HF-7-604 Page 26
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.
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 manufacturer’s 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
CAUSE
SOLUTION
Knocking
1. Unit out of time.
2. Distortion due to improper
mounting or pipe strains.
3. Excessive pressure differential.
4. Worn gears.
5. Worn bearings.
1. Retime rotors.
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.
Excessive blower temperature.
1. Too much oil in gear case.
2. Too low operating speed.
3. Clogged filter or muffler.
4. Excessive pressure differential.
5. Worn rotor clearances.
6. Internal contact.
1. Reduce oil level.
2. Increase blower speed.
3. Remove cause of obstruction.
4. Reduce pressure differential
across the blower.
5. Replace rotor.
6. Correct clearances.
Impeller end or tip drag.
1. Insufficient assembled clearances.
2. Case or frame distortion.
3. Excessive operating pressure.
4. Excessive operating temperature.
1. Correct clearances.
2. Check mounting and pipe strain.
3. Remove causes.
4. Remove causes.
Lack of volume.
1. Slipping belts.
2. Worn clearances.
3. Dirty air filter
1. Tighten belts.
2. Re-establish proper clearances.
3. Clean or replace air filter
Excessive bearing or gear wear. 1. Improper lubrication.
1. Correct lubrication level. Replace
dirty
oil.
Loss of oil.
1. Bearing housing vents plugged.
2. Worn seal.
1. Clean vents.
2. Replace seals.
Содержание HELIFLOW 8 Series
Страница 13: ...HF 7 604 Page 12 Figure 2 1 HF 825 VERTICAL BLOWER MOUNTING CONFIGURATIONS AND OUTLINE 302HYG800 B Ref Drawing...
Страница 15: ...HF 7 602 Page 14 Figure 2 3 HF 817 VERTICAL BLOWER MOUNTING CONFIGURATIONS AND OUTLINE 304HYG800 B Ref Drawing...
Страница 51: ...HF 7 604 Page 50 SECTION 8 PARTS LIST 18 Parts List Models HYGL_AA and HYGM_AA 304HYG810 B Ref Drawing...
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