Trouble in Hydraulic Relief Valve
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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 "Hydraulic Relief Valve"1) Fault :- Erratic pressure.
Probable causes and Remidial action.
1. Foreign material in the oil.
=> Drain the oil, clean the tank and refill with clean oil.
2. Worn poppet valve or seat .
(oil from pilot stage will go to tank due to worn poppet valve or seat and pressure will drop).
=> Replace poppet valve or seat as required.
3. Piston sticking in main body.
=> Clean piston after dismantling. Check free movement after re- assembling .
Now we study about "Hydraulic Relief Valve"
1) Fault :- Erratic pressure.
Probable causes and Remidial action.
1. Foreign material in the oil. => Drain the oil, clean the tank and refill with clean oil.
2. Worn poppet valve or seat .
(oil from pilot stage will go to tank due to worn poppet valve or seat and pressure will drop).
=> Replace poppet valve or seat as required.
3. Piston sticking in main body.
=> Clean piston after dismantling. Check free movement after re- assembling .
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