BELARUS-
1523/1523В
/1523.3
/1523В.3
Troubleshooting
235
Trouble, symptoms
Remedy
right-hand
ЭВИТ
-
С3
sensors of turn angle
of the steerable wheels.
ure “
Adjusting the ЭВИТ
-
С3 Sensors of the
Angle of Turn of the Steerable Wheels” in
Section “Construction and Operation of
Tractor Components”.
Breakage in the “minus” circuit of the power
supply or in the “signal” circuit of the left-
(34) or right-hand (35), respectively, turn
angle sensors (see “Electric Connection
Diagram of the Control Systems of the LD,
FDA and GB Reduction Gear” in Section
“Appendices”).
Check the electric circuits against the elec-
tric connection diagram.
The right- or left-hand turn angle sensor,
respectively, is faulty.
Replace the faulty sensor.
When braking the tractor (stepping on the both pedals at the same time) the FDA
drive cannot be engaged or the rear axle DL cannot be disengaged (on stepping on
any brake pedal):
One or both BK 12-21 sensors of applica-
tion of the brakes (operation of the brake
pedals) (see “Electric Connection Diagram
of the Tractor” in Section “Appendices”).
Simulate in turn the operation of the sensors
by closing the contacts in the terminal
blocks of the bundle to the sensors.
The bundle is faulty
Check the bundle for intactness against the
electric connection diagram (see “Electric
Connection Diagram of the Control Systems
of the LD, FDA and GB Reduction Gear” in
Section “Appendices”).
The relays (10, 11, 12 and 13) (see «Elec-
tric Connection Diagram of the Control Sys-
tems of the LD, FDA and GB Reduction
Gear» in Section «Appendices») in the cir-
cuit of engagement of the FDA drive and
engagement of the rear axle DL during the
brake are faulty.
Replace the relays.
The lamp of engagement of the lower reduction gear stage fails to light up on start-
ing the engine, or the lamp of engagement of the higher reduction gear stage fails
to light up after switching the reduction gear to a higher reduction gear stage:
The oil pressure in the hydraulic control sys-
tem is below 0.8 MPa.
Check the oil pressure against the trans-
mission oil pressure gauge in the
dashboard. Eliminate the fault in the hydrau-
lic system or adjust the relief valve.
The
ДСДМ
-
М pressure sensor of the higher
or lower stage of the GB reduction gear (37)
or (38), respectively, is faulty or the pilot
lamp of engagement of the GB reduction
gear (6) or (24) is blown out, or the LED of
the GB reduction gear (40) or (39) is blown
out (see “Electric Connection Diagram of
the Control Systems of the LD, FDA and GB
Reduction Gear” in Section “Appendices”).
Replace the faulty components (pressure
sensor or pilot lamp, or LED).
Open circuit from the sensor to the pilot
lamp or from the sensor to the LED.
Check the integrity of the “sensor – pilot
lamp” or “sensor – LED” circuit and elimi-
Summary of Contents for 1523
Page 1: ...BELARUS 1523 1523В 1523 3 1523В 3 1523 0000010 РЭ OPERATING MANUAL 2009 ...
Page 70: ......
Page 72: ......
Page 76: ......
Page 77: ...BELARUS 1523 1523В 1523 3 1523В 3 Construction and Operation 73 ...
Page 78: ......
Page 124: ......
Page 131: ......
Page 137: ......
Page 151: ......
Page 160: ......
Page 162: ...BELARUS 1523 1523В 1523 3 1523В 3 Construction and Operation 152 ...
Page 163: ......
