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09
TROUBLESHOOTING
Manual 4804 Rev C p/n 004804 0000
Although Tuthill Vacuum & Blower Systems blowers are well designed and manufactured, problems may occur
due to normal wear and the need for readjustment. The following chart lists symptoms that may occur along
with probable causes and remedies.
SYMPTOM PROBABLE CAUSE REMEDIES
Seals leaking
Seal incorrectly
installed
Reinstall seal.
Seal worn or damaged Replace seal.
Reduced capacity
Rotational speed too
low
Check supply voltage.
Vacuum leak Locate and repair.
High sealant
temperature
Check coolant À ow and temperature. Check heat
exchanger cleanliness.
Incorrect sealant À ow
rate
See Procedure for Minimum Sealant Flow Rate on
page 15.
Excessive noise
Defective bearing Replace.
Too much sealant
liquid
Decrease À ow rate.
Coupling misaligned Align.
Cavitation (de¿ ned
in Procedure for
Minimum Sealant
Flow Rate on page
15)
Open attenuating valve or reset vacuum relief valve to
increase À ow.
Overheating
Defective bearing Replace.
High sealant
temperature
Check coolant À ow and temperature.
Suction open to
atmosphere
Adjust isolation valve.
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