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12.2
Checking the load chain
CAUTION!
The load chain must be tested over its entire length!
The measure of the load chain must be carried out especially in the areas which are subject to the highest
wear. Through the lifting movement, these are the contact points of the chain with sprocket wheel and
deflection pulleys.
acc. DIN 685-part 5
L11 = pitch increase over 11 chain links
L1 = pitch increase over 1 chain link
dm= detected link diameter (d1+d2)/2
Chain dimensions
Table 1
Dimensions
mm
3x9
L11
105,6
L1
9,9
dm
2,7
Table 2
Dimensions
mm
7,1x21
L11
238,5
L1
22,3
dm
6,4
WARNING!
When the dimensions listed in the table are reached due to wear or deformation, the chain must be
replaced!
12.3
Checking the load hook
Load hook
X = measuring distance hook mouth width
Y = measured length from hook no. 6
H = thickness of hook saddle
Table 1
Dimensions
mm
0,25t/1
0,5t/1
X or Y
28/38,4
28/38,4
H
19,3
19,3
Dimensions in the tables are theoretical values without tolerances.
CAUTION!
When the dimension of hook opening width is deformed more than 10% or when the dimension of the hook
bottom thickness is fallen short of by 5% due to wear, the hook must be replaced.
12
4x12
4,2x12,2
5x15
136,6
138,2
170,6
12,7
12,8
15,7
3,6
3,8
21,2
7,9x23
8x24
9x24,8
260,6
272,1
281,2
24,1
25,3
26,1
7,1
7,2
8,1
Capacity/chain falls
1t/1
1,5t/1
32/43,4
36/48,9
25,1
28,8
Illustration 5
Illustration 6
Chain size
5,6x15,8
5,6x17
179,1
194,2
16,6
18
5,0
5,0
Chain size
9x27
10x28,1
300,8
318,6
28,1
29,6
8,2
9,0
Illustration 7
2t/2
3t/2
5t/2
40/55,4
44/63,6
50/74,8
33,4
39,2
44,5
6x18
6,3x19,1
7,1x20,1
203,9
216,4
227,9
18,9
20
21,2
5,4
5,7
6,4
10x30
13x36
16x45
340,7
408,3
505,6
31,8
37,9
47,4
9,0
11,9
14,4
Please fill in the measured
values before
commissioning:
Capacity
X or Y
H
5.52.189.00.01.05
t
mm
mm
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