Flowserve LR Worthington - Manual (Page 18)

LR, LRV, LLR and LR-S USER INSTRUCTIONS ENGLISH 71569088 08-10
Page 18 of 48 flowserve.com
If there is any possibility of the system allowing the
pump to run against a closed valve or below
minimum continuous safe flow a protection device
should be installed to ensure the temperature of the
liquid does not rise to an unsafe level.
If there are any circumstances in which the system
can allow the pump to run dry, or start up empty, a
power monitor should be fitted to stop the pump or
prevent it from being started. This is particularly
relevant if the pump is handling a flammable liquid.
If leakage of product from the pump or its associated
sealing system 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 are carried out. See sections
5.7.4 and 5.7.5.
5 COMMISSIONING, START-UP,
OPERATION AND SHUTDOWN
These operations must be carried
out by fully qualified personnel.
5.1 Pre-commissioning procedure
5.1.1 Lubrication
Determine the mode of lubrication of the pump set,
eg grease, oil, product lubrication etc.
For oil lubricated pumps, fill the bearing
housing with correct grade of oil to the correct level, ie
sight glass or
constant level oiler bottle.
When fitted with a constant level oiler, the bearing
housing should be filled by unscrewing or hinging back
the transparent bottle and filling the bottle with oil.
Where an adjustable body Denco oiler is fitted this
should be set to the height shown in the following
diagram:
The oil filled bottle should then be refitted so as to
return it to the upright position. Filling should be
repeated until oil remains visible within the bottle.
The LR-S pumps are fitted with a different oiler - set
oil level D as below:
6LR-18S, 10LR-14S and 12LR-14S = 48 mm (1
7
/
8
in.)
8LR-18S, 8LR-23S and 10LR-18S = 53 mm (2
1
/
16
in.)
Approximate oil volumes are shown in section 3.4.2,
Pump and impeller data.
Grease lubricated pumps and electric motors are
supplied pre-greased.
Other drivers and gearboxes, if appropriate, should
be lubricated in accordance with their manuals.
In the case of product lubricated
bearings the source of product supply should be
checked against the order. There may be
requirements for an external clean supply, particular
supply pressure or the commencement of lubrication
supply before pump start-up.
33
D