HPXM USER INSTRUCTIONS ENGLISH 14983571 - 03/11
Page 30 of 48
If pump stops abruptly when driver is
shut down, investigate for pump binding. Take
necessary remedial action before restarting
pump.
b) Close the pump suction and discharge valve.
c) Close valve in bypass line
d) Turn off cooling liquid.
e)
If pump is subjected to freezing
temperatures the pump must be drained of
liquid to prevent damage to the pump.
5.10 Hydraulic, mechanical and
electrical duty
This product has been supplied to meet the
performance specifications of your purchase order,
however it is understood that during the life of the
product these may change. The notes on section 3.4
may help the user decide how to evaluate the
implications of any change. If in doubt contact your
nearest Flowserve office.
6 MAINTENANCE
6.1 General
It is the plant operator's responsibility to ensure
that all maintenance, inspection and assembly work
is carried out by authorised and qualified personnel
who have adequately familiarised themselves with
the subject matter by studying this manual in detail.
(See also section 1.6)
Any work on the machine must be performed when it
is at a standstill. It is imperative that the procedure
for shutting down the machine is followed, as
described in section 5.9.
On completion of work all guards and safety devices
must be re-installed and made operative again.
Before restarting the machine, the relevant
instructions listed in section 5,
“Commissioning, start
up, operation and shut down”
must be observed.
Oil and grease leaks may make the ground
slippery. Machine maintenance must always
begin and finish by cleaning the ground and the
exterior of the machine.
If platforms, stairs and guard rails are required for
maintenance, they must be placed for easy access to
areas where maintenance and inspection are to be
carried out. The positioning of these accessories
must not limit access or hinder the lifting of the part to
be serviced.
When air or compressed inert gas is used in the
maintenance process, the operator and anyone in the
vicinity must be careful and have the appropriate
protection.
Do not spray air or compressed inert gas on skin.
Do not direct an air or gas jet towards other people.
Never use air or compressed inert gas to clean
clothes.
Before working on the pump, take measures to
prevent an uncontrolled start. Put a warning board
on the starting device with the words:
"Machine under repair: do not start"
.
With electric drive equipment, lock the main switch
open and withdraw any fuses. Put a warning board
on the fuse box or main switch with the words:
"Machine under repair: do not connect".
Before attempting any inspection or
repair on the pump, the driver controls must be in the
"off" position, locked and tagged to prevent injury to
personnel performing service on the pump.
Before attempting to disassemble pump, pump
must be isolated from system, by closing suction and
discharge system valves, drained of liquid and
cooled, if pump is handling hot liquid.
Never clean equipment with inflammable solvents or
carbon tetrachloride. Protect yourself against toxic
fumes when using cleaning agents.
6.2 Maintenance schedule
It is recommended that a maintenance plan and
schedule is adopted, in line with these User
Instructions, to include the following:
a) Any auxiliary systems installed must be
monitored, if necessary, to ensure they function
correctly.
b) Check for any leaks from gaskets and seals. The
correct functioning of the shaft seal must be
checked regularly.
c) Check bearing lubricant level, and if the hours
run show a lubricant change is required.
