Flowserve 6LR-18A, Руководство пользователя

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GEI 56128-L
© Copyright 2016 General Electric Company
11
F. Cleaning with Water and Detergent
This method is very effective in cleaning windings when used with a low-pressure steam jenny maximum steam flow
30 psi and 90

C
.
CAUTION
:
To minimize possible damage to varnish and insulation, a fairly neutral non-conductive
type of detergent such as DuBois Flow should be used. A pint of detergent to 76 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.
Dry the windings. Refer to the Insulation Resistance section in IV A. above, for instructions on how to proceed
.
G. Anti-Friction Bearings and Lubrication
The grease used as a lubricant in grease-lubricated anti-friction bearings does not lose its lubricating ability suddenly,
but over a period of time. For a given bearing construction and assembly, the lubricating ability of a grease over time
depends primarily on the type of grease, the size of the bearing, the speed at which the bearing rotates and the
severity of operating conditions. As a result, it is not possible to accurately predetermine when new grease must be
added. But, good results can be obtained if the general recommendations stated in this manual are followed.
The primary function of grease is to supply the essential lubrication oil from the sponge-like reservoir of its soap
structure. Grease-lubricated anti-friction bearings consume only a small amount of lubricant. This lubricant must
always be present to avoid rapid wear and bearing failure. However, excessive or too frequent lubrication may also
damage the motor.
Ball bearing motors are adequately lubricated at the factory. Motors with grease fittings should be lubricated in
accordance with these instructions to provide maximum bearing life.
To obtain optimum results, Exxon Mobil Polyrex EM (General Electric Specification D6A2C23) polyurea grease should
be used for lubrication, unless special grease is specified on the motor’s nameplate.
See Section XI Lubrication Guide for greasing frequency and recommended quantity of grease. If in doubt, refer to GE
Energy.
CAUTION: Failure to use polyurea base (NLGI Grade 2) or known compatible grease could result in
premature bearing failure.
The procedure below must be followed for safe and effective re-greasing. The recommended frequency and quantity
of grease is stated in tables 5 and 6.
WARNING
: L
ubrication maintenance should be performed with the motor stationary and
disconnected from the power source. Extreme caution must be exercised to avoid contact with
rotating parts or electrical wiring if the motor must be lubricated while running. Extreme caution
must be exercised to avoid contact with rotating parts or electrical wiring if the motor must be lubricated while
running. Failure to observe these precautions may result in damage to the equipment, injury to personnel, or both
.
1. Run the motor until warm.
2. Stop the motor and disconnect it from the power supply.
3. Clean dirt and debris from around the inlet lubrication fitting and the grease relief plug.
4. Remove the relief plug and clean the opening and relief tube of hardened grease. This may be
accomplished with a twisted wire brush or sturdy pipe cleaner.