Pressure switch fault and ruled out

Fault phenomena 

Causes       

Elimination method      

 Output not requirements

 Or no output      

1．The micro switch damage

2．Electrical line fault     

3．The valve core card death or damping more holes

4．Steel ball roundness sent

5．The valve core mobile not agile

6．Contact screw, leverage improper adjustment

1.  Replace micro switch

2.  Check with universal meter reason, remove the faults

3.  Clean, repair match means, to meet requirements

4.  Replace the pipe, make the oil flow clear

5.  Replace the right spring or adjust the pressure value according to the requirements

6.  Tighten the joint, eliminate oil leakage

7.  Careful adjustment, to make contact with good contacts

8.  Reassembled, make action is

   sensitive

 Poor sensitivity   

1.  The levershaft pins place or steel ball piston place too much friction

2.  Assembly bad, not flexible action

3,  micro switch contact travel too long

4.  Steel ball roundness sent 5. Valve core mobile not flexible

6.  Contact screw, leverage improper adjustment

1.  To assembly, make action is sensitive

2.  Reassembled, make action is sensitive

3.  Rationally adjust the position

4.  Replace steel ball

5.  The repair or cleaning

6.  Rationally adjust the position

Signal too fast     

1.  The damping slants big hole

2.  Diaphragm damage

3.  On the system

4.  Electrical system design is flawed

1.  Reduce damping holes

2.  Change

3.  Increased damping, reduce the impact

4.  To design the electrical system or increase delay relay