STORAGE
Motors must be stored in a clean,
dry, well ventilated location free
from vibration and rapid or wide
temperature variations. If the unit is
to be stored longer than three
months, consult the factory. Ball
bearing motors are shipped from
the factory properly lubricated and
ready to operate. When in storage,
the motor shaft must be turned
several rotations every month and
the bearing re-lubricated every year.
On non-explosion-proof TEFC
motors, a removable plug in the
bottom of the frame or housing per-
mits removal of accumulated mois-
ture. Drain regularly if storage
atmosphere results in formation of
condensation.
INSTALLATION
Qualified service or maintenance
personnel must handle installation,
The motor foundation must rigidly
support all four feet in the same
plane. Place shims under the motor
feet, as required; so they will not
be pulled out of plane when mount-
ing bolts are tightened. All wiring to
the motor and control must be in
accordance with the National
Electrical Code and all local regula-
tions. Before load is connected,
momentarily energize motor to
check that the direction of rotation
is proper. For direct connected
loads, accurate alignment is 0.004
inch/ft. (Radius to dial Indicator =
one foot)
Any change in shims requires re-
checking alignment. When align-
ment is within limits, dowel two
feet of each unit. When installing
V-belt sheave, spur or helical pinion
or chain drives, be certain that they
are within NEMA limitations. Refer
to NEMA motor and general stan-
dards, MG1-14.07 and 14.41.
INTRODUCTION
THIS EQUIPMENT CONTAINS
HAZARDOUS VOLTAGES,
ROTATING PARTS AND HOT
SURFACES. SEVERE PERSONAL
INJURY OR PROPERTY DAM-
AGE CAN RESULT IF SAFETY
INSTRUCTIONS ARE NOT FOL-
LOWED. ONLY QUALIFIED PER-
SONNEL SHOULD WORK ON
OR AROUND THIS EQUIPMENT
AFTER BECOMING THOR-
OUGHLY FAMILIAR WITH ALL
WARNINGS, SAFETY NOTICES,
AND MAINTENANCE PROCE-
DURES CONTAINED HEREIN.
THE SUCCESSFUL AND SAFE
OPERATION OF THIS EQUIP-
MENT IS DEPENDENT UPON
PROPER HANDLING, INSTALLA-
TION, OPERATION AND MAIN-
TENANCE.
INSPECTION
Care is taken at the factory to
assure that the motor arrives at its
destination in first class condition. If
there is evidence of rough handling
or damage in shipping, file a claim
at once with the carrier and notify
your Siemens Sales Office.
Examine the outside of the motor
carefully for damage, with particular
attention to conduit box, fans, and
covers. Inspect and tighten all hard-
ware and accessories, which may
have become loosened during ship-
ping and handling. Turn the shaft by
hand to be sure that it rotates
freely. If the motor has been mis-
handled sufficiently to break exter-
nal parts, the end shield should also
be removed to check for internal
damage unless the motor is explo-
sion proof. See warning below on
explosion proof motors.
November 1999
INSTALLATION & OPERATION
WARNING
4
Explosion.
Can cause death, serious injury or property damage.
When repairing and reassembling a motor that has an under-
writer’s label, it is imperative that the unit be re-inspected and:
1 All original fits and tolerances are maintained.
2 All plugs and hardware be securely fastened.
3 Any parts replacements, including hardware, be accurate
duplicates of the Originals.
Repair work on explosion proof-motors can only be performed
by the original manufacturer or U.L. certified shops. Violations
of any of the above items will invalidate the significance of the
U.L. Label.
