Trebor 110E - Manual (Page 21)

MODEL 110E PUMP OPERATION / MAINTENANCE MANUAL PAGE 21
5 TROUBLESHOOTING
Pump Will Not Start, Fails to Operate
Cause: Solution:
 Insufficient air pressure.  Must be 10-15 psi greater than fluid discharge line
pressure.
 Insufficient air volume.  See performance Chart (Section 3.3) for requirements.
 Remote air logic system.  Replace or repair air logic system.
Bubbles in Fluid Discharge
Cause: Solution:
 Leaking fluid inlet fitting.  Tighten, or remove and wrap with TFE thread tape prior to
tightening.
 Leaking main seal.  Tighten tie bolt nuts to 32 in-lbs. Replace diaphragms if
damaged.
 Ruptured (perforated) diaphragm.  Replace Diaphragms.
Fluid Leaks
Cause: Solution:
 Tie bolt torque not enough to effect
seal.  Tighten all nuts to 32 in-lbs.
 Damaged main seal.  Replace.
Check for irregularities in diaphragm groove on pump
body.
 Check bore cap.  Tighten, or remove and replace seal.
 Ruptured diaphragm(s) can result in
fluid leaks through air exhaust port and
remote air logic system.  Replace diaphragms, and any parts that may have been
damaged by fluid exposure.
Erratic Cycling
Cause: Solution:
 Check ball(s) not seating.  Replace check balls and O-rings.
 Remote air logic system malfunctions.  Replace or repair remote control air logic system.