Section 4 Troubleshooting Guide - Milton Roy PRIMEROYAL Instruction Manual

LIQUID END TROUBLESHOOTING GUIDE
SYMPTOM
Pump will not operate.
Insufficient delivery.
SECTION 4
CAUSES
Low liquid level.
Blocked discharge line.
Frozen liquid.
Pump not primed.
Incorrect capacity adjustment.
Incorrect pump speed.
Starved suction.
Leaky suction piping.
High suction lift.
Liquid near boiling.
Leaky packing.
Leaky safety valve in discharge line.
High liquid viscosity.
Worn or dirty check valve seats.
REMEDIES
Add liquid.
Clear line.
Thaw liquid throughout pumping
system.
Allow suction line and pump head
to fill with liquid before pumping
against pressure.
Readjust capacity setting.
Match line voltage and frequency
to pump motor data plate.
Increase piping size or suction
head.
Repair piping.
Rearrange equipment to de-
crease lift.
Cool liquid or increase suction
head.
Adjust or replace packing.
Repair or replace safety valve.
Reduce viscosity (e.g., heat or
dilute liquid).
Clean or replace.
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