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Sunco Blowers www.suncoblowers.com
Phone: 704-545-3922 Pg. 30
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Sunco Blowers
10.3.1 Trouble Shooting Guide
PROBLEM
POSSIBLE CAUSES
SOLUTION
1. Unit out of time.
1. Re-time impellers
2. Distortion due to improper
mounting or pipe strains.
2. Check mounting alignment and
relieve pipe strains.
3. Excessive pressure differential.
3. Reduce to manufacturer’s
recommended pressure. Examine
relief valve, re-set if necessary.
4. Worn gears.
4. Replace timing gears.
Knocking
5. Worn bearings.
5. Replace bearings.
1. Too much oil in gear case.
1. Reduce oil level.
2. Too low operating speed.
2. Increase blower speed.
3. Dirty air Filter.
3. Clean or replace air filter
4. Clogged filter or muffler.
4. Remove cause of obstruction.
5. Excessive pressure differential.
5. Reduce pressure differential across
the blower.
6. Worn impeller clearances.
6. Replace impeller.
Excessive blower
temperature
7. Internal contact.
7. Correct clearances.
1. Insufficient assembled clearances 1. Correct clearances.
2. Case or frame distortion.
2. Check mounting and pipe strain.
3. Excessive operating pressure.
3. Remove cause.
Impeller end or
tip drag
4. Excessive operating temperature.
4. Remove cause
1. Slipping belts.
1. Tighten belts.
2. Worn clearances.
2. Re-establish proper clearances.
Lack of volume.
3. Dirty air filter
3. Clean or replace air filter.
Excessive
bearing or gear
wear
1. Improper lubrication.
1. Correct lubrication level.
Replace dirty oil or greasing.
1. End plate, gear case or drive
cover vents plugged.
1. Clean vents.
Loss of oil
2. Worn Seal.
2. Replace seals.
