TECO MONARCH GX Instruction Manual
Instruction Manual
MONARCH GX
3 Phase Squirrel Cage
Induction Motors
TECO Australia Pty. Ltd.
MONARCH GX (ME) Installation and Maintenance Manual
Cast Iron TEFC Squirrel Cage Induction Motors
1. HANDLING AND STORAGE
Motors should preferably be stored in their normal orientation. They should be stored in a clean, dry location
away from vibration. Motors with shaft clamps should be stored with the clamps in place.
If motors have been exposed to moisture during long periods of storage then the insulation resistance of the
windings to the frame (earth) should be checked with the aid of a megger (max. d.c. voltage 500V) prior to
installation. Note do not megger Thermistors.
If any motor damage is to be claimed as “warranty”, TECO Australia must be consulted prior to any work being
carried out on motor.
2. INSTALLATION AND OPERATION
Motors should be installed to the requirements of AS3000:2007 SAA Wiring Rules or in line with local
regulations.
The installation of the equipment shall be carried out in a manner that does not reduce the protection afforded
by the equipment design.
When installing the motor the following points should be carefully checked:
rated voltage and frequency
ambient temperature should not exceed 40C, unless confirmed with TECO sales office
altitude does not exceed 1000 meters above sea level
correct connection of motor (see below)
any shaft seals are correctly seated to ensure IP protection
The use of the motor should conform to the specified degree of protection in accordance with AS60034.5-
2009.
Care must be taken to ensure that the cooling air can flow is unhindered. The space between the air i ntake
and the nearest wall should be approximately equal to the shaft height of the motor. Foundations must be
designed in such a way that vibration is avoided when the motor and the driven machine are runnin g coupled.
Care should be taken to ensure that any condensate drain holes/plugs are located at the lowest point of motor
casing. Any shaft clamps to prevent damage to the bearings in transit, must be removed before motor is put
into operation. Before mounting the transmission parts, the motor shaft should be cleaned with a solvent.
Secure the motor to a level surface. Unevenness leads to mechanical deformation of the motor. The motor
should be used only with coupling systems which are elastic with respect to centre offset, angular
displacement, longitudinal shift and torsional strain. Rigid coupling s ystems are not permissible (unless
previously agreed).
If direct coupling is employed check centre offset and angular offset with test arm and dial gauge. The
following deviations should not be exceeded:
Centre offset (radial measurement) 0.03 mm in 2 pole motors. 0.05 mm in motors with more than
2 poles. (the dial shows twice the value of the deviation).
Angular offset (axial measurement) 0.10 mm.
Check alignment at normal operating temperature.
With applications involving belt transmission, unnecessary axial forces on the bearings can be avoided by
positioning the shafts parallel to each other and keeping the pulleys perfectly aligned. The belt tension should
be just sufficiently stretched to prevent slipping in service. If the pulleys are too small the motor shaft is subject
to a high bending force which can result in shaft failure.
The connections for standard MONARCH three phase motors is –
Star connected 415 Volt up to and including 3kW
Delta connected 415 Volt 4kW and larger
This connection is indicated on the connection diagram inside terminal box lid.
TECO Australia Pty Ltd MM-20170203
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