Kerr Pump Corporation KT-3350XP, Parts And Service Manual

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TROUBLESHOOTING GUIDE
Problem Reason/Solution
Unusual pounding, knocking broken
valve spring
•
Insufficient fluid at high speed.
•
Suction line is improper size or is constricted. (Trash in line, valve partly opened, etc.)
•
Possibility of gas in the fluid causing the roughness.
Loss of pressure or volume
•
Foreign matter may be holding valves open.
•
Worn valves.
•
Broken springs.
Consistent, rhythmic knock
•
Improper bearing adjustment.
•
Worn bearings or connecting rods.
•
NOTE: Valve noise is common and normal in high ‐ speed pumps. It should not cause concern unless
it becomes erratic.
Packing failure (Excessive)
•
Improper installation.
•
Improper type of lubrication.
•
Incorrect type of packing for particular installation.
•
(Contact Kerr Pump Corporation if you are unsure.)
Abnormal wear of fluid end parts
•
Abrasive or corrosive fluid.
Abnormal wear of power end parts
•
Lack of oil, overload on pump, foreign matter in oil.
Heat in power end
•
A new pump will run hot for a short period (2 or 3 days). See above for persistent heating. Pump
will operate near 140 ˚ F. under average conditions.
•
Check for air in pump by bleeding at cover caps.
•
Too much spring tension Reciprocating pumps have very limited pick up.
INSTALLATION INSTRUCTIONS
WARNING
The importance of proper installation cannot be overstressed. As the reciprocating pump is almost unable to lift fluid, proper suction
flooding is a must. This is the First step toward satisfactory operation.
Read everything in this section before attempting to run or connect your pump.