Operating
Instructions
Frequently Asked Questions (FAQs)
2K2100 with STW
32
7
Frequently Asked Questions (FAQs)
Fault
Cause of fault
Remedy
Gearbox is loud, knocking
noises
•
Loose contact on motor speed
sensor, which causes permanent
motor governing
•
Speed sensor dirty, no clear
signals sent
Check speed sensor and electrical
lines to motor, clean/exchange
speed sensor as necessary.
Check motor management system,
adjust speed control accordingly
("softer" setting)
Gearbox is loud, running noise Long periods at high cutting speed
in ratio 1:1 followed by change to
machining in ratio 4:1
No gearbox damage
Gearbox running noise normalizes
after several gear changes
Gearbox is loud, running noise
in ratio
Motor shaft is too long,
axial bearing damaged
Check bearing,
install new bearing if necessary
Gearbox leaking at gearbox
input/output
Defective seals
Renew seals, send gearbox to ZF
for inspection if necessary
Gearbox leaking at breather
•
Oil has aged
•
Too much oil added during oil
change
•
Change the oil
•
Check the oil level and correct if
necessary
Machine control receives no
shift position signals from the
gearbox shift unit
•
Loose contact in the plug
connection on the gearbox shift
unit
•
Fault in the shift unit
•
Check the plug connection and
clean if necessary, secure
connectors using clips
•
Send gearbox to ZF for
inspection
