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Bearings are grease packed
at the factory; relubrication upon receipt of motor or while in storage
is not necessary. If stored more than one year, add grease per
lubrication instructions (Table 4 4) before start up.
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It is recommended that the motor
shaft be rotated 5 to 10 rotations every three months to distribute the
grease in the bearings. This will reduce the chance for corrosion to
form on the bearing rolling elements and raceways. Note: Shaft
seals and bearing seals may add drag.
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Treat
unpainted flanges, shafts, and fittings with a rust inhibitor. Apply
appropriate power to the motor’s space heaters (if so equipped)
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Only qualified personnel who are familiar with the
appropriate national code, local codes and sound practices should install
or repair electrical motors and their accessories. Installation should
conform to the appropriate national code as well as local codes and
sound practices. Failure to follow these instructions could result in serious
personal injury, death and/or property damage.
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Do not touch electrically live parts. Disconnect, Lockout and Tag input
power supply before installing or servicing motor (includes accessory
devices). Use a voltmeter to verify that power is off before contacting
conductors.
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Consideration should be
given to environment and ventilation. Motors should be installed in
an area that is protected from direct sunlight, corrosives, harmful
gases or liquids, dust, metallic particles, and vibration. A motor with
the proper enclosure for the expected operating condition should be
selected. Provide accessible clearance for cleaning, repair, service,
and inspections (See section 3.1.3 for construction clearances).
The location should be considered for possible future motor removal
/ handling. The free flow of air around the motor should not be
obstructed.
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The ambient
temperatures of the air inlet to the motor should not exceed 40°C
(104°F) or be less than 30°C ( 22°F) unless the motor nameplate
specifically states an ambient temperature outside of these limits.
The ambient inside an enclosure built around the motor shall not
exceed the nameplate ambient. For ambient temperatures outside of
these limits consult the motor manufacturer.
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Insulation at high temperatures ages at an accelerated rate. Each
10°C increase in temperature reduces the insulation life by one half.
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Division 1 Hazardous Locations motors shall
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be operated
below –25°C
( 13°F) ambient. (Low temperatures reduce the
component mechanical properties.)
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are intended for use
indoors where the atmosphere is relatively clean, dry,
and
non corrosive.
Recommended
a
minimum
clearance of ½ the shaft height between vent openings
and the nearest obstruction.
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are suitable for
indoor or outdoor standard service applications.
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)
motors must be
mounted in the air stream. When the motor nameplate states a
minimum airflow the motor must be mounted in an air stream
meeting this minimum value.
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motors must meet a
minimum distance of ½ the shaft height between the fan guard
grill openings and the nearest obstruction.
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Hazardous
Locations motors are intended for installations in accordance with
NEC Article 500. For all installations involving Hazardous
Locations motors, consult the applicable national codes, local
codes, and the authority having jurisdiction.
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Use only
motors that are UL Listed and CSA Certified or UL Listed and
UL Certified for Canada.
These motors bear a separate
nameplate that includes the UL Listing Mark and CSA
Certification Mark or includes the UL Listing Mark and the UL
Mark for Canada. This plate also bears the phrase: “ Electric
motor for Hazardous Locations” and is marked with the Class,
Group and Operating Temperature Code.
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Use only motors that
are CSA Certified
and bear the CSA Certification Mark.
These motors include a phrase on the main motor nameplate
that indicates the motor is CSA Certified for Class I, Division 2
/ Zone 2 locations.
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Use only Class II
motors as described above under “Division I Installations”.
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A motor should never be placed in an area with a hazardous
process or where flammable gases or combustible materials may
be present unless it is specifically designed and nameplated for
this type of service. Hazardous Locations motors are intended for
installations in accordance with NEC Article 500. For all
installations involving Hazardous Locations motors, consult the
NEC, local codes, and the authority having jurisdiction. Failure to
follow these instructions could result in serious personal injury,
death and/or property damage. (For other limitations see section
1.3)
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The motor must be securely
installed to a rigid foundation or a mounting surface to minimize
vibration and maintain alignment between the motor shaft and the
load’s shaft. The mounting surfaces of the four mounting pads must
be flat within 0.01 inches for 210 frame & smaller; 0.015 inches for
250 frame & larger. [IEC 0.25 mm for 130 frame & smaller, 0.38 mm
for 160 frame & larger]. This may be accomplished by shims under
the motor feet. For special isolation mounting, contact manufacturer
for assistance
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Most
Dripproof rigid base (footed) motors do
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meet “Dripproof”
requirements when mounted vertically. If the motor is located in
unprotected environments, the addition of a drip cover may be
available. Drip covers not available for cast iron rigid base motors.
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The lifting provision on standard horizontal footed motors is not
designed for lifting the motor in a vertical shaft up or shaft down
position. (see 2.2.1 lifting angles). Lifting method / provisions for
