Rebuild and test of control valve assemblies
General Electric EHC Actuator Rebuild

• Disassemble unit
  
  
• Initial cleaning (Degrease and remove loose paint)
  
  
• Remove, clean and check all manifold plugs and orifices
  
  
• Inspect all parts for wear, pitting, corrosion or grooving
  
  
• Disassemble spring canister and bearings (when required)
  
  
• Replace any worn parts
  
  
• Final cleaning: chemical and ultrasonic cleaning prior to reassembly
  
  
• Assemble cylinder, replacing all seals and piston rings using only
  Fyrquel-compatible seal (Viton and Teflon) and verify proper tie rod torque
  
  
• Test cylinder operation
  
  
• Test Abex servovalves individually (see Abex procedures)
  
  
• Test fast-acting solenoid valve for internal leakage and proper operation
  
  
• Test disc dump valve for internal leakage and proper operation
  
  
• Test GE shut-off valve for leakage and operation
  
  
• Re-assemble unit
  
  
• Test unit using Fyrquel fluid at a minimum of 2000 psi, checking for
  external leakage and piston ring leakage
  
  
• Drain fluid as possible and cap fittings for shipment
  
  
• Provide test reports for each component

Please contact your account representative if you have additional questions regarding the General Electric EHC Actuator Rebuild, or if you are experiencing problems with other areas of your EHC system.