HOSE BROKEN CAUSE 2 [Fault 2]

Trouble in Hydraulic Hose Assembly

You are on n4net and this is indian railway track machine trouble shooting technology 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 "Hydraulic Hose Assembly"

What is the fault acctually?

The hose has burst, but there is no indication of multiple broken wires in the entire length of the hose.  The hose may have burst in more than one place. 

What is cause for the fault developing?

This would indicate that the pressure has exceeded the minimum burst strength of the hose.   

How to fix this problem?

Either a stronger hose is needed or the hydraulic circuit has a mal-function which is causing unusually high pressure conditions. 

IF HOSE BRUST WHAT SHOUILD WE DO? [Fault 1]

Trouble in Hydraulic Hose Assembly

You are on n4net and this is indian railway track machine trouble shooting technology 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 "Hydraulic Hose Assembly"

What  the fault acctually is? 

The hose has burst on examination after stripping back the cover of the wire reinforcement reveals random broken wires in the entire length of the hose. 

Why it happen?

This indicates high frequency pressure impulse condition.  SAE impulse test require- ments are as under: 
(a) For a double wire braid reinforcement are 2,00,000 cycles of 133% of recommended working pressure. 
(b)For a four spiral wrapped reinforcement (100R-9) are 3,00,000 cycles at 133% maximum operating pressure at +200 0 F (93 0 C). 

 What should we do?

If the extrapolated impulses in a system amount to over a million in a relatively short time a spiral reinforced hose would be the better choice.