Possible Failures In The Electrical Equipment And Guidelines For Troubleshooting; General Information; Search And Elimination Of Failures In Electrics Power-Supply - Belarus 1822.3 Operator's Manual

Lowering valve
stated below::
1. Unscrew four screws.9 (figure 7.14.1) by hexagon wrench 3 mm, removing the
coil 12 before by unscrewing the cap 11, withdraw the upper solenoid 8 from the section
housing 10.
2. Measure the dimension " " with accuracy of not less than 0.1 mm.
3. Unscrew the counter nut 1 of the warm 2 locking, screw the warm out (hexagon
wrenches with 6mm head).
4. Screw the worm gear wheel 3 in up to the stop, ensuring the reduction of spring
pressing up force 5 by a hexagon wrench with 16mm head.
5. Remove the lock ring 16 and the washer 4 from the valve spindle 7.
6. Withdraw the spring from the valve 5.
7. Screw out the worm gear wheel 3 from the section housing by hexagon wrench
with 17 mm head.
8. Screw out the lock nut 6 of the lowering valve assembled from the section hous-
ing 10 hexagon wrench with 17 mm head.
9. Withdraw the lowering valve assembled 7 from the section housing 10.
10. Disassemble the lowering valve assembled 7.
11. Rinse all the components withdrawn from the section housing 10, and rinse the
section housing with the diesel fuel or petroleum also.
12. Assemble all components in reverse sequence, ensuring the dimension "A"
value. Measured before disassembly procedure.
ATTENTION: SECTION
DURE SHALL BE CARRIED OUT ONLY BY DEALERS!
7.15 Possible failures in the electrical equipment and guidelines for trouble-
shooting

7.15.1 General information

Marking of all electrical equipment components GB1, FU1, 1, QS1, SA1 and etc.),
corresponds to electric circuit diagram for "BELARUS-
is enclosed to the present operation manual (Annex B).
Blowing of a fuse elements FU in switching unit (SU) is indicated by red led lamps
upon switching of any load. When faulty fuse element is replaced install properly operating
fuse element of the same specific power, otherwise switching unit and tractor electrics can
be damaged. Purpose of any fuse element and switching unit relay is specified in labels
put on plastic cover of the SU and in clause 2.17.2 "Fuses of the electrical equipment".

7.15.2 Search and elimination of failures in electrics power-supply

Absence of power supply to the whole system power
7.15.2.1
) Test fuse element 60 on a fuse block F1 located in a battery compartment for
operability. Replace in case of failure.
b) Test power circuit breaker QS1 for operability by testing its switching ability in
manual mode. If power circuit breaker does not operate in manual mode – replacement is
needed. If power circuit breaker operates in manual mode, check operability of remote bat-
tery disconnect switch SA11 in instrument board and circuit operability from key SA11 to
terminal "3" of circuit breaker QS1, including fuse element FU29 (15 ) operability
AB (GB1) charge is nil with the motor running, generator does not operate
7.15.2.2
) Test generator G1 for operability for what connect testing apparatus to terminal
"+ ' and generator housing. Test voltage – it should be about 12 – 12.7 V before engine start-
up, and 13.5 – 15 V after engine start-up. If these conditions (at standard AB (GB1) charge) are
not observed, contact your dealer for generator repair.
R-23LS disassembly is carried out according to the procedure
R-23LS LOWERING VALVE DISASSEMBLY PROCE-
329
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2022.3-0000010 OM
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