SB--7--626 Page 12
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.
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.
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
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.
PROBLEM
POSSIBLE CAUSES
SOLUTION
1.
Unit out of time.
1.
Re--time impellers.
2.
Distortion due to improper
2.
Check mounting alignment and
mounting or pipe strains.
relieve pipe strains.
Knocking
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.
5.
Worn bearings.
5.
Replace bearings.
6.
Worn bearing cartridges.
6.
Replace cartridges.
1.
Too much oil in gear case.
1.
Reduce oil level.
Excessive blower
2.
Too low operating speed.
2.
Increase blower speed.
temperature.
3.
Clogged filter or muffler.
3.
Remove cause of obstruction.
4.
Excessive pressure differential.
4.
Reduce pressure differential
across the blower.
5.
Worn impeller clearances.
5.
Replace impeller.
6.
Internal contact.
6.
Correct clearances.
1.
Insufficient assembled
1.
Correct clearances.
clearances.
Impeller end
2.
Case or frame distortion.
2.
Check mounting and pipe strain.
or tip drag.
3.
Excessive operating pressure.
3.
Remove cause.
4.
Excessive operating temperature.
4.
Remove cause.