Spencer Power Mizer Multistage Centrifugal Cast Blowers Manual

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