SPP Pumps Thrustream - Manual (Page 10)

Manual No/Rev
W12-003E / 6
Operators Instructions for Horizontal
Standard Thrustream Centrifugal Pumps
Our policy is one of continuous improvement and we reserve the right to alter specifications at any time
Page 10 of 28
c) Suction Gauge Reading:
If this is lower than normal, investigate and
check that valves in the suction pipework are
fully open or that the suction lift may have
increased.
d) Discharge Gauge Reading:
If this is lower than normal, check for a leak in
the associated pipework or that a valve in the
delivery line has been opened when normally
it is partially closed.
5.4 Stopping Procedure
Stop the motor then fully close the discharge
valve.
6. Maintenance and Service
6.1 General Introduction
SPP Pumps Ltd Thrustream pumps will
provide many years of trouble free service
when maintained in accordance with these
instructions. In the event of failure of the pump
it is recommended that SPP Pumps Ltd.
Service Department are called to investigate
and
carry out repairs. The following
instructions are given to cover the main
elements of strip and rebuild but do NOT
include instructions for work that MUST be
done by an SPP Pumps Ltd. Service
Engineer.
The following hazards may arise during
maintenance work:
Fluid Pressure Jet Hazards
Check and ensure that the pump
operates at below the Maximum Working
Pressure specified in the manual or on the
pump nameplate and before maintenance,
ensure that the pump is drained down.
Hazardous Materials
Wear a suitable mask or respirator when
working with packing or gasket
components that contain fibrous material, as
these can be hazardous when the fibrous dust
is inhaled. Be cautious if other supplier's
components have been substituted for
genuine SPP Pumps Ltd parts as these may
then contain hazardous materials.
Hazardous Gases, Mists, Sprays and
Leaks
Be aware of the hazards relating to the
pumped fluid, especially the danger from
inhalation of noxious and toxic gases, skin and
eye contact or penetration. Obtain and
understand
the hazardous substance
(COSHH) data sheets relating to the pumped
fluid and note the recommended emergency
and first aid procedures.
Recommended Maintenance Schedule
INSPECTION REMARKS
Daily Checks: (Manned Installations)
Visually check pump for leaks.
Carefully check the
bearing housing for
any sign of
temperature rise.
Check the bearing housing
temperature with a suitable
thermometer & refer to Fault
Finding Chart in Section 7.
Maximum running temperature
is 80°°°°C(176°°°° F).
Check the pump for
vibration. Refer to Fault Finding Chart in
Section 7.
For mechanical seals:
Check for leaks
Renew as necessary
For soft packed pumps:
Adjust gland to
maintain slight
leakage and check
that gland drains
are clear.
When gland is fully compressed,
change or add more packing.
(Refer to Soft Packed Seal
maintenance instructions in
section 6.3).
Three Monthly Maintenance:
Lubricate the pump
bearings with 15-
20g of grease. Use Texaco Multifak All Purpose
EP2 grease or equivalent grease
to DIN 51825: KP2 K-30. Do not
overfill the bearing housing, as
the bearings will overheat if
overfilled.
Six Monthly Maintenance:
Check coupling
alignment. Check
coupling pins and
bushes for wear. Refer to maintenance instructions
adjust or renew parts as
necessary.
Check holding-
down bolts for
tightness. Tighten as necessary.
OVERHAUL
An overhaul is to be carried out when pump
performance falls below an acceptable level.
BEFORE ATTEMPTING ANY MAINTENANCE ON A
PUMP, PARTICULARLY IF IT HAS BEEN
HANDLING ANY FORM OF HAZARDOUS LIQUID,
ENSURE THAT THE UNIT IS SAFE TO WORK ON.
THE PUMP MUST BE FLUSHED THOROUGHLY
WITH A SUITABLE CLEANSER TO PURGE AWAY
ANY OF THE PRODUCT LEFT IN THE PUMP
COMPONENTS. THIS SHOULD BE CARRIED OUT
BY THE PLANT OPERATOR AND A CERTIFICATE
OF
CLEANLINESS OBTAINED BEFORE
STARTING WORK. TO AVOID ANY RISK TO
HEALTH IT IS ALSO ADVISABLE TO WEAR
PROTECTIVE CLOTHING AS RECOMMENDED BY
THE SITE SAFETY OFFICER, ESPECIALLY WHEN
REMOVING OLD SEALS OR GASKETS THAT
MAY BE CONTAMINATED.