Lubrication; Variant With Galvanic Anode; Dismantling And Re-Assembly; Dismantling - salmson S Serie Manuel D'installation Et Mise En Service

ENGLISH
Check point
State of the auxiliary systems
Motor
Shaft sealing
Leaks from gaskets
Oil level and grease quantities
Lubricants (ball bearings)
Bearings surface temperature
Cleaning
Alignment and coupling wear
Noise, vibrations
Anchoring quality
Those frequencies are given for information only. They could be used as
a basis to the creation of a maintenance plan when starting a new
installation. Depending on installation conditions and use, the
periodicity will be shortened or prolonged.
9.2.1 LUBRICATION
 Close‐coupled pumps are equipped with a long shaft motor. Ball
bearings are designed for a lifetime L10h of 20000 hours.
 The pumps equipped with an IEC adaptation lantern (biblock) receive
standard IEC air cooled motors. Ball bearings are designed for a lifetime
L10h of 40000 to 50000 hours depending on motor speed. Pump bearing
bracket is equipped with lifetime lubricated ball bearings (L10h = 20000
hours).
 The bearing brackets of the pump sets assembled on a base frame are
equipped with lifetime lubricated ball bearings (L10h = 20000 hours).
Feet mounted motors (IEC frame type B3) are fitted with lifetime
lubricated ball bearings or grease lubricated ball bearings.
9.2.1.1 MECHANICAL SEAL
S pump are supplied with a quench (grease) except when EPDM shaft
seal is used or for thermal engine driven pumps. The self automatic
greasing cartridge is delivered with the pump (not mounted). It is filled
with mineral based grease with paraffin.
Action time will be initially set to 12 months (see chapter start‐up).
9.2.2 VARIANT WITH GALVANIC ANODE :
If the « sea water » design was chosen, a sacrificial anode is fastened
onto the impeller inspection cover :
Periodicity
Depends on equipment type.
See dedicated equipment IOM
See manufacturer IOM
Weekly
Weekly
Daily / Weekly / Monthly
Replacement frequency
according ball bearing type and
shaft speed
Monthly
Twice a year
Twice a year
Monthly
Yearly
Cover fitted with 1 anode Cover fitted with 2 anodes
The loss of the anode material should be checked after 1 month, 3
months and 6 months maximum after the pump was filled with sea
water. The anode exchange is necessary when it has lost 75% in volume :
Replacement frequency depends on the water chemical composition, its
temperature, pH, resistivity, on the way the pump is operated, ...
9.3 DISMANTLING AND RE‐ASSEMBLY
9.3.1 DISMANTLING
Make sure that electric power is disconnected and could not be
switched on again by fault during maintenance operations.
• Drain the piping at least between the isolating valve installed on the
suction and discharge side.
• Remove drain plug and drain the pump casing.
• If necessary disconnect any measuring sensors and gauges.
• Pump casing can be kept fastened to pipe work.
• Remove motor fastening screws and move the motor rearward so that
there is enough space to remove the back pull‐out assembly.
When using a coupling with spacer part, it is not necessary to
move the motor rearward.
• Dismantle coupling guard and the half coupling on pump side.
9.3.1.1 DISMANTLING THE MECHANICAL SEAL
Cast iron variant :
1. Unscrew mechanical seal housing fastening nuts 6580
2. Remove lantern and impeller rearward.
3. Remove casing seal 4510.
Stainless steel variants (split casing design) :
1. Unscrew half casing fastening nuts 6580
2. Remove casing seal 4510.
3. Remove front wear plate 1915 and remove the other casing seals.
Next steps :
4. Remove impeller nut 2912 and washer 2911.
5. Slide the impeller 2200 out.
6. Remove impeller key 6710.
7. Slide out rotating part of the mechanical seal 4200 on the shaft.
9.3.1.2 DISMANTLING THE MECHANICAL SEAL HOUSING
Close coupled variants :
1. Remove motor fastening screws 6570 from motor 8020.
2. Remove mechanical seal housing 4211.
Variant with bearing bracket :
1. Remove mechanical seal housing fastening screws 6570 from housing
4011.
2. Remove mechanical seal housing 4211.
18
Consumed anode.