Trebor 610RC Magnum - Manual (Page 17)

M610RC Page 17
8100 South 1300 West, West Jordan, Utah 84088 USA Tel: 801-563-0303 Fax: 801-255-2312 www.treborintl.com
7 TROUBLESHOOTING
Pump Will Not Start, Fails to Operate
Cause: Solution:
 Insufficient air pressure.  Must be 10-15 PSIG greater than fluid discharge line
pressure.
 Insufficient air volume.  See Performance Charts (Section 5.1) for requirements.
 Dirty or damaged shuttle valve.  Clean shuttle spool/detent and sleeve until free movement is
assured; or replace (see 6.8.a).
Use clean dry air or nitrogen.
 New diaphragm installed; not stretched
enough to allow contact with pilot valves.  Increase air pressure up to 60 psig until pump starts.
Decrease for proper flow if necessary.
 Both diaphragms expanded into contact with
pilot valves due to excess fluid supply line
pressure.  Adjust check muffler assembly (see 4.4).
 Fluid discharge line blocked. Downstream
valve closed, filter plugged or other
obstruction (dead head).  Remove obstruction. Refer to Section 4.4 for further
information on “Dead Head” condition.
 Shuttle valve spool may be centered.  Turn off air supply. Disconnect supply tube at pump fitting to
bleed internal pressure. Reconnect and turn on air.
Remove shuttle cap and push the spool to end of travel.
Replace cap, start pump.
Bubbles in Fluid Discharge
Cause: Solution:
 Leaking fluid inlet fitting.  Tighten, or remove and wrap with PTFE thread tape prior to
tightening.
Replace seals (adapter port option only).
 Leaking main seal.  Tighten tie bolt nuts to 42 in-lbs. Replace diaphragms if
damaged.
 Ruptured (perforated) diaphragm. This is
easily detected by large amounts of air in the
discharge fluid during pump operation.  Replace Diaphragms.
Fluid Leaks
Cause: Solution:
 Tie bolt torque not enough to effect seal.  Tighten all nuts to 42 in-lbs.
 Damaged main seal.  Replace. Check for irregularities in diaphragm groove on
pump body. Inspect for proper chemical compatibility.
 Check bore cap.  Tighten, or remove and replace seal.
 Ruptured diaphragm(s) can result in fluid
leaks through air exhaust port and shuttle
valve.  Replace diaphragms, and any parts that may have been
damaged by fluid exposure.