KIROVETS K-744R1, K-744R2, K-744R3, K-744R4 tractors
175
Fault
Troubleshooting
- loosened fasteners of signal connection, cover or
coil;
Tighten the fasteners.
- cracks in the membrane.
Replace the signal.
The sound signal does not activate:
- the fuse is blown;
- faulty contact in the signal button.
Eliminate a short-circuit in the wiring, after which replace
the fuse.
Restore the contact.
Instrumentation does not provide readings or provides
incorrect readings:
- the fuse is blown;
- faulty contact in the indicator-sensor circuit;
- faulty indicator or sensor.
Eliminate a short-circuit in the wiring, after which replace
the fuse.
Check the reliability of wire connection to indicators and
sensors.
Replace the indicator or sensor.
The indicator lamp “Battery charging” is on (at
the instrument panel) with the engine in opera-
tion:
- tension of the generator drive belt is not sufficient; Tighten the belt.
- break in the power circuit of excitation winding, oxi-
dation of adapter terminals, loosening of terminal
clamps;
Restore the circuit integrity, clean and tighten the adapter
terminals.
- hanging up, wear of brushes, fracture of springs in
brush holders;
Check the condition of brush assembly; if necessary, re-
place the brushes, springs.
- earth fault of the wires feeding the generator excita-
tion winding;
Eliminate a short circuit in the power circuit of the genera-
tor excitation winding
- voltage controller has decreased the level of voltage
being controlled in the electrical network of the tractor.
Replace the generator.
Fig. 49 Receiver of air conditioning system
1
– receiver; 2 – sight hole
to evaporation-heating unit
from condenser
