ZF DUOPLAN 2K121, Руководство по эксплуатации

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Frequently Asked Questions (FAQ)
36 EN 4161.758.101m – 2018-09
8 Frequently Asked Questions (FAQ)
Error Cause of error 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 speed sensor if
necessary
Check engine 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 leaking at gearbox
input/output Defective seals Replace 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

Error in the shift unit

Check plug connection and clean
if necessary, secure connectors
using clips.

Send gearbox to ZF for
inspection.
Gear disengages  Limit position switch defective  Send gearbox to ZF
Friedrichshafen AG for inspection.