6 maintenance, 1 general, 2 maintenance schedule – Flowserve MEN User Manual

Page 26

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MEN USER INSTRUCTIONS ENGLISH 71576288 - 02/13

Page 26 of 36

flowserve.com

Cleaning once the pump has been commissioned
will depend on the application and operating
conditions. The user must ensure that the cleaning
procedures are suitable for the application and
operating conditions, and local regulations.

6 MAINTENANCE

6.1 General

If a belt drive is used, the assembly and

tension of the belts must be verified during regular
maintenance procedure.

In dirty or dusty environments, regular checks

must be made and dirt removed from areas around
close clearances, bearing housings and motors.

It is the plant operator's responsibility to

ensure that all maintenance, inspection and
assembly work is carried out by authorized and
qualified personnel who have adequately
familiarized themselves with the subject matter by
studying this manual in detail. (See also section
1.6.2).

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 5.6.

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 guardrails 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".

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. It should include the following:
a) The pump must be completely vented and

drained and rendered inert before any
disassembly operation.

b) Any auxiliary systems installed must be

monitored, if necessary, to ensure they function
correctly.

c) During cleaning of the pump ensure the

compatibility between the cleaning products and
the gaskets.

d) Verify the condition of the gaskets.
e) Gland packings must be adjusted correctly to

give visible leakage and concentric alignment of
the gland follower to prevent excessive
temperature of the packing or follower.
Mechanical seals should present no leakage.

f) Check for any leaks from gaskets and seals.

The correct functioning of the shaft seal must be
checked regularly.

g) Check bearing lubricant level, and if the hours

run show a lubricant change is required.

h) Check that the duty condition is in the safe

operating range for the pump.

i)

Check vibration, noise level and surface
temperature at the bearings to confirm
satisfactory operation.

j)

Check the tightness of the connections.

k) Check dirt and dust is removed from areas

around close clearances, bearing housings and
motors.

l)

Check coupling alignment and re-align if
necessary.

m) Verify the correct operation of the system.

The equipment used for maintenance and
disassembly in an ATEX zone must be in conformity
with the requirements zone.

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