Trouble with Tamping units.
You are on n4net and this is indian railway track machine trouble shooting with you.
This is a series of trouble shooting technique for the track machine working in Indian Railway. When you study this you able to rectify a fault of machine. If this is helpful for you than share with others. It may helps them. Thanks for sharing.
Now we study about "Tamping Unit"3) Fault :- Tamping unit is not going up during tamping operation (Tamping unit remains in down position).
Probable causes and Remidial action.
A) No system pressure.
Check system pressure. If system pressure is not there, check 38X22 system pump, unloader valve, non-return valve and relief valve. Replace defective ones.
B) Piston rod or piston broken (Tamping unit UP & DN).
Replace piston rod assembly or complete cylinder.
C) Defective proportional valve.
Operate proportional valve manually. If the unit is not lifting up, proportional valve is defective and replace it. If proportional valve is OK, check supply on proportional valve.
D) No supply on proportional valve.
Check deflection on galvanometer 18G3 at position 1 for LH and position 2 for RH. If no deflection :-
i) Check and ensure supply voltage 24V & 12V on program panel.
ii) If supply voltage is OK, check output voltage of PCB EK813SV (10U5) for +15V and +10V. If not proper, replace PCB EK813.
iii) Check output signal Q10 for LH and Q11 for RH. These should not come.
iv) If Q10 and Q11 appears, check-
a) Signal Q0D-X0D. This should come.
b) If Q0D - X0D is not coming, check input signal X27 or X28 (X27 for continuous working mode and X28 for step by step working mode).
c) Check Q01 - X01. This should come, indicating that squeezing has been completed. If Q01 - X01 is not coming, check-
*Input signal X17 for LH & X18 for RH. If no input signal, check depth transducer for slipped forkk, broken chord or defective potentiometer.
* Check signal Q69 - X69, If no signal, setting of squeezing time is defective or timer chord defective. Adjust timer chord or replace chord.
d) If all the above points are OK but still Q10 or Q11 is not coming, PCB EK16 is defective. Preplace PCB EK16.
You are on n4net and this is indian railway track machine trouble shooting with you.
This is a series of trouble shooting technique for the track machine working in Indian Railway. When you study this you able to rectify a fault of machine. If this is helpful for you than share with others. It may helps them. Thanks for sharing.
Now we study about "Tamping Unit"
3) Fault :- Tamping unit is not going up during tamping operation (Tamping unit remains in down position).
A) No system pressure.
Check system pressure. If system pressure is not there, check 38X22 system pump, unloader valve, non-return valve and relief valve. Replace defective ones.
B) Piston rod or piston broken (Tamping unit UP & DN).
Replace piston rod assembly or complete cylinder.
C) Defective proportional valve.
Operate proportional valve manually. If the unit is not lifting up, proportional valve is defective and replace it. If proportional valve is OK, check supply on proportional valve.
D) No supply on proportional valve.
Check deflection on galvanometer 18G3 at position 1 for LH and position 2 for RH. If no deflection :-
i) Check and ensure supply voltage 24V & 12V on program panel.
ii) If supply voltage is OK, check output voltage of PCB EK813SV (10U5) for +15V and +10V. If not proper, replace PCB EK813.
iii) Check output signal Q10 for LH and Q11 for RH. These should not come.
iv) If Q10 and Q11 appears, check-
a) Signal Q0D-X0D. This should come.
b) If Q0D - X0D is not coming, check input signal X27 or X28 (X27 for continuous working mode and X28 for step by step working mode).
c) Check Q01 - X01. This should come, indicating that squeezing has been completed. If Q01 - X01 is not coming, check-
*Input signal X17 for LH & X18 for RH. If no input signal, check depth transducer for slipped forkk, broken chord or defective potentiometer.
* Check signal Q69 - X69, If no signal, setting of squeezing time is defective or timer chord defective. Adjust timer chord or replace chord.
d) If all the above points are OK but still Q10 or Q11 is not coming, PCB EK16 is defective. Preplace PCB EK16.
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