M
AINTENANCE
Checking axial clearance
If the axial clear-
ance of the installed load hook or clevis exceeds
the maximum clearance specified, the worn parts
must be replaced.
Figure 18: Permissible axial clearance
Permissible
maximum
dimension of the
axial clearance
z
3,5 mm
8.18. Check silencer
CAUTION
Danger from noise
By removing the silencer, the noise pressure level
of the product increases.
I
Always wear appropriate protection equipment
In addition to the scheduled inspection intervals,
the silencer should be inspected and its flow resis-
tance assessed whenever the hoist fails to reach
the specified lifting speed.
The test is performed by comparing the lifting
speeds under nominal load, with and without the
silencer. The speed must be at least 80% of the
lifting speed without a silencer element.
In the event of lower values, the silencer elements
must be cleaned or replaced.
Page
56
of 64
Doc.-No.: VA049318-20-OM-EN-0319-64-6
