M
AINTENANCE
8.17. Check the hook, shackle and
eyelets
Check load and support hook
If the dimension
x
,
y
or
h
of the load hook (support hook) is outside
of the limit value, the hook must be replaced.
Figure 17: Check dimensions of load hook (sup-
port hook)
Dimension
x
max
Dimension
y
min
Dimension
h
min
148,2 mm
113,0 mm
81,0 mm
Checking axial clearance
If the axial clearance
between the installed hook/clevis and bottom block
increases rapidly, it must be assumed that the
hardened surfaces of the mount are worn. The
worn parts of the mount must then be replaced
immediately. The actual dimensions of the mount
must be measured and recorded before initial op-
eration. Following repair or overhaul of the mount,
the actual dimensions must be determined again.
Rapid wear can be detected quickly due to the
rapid increase in the dimension
z
. The point of de-
parture is the actual measured dimension in new
condition.
Figure 18: Permissible maximum dimension of the
axial clearance
z
Date
Axial clearance
z
Actual dimensions
for new device
Doc.-No.: VA049318-10-OM-EN-0319-64-2
Page
55
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