Flowserve ESP2 - Manual (Page 31)

ESP2 USER INSTRUCTIONS ENGLISH PCN-(71569292) 4-12
Page 31 of 64
Do not overfill the motor or pump
thrust bearings with grease. If too much grease is
pumped into the bearings, they can overheat. The
maximum temperature that a rolling element bearing
should be exposed to is 105 °C (220 °F).
FIGURE 5-6: Thrust bearing lubrication intervals*
Lubricant Under 71 °C**
(160 °F) 71-80 °C
(160-175 °F) 80-94 °C
(175-200 °F)
Grease 6 months 3 months 1.5 months
* Assuming good maintenance and operation practices, and no
contamination.
** Bearing housing skin temperature.
FIGURE 5-6a: Line bearing grease lubrication*
Pumpage Clean Contains abrasives
Interval 8 hours 4-6 hours
* Interval depends upon process conditions.
* Check grease cups daily.
Figure 5-6b: Line bearing lubrication amounts
Location Amount
Intermediate Bearings [3020.1]
18 grams (0.63 oz.)
21 cm 3 (1.3 in. 3 )
Bottom Bearing [3020.2]
11 grams (0.38 oz.)
47 cm 3 (2.9 in. 3 )
Figure 5-6c: Ball bearing lubrication amounts
Group Size Initial lube Re-lubrication
Group 1 50 g (1.8 oz.) 20 g (0.7 oz.)
Group 2 75 g (2.7 oz.) 30 g (1.1 oz.)
Group 3 115 g (4.1 oz.) 45 g (1.6 oz.)
*If new bearings are not lubricated, they should be packed prior to
installation and the housing lubricated as described above.
Grease lubricated line bearings require frequent
lubrication. Grease lubricating systems may be
utilized. Follow the manufacturer’s instruction for
proper use. Lubrication intervals and amounts can be
in Figures 5-6a and 5-6b.
Flowserve offers two lubrication systems that
significantly extend the line shaft bearing lubrication
intervals. Individual 2 oz. grease cups per line shaft
bearing and a fully automated progressive lubrication
systems. Consult your Flowserve representative for
additional information.
Grease for life bearings
Double shielded or double sealed bearings
These bearings are packed with grease by the
bearing manufacturer and should not be relubricated.
The replacement interval for these bearings is greatly
affected by their operating temperature and speed.
Shielded bearings typically operate cooler.
5.3 Setting the Impeller Clearance
a) If not already done, turn off driver power and
lock it out so that the driver cannot be started
during impeller (2200) setting.
b) Rotate the shaft (2100) so that the impeller
adjustment key (6700.3) is toward you.
c) Remove the retaining ring (2530.2) and key
(6700.3) from the adjusting sleeve (1881).
d) Holding the shaft (2100) steady, turn the
adjusting sleeve (3712) counterclockwise until
the impeller (2200) is resting against the running
face of the casing (1100).
e) Back the impeller (2200) off the casing (1100) by
rotating the adjusting sleeve (3712) clockwise so
that the next slot lines up with one of the shaft
keyways:
For Groups 1 and 2, continue to rotate the sleeve
(3712) in the same direction for another four or five
combinations of shaft keyway/sleeve slots (22.5
degrees each - the keyway that lines up will alternate
as the sleeve (3712) is turned).
For Group 3, continue to rotate the sleeve (3712) in
the same direction for six or seven more
combinations of shaft keyway/sleeve slots (the
keyway that lines up will alternate as the sleeve
(3712) is turned).
f)
Install the impeller adjustment key (6700.3) and
retaining ring (2530.2) back into position.
g) Check for freedom of shaft (2100) rotation by
turning by hand.