Replace cutter drums
The following maintenance activities are carried
out in the workshop.
◆
You must replace the cutter drums:
•
if the bearing surfaces of the pick boxes are
worn.
•
if the pick boxes are worn in the area of the
snap rings.
•
if the pick boxes are broken.
•
if the wear condition of the charging spiral is
irreparable.
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.
►
Only use new parts.
►
Only use original parts.
Note: You need an assistant who supports you
during assembly and disassembly work when
changing the cutter drums.
WARNING Risk of injury due to negligence
or incorrect lifting procedure
Negligent or incorrect actions during the lifting of
the cutter drums can cause severe injuries.
►
When lifting or lowering the cutter drums,
always be aware of the weight.
►
Always execute all lifting procedures with heavy
parts using suitable lifting gear.
►
If lifting procedures require the application of
physical force, personnel should always lift in
pairs.
►
Wear protective gloves and safety footwear.
Disassemble cutter drums
1. Disassemble transverse drum cutter from
carrier (see chapter Removing the hydraulic
attachment from the carrier) and place on a
level working area with sufficient bearing
strength.
2. Secure the transverse drum cutter against
falling using suitable lifting equipment and
suspend on a crane. When doing so always
observe the weight (see chapter Technical
Specifications).
3. Keep the lifting equipment tight.
4. Loosen the threaded connections of the cutter
drum (A).
5. Screw in the dismounting bolts (B).
Screwing in the dismounting bolts (B) results in
the cutter drum being pushed away from the
drive shaft.
6. The cutter drum, once loosened from the drive
shaft, must be secured against rocking
movements by an assistant.
7. Carefully lift the cutter drum away from the
drive shaft and set down.
8. Remove the clamping sleeves (C) in the drive
shaft using a special extractor (D).
To Next Page
Loading...