Safety and operating instructions
50 © Anbaufräsen PC GmbH | 3390 5221 01 | 2020-09-07
Original Instructions
7.9 Check the round attack picks
and pick boxes
Check the round attack picks daily, before and after op-
eration.
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Check whether all round attack picks are in place.
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Check the round attack picks, and in particular the
tungsten carbide tips for wear and breakages.
The head lengths of the individual round attack picks
must be evenly worn, to avoid additional vibrations on
the cutter drums.
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If one or more round attack picks are worn, replace
them immediately.
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Check movement of round attack picks in the pick
boxes. The play of the pick shaft diameter in the pick
box must not exceed 0.3- times the pick shaft diame-
ter.
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If one or more round attack picks exhibit play of more
than 0.3- times the pick shaft diameter, have the pick
box or the wear sleeve immediately replaced.
Contact the authorized Customer Center / dealer in
your area.
7.10 Replace round attack picks
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You must replace the round attack picks:
- if the tungsten carbide tip is worn.
- if the head lengths of the round attack picks are dif-
ferent.
- in case of cracks between the shaft and the head.
DANGER Risk of death due to use of old parts
Using old parts (old hydraulic hoses, screws or retainers)
can lead to accidents, which may in turn result in severe
injuries.
u Only use new parts.
u Only use original parts.
Note: There are four different locking systems for the
round attack picks. Depending on the design of the drum
cutter, the round attack picks can be retained in the pick
box with a range of retainers. This also determines the
procedure and the tools required to change the part. The
four different methods of changing the round attack picks
are described in the text that follows.