Trebor PC7 - Manual (Page 15)

PC7 CONTROLLER OPERATION / MAINTENANCE MANUAL PAGE 15
5 TROUBLESHOOTING
Controller Will Not Operate or Cycles Erratically
Cause: Solution:
• PC7 cap seal failure • Remove caps from PC7 and replace PTFE cap seal.
• Debris in shuttle valve • Isopropyl alcohol clean the shuttle sleeve and spool assy.
• Insuffisant air pressure • Increase regulated supply pressure or check control
valves for proper operation.
Rotate PC7 speed control screw CW until it stops. Then
readjust for correct speed.
• Adjustment Screw Seal failure • Replace adjustment screw assy.
• Spring bar failure • Spring bar needs replacement if not flat.