Vortexx SJ & XJ Series - Manual (Page 12)

Operating Instructions and Parts Manual
SJ & XJ Series Pumps
Plunger Pumps
First Choice When Quality Matters
NORTH
AMERICA
Oil Leak Between
Crankcase and
Pumping Section
Frequent or Premature
Failure of the Packing
Pump Runs but
Produces no Flow
Pump Fails to Prime
Pump Looses Prime,
Chattering Noise,
Pressure Fluctuates
Low Pressure at Nozzle
Pressure Gauge
Fluctuates
Low Pressure
Worn rod oil seals
1. Cracked, damaged or worn
plunger
2. Overpressure to inlet
manifold
3. Material in the fluid being
pumped
4. Excessive pressure and/or
temperature of fluid being
pumped
5. Running pump dry
Pump is not primed
Air is trapped inside pump
1. Air leak in suction hose or
inlet
2. Clogged suction strainer
1. Unloader valve is bypassing
2. Incorrect or worn nozzle
3. Worn packing or valves
1. Valves worn or blocked by
foreign bodies
2. Packing worn
1. Worn nozzle
2. Belt slippage
3. Air leak in inlet plumbing
4. Relief valve stuck, partially
plugged or improperly
adjusted valve seat worn
5. Worn packing. Abrasive
Replace crankcase piston rod
seals
1. Replace plungers
2. Reduce inlet pressure
3. Install proper filtration on
pump inlet plumbing
4. Check pressures and fluid
inlet temperature; be sure
they are within specified
range
5. Do not run pump without
water
Flood suction then restart
pump
Disconnect discharge hose
from pump. Flood suction
hose, restart pump and run
pump until all air has been
evacuated
1. Remove suction line and
inspect it for a loose liner
or debris lodged in hose.
Avoid all unnecessary
bends. Do not kink hose
2. Clean strainer
1. Make sure unloader is
adjusted properly and
bypass seat is not leaking
2. Make sure nozzle is
matched to the flow and
pressure of the pump. If
the nozzle is worn, replace
3. Replace packing or valves
1. Clean or replace valves
2. Replace packing
1. Replace with nozzle of
proper size
2. Tighten or replace with
correct belt
3. Disassemble, reseal and
reassemble
4. Clean and adjust relief
valve; check for worn or
dirty valve seats
5. Install proper filter.
Troubleshooting
Symptom Possible Cause(s) Corrective Action