4
Table 1
Load
hook
Max. load t
0,25
0,5
1
2
3
5
10
20
Model
PCB-S1
PCB-S1
PCB-S1
PCB-S1
PCB-S1
PCB-S1
PCB-S1
PCB-S1
Dimension I nominal mm
24
25,5
30
38,5
41,5
47
55
84
Dimension I max mm
26,4
28,0
33
42,3
45,5
51,7
60,5
92,4
Dimension K nominal mm
15
19
25
33,5
39
44,5
62
93
Dimension K min mm
13,5
17,1
22,5
30,2
35,1
40,0
55,8
83,7
Checks on load chain
(see Fig. 5 and Table 2)
Inspect the load chain over its whole length to detect any deformed or otherwise damaged links. Make a check measurement of suspect links.
Measure the worn areas Also, every 300 mm (normally), make check measurements of the internal length of 5 links (pitch dimension 5xP – ac
-
cording to Table 2).
Fig 5 Checking chain dimensions
Table 2
Load chain
Max. load t
0,25
0,5
1
2
3
5
10
20
Model
PCB-S1
PCB-S1
PCB-S1
PCB-S1
PCB-S1
PCB-S1
PCB-S1
PCB-S1
Link diameter nominal mm
4,0
5,0
6,3
8,0
10,0
9,0
10,0
9,0
Link diameter min. mm
3,6
4,5
5,7
7,2
9,0
8,1
9,0
8,1
Pitch dimension (5xP) nominal mm
60,0
75,0
95,0
120,0
150,0
135,0
150,0
135,0
Pitch dimension (5xP) max. mm
61,8
77,2
98,0
123,5
154,5
139,0
154,5
139,0
The load chain must be discarded and replaced if:
•
cracks are detected on any link
•
any link is deformed or otherwise damaged
•
The minimum value of any link’s diameter falls short
•
the maximum value of the pitch dimension is exceeded at any point
•
the chain is damaged by overheating or has been affected by weld splatter
Load chains must
not
be repaired – they must be replaced by new chain. If it is desired to lengthen the chain, it must be replaced by a new and
longer chain.
Replacement of the chain shall be performed professionally by an authorized repairer and the chain must meet the requirements stated in the
standard EN 818-7 from the following manufacturers: Chaineries Limousines, Pewag, Thiele or Rud
Repairs
The chain block must not be modified. Repairs must be carried out by specialists. Damaged parts must only be replaced with original Powertex
spare parts. Order them through your dealer.
