User Manual

FENDT 900 Vario COM III Faults
B
OVERALL SYSTEM/TRACTOR
Fault Code Table FENDT 900 Vario – COM III
Service Training
919 .. 1001- 934 .. 1001- 922 .. 1001- 925 .. 1001- 928 .. 1001- 931 .. 1001-
0000 B T000002
Version 3
21/09/2007
23
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Selected speed is active, stub
speed lower than clutch
speed, power supply fault to
B020 Hall sensor, speed se-
lection solenoid valve (Y026,
Y027) stuck in "OFF" position
Electric speed selec-
tion remains possible,
press "Engage PTO"
button for more than
5 seconds (emergen-
cy mode). In case of a
faulty solenoid valve,
corresponding speed
cannot be engaged.
Circuit diagram
Sheet 10
REAR PTO ENHANCED
CONTROL
06.1.55 A039 - MFA, multifunction armrest
Speed preselection button neutral
has been pressed for more
than 30 seconds, mechanical
or electrical fault in button
No preselection pos-
sible
06.1.56 A039 - MFA, multifunction armrest
Speed preselection button 540
has been pressed for more
than 30 seconds, mechanical
or electrical fault in button
No preselection pos-
sible
06.1.57 A039 - MFA, multifunction armrest
Speed preselection button 750
has been pressed for more
than 30 seconds, mechanical
or electrical fault in button
No preselection pos-
sible
06.1.58 A039 - MFA, multifunction armrest
Speed preselection button 1000
has been pressed for more
than 30 seconds, mechanical
or electrical fault in button
No preselection pos-
sible
06.1.60 B020 - Sensor, rear PTO speed (stub
shaft)
The actual speed of the PTO
stub (corrected by the trans-
mission rate) differs from set-
point speed of PTO clutch by
more than 12%. Solenoid
valve (Y026, Y027) incorrectly
wired or seized. Mechanical
fault in speed selector. Signal
fault in Hall sensor (B020,
B021)
Electric speed selec-
tion remains possible,
press "Engage PTO"
button for more than
5 seconds (emergen-
cy mode). In case of a
faulty solenoid valve,
corresponding speed
cannot be engaged.
Circuit diagram
Sheet 10
REAR PTO ENHANCED
CONTROL
06.1.81 A039 - MFA, multifunction armrest
Button, REAR PTO
Counter error
Fault
code
DIN brief description Cause Consequences Reference FENDIAS/Note