pewag Winner pro G12 Originalbetriebsanleitung Seite 31

• Distortion of suspension components, accessories or the chain itself
• Chain stretch: if the length of the chain links is different or lack of mobility between the links or an obvious
difference between the individual strand lengths is observed, then it could be possible that the chain has been
stretched. The chain needs to be disposed of if the inner link pitch t>1,05t
of the chain link
• Wear: often occurs due to contact with other objects mostly on the surface of the chain links, thus being easily
identifiable and measurable; and between chain links where it is hidden. When carrying out the inspection, the
chain should be loose and the chain links rotated so that the measurable cross-section (e.g. one of the inner
contact surfaces of the chain link) lies exposed. The mean diameter d
diameter d . d is determined as the mean value of the diameters d
n m
corresponding cross section. The chain must be discarded if:
d + d
d = ≤ 0,9 d
1 2
m
2
Figure 17
Maximum permissible dimensional changes with regards to the nominal dimension:
Term
Chain
Ring
Hook *)
CW, CWP , CWI, CARW, CLW, DFW
BWW, GHW
Shackle, Unilock, KSCHW
SM, SMWF
n
Dimension
d
n
t
n
Wear of the corners
d
t
e
d and h
2
g
Halves mobile
e
c
e
d
d1
Angle change of
Bolts mobile
e
d, d , d and M
1 2
e
g
d
, whereby t equals the nominal pitch
n n
is permitted to be 90 % of the nominal
m
and d measured at right angles on the
1 2
Max. permissible change
-10 %
+5 w
d = d
n
-10 %
+10 %
+5 %
-10 %
+10 %
No change allowed
+5 %
-10 %
+5 %
-15 %
+5 %
<3°
No change allowed
+5 %
-10 %
+5 %
+10 %
-10 %
E
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