Flowserve WPG IDP - Manual (Page 20)

WPG and WPH USER INSTRUCTIONS ENGLISH 26999969 10-12
Page 20 of 40
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6.2.1 Routine inspection (daily/weekly)
The following checks should be made
and the appropriate action taken to remedy any
deviations:
a)
Check operating behaviour. Ensure noise,
vibration and bearing temperatures are normal.
b) Check that there are no abnormal fluid l leaks
(static and dynamic seals).
c) Check shaft seal leaks are within acceptable limits.
d)
Check running hours since last recharge of
grease or complete grease change.
e) Check any auxiliary supplies eg heating/cooling
(if fitted) are functioning correctly.
Refer to the manuals of any associated
equipment for routine checks needed.
6.2.2 Periodic inspection (six monthly)
a) Check foundation bolts for
security of attachment and corrosion.
b) Check pump running records for hourly usage to
determine if bearing lubricant requires changing.
Refer to the manuals of any associated
equipment for periodic checks needed.
6.2.3 Re-lubrication
For general guidelines refer to section 5.1,
Lubrication.
Lubricant and bearing temperature analysis can be
useful in optimizing bearing change intervals.
6.2.4 Mechanical seals
When leakage becomes unacceptable the seal will
need replacement.
6.3 Spare parts
6.3.1 Ordering of spares
Flowserve keeps records of all pumps that have been
supplied. When ordering spares the following
information should be quoted:
1) Pump serial number.
2) Pump size.
3) Part name – taken from section 8.
4) Part number – taken from section 8.
5) Number of parts required.
The pump size and serial number are shown on the
pump nameplate.
To ensure continued satisfactory operation,
replacement parts to the original design specification
should be obtained from Flowserve. Any change to
the original design specification (modification or use
of a non-standard part) will invalidate the pump’s
safety certification.
6.3.2 Storage of spares
Spares should be stored in a clean dry area away
from vibration. Inspection and re-treatment of
metallic surfaces (if necessary) with preservative is
recommended at 6 monthly intervals.
6.4 Recommended spares
Recommended spares are defined on the following
basis and contained in the table in section 8.

Class 1 (S1) – start-up and commissioning spares.

Class 2 (S2) – two year spares requirement
covering maintenance for this period.

Class 3 (S3) –capital spares requirement.
A multiplier is provided in the last column of the table
for multiple pump purchases, which can be used
where more than one pump is purchased to give the
estimated volume of spares required.
See section 8 for recommended spares.
6.5 Tools required
A typical range of tools that will be required to
maintain these pumps is listed below.
Readily available in standard tool kits, and dependent
on pump size:

Open ended spanners (wrenches) to suit up to
M 20 screws/nuts

Socket spanners (wrenches), up to M 20 screws

Allen keys, up to 10 mm (A/F)

Range of screwdrivers

Soft mallet

Thickness feeler gages
6.6 Fastener torques
Fastener size Torque Nm (lbf•ft)
M8
M10
M12
M16
M20
16 (12)
25 (18)
35 (26)
80 (59)
130 (96)
Screws for the drive end bearing cover should
be tightened uniformly to 7 Nm (5 lbf •ft).
Non-metallic gaskets incur creep
relaxation - before commissioning the pump check
and retighten fasteners to tightening torques stated.