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"11) Fault :- Automatic lifting system not functioning.
Probable causes and Remidial action.
A) No system pressure. Ensure system pressure.
B) No servo current on Galvanometer 18G2 (position 1 for LH & 2 for RH).
i) Servo plug loose, Correct it.
ii) Check power supply 24V & 12V on program panel. If OK, check output voltage + 15V & +10V of PCB EK813 SV (6U4). If no output, replace PCB EK 813 SV(6U4).
iii) Check signal Q06 – X06 for LHS and Q07 – X07 for RHS. If no signal, then follow the steps as below-
* Front bogie is lowered and limit switch is operated, check limit switch. Replace if defective.
* Rear bogie is lowered and limit switch is operated, check limit switch. Replace if defective.
* Sensor X24 for LHS and X25 for RHS of lifting unit is defective or not properly positioned over rail. If defective, replace sensor or bye-pass, using switch on operating panel.
* Automatic levelling switch X2E in “ON” position but signal X2E is not coming. It means switch X2E is defective. Replace it.
* If Over-lifting limitation signal X32 & X33 is coming. Reset ON/OFF switch on EK347.
C) Defective PCB EK- 347.
Signal Q06 – X06 & Q07-X07 is OK, still no lift -
PCB EK347 is defective and to be replaced.
D) Servo current available, bye-pass operated and tamping unit below middle position, still no lifting.
Servo valve is defective, replace it.
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"
11) Fault :- Automatic lifting system not functioning.
Probable causes and Remidial action.
A) No system pressure.
B) No servo current on Galvanometer 18G2 (position 1 for LH & 2 for RH).
i) Servo plug loose, Correct it.
ii) Check power supply 24V & 12V on program panel. If OK, check output voltage + 15V & +10V of PCB EK813 SV (6U4). If no output, replace PCB EK 813 SV(6U4).
iii) Check signal Q06 – X06 for LHS and Q07 – X07 for RHS. If no signal, then follow the steps as below-
* Front bogie is lowered and limit switch is operated, check limit switch. Replace if defective.
* Rear bogie is lowered and limit switch is operated, check limit switch. Replace if defective.
* Sensor X24 for LHS and X25 for RHS of lifting unit is defective or not properly positioned over rail. If defective, replace sensor or bye-pass, using switch on operating panel.
* Automatic levelling switch X2E in “ON” position but signal X2E is not coming. It means switch X2E is defective. Replace it.
* If Over-lifting limitation signal X32 & X33 is coming. Reset ON/OFF switch on EK347.
C) Defective PCB EK- 347.
Signal Q06 – X06 & Q07-X07 is OK, still no lift -
PCB EK347 is defective and to be replaced.
D) Servo current available, bye-pass operated and tamping unit below middle position, still no lifting.
Servo valve is defective, replace it.
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