Belarus 1822.3, Руководство оператора

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2022.3-0000010 OM
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- set transmission range selector lever in neutral position; breaker contacts should
be closed, resistance tends to zero;
- set transmission range selector lever in operating position – breaker contacts
should be unclosed, resistance tends to infinity;
- in case the specified requirements are not met dismount the breaker S 3;
- carry out testing of dismounted breaker,
- if its nonoperability is confirmed – replace interlock switch;
- if its operability is confirmed – adjust interlock switch using adjusting washer.
3
Check operability of starter interlock system circuits with GB in “on” position as fol-
lows:
- Check operability of circuit from a starter relay 9 coil ( 9.2) to interlock switch 3
for which purpose connect an indicating lamp between terminal "+" of AB and switching
unit output F to terminal "86" of relay coil ( 9.2), with relay K9 withdrawn, thus:
- The led lamp should be on when transmission range selector lever is in neutral
position and if circuit under test operates properly;
- The led lamp should be off when shifting of transmission range selector lever into
“on” position, or, if circuit under test has failures.
4
Check operability of circuits and engine start-up ware, for which purpose perform
the following:
- remove instrument board side bar;
- check operability of starter switch SA9, by connecting an indicating lamp to
“ground” with one wire and with another wire to switch terminals one at a time:
) terminals “30”, “19” - green wires (battery disconnect switch should be on);
b) terminal “58” - yellow wires (key should be turned into first position);
c) terminal "50" - red wires (key should be turned into second fixed position);
Indicating lamp should be on in all cases.
- check circuits operability and current supply to terminal 9 of starter relay located
in SU:
- connect indicating lamp to “ground” with one wire and with another wire to relay
terminals one at a time:
) power terminal “30”
b) coil terminal “85”
Key should be turned into second fixed position.
Indicating lamp (during starter relay test use 24V indicating lamp) should be on in
both cases.
- Check operability of circuit from a starter relay 6 to solenoid starter switch;
WARNING: SET THE TRANSMISSION RANGE SELECTOR LEVER INTO NEU-
TRAL POSITION. OPERATOR MUST BE IN CAB!
- place a bridge between power terminals "30" and "88" starter relay 6 using auxil-
iary wire as a connector. Start-up of starter and diesel engine start-up should be initiated at
the moment (by-passing control and start-up lock circuits).
- check operability on starter relay 6;
- turn starter switch key into position “II”. Starter relay actuation and engine start-up
should be initiated at the moment.
During check of operability of circuit from interlock switch to starter relay 9 it is
necessary to assure oneself of starter start-up interlock relay 19 – properly operating re-
lay has constantly closed circuit (power contact ( 19.1) 30 and 88).
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