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"10) Fault :- Lifting and lowering unit not lifting up by manual operation.
Probable causes and Remidial action.
A) No system pressure. Ensure system pressure.
B) No 24V supply on program panel.
Ensure 24V supply on program panel.
C) Up position switch defective.
By operation of Up position switch, indication Q1C for LHS & QID for RHS should come.
* Q16 & Q17 indicating down position should not come.
Check relay Re3 for up position and Re4 for down position of PCB EK347.
Blocking valve indication.
* QL34 when LHS unit is not going up.
* QL35 when RHS unit is not going up.
D) No supply to bye-pass valve
Check signal QL2E for LHS and QL2F for RHS.
E) Servo valve defective
If servo current is showing on galvanometer 18G2 for respective sides and bypass indication is coming and still the unit is not lifted up, servo valve is defective. Replace servo valve.
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"
10) Fault :- Lifting and lowering unit not lifting up by manual operation.
Probable causes and Remidial action.
A) No system pressure.
B) No 24V supply on program panel.
Ensure 24V supply on program panel.
C) Up position switch defective.
By operation of Up position switch, indication Q1C for LHS & QID for RHS should come.
* Q16 & Q17 indicating down position should not come.
Check relay Re3 for up position and Re4 for down position of PCB EK347.
Blocking valve indication.
* QL34 when LHS unit is not going up.
* QL35 when RHS unit is not going up.
D) No supply to bye-pass valve
Check signal QL2E for LHS and QL2F for RHS.
E) Servo valve defective
If servo current is showing on galvanometer 18G2 for respective sides and bypass indication is coming and still the unit is not lifted up, servo valve is defective. Replace servo valve.
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