Flowserve BP - Manual (Page 20)

BP USER INSTRUCTIONS ENGLISH 85392725 10-09 (E)
Page 20 of 44 flowserve.com
5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN
These operations must be carried
out by fully qualified personnel.
5.1 Pre-commissioning procedure
a) Uncouple pump and motor, and check the
rotating direction of motor by running only the
motor in a few seconds. The rotating direction of
this pump is counter clockwise viewed from the
coupling end. After check; replace the coupling
bolts.
b) Check that the pump rotor turns smoothly when
rotating it by hand. If rotation is not smooth, or
any abnormal sound is heard, disassemble the
pump and check the sliding parts such as
wearing ring, etc.
c) Open valves for cooling and flushing (sealing)
piping where provided.
5.1.1 Lubrication
System
Before operating the pump, the lubrication system
should be thoroughly cleaned to remove any foreign
matter that may have accumulated during shipment,
storage or installation.
To clean the lubrication system:
a) Remove the upper half of bearing cases, journal
bearings, thrust shoes and drain plugs. Refer to
Section 6 Maintenance.
b) Flush out the bearing housings with Kerosene or
other suitable solvent.
c) Wash the journal bearings and thrust shoes with
a suitable solvent.
d) Flush the entire lubrication system with flushing
oil. Flushing oil should be compatible with
lubricating oil that will be used. Follow any
instructions given for the lubrication console.
e) During flushing operation, examine the piping for
leaks and correct as necessary. Also check for
any obstructions that will interfere with free flow
of oil to the bearings
5.1.2 Lubrication
Operation of the unit without correct lubrication
can result in overheating of the bearings, bearing
failures, pump seizure and failure of the equipment,
exposing operating personnel to injury.
Pumps fitted with anti friction bearings will be
supplied with constant level oilers.
Pumps fitted with sleeve and Kingsbury bearings will
be fitted with a forced lubrication system.
Other drivers and gearboxes, if appropriate, should
be lubricated in accordance with their manuals.
5.1.2.1
Constant Level Oiler
When fitted with a constant level oiler, the bearing
housing should be filled with the required amount of
oil. The constant level oiler should be filled with oil
and fitted to the housing.
5.1.2.2
Forced lubrication system
Fill oil reservoir with the required volume of oil.
An auxiliary oil pump supplies oil to the pressure
lubrication system to ensure minimum oil pressure for
start up, shut down or periods when the main oil
pump can not supply sufficient oil.
During operation, oil is supplied from the oil reservoir
by the main oil pump and is directed to the oil cooler.
From the oil cooler, the oil is directed through the oil
filter and is then supplied to the pump/drive bearings.
A back pressure relief valve mounted in the
lubrication system maintains the required system oil
pressure. The system is additionally equipped with a
low pressure, pressure switches, which can be used
to control the unit when the oil pressure in the
lubrication system decreases to predetermined
values or prevents the starting of the unit until
adequate oil pressure is established. Gravity
assisted, sloped oil return line conducts the oil from
the pump/driver bearings back to the system
reservoir.
A check valve is mounted in the auxiliary oil pump
discharge line to prevent oil from returning to the oil
reservoir when the main oil pump is running and the
auxiliary oil pump is shut down.
5.2 Pump lubricants
The lubricating oil should be a high quality mineral oil
having foam inhibitors. The oil should conform to the
following characteristics:
Type Turbine Oil to ISO VG 46
Viscosity@40℃ 46 Cst min
Viscosity@100℃ 7 Cst min
5.2.1 Bearing
Sizes
The BP pump is equipped with heavy duty, externally
mounted antifriction bearings or with babbitted sleeve
and Kingsbury type thrust bearing. Bearing selection
is dependant on pump size and duty conditions.
Details of the bearings fitted to your pump will be
found in the technical data supplied with your pump.