Trebor 960E Mega - Manual (Page 22)

5 TROUBLESHOOTING
Pump Will Not Start, Fails to Operate
Cause: Solution:
Insufficient air volume. See Performance Charts (3.1) for requirements.
Reference regulator and control valve capacity
specifications >1.2 Cv.
Fluid discharge line blocked.
Downstream valve closed, filter plugged
or other obstruction. Remove obstruction.
Bubbles in Fluid Discharge
Cause: Solution:
Leaking fluid inlet fitting. Tighten, or remove and wrap with TFE thread tape prior to
tightening. Replace adapter O-ring.
Leaking main seal. Tighten tie bolt nuts to 60 in-lbs. Replace main seals if
damaged.
Pump inlet line pressure reached
saturation point (due to high suction
requirement). Increase diameter of suction supply line (reduces
restriction).
Reduce output flow.
Ruptured (perforated) diaphragm. Replace diaphragms.
Fluid Leaks
Cause: Solution:
Tie bolt torque not enough to effect
seal. Tighten all nuts to 60 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. Replace diaphragms, and any parts that may have been
damaged by fluid exposure.
Reduced Performance
Cause: Solution:
Supply line restricted (cavitation). Reduce fluid restriction.
Quick exhaust seal not seating. Check for particles between seal and port. Replace seal.
Check ball(s) not seating. Check O-rings for damage; replace if necessary.
Make sure check balls move freely in sleeves.
PAGE 22 MEGA 960E PUMP OPERATION / MAINTENANCE MANUAL