Flowserve DMX - Manual (Page 31)

DMX/DMXD/DMXH/DMXDH USER INSTRUCTIONS ENGLISH 85392728 - 10/09
Page 31 of 60
a low pour point to give a viscosity similar to that
of ISO 46 (for maximum oil operating
temperatures of 180 °F) or ISO 32 (for maximum
oil operating temperatures of 120 °F).
ISO 46 is recommended for continuous
operating oil temperatures between 38 °C (100 °F)
and 82 °C (180 °F), with a minimum startup
temperature of 16 °C (60 °F); ISO 32 may be
considered for continuous operating oil temperatures
between 16 °C (60 °F) and 49 °C (120 °F), with a
minimum start up temperature of 4 °C (40 °F). For
startup when oil temperature is below 4 °C (40 °F), oil
preheating is recommended.
5.2.4
Cleaning the lubrication system prior to
operation
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 refer to the Sectional
drawing and proceeds as follows:
a) Remove the bearing caps, bearing linings, thrust
shoes and drain plugs.
b) Flush out the bearing housings with kerosene or
other suitable solvent.
c) Wash the bearing linings and thrust shoes with a
suitable solvent.
d) Flush the entire lubrication system with 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.
f) After flushing, replace drain plugs. Reassemble
bearings and torque end cover bolting. (Refer to
maintenance section.)
g) Refer to driver instruction book for instructions
covering flushing of driver bearings.
5.3 Impeller wearring clearance
Please refer to the sectional drawing for ring and
bushing clearance value.
5.4 Direction of rotation
Check pump rotating by starting
momentarily the direction of rotation is shown in 1.5
duty conditions, Note pump coasts to a gradual stop.
5.5 Guarding
Guarding is supplied and fitted to the pump
set.
Fasteners must remain captive in the guard
when the guard is removed to comply with
Machinery Directive 2006/42/EC.
Whenever guarding is removed or disturbed
ensure that all the protective guards around the
pump coupling and exposed parts of the shaft are
securely fixed.
5.6 Priming and auxiliary supplies
Ensure all electrical, hydraulic,
pneumatic, sealant and lubrication systems (as
applicable) are connected and operational.
Ensure the inlet pipe and pump casing
are completely full of liquid before starting continuous
duty operation.
5.7 Starting the pump
5.7.1
Initial start up
See 5.1.3 Initial start up procedure.
5.7.2
Normal start up
The starting procedure to be followed for normal
start-up is the same as that for initial start-up. When
automatic recycle valve is used, discharge valve can
be opened.
5.8 Running or operation
Do not wipe down in the vicinity of rotating
parts, if unusual noise or vibrations occur, secure
the pump as soon as possible.