Flowserve LNGT - Manual (Page 24)

LNGT USER INSTRUCTIONS ENGLISH 00083107 02-08
Page 24 of 48
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box] including any temperature, earth leakage,
current and other protective devices as appropriate.
The identification nameplate should be checked to
ensure the power supply is appropriate.
A device to provide emergency stopping must
be fitted.
If not supplied pre-wired to the pump unit, the
controller/starter electrical details will also be
supplied within the controller/starter.
For electrical details on pump sets with controllers
see the separate wiring diagram.
See section 5.3, Direction of rotation
before connecting the motor to the electrical supply.
Baseplates have a special earthing boss for
discharging [static] electricity as shown below.
Connect the earthing boss of the pump unit in
accordance with the applicable instructions or
commission an approved electrical engineer to
carry out the work.
When this earthing boss is not applied this is
written in the Supplementary User Instructions.
4.7 Protection systems
The following protection systems are
recommended particularly if the pump is installed in
a potentially explosive area or is handling a
hazardous liquid. If in doubt consult Flowserve.
If there is any possibility of the system allowing the
pump to run against a closed valve or below
minimum continuous safe flow a protection device
should be installed to ensure the temperature of the
liquid does not rise to an unsafe level.
If there are any circumstances in which the system
can allow the pump to run dry, or start up empty, a
power monitor should be fitted to stop the pump or
prevent it from being started. This is particularly
relevant if the pump is handling a flammable liquid.
If leakage of product from the pump or its
associated sealing system can cause a hazard it is
recommended that an appropriate leakage
detection system is installed.
To prevent excessive surface temperatures at
bearings it is recommended that temperature or
vibration monitoring are carried out. See sections
5.7.4 and 5.7.5.
5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN
These operations must be carried
out by fully qualified personnel.
5.1 Pre-commissioning procedure
5.1.1 Lubrication
Determine the mode of lubrication of the pump set,
eg grease, oil, product lubrication etc.
For oil lubricated pumps, fill the
bearing housing with correct grade of oil to the correct
level.
sight [gauge] glass and/or
constant level oiler [CLO].
When fitted with a constant level oiler, the bearing
housing should be filled by unscrewing or hinging
back the transparent bottle and filling the bottle with
oil.
Check General Arrangement drawing
whether another filling point is indicated. Read also
the applicable section in the User Manual for the
attached instrumentation.
The oil filled bottle should then be refitted so as to
return it to the upright position. Filling should be
repeated until oil remains visible within the bottle.
Approximate oil volumes are shown in section
3.4.2, Pump and impeller data.