PART A: Basic machine
Shredder
L 60; L60+
©
VIRTUS EQUIPMENT 2018 All rights reserved
Page 64
9.5
Extreme cutter wear
No.
Possible causes
Remedy required
9.5.1
Bearing damage.
Check bearings, replace bearings if necessary.
9.5.2
Knife finish.
Check knife and sharpen or replace if necessary.
9.5.3
Wrong cutting gap.
Check cutting gap and set according to the instruc-
tions in this operation manual.
9.5.4
Foreign matter.
Fit feed device with a metal detector.
9.6
Bearings too hot
No.
Possible causes
Remedy required
9.6.1
Too much grease in bearing.
Reduce amount of grease.
9.6.2
Rubbing on housing sealing ring.
Check sealing ring, oil or replace.
9.6.3
Bearing damage.
Check bearings, replace if necessary.
9.6.4
No grease in bearing.
Lubricate bearing.
9.7
Cutting gap alters during operation
No.
Possible causes
Remedy required
9.8.1
Knife mounting screws not tight.
Retighten using torque wrench in accordance with ta-
ble in operation manual.
9.8.2
Screw fatigue.
Fit new screws.
9.8.3
Washers deformed.
Insert new washers.
9.8.4
Knife holder surface deformed
Insert new knife holders
9.8.5
Supporting surfaces not clean.
Clean and de-rust supporting surfaces.
9.8.6
Threads in housing worn.
Fit new bushes in housing.
9.8
Shredder does not start
No.
Possible causes
Remedy required
9.10.1
Main and control fuses.
Replace fuse.
9.10.2
Feed device not connected.
Switch on in sequence.
9.10.3
Material jam
Empty shredder before switching on.
9.10.4
Motor protection switches off.
Check motor relay for correct setting and increase if
necessary.
9.9
Shredder blocks when under load
No.
Possible causes
Remedy required
9.11.1
Feed starts too early.
Start feed only after switch over from star to delta.
9.11.2
Fuse defective.
Replace fuse.
Fit larger fuse.
Only after consulting the service
department of VIRTUS GmbH.
9.11.3
Motor fuse switches off - red indica-
tor.
Reduce feed quantity of the grinding material,
correct setting,
replace fuse.
9.10
Frequent switching off of grinding material in feed device
No.
Possible causes
Remedy required
9.12.1
Current relay switches off.
Correct setting.
