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Before proceeding read Section 1 2 on Mechanical Safety. Failure to
follow the instructions in Section 1 2 could result in serious personal
injury, death and/or property damage
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Motors with the temperature code stated on the nameplate are
designed to operate within this limit. Improper application or
operation can cause the maximum surface temperature to be
exceeded. A motor operated in a Hazardous Location that exceeds
this surface temperature limit increases the potential of igniting
hazardous
materials.
factor value, (2) Ambient temperature above nameplate value, (3)
Voltages outside of limits (3.4.1.3), (4) Loss of proper ventilation, (5)
VFD operation exceeding motor nameplate rating, (6) Altitude above
3300 feet / 1000 meters, (7) Severe duty cycles, (8) Repeated starts,
(9) Motor stall, (10) Motor reversing, and (10) Single phase
operation. Failure to follow these instructions could result in serious
personal injury, death and/or property damage.
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Normal motor surface temperatures may exceed 90 ° C (194° F).
Touching the motor frame may cause discomfort or injury. Surface
temperatures should only be measured with suitable instruments and
not estimated by hand touch.
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understand these instructions including all warnings, cautions
and safety notice statements.
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heck winding insulation integrity with a Megger. If winding
resistance to ground is less than 1.5 Meg ohms consult the local
authorized service shop before energizing the motor.
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bolts and nuts. Manually rotate the motor shaft to ensure motor
shaft rotates freely. Note: Shaft & bearing seals will add drag.
Inspect all electrical connections for proper
terminations, clearance, mechanical tightness and electrical
continuity. Be sure to verify connections are made per the
nameplate connection diagram or separate connection plate.
Replace all panels and covers that were removed during
installation before energizing the motor.
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If practical check motor rotation before coupling to the load.
Unlock the electrical system.
motor to verify direction of rotation. If opposite rotation is
required, lock out power before reconnecting motor. If motor has
a rotational arrow only operate the motor in the rotation
identified. Reapply power to ensure proper operation.
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To establish a baseline value check and record
the no load amps, watts, and voltage.
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understand these instructions including all warnings, cautions
safety notice statements.
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is properly aligned and not binding. Check that all guards and
protective devices are properly installed.
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When all personnel are clear of the
machine, apply power and verify that the load is not transmitting
excessive vibration back to the motor though the shaft or the
foundation. Verify that motor amps are within nameplate rating.
For repeated starts see 3.4.5.3. The equipment can now be
fully loaded and operated within specified limits as stated on the
nameplate.
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(1) Motor load exceeds service
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Before startup carefully read and fully
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Check tightness of all
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Momentarily provide power to
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Before startup carefully read and fully
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Check that the connected equipment
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Do not start more than twice in succession under full load.
Repeated starts and/or jogs of induction motors can cause
overheating and immediate failure. Contact the motor manufacturer
if it is necessary to repeatedly start or jog the motor.
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Division 1 Hazardous Locations motors can only be modified or repaired
by the manufacturer or a facility that is Listed under UL's category
"Motors and Generators, Rebuilt for use in Hazardous Locations". Failure
to follow these instructions could result in serious personal injury, death
and/or property damage.
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Electrical connections are to be made by qualified electrical personnel in
accordance with all applicable codes, ordinances and sound practices.
Failure to follow these instructions could result in serious personal injury,
death and/or property damage. Only qualified personnel who are familiar
with the applicable national codes, local codes and sound practices
should install or repair electric motors and their accessories.
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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).
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Inspect the motor approximately every 500 hours of operation or every
three months, whichever occurs first. Keep the motor clean and the
ventilation and fin openings clear.
performed at each inspection:
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exterior of the motor is free of dirt, oil, grease, water, etc, which can
accumulate and block motor ventilation. If the motor is not properly
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ventilated, overheating can occur and cause early motor failure.
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the integrity of the winding insulation has been maintained. Record
the Megger readings. If winding resistance to ground is less than 1.5
Meg ohms consult the local authorized service shop before re
energizing the motor.
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connectors to be sure that they are tight.
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The lubricating ability of grease (over time) depends primarily on the
type of grease, the size of the bearing, the speed at which the bearing
operates and the severity of the operating conditions. Longer bearing
life can be obtained if the listed recommendations are followed:
NOTE: If lubrication instructions are provided on the motor nameplate,
the nameplate instructions will supersede these instructions. Motors
marked "Permanently Lubricated" do not require additional service.
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Lubricant should be added at a steady moderate pressure. If added
under heavy pressure bearing shield(s) may collapse. Over greasing
bearings greatly increases bearing friction and can cause premature
bearing and/or motor failure.
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conditions is Mobil Polyrex ® EM. Equivalent and compatible greases
include: Texaco Polystar RB, Rykon Premium #2, Pennzoil Pen 2
Lube, Chevron SRI & Mobil SHC 100.
temperature grease is recommended, such as Aeroshell 7 or Beacon
325 for ball bearings and Mobil SHC 100 for roller bearings.
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The following steps should be
* Check that the ventilation openings and/or
: Use a "Megger" periodically to ensure that
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Check all electrical
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