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Wanner Engineering, Inc.
United States Instant Information: www.vectorpump.com
(612) 332-5681 Fax (612) 332-6937 VEC-991-4000B
Vector 4000 Troubleshooting
PROBLEM
POSSIBLE REASON
CORRECTION
Hose life is too short.
Incompatibility of the hose with the
pumped material.
Make sure the compatibility of the hose
with your material and contact your Wan-
ner distributor.
Discharge pressure too high.
Check that the discharge pressure of the
pump does not exceed 15 bars (or 8 bars
for 4003, 4004). Check that the outlet
piping is not blocked up and that all
valves are opened.
Make sure that the security valve works
correctly.
Make sure that the piping friction losses
do not exceed the value requested for an
appropriate functioning of the pump.
Pump speed too high.
Reduce pump speed.
Wrong shimming.
Check shimming.
Pumped material temperature too high.
Contact your Wanner distributor.
Lubricant leakage around the cover
Loose cover bolts. Cover seal wear.
Tighten cover bolts. Replace cover seal.
Lubricant leakage in the leakage channel
(underneath the gearbox flange)
Shaft seal or seal ring wear.
Replace.
Lubricant leakage at the sleeves
Loose clamps or damaged sleeve(s).
Tighten clamps. Replace sleeves.
Pipe pulsations.
Piping not connected correctly.
Fix piping connections.
Process creating abnormal pulsations
due to the pumped material, the speed
of pump, discharge pressure, or the pipe
sizing.
Contact your Wanner distributor.
8 TROUBLESHOOTING
