Spencer Power Mizer Multistage Centrifugal Cast Blowers - Manual (Page 15)

15
IX. Troubleshooting Guide
(cont.)
PROBLEM Possible Cause Corrective Action
Indication: mechanical fault
• Material buildup on impellers.
• Shaft bent.
• Bearing failure.
• Unbalanced replacement motor
installed.
• Internal parts hitting.
• Impeller failure.
• Coupling misaligned.
• Inlet and/or discharge piping
connected to machine without flexible
connector, causing torque or stress
on casing.
• Machine bolted down, causing
misalignment.
• Bearing(s) cramped due to improper fit.
• Piping not adequately supported.
• Incorrect motor voltage, causing
assembly to operate at improper speed.
• Solids passing through machine.
• Soft foot on motor or blower.
• Machine in surge (see page 8).
• Harmonic pulsation from gasoline
engine driver.
• Machine not mounted on solid
foundation.
Consult Spencer Service Department for cleaning
instructions, install inlet filter to prevent further buildup.
Consult Spencer Service Department.
Replace bearing(s).
Balance motor.
Consult Spencer Service Department.
Consult Spencer Service Department.
Align coupling.
Install flexible connectors at inlet and discharge.
Remove bolts, use dowel pins or set in guide channels.
Check bearings, shaft and housing, correct bearing fit.
Anchor piping properly beyond flexible connector.
Check voltage and wiring connections, correct voltage.
Consult Spencer Service Department regarding machine
cleaning, install inlet filter to prevent further contamination.
Follow alignment procedure on page 6.
Increase airflow.
Change engine speed to remove pulsation.
Reinforce foundation.
VIBRATInG
MACHInE
Indication: Oil leaking from bearing housing
• System component tilted. Make sure blower, oil sump and oiler are level.
• High oil level causing air Decrease oil level in reservoir.
bubbles in oil and high oil
temperatures.
• Adjustable oiler at improper
Reset oil height–see page 9.
height setting (Series 3000,
4000, 5000, 6000 blowers).
• Air leak in oiler reservoir.
Check O-rings and gaskets, remove dirt and
contamination. See Bench Testing Oilers, page 9.
• Vent line missing or Install or reconnect vent line.
disconnected.
• Oiler cap removed and replaced
Screw cap on and off quickly; refill only when oil
too slowly or too often, level is down to 1/4 full.
allowing ‘nuisance feeding.’
• Loose or overtightened
Hand-tighten cap, make sure O-ring is clean and
oiler cap. in good condition.
• Loose fittings. Tighten fittings.
OIL LEAkS