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SAFETY PRECAUTIONS
1.
Do not operate blower with open inlet or outlet port.
2.
Do not exceed specified vacuum or pressure
limitations.
3.
Do not operate above or below recommended
blower speed range. See FIGURE 9, page 10.
4.
Blower is not to be used where non--sparking
equipment is specified.
5.
Do not operate without belt guard or coupling
shield.
TROUBLE SHOOTING
No matter how well the equipment is designed and
manufactured, there may be times when servicing will
be required due to normal wear, the need for
adjustment, or various external causes. Whenever
PROBLEM
Knocking
Excessive blower
temperature.
Impeller end
or tip drag.
POSSIBLE CAUSES
1.
Unit out of time.
2.
Distortion due to improper
mounting or pipe strains.
3.
Excessive pressure differential.
4.
Worn gears.
5.
Worn bearings.
6.
Worn bearing cartridges.
1.
Too much oil in gear case.
2.
Too low operating speed.
3.
Clogged filter or muffler.
4.
Excessive pressure differential.
5.
Worn impeller clearances.
6.
Internal contact.
1.
Insufficient assembled
clearances.
2.
Case or frame distortion.
3.
Excessive operating pressure.
4.
Excessive operating temperature.
SB- -7- -626
Do not exceed sheave or coupling
manufacturers' rim speed limit.
6.
The blower and blower discharge piping may be
extremely hot and can cause skin burns on
contact.
equipment needs attention, the operator or repairman
should be able to locate the cause and correct the
trouble quickly. The Trouble Shooting Chart below is
provided to assist the mechanic in those respects.
SOLUTION
1.
Re--time impellers.
2.
Check mounting alignment and
relieve pipe strains.
3.
Reduce to manufacturer's
recommended pressure. Examine
relief valve, re-set if necessary.
4.
Replace timing gears.
5.
Replace bearings.
6.
Replace cartridges.
1.
Reduce oil level.
2.
Increase blower speed.
3.
Remove cause of obstruction.
4.
Reduce pressure differential
across the blower.
5.
Replace impeller.
6.
Correct clearances.
1.
Correct clearances.
2.
Check mounting and pipe strain.
3.
Remove cause.
4.
Remove cause.
Page 12
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