Flowserve M-series PolyChem - Manual (Page 26)

USER INSTRUCTIONS PolyChem M-SERIES ENGLISH 71569218 07-11
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Page 26 of 60
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relevant if the pump is handling a flammable liquid. If
leakage of product from the pump can cause a hazard
it is recommended that an appropriate leakage
detection system is installed.
To prevent excessive surface temperatures at
bearings it is recommended that temperature or
vibration monitoring is carried out.
5 COMMISSIONING, STARTUP,
OPERATION AND SHUTDOWN
These operations must be carried
out by fully qualified personnel.
NEVER RUN THE PUMP DRY OR
WITHOUT PROPER PRIME (Pump flooded).
Operating the pump dry may cause immediate
damage to the bearings, magnets, etc..
5.1 Pre-commissioning procedure
5.1.1
Pre start-up checks
Prior to starting the pump it is essential that the
following checks be made. These checks are all
described in detail in the Maintenance section of this
manual.

Pump and motor properly secured to the baseplate

All fasteners tightened to the correct torque

Coupling guard in place and not rubbing

Rotation check, see section 5.3.
This is absolutely essential

Bearing lubrication

Pump instrumentation is operational

Pump is primed

Rotation of shaft by hand
As a final step in preparation for operation, it is
important to rotate the shaft by hand to be certain that
all rotating parts move freely, and that there are no
foreign objects in the pump casing.
5.2 Pump lubricants
5.2.1
Oil bath
The standard bearing housing bearings are oil bath
lubricated and are not lubricated by Flowserve.
Before operating the pump, fill the bearing housing to
the center of the oil sight glass with the proper type
oil. (See Figure 5-1 for approximate amount of oil
required - do not overfill.)
The oil level in the bearing housing must be
maintained at ±3 mm (±
1
/
8
in.) from the center of the
sight glass. The sight glass has a 6 mm (¼ in.) hole
in the center of its reflector. The bearing housing oil
level must be within the circumference of the center
hole to ensure adequate lubrication of the bearings.
See Figure 5-2 for a general description of the lubricants
to be used and Figure 5-6 for recommended lubricants.
DO NOT USE DETERGENT OILS. The oil must be
free of water, sediment, resin, soaps, acid and fillers of
any kind. It should contain rust and oxidation inhibitors.
The proper oil viscosity is determined by the bearing
housing operating temperature as given in Figure 5-3.
To add oil to the housing, clean and then remove the
vent plug [6569.2] at the top of the bearing housing,
pour in oil until it is visually half way up in the sight glass
[3855]. Fill the constant level oiler bottle, if used, and
return it to its position. The correct oil level is obtained
with the constant level oiler in its lowest position, which
results in the oil level being at the top of the oil inlet pipe
nipple, or half way up in the sight glass window. Oil
must be visible in the bottle at all times.
In many pumping applications lubricating oil becomes
contaminated before it loses its lubricating qualities or
breaks down. For this reason it is recommended that
the first oil change take place after approximately 160
hours of operation, at which time, the used oil should be
examined carefully for contaminants. During the initial
operating period monitor the bearing housing operating
temperature. Record the external bearing housing
temperature. See Figure 5-4 for maximum acceptable
temperatures. The normal oil change interval is based
on temperature and is shown in Figure 5-5.
Figure 5-1: Amount of oil required
Pump PolyChem M-series
Group A 458 ml (15.5 fl. oz.)
Group 1 251 ml (8.5 fl. oz.)
Group B 946 ml (32 fl. oz.)
Group 2 946 ml (32 fl. oz.)
Figure 5-2: Lubricant description
Mineral
oil
Quality mineral oil with rust and oxidation
inhibitors.
Synthetic
Royal Purple or Conoco SYNCON (or equivalent).
Some synthetic lubricants require Viton O-rings.
Grease
EXXON POLYREX EM (or compatible)