KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
53
Code
Fault description, possible
cause
Fault check method
24
Control panel failed. Failure
of potentiometer 6 (fig. 2) of
the uppermost linkage posi-
tion
Check connection reliability of control panel and electronic
unit connectors; check EHR harness for mechanical dam-
age.
28
Control panel failed. Failure
of linkage control handle 2
(fig. 2)
Check connection reliability of control panel and electronic
unit connectors; check EHR harness for mechanical dam-
age.
Simple faults
33
Low voltage
EHR system supply is below 8V.
Battery is low. Check the generator output voltage
34
Control panel failed. Failure
of potentiometer 7 (fig. 2) of
linkage speed control
Check connection reliability of control panel and electronic
unit connectors; check EHR harness for mechanical dam-
age.
36
Control panel failed. Failure
of potentiometer 9 (fig. 2)
that combines the plowing
modes: power
– position
Check connection reliability of control panel and electronic
unit connectors; check EHR harness for mechanical dam-
age.
Code
is not
gener-
ated
Inadvertent linkage lift after
engine starting
Gate valve LIFTING of EHR section is stuck in open posi-
tion.
Disconnect harness blocks from LIFTING and LOWER-
ING solenoids. If the fault is still present, correct the error
in the hydraulic system