Hobart 60PL20 Operation And Maintenance Manual page 175

UNUSUAL SERVICE CONDITIONS
This information is a general guideline and cannot cover all possible conditions of equipment use. The
specific local environments may be dependent upon conditions beyond the manufacturer's control. The
manufacturer should be consulted if any unusual conditions of use exist which may affect the physical con-
dition or operation of the equipment.
Among such conditions are :
1. Exposure to:
A. Combustible, explosive, abrasive or conducting dusts.
B. Environments where the accumulation of lint or excessive dirt will interfere with normal ventilation.
C. Chemical fumes, flammable or explosive gases.
D. Nuclear radiation.
E. Steam, salt-laden air, or oil vapor.
F. Damp or very dry locations, radiant heat, vermin infestation, or atmospheres conducive to fungus
growth.
G. Abnormal shock, vibration or mechanical loading from external sources during equipment opera-
tion.
H. Abnormal axial or side thrust imposed on rotating equipment shafts.
I. Low and/or high ambient temperatures.
2. Operation at:
A. Voltages above or below rated voltage.
B. Speeds other than rated speed.
C. Frequency other than rated frequency.
D. Standstill with rotating equipment windings energized.
E. Unbalanced voltages.
F. Operation at loads greater than rated.
3. Operation where low acoustical noise levels are required.
4. Operation with:
A. Improper fuel, lubricants or coolant.
B. Parts or elements unauthorized by the manufacturer.
C. Unauthorized modifications.
5. Operation in poorly ventilated areas.
December 31/91 Revised
OM-2053
Unusual Service Conditions
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