HP FM Centrifugal Pump PCN=71576526 - Manual (Page 23)

FM USER INSTRUCTIONS ENGLISH 71576526 - 03/07
Page 23 of 32
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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 are used to clean
the machines, the operator and those people in the
vicinity must be careful and have appropriate gas-
protection, wearing at least eye protectors.
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 pieces with inflammable solvents or
carbon tetrachloride.
Protect yourself against toxic fumes when cleaning
pieces with 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 packing 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 corre ct operation of the system.
The equipment used for maintenance and
disassembly in an ATEX zone must be in conformity
with the requirements zone.
Our specialist service personnel can help with
preventative maintenance records and provide
condition monitoring for temperature and vibration to
identify the onset of potential problems.
If any problems are found the following sequence of
actions should take place:
a) Refer to section 7, Faults; causes and remedies,
for fault diagnosis.
b) Ensure equipment complies with the
recommendations in this manual.
c) Contact Flowserve if the problem persists.
6.2.1 Standard maintenance
Roller bearing
MAINTENANCE
OPERATION
FREQUENCY OBSERVATIONS
Start (example of a
stand-by pump)
Weekly
Check the running
state
Evacuation of
condensation
water closed motor
Weekly
- Increase
frequency for
frequent
stops/starts
Lubrication of all
bearing types
Greased for life