Trebor 610RC Magnum - Manual (Page 18)

Page 18 M610RC
8100 South 1300 West, West Jordan, Utah 84088 USA Tel: 801-563-0303 Fax: 801-255-2312 www.treborintl.com
Erratic Cycling
Cause: Solution:
 Leaking shuttle cap.  Tighten; or remove and wrap with PTFE thread tape prior to
tightening.
 Fluid supply line restricted (cavitation).  Reduce fluid restriction.
Reduce distance, height of suction head.
Increase diameter of suction supply line (reduces restriction).
 Fluid supply line pressure.  Adjust check muffler assembly.
 Pilot valve not seating.  Check pilot valve function and seal.
Additional PTFE thread tape on pilot valve threads.
 Pilot valve transfer O-rings leaking.  Check diaphragm hole alignment. Replace O-ring seals.
 Check ball(s) not seating.  Replace check balls and O-ring seats.