C-Frame Press Troubleshooting: 17 Solutions You Need | MachineMFG

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C-Frame Press Troubleshooting: 17 Solutions You Need

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Looking to troubleshoot your C-frame press?

Look no further than this comprehensive guide to identifying and solving common malfunctions. From main motor issues to operation problems and valve faults, this article covers it all. Whether you’re a seasoned metalworker or just starting out, our expert advice will help you get your press back up and running in no time.

Keep reading to learn more!

C-Frame Press Troubleshooting

Below is a detailed list of C-frame press malfunctions and their corresponding solutions. This list not only identifies the location of the failure, but also provides explanations for why it occurred and how to resolve it.

CategoryFaultsReasonsSolutions
Main motorAc Contactor not work, main motor not work1. clutch bondCheck the switch to,adjusting microinching position
Check the power supply
2. power failure
3. control circuit failure
4. thermo relay work
5. winding turnoff
Ac Contactor work, main motor not work1. main motor line brokenRepair
2. main motor faultRepair
3. poor contactRepair
4. main motor bearing faultRepair
Main motor not stop1. stop button short outRepair
2. two contacts colliquefactionRepair
3. contactor movable part faultRepair
OperationSliding block not move1. auto stop button not restorationRestoration
2. sliding block not back to the top dead centerSliding block back to top dead center
3. pressure relay not workAdjusting air pressure
4. overload protector  microswitch not adjustedReadjusting
5. power source or power faultRepair
6. auto stop button bad contactRepair
7. operating button contactRepair
8. clutch cylinder stroke increaseChange adjusting shim
9. clutch get stuck or air leakageRepair
10. clutch magnetic valve air leakage or coil shortRepair
Sliding block stops at the bottom dead center1. auto stop button processing circuit due to vibrationIncrease spring force
2. ac contactor off due to vibrationChange antivibration switch
3. overload protection  microswitch off  due to vibration 
4. cam controller switch not work 
Sliding block cannot stop at the top dead center1. clutch stroke increaseChange adjustable pad
2. cam adjustment faultReadjustment
Stop position not  regularly1. relay contact fusionChange contactor
2. relay residual magnetismChange relay
3. button spring damageChange button
4. damage faultRepair
5. clutch emit heatReduce operation time
6. spring force too lowIncrease spring force or change
Emergency stop button cannot restorationButton not goodChange
Coil melting loss. melting loss1. excess temperatureAdjusting
2. supply voltage exceed specified value
3. generate residual magnetism
4. lead too tight
Movable iron core cannot go back when power off1. movable iron core Slipper part get stuckWipe off impurity
2. reset spring corrosionChange spring
Actuation time error1. iron core  and valve seat corrosionIron core  rust removal or change, increase
2. Slipper part has dust and impurityVoltage
Reversing valveLeakage1. P-A cavitary seal ring brokenReplace sealing element part
2.  priority valve  and  main valve  coupling screw loose
After reverse, O cavitary  Continue to vent1.  P-A  cavitary  seal ring brokenReplace sealing element part, change  seal ring
2.  piston seal broken
Not reversing1.  coil  bad contactCheck binding post
2.  coil  burning-outchange coil
3.  main valve  element get stuckRemoving impurities
4.  valve slipper part large resistanceImprove lubrication
5.  poor lubricationChange seal ring
6.  seal ring  deformationChange seal ring
Valve vibration1. control air supply low pressureIncrease  control pressure
2.  guide  solenoid valve low voltageIncrease supply voltage
Reversing valveReversing too  slowexhaust resistance increasing due to silencer installed at the ventChange silencer
Balance valve fault1. two guide  solenoid valve  electrical signal   out of syncCheck electrical signal
2. travel switch not workCheck valve element   dynamical friction switch, change them if necessary

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