Installation instructions
GEI-M1011A
Suction should be used to remove dirt and dust particles
from windings to avoid driving particles into the windings
and damaging the coils.
CAUTION: Care must be taken to
make sure that the air supply is dry
and that excessive air pressure is not
used. Generally a pressure of not more
than 200 kPa (30 PSI) is recommended.
WARNING: Operator must not use
compressed air to remove dirt or dust
from his person or clothing.
3. Cleaning with Water and
Detergent
This method is very effective in cleaning windings when
used with a low pressure steam jenny (maximum steam flow
206 kPa (30 PSI) and 90ยบC).
CAUTION: To minimize possible
damage to varnish and insulation, a
fairly neutral, non-conducting type of
detergent such as Dubois Flow should
be used. 0.5 liters (1 pint) of detergent to 75 liters
(20 gallons) of water is recommended.
If a steam jenny is not available, the cleaning solution may
be applied with warm water by a spray gun. After the
cleaning operation, the windings should be rinsed with water
or low pressure steam. It is advisable to dry the windings.
Refer back to Insulation Resistance section for instructions
on how to proceed.
4. Cleaning With Solvents
WARNING: Many cleaning fluids are
flammable and/or toxic to prevent
injury to personnel and property.
Care should be taken to avoid
flames, sparks, etc. Safety glasses should be
used and contact with the skin should be
avoided. The area should be well ventilated or
protective equipment should be used.
Although cleaning with water and detergent is the preferred
method, solvent cleaning may be used when heat drying
facilities are not available.
1,1,1 Trichloroethane is recommended for use as the
cleaning solvent. Solvent cleaning of silicone insulated
windings (Class H insulated machines) is not recommended.
WARNING: While 1,1,1,
trichloroethane is considered to be
non-flammable and has a relatively
low order of toxicity, it should be
used only in a well ventilated area that is free
from open flames. Avoid prolonged exposure to
its vapor. Failure to observe these precautions
may result in injury to personnel.
Windings cleaned with solvent should be dried thoroughly
by circulation of dry air before voltage is applied.
5. Revarnishing Windings
After several cleanings with water and detergent, it may be
necessary to revarnish the windings. Varnish is available
from the General Electric Company Insulating Materials
Department of GE Service Shops.
VI. RENEWAL PARTS
To order parts visit GE Support Services at
http://www.gess.ge.com.
When ordering parts, give description and state quantity of
parts desired, together with the nameplate rating, model, and
serial number of the motor. For couplings, also specify the
type, bore, and keyway size.
Requests for additional copies of these instructions or
inquiries for specific information should be addressed to the
nearest sales office of the General Electric Company.
* One commercial source of 1,1,1 Trichloroethane is
Chlorothene NU, which is a trademark of the Dow
Chemical Company, Midland, Michigan.
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