asphalt Asphalt 5-15 5-15
2. Concrete 2. Concrete
Concrete group B I Concrete group B I
Concrete group B II
Concrete group B II
50-250 50-250
350-550 350-550
If there is any doubt about the load bearing capacity of the ground at If there is any doubt about the load bearing capacity of the ground at the placement site, the placement site,
soil tests should be carried out, f soil tests should be carried out, for example with a penetrometer. or example with a penetrometer.
Only strong materials may be used for the outrigger pad bases such as properly Only strong materials may be used for the outrigger pad bases such as properly
dimensioned wooden timbers. In order to ensure that pressure is evenly dimensioned wooden timbers. In order to ensure that pressure is evenly
distributed over the base surface, the outrigger pads must be positioned in the distributed over the base surface, the outrigger pads must be positioned in the
center of the suppor center of the suppor t base. t base.
2. 2.4.3 Supportin 4.3 Supportin g g
a) a) Before operation, Before operation, all all the w the wheels heels must must be be away away from from the gr the ground; ound;
b) b) Before extending Before extending the vertical the vertical outriggers, extend outriggers, extend the sliding the sliding beams to beams to the specified the specified
positions; positions;
c) c) All the All the sliding beams sliding beams must be must be extended according extended according to the to the data in data in the rated the rated lifting lifting
capacity table and secured by pins; capacity table and secured by pins;
d) d) Before operation, Before operation, the crane the crane must be must be leveled. Under leveled. Under any working any working conditions, the conditions, the
Caution Caution