7
Inspection and maintenance
03.2018
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7.14.7
Inspection and maintenance of rope sheave
1.
Check rope sheaves for wear.
We recommend having them checked by a qualified person. They should also be
checked for easy running, indicating that the ball bearings are in good condition.
Wear on rope sheave
Notes on limits for wear
Rope sheave
Part no.
Ø D
t
min
h
max
h
new
[in]
01 430 01 53 0 3.86 0.157 0.51 0.43
01 430 04 53 0 3.94 0.157 0.51 0.39
01 430 00 53 0 4.92 0.157 0.55 0.47
22 330 00 53 0 5.51 0.157 0.63 0.55
01 430 06 53 0 6.06 0.157 0.85 0.77
03 330 20 53 0 6.30 0.157 0.75 0.65
24 330 00 53 0 7.87 0.217 0.94 0.83
01 430 05 53 0 8.58 0.217 1.04 0.96
01 430 03 53 0 8.86 0.217 0.94 0.83
03 330 40 53 0 9.84 0.217 1.1 0.98
25 330 00 53 0 14.76 0.256 1.48 1.34
25 330 03 53 0 14.76 0.256 1.42 1.28
46 330 00 53 0 15.75 0.276 1.32 1.18
26 330 01 53 0 17.72 0.394 1.54 1.38
09 430 00 53 0 17.72 0.394 1.54 1.38
46 330 01 53 0 18.9 0.394 1.44 1.28
On one side
and at base
On both sides
and at base
Measuring depth of base
of groove with depth gage
On both sides
and at base
Measuring thickness of wall
with special caliper gage
Tab. 40
Fig. 95
Fig. 96
The rope sheave must be replaced if the wall thickness as measured is <t min or the
groove depth as measured is > h max. Furthermore, the rope sheave must be replaced
when replacing the wire rope if the rope strands have dug into the base of the groove.
Impressions of single wires are acceptable.
A rope sheave must also be replaced if the radius of the base of the groove R has
become too small for the new rope due to reduction in diameter of the old rope or wear.
The negative profile of the rope in the base of the groove may provide optimum
contact to the wire rope currently fitted.
Rope sheaves should be rotated without load on the rope to check the easy
and concentric running of the bearings.
Bottom hook blocks
NOTICE
Danger of material damage.
The bottom hook block must be checked for damage.
Deformations, cracks and cuts caused by impact must be assessed. The damage can
only be assessed by
a qualified person.
